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data-event-name="pinnable-header.vector-toc.pin">sposta nella barra laterale</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">nascondi</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">Inizio</div> </a> </li> <li id="toc-Etimologia" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Etimologia"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Etimologia</span> </div> </a> <ul id="toc-Etimologia-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Descrizione" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Descrizione"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Descrizione</span> </div> </a> <button aria-controls="toc-Descrizione-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Attiva/disattiva la sottosezione Descrizione</span> </button> <ul id="toc-Descrizione-sublist" class="vector-toc-list"> <li id="toc-Importanza" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Importanza"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1</span> <span>Importanza</span> </div> </a> <ul id="toc-Importanza-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Sviluppi_recenti" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Sviluppi_recenti"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.2</span> <span>Sviluppi recenti</span> </div> </a> <ul id="toc-Sviluppi_recenti-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Northbridge_e_overclock" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Northbridge_e_overclock"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.3</span> <span>Northbridge e overclock</span> </div> </a> <ul id="toc-Northbridge_e_overclock-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Note" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Note"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Note</span> </div> </a> <ul id="toc-Note-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Voci_correlate" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Voci_correlate"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Voci correlate</span> </div> </a> <ul id="toc-Voci_correlate-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Altri_progetti" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Altri_progetti"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Altri progetti</span> </div> </a> <ul id="toc-Altri_progetti-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Collegamenti_esterni" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Collegamenti_esterni"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>Collegamenti esterni</span> </div> </a> <ul id="toc-Collegamenti_esterni-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Indice" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" title="Indice" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Mostra/Nascondi l'indice" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Mostra/Nascondi l'indice</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Northbridge</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Vai a una voce in un'altra lingua. Disponibile in 27 lingue" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-27" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">27 lingue</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/NorthBridge" title="NorthBridge - catalano" lang="ca" hreflang="ca" data-title="NorthBridge" data-language-autonym="Català" data-language-local-name="catalano" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Northbridge" title="Northbridge - ceco" lang="cs" hreflang="cs" data-title="Northbridge" data-language-autonym="Čeština" data-language-local-name="ceco" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Northbridge" title="Northbridge - danese" lang="da" hreflang="da" data-title="Northbridge" data-language-autonym="Dansk" data-language-local-name="danese" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Northbridge" title="Northbridge - tedesco" lang="de" hreflang="de" data-title="Northbridge" data-language-autonym="Deutsch" data-language-local-name="tedesco" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/Northbridge" title="Northbridge - greco" lang="el" hreflang="el" data-title="Northbridge" data-language-autonym="Ελληνικά" data-language-local-name="greco" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Northbridge_(computing)" title="Northbridge (computing) - inglese" lang="en" hreflang="en" data-title="Northbridge (computing)" data-language-autonym="English" data-language-local-name="inglese" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Norda_ponto" title="Norda ponto - esperanto" lang="eo" hreflang="eo" data-title="Norda