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New HD 7970's can NOT use older reference or ghz bioses

post #1 of 3
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Just found out some interesting stuff about newer revision cards.
Not sure about brand new Diamond 7970's (the only other ref card out), but current reference Visiontek HD 7970's can NOT use either the ghz edition bios flash upgrade (even though it says it flashes successfully) , or any of the older 7970 reference bioses (including the clock unlocked bios in the ghz edition flash thread). The card will flash, get into windows, driver install will detect the card, but after you are prompted to reboot, you will either get a Stop 0x7f, or 0x7e, in ati2mag.sys, or you will get to windows in 800x600, with the CCC saying no AMD card detected or the drivers are not installed properly.

The in progress 7970 bios editor DOES show the visiontek as a reference card and you can edit and reflash that bios with your Power control or Vid, etc.

Three things that are clearly different on these cards compared to the old ones: (besides both the below cards being rather low asic)..

1) GPU-Z may show a completely absurd Ram amount on the card when you try an "older" reference bios or a ghz edition bios (or the amd tahiti ghz flasher) when the drivers are not installed yet. It displays 3072 with the original bios.

2) +12v reading from the card is 12.09v, down from 12.25v on a much older sapphire reference card, which does take the ghz edition bios, or any other older reference bios you want to toss on it.

3) VRM temp monitoring does NOT work. VRM 1 and 2 temps are read as 25 or 24C.


I don't know if a new gpu-z can access this or if VRM monitoring was removed on these cards, but I noticed the EXACT SAME thing on a brand new ICeQ HIS 7970 ghz edition card. +12v was 12.09v (EXACT SAME), no VRM monitoring, and the ghz edition "older reference bios and the original Sapphire boises did NOT work. The card again would boot to windows, catalyst would install then either BSOD on reboot or say no AMD drivers or graphics card installed.

Clocking sucked horribly on the HIS ghz edition..***. 1125 core (Ram speed irrelevent) would color sparkle randomly on Valley Benchmark, with 1.256 vid!! Seemed ok at 1100. Card ran VERY hot (on the heatsink/outside although core was acceptable).
Visiontek non ghz ref card ran 1125 with 1175 mv in Valley, with 60% fan speed, quite nicely (15 min test). 1150 would lock the PC after awhile (did not try more volts, but GPUtool showed artifacts at 1150 (but not 1125) regardless of voltage settings in Trixx (card not locked btw)..


I am willing tol take a wild guess that the Visiontek card without the VRM monitoring in GPU-Z would probably accept and work with the current revision HIS 7970 ghz edition bios, and vice versa (also with no temp monitoring) but NOT older ones that DO monitor the vrm temps (unless gpu-z can acces them with a revision). Wild guess, though.
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SB Rig
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post #2 of 3
yeah, it happen to me but there was one bios that i try and it work. The problem is with that bios i didnt have voltage control and in MSI afterbuernr said that it was a MSI HD 7970 lightning version. Im with the stock vios and oc (1125 and 1575 with 1.210v) but i dont have readings on vram temps
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post #3 of 3
I'm on a stock HIS 7870 non Ghz edition card and the VRM monitoring is not available. I did try the Ghz bios going about and as you said didn't work
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compy jr
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xeon 3350 at 3.6ghz Asus P5k-dlx HIS 7970 @ 1150/1900 Lots of them.  
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