{"id":286460,"date":"2018-10-18T09:00:00","date_gmt":"2018-10-18T07:00:00","guid":{"rendered":"https:\/\/cms.galaxiemedia.fr\/tomshardware\/2018\/10\/18\/geforce-rtx-flash-de-bios-impossible-entre-gpu-a-et-non-a\/"},"modified":"2023-06-27T10:34:08","modified_gmt":"2023-06-27T08:34:08","slug":"geforce-rtx-flash-de-bios-impossible-entre-gpu-a-et-non-a","status":"publish","type":"post","link":"https:\/\/www.tomshardware.fr\/geforce-rtx-flash-de-bios-impossible-entre-gpu-a-et-non-a\/","title":{"rendered":"GeForce RTX : flash de BIOS impossible entre GPU ‘A’ et non ‘A’"},"content":{"rendered":"

\"Image<\/a><\/span><\/span><\/span><\/span>
On le sait depuis un moment, NVIDIA trie d\u00e9sormais ses GPU Turing<\/a> en sortie d’usine, pour vendre des puces \u00ab A \u00bb de meilleure qualit\u00e9 aux fabricants partenaires souhaitant proposer des cartes haut de gamme overclock\u00e9es. Des puces premium vendues plus cher que les GPU \u00ab non A \u00bb, r\u00e9serv\u00e9s aux cartes non overclock\u00e9es. Aujourd’hui, nous pouvons confirmer que les deux univers sont bien verrouill\u00e9s : il est impossible de flasher une carte non overclock\u00e9e avec un BIOS de carte overclock\u00e9e, aussi proches soient-elles.<\/p>\n

Les Power Target bien d\u00e9finis<\/h3>\n

Nous avons d’abord tent\u00e9 de flasher le BIOS d’une RTX 2080 Ti Founders Edition avec celui de notre mod\u00e8le overclock\u00e9 sign\u00e9 KFA2 (qui ont le m\u00eame PCB). La Founders Edition n’avait pas de GPU \u00ab A \u00bb, et donc un ID diff\u00e9rent. R\u00e9sultat : impossible d’injecter le nouveau BIOS qui ne correspondait pas \u00e0 la carte.<\/p>\n

<\/p>\n

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\"Image<\/a><\/span><\/td>\n\"Image<\/a><\/span><\/td>\n<\/tr>\n<\/table><\/div>\n

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\"Image<\/a><\/span><\/td>\n\"Image<\/a><\/span><\/td>\n<\/tr>\n<\/table><\/div>\n

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Nous avons ensuite tent\u00e9 de flasher une MSI RTX 2070 Armor avec le BIOS du mod\u00e8le overclock\u00e9, la MSI RTX 2070 Gaming Z. Impossible aussi, car la premi\u00e8re carte est sur un GPU \u00ab non A \u00bb, alors que la Gaming Z est sur GPU \u00ab A \u00bb. Comme on peut le voir, les Power Target des deux cartes sont bien diff\u00e9rents : la Armor est \u00e0 175 W (+112 % \u00e0 200 W max), alors que la Gaming Z est \u00e0 225 W et 250 W au maximum (avec une fr\u00e9quence r\u00e9gl\u00e9e \u00e0 200 MHz de plus en usine, gr\u00e2ce \u00e0 son GPU de meilleur qualit\u00e9).<\/p>\n

\"Image<\/a><\/span><\/span><\/span><\/span><\/p>\n

On voit bien que chaque carte RTX a deux ID diff\u00e9rentes suivant la qualit\u00e9 de son GPU. Les pr\u00e9c\u00e9dentes pratiques sont d\u00e9sormais r\u00e9volues : impossible de passer son Armor \u00e0 250 W pour tenter sa chance dans l’OC du GPU. Certains commencent donc \u00e0 envisager une modification mat\u00e9rielle de la carte (une soudure ou deux) pour changer son ID et contourner le probl\u00e8me. Mais est-ce bien utile, sachant que le GPU en question est certifi\u00e9 mauvais pour l’overclocking apr\u00e8s un test en usine ?<\/p>\n

\"Image<\/a><\/span><\/span><\/span><\/span><\/p>\n

Bref, il y a fort \u00e0 parier que toutes les cartes non overclock\u00e9es, sur GPU \u00ab non A \u00bb, seront cantonn\u00e9es \u00e0 un Power Target unique, fix\u00e9 par NVIDIA. Les autres cartes sur GPU \u00ab A \u00bb auront un peu plus le champs libre, surtout si elles profitent des GPU \u00ab A \u00bb d’excellente qualit\u00e9, vendus encore plus cher<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"

Des Power Target contr\u00f4l\u00e9s aux petits oignons<\/p>","protected":false},"author":82,"featured_media":286461,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"ep_exclude_from_search":false,"footnotes":""},"categories":[487,4072],"tags":[],"hubs":[],"acf":{"post_show_excerpt":true,"post_source":{"title":"Tom's Hardware FR","url":"http:\/\/www.presence-pc.com\/","target":""}},"yoast_head":"\nGeForce RTX : flash de BIOS impossible entre GPU 'A' et non 'A'<\/title>\n<meta name=\"description\" content=\"Des Power Target contr\u00f4l\u00e9s aux petits oignons\" \/>\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\/geforce-rtx-flash-de-bios-impossible-entre-gpu-a-et-non-a\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" 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