ponto" data-language-autonym="Esperanto" data-language-local-name="esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Puente_norte" title="Puente norte - spagnolo" lang="es" hreflang="es" data-title="Puente norte" data-language-autonym="Español" data-language-local-name="spagnolo" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/P%C3%B5hjasild" title="Põhjasild - estone" lang="et" hreflang="et" data-title="Põhjasild" data-language-autonym="Eesti" data-language-local-name="estone" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D9%BE%D9%84_%D8%B4%D9%85%D8%A7%D9%84%DB%8C" title="پل شمالی - persiano" lang="fa" hreflang="fa" data-title="پل شمالی" data-language-autonym="فارسی" data-language-local-name="persiano" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Pohjoissilta" title="Pohjoissilta - finlandese" lang="fi" hreflang="fi" data-title="Pohjoissilta" data-language-autonym="Suomi" data-language-local-name="finlandese" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Northbridge" title="Northbridge - francese" lang="fr" hreflang="fr" data-title="Northbridge" data-language-autonym="Français" data-language-local-name="francese" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/%C3%89szaki_h%C3%ADd" title="Északi híd - ungherese" lang="hu" hreflang="hu" data-title="Északi híd" data-language-autonym="Magyar" data-language-local-name="ungherese" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EB%85%B8%EC%8A%A4%EB%B8%8C%EB%A6%AC%EC%A7%80" title="노스브리지 - coreano" lang="ko" hreflang="ko" data-title="노스브리지" data-language-autonym="한국어" data-language-local-name="coreano" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Jejambat_utara" title="Jejambat utara - malese" lang="ms" hreflang="ms" data-title="Jejambat utara" data-language-autonym="Bahasa Melayu" data-language-local-name="malese" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Northbridge" title="Northbridge - olandese" lang="nl" hreflang="nl" data-title="Northbridge" data-language-autonym="Nederlands" data-language-local-name="olandese" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Mostek_p%C3%B3%C5%82nocny" title="Mostek północny - polacco" lang="pl" hreflang="pl" data-title="Mostek północny" data-language-autonym="Polski" data-language-local-name="polacco" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Northbridge" title="Northbridge - portoghese" lang="pt" hreflang="pt" data-title="Northbridge" data-language-autonym="Português" data-language-local-name="portoghese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Northbridge" title="Northbridge - rumeno" lang="ro" hreflang="ro" data-title="Northbridge" data-language-autonym="Română" data-language-local-name="rumeno" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%A1%D0%B5%D0%B2%D0%B5%D1%80%D0%BD%D1%8B%D0%B9_%D0%BC%D0%BE%D1%81%D1%82_(%D0%BA%D0%BE%D0%BC%D0%BF%D1%8C%D1%8E%D1%82%D0%B5%D1%80)" title="Северный мост (компьютер) - russo" lang="ru" hreflang="ru" data-title="Северный мост (компьютер)" data-language-autonym="Русский" data-language-local-name="russo" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Northbridge" title="Northbridge - Simple English" lang="en-simple" hreflang="en-simple" data-title="Northbridge" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Northbridge" title="Northbridge - slovacco" lang="sk" hreflang="sk" data-title="Northbridge" data-language-autonym="Slovenčina" data-language-local-name="slovacco" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/Severni_most" title="Severni most - serbo" lang="sr" hreflang="sr" data-title="Severni most" data-language-autonym="Српски / srpski" data-language-local-name="serbo" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Nordbrygga" title="Nordbrygga - svedese" lang="sv" hreflang="sv" data-title="Nordbrygga" data-language-autonym="Svenska" data-language-local-name="svedese" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%9F%D1%96%D0%B2%D0%BD%D1%96%D1%87%D0%BD%D0%B8%D0%B9_%D0%BC%D1%96%D1%81%D1%82_(%D0%BA%D0%BE%D0%BC%D0%BF%27%D1%8E%D1%82%D0%B5%D1%80)" title="Північний міст (комп'ютер) - ucraino" lang="uk" hreflang="uk" data-title="Північний міст (комп'ютер)" data-language-autonym="Українська" data-language-local-name="ucraino" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/Chip_c%E1%BA%A7u_b%E1%BA%AFc" title="Chip cầu bắc - vietnamita" lang="vi" hreflang="vi" data-title="Chip cầu bắc" data-language-autonym="Tiếng Việt" data-language-local-name="vietnamita" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E5%8C%97%E6%A1%A5" title="北桥 - cinese" lang="zh" hreflang="zh" data-title="北桥" data-language-autonym="中文" data-language-local-name="cinese" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q830445#sitelinks-wikipedia" title="Modifica