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Does GPU-Z make bad dumps of VGA BIOSes?

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I have noticed that possibly GPU-Z makes bad dumps of VGA BIOSes, at least with the old NVIDIA cards I own to test with (Asus EN7800GTX 256 and XFX 7900 GTX EE, both with untouched BIOS). The BIOS dump made by GPU-Z doesn't match the one performed by another utilities, there are 24 bytes which differ from the others dumps. The old ATiTool program, RivaTuner (/bi parameter) and NVFLASH for Windows dump matching files.

Screenshot of hashes (I have uploaded the files into the attached zip file):
 

Attachments

  • Test.zip
    170 KB · Views: 206
Last edited:

W1zzard

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thanks for the attachment, looks like you are right

do you have an instant messenger? my details are on the left of this post
 
Joined
Mar 12, 2013
Messages
7 (0.00/day)
Location
Spain
System Name Main PC
Processor Intel Core i3 3220T
Motherboard Gigabyte GA-B75-D3V
Cooling For CPU and VGA: standard cooling systems / for case: Scythe Gentle Typhoon 120x120mm
Memory 2x2 GB F3-10666CL9-2GBRL
Video Card(s) XFX GeForce 7900 GTX Extreme Edition
Storage SAMSUNG SSD 830 + ST2000DM001
Display(s) Benq GL940
Case Aerocool PGS VS-3 Advance
Audio Device(s) Creative X-Fi Xtreme Music
Power Supply Seasonic S12II-380Bronze
Software Windows Server 2003 Enterprise, from MSDN and unmodified
No, I don't have any instant messenger (I closed my accounts a time ago). Do I need to perform more tests?


Edit. I have performed another test.

- I have downloaded this official BIOS for 7800 GTX 256 MB card:
Code:
ftp://ftp.leadtek.com.tw/entertainment_graphics/BIOS/050628_PX7800GTX/2A30p.zip

-I have run these command lines (I use nvflash for Windows 5.105, newer release cannot erase EEPROM) to erase the EEPROM and program the new BIOS file:
nvflash --eraseeeprom
nvflash -5 -6 pal45.rom

-I have rebooted twice the system, so that Windows can install properly the display drive (due to new subsys ID of VGA card). Then I have dumped the BIOS, same method than before: nvflash for Windows, ATiTool, RivaTuner (/bi parameter) and GPU-Z (latest release). Nvflash, ATiTool and RivaTuner dump identical BIOSes, which match the one I have programeed. The one dumped by GPU-Z differs from the original BIOS programmed. Screenshot of hashes and dumped BIOS files attached.
 

Attachments

  • Test2.zip
    171.3 KB · Views: 186
  • hashes2.png
    hashes2.png
    21.4 KB · Views: 656
Last edited:
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Hmm weird i would like to know whats diffrent about this gpuz dump ? whats changed ect ? worth re downloading my custom bios and reflashing ? as previously i used gpuz to do the ripping out of the rom ect but if its different in some way i would like to know cheers.
 

W1zzard

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Messages
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Processor Ryzen 7 5700X
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Display(s) 30" 2560x1600 + 19" 1280x1024
Software Windows 10 64-bit
Older NVIDIA cards have issues with ROM reading, some bits are randomly read out wrong. Reading the same data multiple times usually helps. Trying to find a fix
 
Joined
Feb 21, 2005
Messages
102 (0.01/day)
System Name 5870 Xtreme Xfire System SpeC
Processor Intel I7 920 @ 4.2 HT
Motherboard Biostar Tpower X58
Cooling Thermal Right Extreme 120 - Push Pull Config
Memory 3x2 Ocz Blades 7.7.7.21
Video Card(s) 2x Sapphire 5870 Xfire @1000/1300 | PhysX 8800GTS
Storage 1TB Samsung F3 32 + 1TB Samsung F1 32 + 3x Misc HDD`s
Display(s) 24" Nec Multisync 24WMGX3 LCD
Case Coolmaster Staker Monster Case Custom
Audio Device(s) XFI Azuntech Prelude 7.1 HD
Power Supply PC Power & Cooling 910w Monster Single Rail 75a Killer
Software Windows 7 Ultimate Edition x64
Benchmark Scores Vantage, 31k With PhysX
Ahh so not related to ATI cards then at all ;) k
 
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