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Does GPU-Z make bad dumps of VGA BIOSes?

R

ReadD8

Joined
Mar 12, 2013
Messages
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Location
Spain
System Specs
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
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):
hashesr.png
 

Attachments

Last edited:
thanks for the attachment, looks like you are right

do you have an instant messenger? my details are on the left of this post
 
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
    Test2.zip
    171.3 KB · Views: 206
  • hashes2.png
    hashes2.png
    21.4 KB · Views: 705
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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.
 
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
 
Ahh so not related to ATI cards then at all ;) k
 
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