{"id":185009,"date":"2011-08-18T18:30:00","date_gmt":"2011-08-18T16:30:00","guid":{"rendered":"https:\/\/cms.galaxiemedia.fr\/tomshardware\/2011\/08\/18\/un-outil-pour-underclocker-les-amd-brazos\/"},"modified":"2023-06-22T18:55:13","modified_gmt":"2023-06-22T16:55:13","slug":"un-outil-pour-underclocker-les-amd-brazos","status":"publish","type":"post","link":"https:\/\/www.tomshardware.fr\/un-outil-pour-underclocker-les-amd-brazos\/","title":{"rendered":"Un outil pour underclocker les AMD \u00ab Brazos \u00bb"},"content":{"rendered":"<p><span class=\"imgContent imgRight\"><span class=\"iZoom\"><img alt=\"Image 1 : Un outil pour underclocker les AMD \u00ab Brazos \u00bb\" decoding=\"async\" width=\"200\" height=\"147\" src=\"https:\/\/www.tomshardware.fr\/content\/uploads\/sites\/3\/2011\/08\/brazostweaker-200x147.png\" class=\"attachment-purch-200 size-purch-200\" alt=\"\" \/><\/span><\/span>Vous avez une machine en plateforme \u00ab Brazos \u00bb et vous trouvez que l&#8217;autonomie n&#8217;est pas assez \u00e9lev\u00e9e ou que la machine chauffe trop ? Il y a une solution : BrazosTweaker. Ce petit programme permet en fait de r\u00e9gler finement les param\u00e8tres des diff\u00e9rents processeurs pour adapter l&#8217;usage en fonction de la charge.<\/p>\n<\/p>\n<h4>Brazos ?<\/h4>\n<\/p>\n<p>Brazos, c&#8217;est le nom qu&#8217;AMD donne \u00e0 sa plateforme basse consommation, premi\u00e8re incarnation de la solution \u00ab Fusion \u00bb. On retrouve trois solutions : <em>Ontario<\/em>, avec les C-30 et C-50, <em>Zacate<\/em> avec l&#8217;E-240 et l&#8217;E-350 et <em>Desna<\/em> avec le Z-01. Dans tous les cas, le CPU est un <em>Bobcat<\/em> (un core basse consommation mais peu performant) et un GPU de type Radeon HD 62xx ou 63xx. <\/p>\n<\/p>\n<p>BrazosTweaker permet en fait de modifier les \u00ab PState \u00bb du processeur, les diff\u00e9rents \u00e9tats propos\u00e9s dans la gestion de l&#8217;\u00e9nergie. L&#8217;id\u00e9e est simple : il est possible de modifier les r\u00e9glages par d\u00e9faut de chaque PState (trois diff\u00e9rents sur les s\u00e9ries E et deux sur les s\u00e9ries C) et de les adapter. <\/p>\n<\/p>\n<p>Pour le processeur, on peut modifier la fr\u00e9quence (sans d\u00e9passer celle d&#8217;origine) : le processeur travaille avec un bus 100 MHz qui est multipli\u00e9 par 32 et ensuite divis\u00e9 par une valeur qui peut \u00eatre modifi\u00e9e. On peut ainsi par exemple descendre le processeur \u00e0 400 MHz en mettant le diviseur \u00e0 8. La tension est aussi modifiable, ce qui permet de diminuer drastiquement la consommation dans certains cas.<\/p>\n<\/p>\n<p>Il est aussi possible d&#8217;effectuer les m\u00eames r\u00e9glages sur le \u00ab northbridge \u00bb int\u00e9gr\u00e9 dans le processeur, avec une valeur qui intervient en fait sur la fr\u00e9quence du GPU int\u00e9gr\u00e9. On peut donc jouer sur sa fr\u00e9quence et sur sa tension.<\/p>\n<\/p>\n<p>Dans les faits, il est bien \u00e9videmment n\u00e9cessaire de tester si tout est fonctionnel, une tension trop faible peut emp\u00eacher le processeur de fonctionner, mais le programme a le gros avantage de ne pas fixer les valeurs d\u00e9finitivement : un simple red\u00e9marrage de la machine permet de remettre les valeurs par d\u00e9faut. Notons que Windows, par d\u00e9faut, g\u00e8re le passage d&#8217;un PState \u00e0 un autre automatiquement mais qu&#8217;il est possible de choisir l&#8217;\u00e9tat actif dans les r\u00e9glages d&#8217;alimentation.<\/p>\n<\/p>\n<p>Le programme est gratuit et existe en deux versions : une pour les syst\u00e8mes 32 bits et une pour les syst\u00e8mes 64 bits.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Vous avez une machine en plateforme \u00ab Brazos \u00bb et vous trouvez que l'autonomie n'est pas assez \u00e9lev\u00e9e ou que la machine chauffe trop ? Il y a une solution : BrazosTweaker.