Problems OCing 8800GTS

D

Duro

Limp Gawd
Joined
Jul 20, 2007
Messages
324
So I've attempted to overclock an EVGA 8800GTS 320MB in Vista x64 with RivaTuner and ATI Tool to less than no avail. Both programs read my core and memory speeds as an unalterable 0/0 and, I assume, attempt to set the clocks to 0/0 merely by opening the utility (which leads to the actual clocks being set at the minimum allowable - 198/396). The last time this happened I ultimately flashed and reset just about everything and I'm not really sure which of the things I did managed to reset the clocks to stock, I guess I'll just end up going through all that again.

Anyways, I'm wondering if others have encountered such a problem and know of any kind of solution.

EDIT: also, I don't have a floppy drive and that's the only means of flashing the gpu bios that I've found. If anyone happens to know where I could find an .iso for stock clocks I'd appreciate it.

EDIT2: uninstalling all nvidia display drivers restored everything to stock clocks, but that still leaves me unable to OC.
 
Duro said:
EDIT: also, I don't have a floppy drive and that's the only means of flashing the gpu bios that I've found. If anyone happens to know where I could find an .iso for stock clocks I'd appreciate it.

EDIT2: uninstalling all nvidia display drivers restored everything to stock clocks, but that still leaves me unable to OC.
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Thats not true. I dont use a floppy drive either. There is something out there called the ultimate boot CD. It let me boot to a dos environment and using a USB flash drive I flashed my GTS to 648 / 1000. However, I was running that OC in XP for awhile so I knew it was stable. I'm not sure I'd flash without knowing if the card was really stable. Also, the core has "steps" 621, 648, 675 so when you flash you will have to know how high yours can go. Some only will go 621. A select few will do 675, mine will not.

Anyways, it's possible to flash without a floppy. But I'd suggest switching to XP if you have to cause you will need to test that OC before you flash it.
 
ok, your problem is windows vista x64. You have to disable driver signing at startup. When your starting your computer after it posts just before windows loads press F8 to bring up your startup options like safemode and ect. Choose disable driver signing check or what ever it is and both rivatuner and atitool will work.

Make sure you use rivatuner 2.01 or newer as anything older does not work with vista at all.

Theres some way to disable this everytime your computer starts but Im not sure what it is so untill then you have to disable this driver check.

And please don't flash the bios of your card untill you have found a completly stable OC. Don't want to leave it useless lol.
 
Already tried that before, didn't change anything. However, after moving to the 162.22 drivers from 158.45 ATI Tool 0.27 works, but RivaTuner 2.02 still doesn't. Wierd.
 
that is very wierd, rivatuner is always ready to work for me, ati tool always tried to fight me lol. but ya, make sure driver checking is off, and install/run rivatuner in administrative mode, it should work. Thise older drivers you mentioned I also noticed didn't work with rivatuner or atitool but the new ones your using are the same as mine and they work for me.

Try re-installing rivatuner and see what happens, make sure its installed with driver checking off to.
 
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