collegamenti interlinguistici" class="wbc-editpage">Modifica collegamenti</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Namespace"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Northbridge" title="Vedi la voce [c]" accesskey="c"><span>Voce</span></a></li><li id="ca-talk" class="vector-tab-noicon mw-list-item"><a href="/wiki/Discussione:Northbridge" rel="discussion" title="Vedi le discussioni relative a questa pagina [t]" accesskey="t"><span>Discussione</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown emptyPortlet" > <input type="checkbox" id="vector-variants-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-variants-dropdown" class="vector-dropdown-checkbox " aria-label="Cambia versione linguistica" > <label id="vector-variants-dropdown-label" for="vector-variants-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">italiano</span> </label> <div class="vector-dropdown-content"> <div id="p-variants" class="vector-menu mw-portlet mw-portlet-variants emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> </div> </div> </nav> </div> <div id="right-navigation" class="vector-collapsible"> <nav aria-label="Visite"> <div id="p-views" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-views" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-view" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Northbridge"><span>Leggi</span></a></li><li id="ca-ve-edit" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Northbridge&veaction=edit" title="Modifica questa pagina [v]" accesskey="v"><span>Modifica</span></a></li><li id="ca-edit" class="collapsible vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Northbridge&action=edit" title="Modifica il wikitesto di questa pagina [e]" accesskey="e"><span>Modifica wikitesto</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Northbridge&action=history" title="Versioni precedenti di questa pagina [h]" accesskey="h"><span>Cronologia</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="Strumenti pagine"> <div id="vector-page-tools-dropdown" class="vector-dropdown vector-page-tools-dropdown" > <input type="checkbox" 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> <div class="vector-pinnable-header-label">Strumenti</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">sposta nella barra laterale</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">nascondi</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="Altre opzioni" > <div class="vector-menu-heading"> Azioni </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/Northbridge"><span>Leggi</span></a></li><li id="ca-more-ve-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Northbridge&veaction=edit" title="Modifica questa pagina [v]" accesskey="v"><span>Modifica</span></a></li><li id="ca-more-edit" class="collapsible vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Northbridge&action=edit" title="Modifica il wikitesto di questa pagina [e]" accesskey="e"><span>Modifica wikitesto</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Northbridge&action=history"><span>Cronologia</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> Generale </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Speciale:PuntanoQui/Northbridge" title="Elenco di tutte le pagine che sono collegate a questa [j]" accesskey="j"><span>Puntano qui</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Speciale:ModificheCorrelate/Northbridge" rel="nofollow" title="Elenco 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.5em}body:not(.skin-minerva) .mw-parser-output .hatnote-text{padding-left:.5em}body.skin-minerva .mw-parser-output .hatnote-icon{padding-right:8px}body.skin-minerva .mw-parser-output .hatnote-icon img{height:auto;width:16px}body.skin--responsive .mw-parser-output .hatnote a.new{color:#d73333}body.skin--responsive .mw-parser-output .hatnote a.new:visited{color:#a55858}</style> <div class="hatnote noprint nota-disambigua"> <div class="hatnote-content"><span class="noviewer hatnote-icon" typeof="mw:File"><span><img src="//upload.wikimedia.org/wikipedia/commons/thumb/b/bc/Nota_disambigua.svg/18px-Nota_disambigua.svg.png" decoding="async" width="18" height="18" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/bc/Nota_disambigua.svg/27px-Nota_disambigua.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/bc/Nota_disambigua.svg/36px-Nota_disambigua.svg.png 2x" data-file-width="200" data-file-height="200" /></span></span> <span class="hatnote-text"><a href="/wiki/Aiuto:Disambiguazione" title="Aiuto:Disambiguazione">Disambiguazione</a> – Se stai cercando altri significati, vedi <b><a href="/wiki/Northbridge_(disambigua)" class="mw-disambig" title="Northbridge (disambigua)">Northbridge (disambigua)</a></b>.