<\/p>","protected":false},"author":36,"featured_media":185010,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[487,4072,4068,4071],"tags":[551],"hubs":[],"class_list":["post-185009","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualite","category-cartes-graphiques","category-informatique","category-processeurs","tag-amd"],"acf":{"post_show_excerpt":false,"post_source":{"title":"Blogeee","url":"http:\/\/www.blogeee.net\/2011\/08\/brazostweaker-le-programme-que-les-possesseurs-de-e-350-et-c-50-damd-vont-adorer\/","target":""}},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v23.1) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Un outil pour underclocker les AMD \u00ab Brazos \u00bb<\/title>\n<meta name=\"description\" content=\"Vous avez une machine en plateforme \u00ab Brazos \u00bb et vous trouvez que l&#039;autonomie n&#039;est pas assez \u00e9lev\u00e9e ou que la machine chauffe trop ? Il y a une solution : BrazosTweaker.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.tomshardware.fr\/un-outil-pour-underclocker-les-amd-brazos\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Un outil pour underclocker les AMD \u00ab Brazos \u00bb\" \/>\n<meta property=\"og:description\" content=\"Vous avez une machine en plateforme \u00ab Brazos \u00bb et vous trouvez que l&#039;autonomie n&#039;est pas assez \u00e9lev\u00e9e ou que la machine chauffe trop ? Il y a une solution : BrazosTweaker.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.tomshardware.fr\/un-outil-pour-underclocker-les-amd-brazos\/\" \/>\n<meta property=\"og:site_name\" content=\"Tom\u2019s Hardware\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/TomsHardwareFrance\/\" \/>\n<meta property=\"article:published_time\" content=\"2011-08-18T16:30:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-06-22T16:55:13+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.tomshardware.fr\/content\/uploads\/sites\/3\/2011\/08\/brazostweaker.png\" \/>\n\t<meta property=\"og:image:width\" content=\"354\" \/>\n\t<meta property=\"og:image:height\" content=\"260\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Pierre Dandumont\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@tomshardware_fr\" \/>\n<meta name=\"twitter:site\" content=\"@tomshardware_fr\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.tomshardware.fr\/un-outil-pour-underclocker-les-amd-brazos\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.tomshardware.fr\/un-outil-pour-underclocker-les-amd-brazos\/\"},\"author\":{\"name\":\"Pierre Dandumont\",\"@id\":\"https:\/\/www.tomshardware.fr\/#\/schema\/person\/17966383cb6059d95d48bbdb852df076\"},\"headline\":\"Un outil pour underclocker les AMD \u00ab Brazos \u00bb\",\"datePublished\":\"2011-08-18T16:30:00+00:00\",\"dateModified\":\"2023-06-22T16:55:13+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.tomshardware.fr\/un-outil-pour-underclocker-les-amd-brazos\/\"},\"wordCount\":414,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.tomshardware.fr\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.tomshardware.fr\/un-outil-pour-underclocker-les-amd-brazos\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.tomshardware.fr\/content\/uploads\/sites\/3\/2011\/08\/brazostweaker.png\",\"keywords\":[\"AMD\"],\"articleSection\":[\"Actualit\u00e9\",\"Cartes graphiques\",\"Informatique\",\"Processeurs\"],\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.tomshardware.fr\/un-outil-pour-underclocker-les-amd-brazos\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.tomshardware.fr\/un-outil-pour-underclocker-les-amd-brazos\/\",\"url\":\"https:\/\/www.tomshardware.fr\/un-outil-pour-underclocker-les-amd-brazos\/\",\"name\":\"Un outil pour underclocker les AMD \u00ab Brazos \u00bb\",\"isPartOf\":{\"@id\":\"https:\/\/www.tomshardware.fr\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.tomshardware.fr\/un-outil-pour-underclocker-les-amd-brazos\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.tomshardware.fr\/un-outil-pour-underclocker-les-amd-brazos\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.tomshardware.fr\/content\/uploads\/sites\/3\/2011\/08\/brazostweaker.png\",\"datePublished\":\"2011-08-18T16:30:00+00:00\",\"dateModified\":\"2023-06-22T16:55:13+00:00\",\"description\":\"Vous avez une machine en plateforme \u00ab Brazos \u00bb et vous trouvez que l'autonomie n'est pas assez \u00e9lev\u00e9e ou que la machine chauffe trop ? 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