Le site Techpower Up vient de recenser et proposer au téléchargement deux outils de flash pour les cartes graphiques NVIDIA, d'une part NVflashk et OMGVflash. Les deux outils promettent de casser les barrières mises en place par NVIDIA depuis la génération Geforce 900, avec l'introduction d'une signature numérique des Bios et d'une puce Falcon dédiée à la tâche de vérification. Les nouveaux outils permettront de modifier les cadences, les profils de ventilation, les tensions (ce qui permettra de franchir certaines limites imposées aux RTX 4090).
NVflashk :
How's it work?
When you go to flash a vBIOS to a GPU, nvflash double checks a few parameters (don't quote me on this, guessing a lot):
OMGVflash :
What can we do now:
NVflashk :
How's it work?
When you go to flash a vBIOS to a GPU, nvflash double checks a few parameters (don't quote me on this, guessing a lot):
- - GPU PCI Device ID (GPU chip, i.e. 2xxx/3xxx/4xxx) - You'll see this if you try flashing across series
- - PCI Subsystem ID (PCB ID) - You'll see this for any non-standard vBIOS
- - Board ID (PCB+GPU ID) - You'll usually see this on XOC bios or where the GPU was revised but the PCB remained the same (i.e. 1.07v 4090 revision)
- - Hierarchy (Unknown, potentially Lovelace/Turing/etc) - Dunno when you see this
- - A couple other minor items that appear to just be software-defined metadata
OMGVflash :
What can we do now:
- - Turing (RTX 2xxx Series) down to Geforce GPUs have full crossflash ability now.
- - SubSystem Vendor to Vendor crossflash ability, as long as power headers are identical (Bellow 2000 series, it adapts on 3000-4000 series) & as long as no custom i²c or voltage controller modifications exist (3000+ series)
- - Usage of this version without a ring-back server check & without a minimum-req version check
- - Ability to downgrade InfoROM & XUSB FW to remove SW EEPROM lockdown // mostly a thing between different EEPROMs like ISSI or for situations with dGPU's on Laptops or similar
- - As long as 32-bit & 8-bit checksum on usermod is correct, biosmod flash and bypass FE / VendorCert / XOC Cert / MasterCert ~ golden card system. Basically flash what you desire, as long as EEPROM size can take it.
- - Use the patched version to talk with Falcon , in case Developer knows how to contact it & utilize Nvidia™ powrprof.dll + MUTEX // example to build AIB Control tools, like GALAX NVVDD Tool
- - Basically created the foundation required to build future projects, ontop with cool features grated to MUTEX access
source : Techpower Up
Marque : NVIDIA
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Posté le 21 Août 2023 à 13:03 par Jonathan Riemain