</span></div> </div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Chipset_schematic.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/5/51/Chipset_schematic.svg/220px-Chipset_schematic.svg.png" decoding="async" width="220" height="260" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/51/Chipset_schematic.svg/330px-Chipset_schematic.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/51/Chipset_schematic.svg/440px-Chipset_schematic.svg.png 2x" data-file-width="435" data-file-height="515" /></a><figcaption>Struttura ad albero di un Chipset, si notano il <b>Northbridge</b> ed il <b>Southbridge</b>.</figcaption></figure> <p>Il <b>northbridge</b> (<abbr title="letteralmente">lett.</abbr> "ponte nord"), conosciuto anche come <b>Memory Controller Hub</b> (<b>MCH</b>) o <b>Host Bridge</b>, costituisce, insieme al <a href="/wiki/Southbridge_(elettronica)" title="Southbridge (elettronica)">southbridge</a><sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> la parte logica del <a href="/wiki/Chipset" title="Chipset">chipset</a> di una <a href="/wiki/Scheda_madre" title="Scheda madre">scheda madre</a>, essendo il <a href="/wiki/Circuito_integrato" title="Circuito integrato">circuito integrato</a> che mette in relazione i vari <a href="/wiki/Bus_(informatica)" title="Bus (informatica)">bus</a> collegati alla <a href="/wiki/CPU" title="CPU">CPU</a> e ai dispositivi più veloci (chipset <a href="/wiki/Intel" title="Intel">Intel</a>)<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Etimologia">Etimologia</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Northbridge&veaction=edit&section=1" title="Modifica la sezione Etimologia" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Northbridge&action=edit&section=1" title="Edit section's source code: Etimologia"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Il nome deriva dal disegno dell'architettura nel modo di rappresentarlo. La CPU dovrebbe essere al vertice della mappa, dunque a nord. La CPU dovrebbe essere connessa al chipset tramite un ponte veloce situato a nord rispetto alle altre periferiche disegnate. Il northbridge, a sua volta, dovrebbe essere connesso con il resto del chipset tramite un ponte lento (il <a href="/wiki/Southbridge_(elettronica)" title="Southbridge (elettronica)">southbridge</a>) situato a sud, oltre le altre periferiche di sistema disegnate. </p> <div class="mw-heading mw-heading2"><h2 id="Descrizione">Descrizione</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Northbridge&veaction=edit&section=2" title="Modifica la sezione Descrizione" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Northbridge&action=edit&section=2" title="Edit section's source code: Descrizione"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Il northbridge comunica con <a href="/wiki/CPU" title="CPU">CPU</a>, <a href="/wiki/RAM" title="RAM">RAM</a>, <a href="/wiki/Accelerated_Graphics_Port" title="Accelerated Graphics Port">AGP</a> o PCI Express e con il Southbridge. Alcuni northbridge contengono anche un controller video integrato, che è conosciuto anche come Graphic and Memory Controller HUB (GMCH). Per via dei diversi tipi di processori e di tipologie di RAM i chipset non sono generici, ma specifici per ogni famiglia (o classi di famiglie) di processori e di <a href="/wiki/RAM" title="RAM">RAM</a>. Per esempio il northbridge <a href="/wiki/NVIDIA" title="NVIDIA">NVIDIA</a> <a href="/w/index.php?title=NForce2&action=edit&redlink=1" class="new" title="NForce2 (la pagina non esiste)">nForce2</a> può lavorare solo con <a href="/wiki/CPU" title="CPU">CPU</a> <a href="/wiki/Duron" title="Duron">Duron</a>, <a href="/wiki/Athlon" title="Athlon">Athlon</a> e <a href="/wiki/Athlon_XP" title="Athlon XP">Athlon XP</a> combinati con RAM di tipo <a href="/wiki/DDR_SDRAM" title="DDR SDRAM">DDR SDRAM</a>. Allo stesso modo i chipset <a href="/wiki/Intel" title="Intel">Intel</a> i875 lavorano solo con sistemi che usano processori <a href="/wiki/Pentium_4" title="Pentium 4">Pentium 4</a>, che hanno una velocità di clock superiore a 1,3 GHz, e che utilizzano RAM di tipo DDR SDRAM<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-:0_5-0" class="reference"><a href="#cite_note-:0-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup>. </p> <div class="mw-heading mw-heading3"><h3 id="Importanza">Importanza</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Northbridge&veaction=edit&section=3" title="Modifica la sezione Importanza" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Northbridge&action=edit&section=3" title="Edit section's source code: Importanza"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Il