Hey guys, I'm having a lot of trouble with this card:
Got a new 7950 from Gigabyte, 2 issues. In short, OC Guru II doesnt work and no voltage control on a 6+6 model.
1. I cannot get OC Guru II to work for the life of me. I'm aware there are other utilities, but this shouldn't be like this, I want to fix it. Plain and simple. I've tried wiping all AMD/ATI registries, files, drivers and SDKs and then reinstalling the latest ones, I've tried different PCI-E slots. I mean yea that's really it, I'm not sure what else to do. I get the error message:
"Graphics Card Smart Tuner. has stopped working"
Warning: Spoiler! (Click to hide)
Additional Information 3: 640a
Additional Information 4: 640ab510ff67f8ae23c72bfee10d93b7
Read our privacy statement online:
If the online privacy statement is not available, please read our privacy statement offline:
I also sometimes get a prompt saying "Please confirm this VGA card!"
when I try to start OC Guru 2.
2. My Gigabyte 7950 is core voltage locked. However, it's got 6+6 power inputs, not VRM heatsinks, and memory voltage is unlocked, which is quite odd. I can see my VRM temps (all 4). When I try to apply changes in, say, Modded Trixx, the voltage will apply, but programs like hwinfo show me that the voltage hasn't changed at all (but for mem it will, and for example dropping core all the way down to like 0.8v on max overclock is all the same, but doing same with mem voltage and unstable as it should be).
Do I have a new, 3rd version of gigabyte, since the new voltage locked gigabyte 7950s had 8+6 power inputs with VRM heatsinks, or do I simply have the old version fitted with a different BIOS or firmware? If that's the case, can I change it?
3. How do I tell what BIOS my card has? All it says is:
015.025.000.007.000000 (113-xxx-xxx) in GPU-z and hwinfo.
Not stuff like FX0 and FZ7 and that I see all the BIOS are called in discussions and on the official page. I tried the tool recommended last page about editing 7950 bios, and i used atiwinflash. it let me change the limit on vram clock, but not core clock or core voltage. my bios reads the same, except when i try to flash that same altered bios, it says its already flashed.
ps. recommending 1.5v on a 7950 is really irresponsible (says the guy who does 1.5v+ on haswell and ivy, btw). 7950s max is usually ~1.3v, and any card with the stock aftermarket heatsink will hit 90C+ core and 120c+ VRM on 1.25v+ at stock clocks in a proper stress test, ie occt error test, furmark. I wouldnt even go over 1.3v on water.Edited by Belial - 11/9/13 at 8:38pm