northbridge su una scheda madre è il fattore che determina tipologia, numero e velocità della (delle) CPU(s), quantità e velocità della <a href="/wiki/RAM" title="RAM">RAM</a> che può essere utilizzata. Inoltre svolge il ruolo di regolazione della tensione e del numero di connessioni con le altre periferiche<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup>. </p><p>Un northbridge di solito lavora solo con uno o due southbridge ASICs; per questo, alcune caratteristiche e/o prestazioni date al sistema possono essere limitate dalle tecnologie disponibili dal southbridge ad esso collegato<sup id="cite_ref-:0_5-1" class="reference"><a href="#cite_note-:0-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup>. </p> <div class="mw-heading mw-heading3"><h3 id="Sviluppi_recenti">Sviluppi recenti</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Northbridge&veaction=edit&section=4" title="Modifica la sezione Sviluppi recenti" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Northbridge&action=edit&section=4" title="Edit section's source code: Sviluppi recenti"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:I815EP.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/2/2b/I815EP.png/220px-I815EP.png" decoding="async" width="220" height="219" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/2b/I815EP.png/330px-I815EP.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/2b/I815EP.png/440px-I815EP.png 2x" data-file-width="745" data-file-height="741" /></a><figcaption>Northbridge <a href="/wiki/Intel" title="Intel">Intel</a> 815EP</figcaption></figure> <p>Il memory controller, che mette in comunicazione la <a href="/wiki/CPU" title="CPU">CPU</a> e le <a href="/wiki/RAM" title="RAM">RAM</a>, è stato spostato sul <a href="/wiki/Die_(elettronica)" title="Die (elettronica)">piedino</a> del processore negli AMD64. Altri produttori di <a href="/wiki/CPU" title="CPU">CPU</a> hanno considerato questo cambiamento per i loro prodotti, come Intel e IBM<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup>. </p><p>Un esempio è il chipset dell'NVIDIA nForce3 per i sistemi AMD64 che è su singolo chip. Questo combina tutte le caratteristiche di un normale southbridge con una porta AGP connessa direttamente alla <a href="/wiki/CPU" title="CPU">CPU</a><sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup>. </p><p>In futuro la soluzione integrata sul die sembra essere privilegiata rispetto alla precedente separazione del chipset. </p> <div class="mw-heading mw-heading3"><h3 id="Northbridge_e_overclock">Northbridge e overclock</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Northbridge&veaction=edit&section=5" title="Modifica la sezione Northbridge e overclock" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Northbridge&action=edit&section=5" title="Edit section's source code: Northbridge e overclock"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Il Northbridge gioca un ruolo importante nell'<a href="/wiki/Overclock" class="mw-redirect" title="Overclock">overclock</a> del processore; la sua frequenza è usata come base per il processore per stabilire la propria frequenza operativa. Nei computer di oggi il chipset diventa estremamente caldo, come conseguenza dell'aumentata velocità dei computer. È tipico quindi usare dei dissipatori attivi o passivi per dissipare il notevole calore prodotto dallo stesso chipset<sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup>. </p> <div class="mw-heading mw-heading2"><h2 id="Note">Note</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Northbridge&veaction=edit&section=6" title="Modifica la sezione Note" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Northbridge&action=edit&section=6" title="Edit section's source code: Note"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-1"><a href="#cite_ref-1"><b>^</b></a> <span class="reference-text"><cite class="citation web" style="font-style:normal"> <a rel="nofollow" class="external text" href="http://whatis.techtarget.com/definition/Southbridge"><span style="font-style:italic;">Southbridge</span></a>, su <span style="font-style:italic;">whatis.techtarget.com</span>, TechTarget. <small>URL consultato il 4 gennaio 2016</small>.</cite></span> </li> <li id="cite_note-2"><a href="#cite_ref-2"><b>^</b></a> <span class="reference-text"><cite class="citation web" style="font-style:normal"> <a rel="nofollow" class="external text" href="https://www.pcmag.com/encyclopedia/term/48076/northbridge"><span style="font-style:italic;">Definition of:Northbridge</span></a>, su <span style="font-style:italic;">pcmag.com</span>, PC Magazine. <small>URL consultato il 26 settembre 2015</small>.</cite></span> </li> <li id="cite_note-3"><a href="#cite_ref-3"><b>^</b></a> <span class="reference-text"><cite class="citation web" style="font-style:normal"> George Jones, <a rel="nofollow" class="external text" href="http://www.informit.com/articles/article.aspx?p=339936"><span style="font-style:italic;">Motherboards & Core-Logic Chipsets: The Deep Stuff | What the North Bridge and South Bridge Do</span></a>, su <span style="font-style:italic;">informit.com</span>, 22 ottobre 2004. <small>URL consultato il 7 maggio 2015</small>.</cite></span> </li> <li id="cite_note-4"><a href="#cite_ref-4"><b>^</b></a> <span class="reference-text">George Jones - Maximum PC 2005 Buyer's Guide - Prentice Hall PTR - <a href="/wiki/Speciale:RicercaISBN/0-7686-6312-1" title="Speciale:RicercaISBN/0-7686-6312-1">ISBN 0-7686-6312-1</a></span> </li> <li id="cite_note-:0-5"><span class="mw-cite-backlink"><b>^</b> <sup><i><a href="#cite_ref-:0_5-0">a</a></i></sup> <sup><i><a href="#cite_ref-:0_5-1">b</a></i></sup></span> <span class="reference-text"><cite class="citation web" style="font-style:normal"> <a rel="nofollow" class="external text" href="https://www.fastweb.it/internet/northbridge-e-southbridge-cosa-sono-e-a-cosa-servono/"><span style="font-style:italic;">Cosa sono northbridge e southbridge</span></a>, su <span style="font-style:italic;">Fastweb.it</span>. <small>URL consultato il 27 ottobre 2021</small>.</cite></span> </li> <li id="cite_note-6"><a href="#cite_ref-6"><b>^</b></a> <span class="reference-text"><cite class="citation web" style="font-style:normal"> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20211027070321/https://sites.google.com/site/componentiprincipalidelpc/southbridge"><span style="font-style:italic;">Northbridge e Southbridge - Componenti principali del pc</span></a>, su <span style="font-style:italic;">sites.google.com</span>. <small>URL consultato il 27 ottobre 2021</small> <small>(archiviato dall'<abbr title="https://sites.google.com/site/componentiprincipalidelpc/southbridge">url originale</abbr> il 27 ottobre 2021)</small>.</cite></span> </li> <li id="cite_note-7"><a href="#cite_ref-7"><b>^</b></a> <span class="reference-text"><cite class="citation web" style="font-style:normal">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) <a rel="nofollow" class="external text" href="https://www.pcmag.com/encyclopedia/term/northbridge"><span style="font-style:italic;">Definition of Northbridge</span></a>, su <span style="font-style:italic;">PCMAG</span>. <small>URL consultato il 27 ottobre 2021</small>.</cite></span> </li> <li id="cite_note-8"><a href="#cite_ref-8"><b>^</b></a> <span class="reference-text"><cite class="citation web" style="font-style:normal"> <a rel="nofollow" class="external text" href="https://vitolavecchia.altervista.org/caratteristiche-e-differenze-tra-northbridge-e-southbridge-in-informatica/"><span style="font-style:italic;">Caratteristiche e differenze tra Northbridge e Southbridge in informatica</span></a>, su <span style="font-style:italic;">Informatica e Ingegneria Online</span>, 4 maggio 2019. <small>URL consultato il 27 ottobre 2021</small>.</cite></span> </li> <li id="cite_note-9"><a href="#cite_ref-9"><b>^</b></a> <span class="reference-text"><cite class="citation web" style="font-style:normal">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) Joe C, <a rel="nofollow" class="external text" href="https://www.overclockers.com/the-importance-of-northbridge-overclocking-with-the-phenom-ii/"><span style="font-style:italic;">The Importance of Northbridge Overclocking with the Phenom II</span></a>, su <span style="font-style:italic;">Overclockers</span>, 25 settembre 2009. <small>URL consultato il 27 ottobre 2021</small>.</cite></span> </li> </ol></div> <div class="mw-heading mw-heading2"><h2 id="Voci_correlate">Voci correlate</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Northbridge&veaction=edit&section=7" title="Modifica la sezione Voci correlate" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Northbridge&action=edit&section=7" title="Edit section's source code: Voci correlate"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Chipset" title="Chipset">Chipset</a></li> <li><a href="/wiki/Southbridge_(elettronica)" title="Southbridge (elettronica)">southbridge</a></li> <li><a href="/wiki/Scheda_madre" title="Scheda madre">Scheda madre</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="Altri_progetti">Altri progetti</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Northbridge&veaction=edit&section=8" title="Modifica la sezione Altri progetti" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Northbridge&action=edit&section=8" title="Edit section's source code: Altri progetti"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <div id="interProject" class="toccolours" style="display: none; clear: both; margin-top: 2em"><p id="sisterProjects" style="background-color: #efefef; color: black; font-weight: bold; margin: 0"><span>Altri progetti</span></p><ul title="Collegamenti verso gli altri progetti Wikimedia"> <li class="" title=""><span class="plainlinks" title="commons:Category:North bridges"><a class="external text" href="https://commons.wikimedia.org/wiki/Category:North_bridges?uselang=it">Wikimedia Commons</a></span></li></ul></div> <ul><li><span typeof="mw:File"><a href="https://commons.wikimedia.org/wiki/?uselang=it" title="Collabora a Wikimedia Commons"><img alt="Collabora a Wikimedia Commons" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/18px-Commons-logo.svg.png" decoding="async" width="18" height="24" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/27px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/36px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></a></span> <span class="plainlinks"><a class="external text" href="https://commons.wikimedia.org/wiki/?uselang=it">Wikimedia Commons</a></span> contiene immagini o altri file sul <b><span class="plainlinks"><a class="external text" href="https://commons.wikimedia.org/wiki/Category:North_bridges?uselang=it">northbridge</a></span></b></li></ul> <div class="mw-heading mw-heading2"><h2 id="Collegamenti_esterni">Collegamenti esterni</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Northbridge&veaction=edit&section=9" title="Modifica la sezione Collegamenti esterni" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Northbridge&action=edit&section=9" title="Edit section's source code: Collegamenti esterni"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><cite id="CITEREFFOLDOC" class="citation testo" style="font-style:normal">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) Denis Howe, <span style="font-style:italic;"><a href="https://foldoc.org/Northbridge" class="extiw" title="foldoc:Northbridge">Northbridge</a></span>, in <span style="font-style:italic;"><a href="/wiki/Free_On-line_Dictionary_of_Computing" title="Free On-line Dictionary of Computing">Free On-line Dictionary of Computing</a></span>.</cite> Disponibile con licenza <a href="/wiki/GNU_Free_Documentation_License" title="GNU Free Documentation License">GFDL</a></li> <li><cite class="citation web" style="font-style:normal"> <a rel="nofollow" class="external text" href="http://www.appuntidigitali.it/4100/a-proposito-di-memory-controller/"><span style="font-style:italic;">A proposito di memory controller……</span></a>, su <span style="font-style:italic;">appuntidigitali.it</span>.</cite></li></ul> <div class="noprint" style="width:100%; padding: 3px 0; display: flex; flex-wrap: wrap; row-gap: 4px; column-gap: 8px; box-sizing: border-box;"><div style="flex-grow: 1"><style data-mw-deduplicate="TemplateStyles:r140555418">.mw-parser-output .itwiki-template-occhiello{width:100%;line-height:25px;border:1px solid #CCF;background-color:#F0EEFF;box-sizing:border-box}.mw-parser-output .itwiki-template-occhiello-progetto{background-color:#FAFAFA}@media screen{html.skin-theme-clientpref-night .mw-parser-output .itwiki-template-occhiello{background-color:#202122;border-color:#54595D}html.skin-theme-clientpref-night .mw-parser-output .itwiki-template-occhiello-progetto{background-color:#282929}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .itwiki-template-occhiello{background-color:#202122;border-color:#54595D}html.skin-theme-clientpref-os .mw-parser-output .itwiki-template-occhiello-progetto{background-color:#282929}}</style><div class="itwiki-template-occhiello"><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Computer_n_screen.svg" class="mw-file-description" title="Informatica"><img alt=" " src="//upload.wikimedia.org/wikipedia/commons/thumb/7/77/Computer_n_screen.svg/24px-Computer_n_screen.svg.png" decoding="async" width="24" height="25" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/77/Computer_n_screen.svg/37px-Computer_n_screen.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/77/Computer_n_screen.svg/48px-Computer_n_screen.svg.png 2x" data-file-width="119" data-file-height="123" /></a></span> <b><a href="/wiki/Portale:Informatica" title="Portale:Informatica">Portale Informatica</a></b>: accedi alle voci di Wikipedia che trattano di informatica</div></div></div>    </div><noscript><img src="https://auth.wikimedia.org/loginwiki/wiki/Special:CentralAutoLogin/start?useformat=desktop&type=1x1&usesul3=1" alt="" width="1" height="1" style="border: none; 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