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Did I break my 7950?

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  • Overclocking
Last response: in Overclocking
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August 12, 2014 5:17:47 PM

So, today i tried overclocking my GPU, which is a AMD Sapphire 7950 OC w/ Boost, Model # 100352 - 3L.

Now when i was testing my GPU, i used MSI Afterburner for the overclock, and Heaven Benchmark 4.0 to do benchmarking.

Now, I got up to 1230MHz on stock voltage when i started to see random geometric shapes on Heaven. I then found out you could fix this issue by raising the Core Voltage. Now i had an issue doing this as MSI Afterburner wouldnt let me change it. No matter what i did.

I made sure "Unlock voltage control" was checked.

I went to the .cfg file did the "I confirm that overclocking my card will not be support etc etc etc

I also went to regedit and changed "Enable UPLS" to "0".

But couldn't change the voltage. I then downloaded Sapphire Trixx and found out that VDDC is apparently the same as Core voltage.

*Note* - I also downloaded GPU Tools and that program said i did not have voltage control capabilities, i did my research and this card can infact change its voltage, idk why it said that.

Now around this part get a little fuzzy coz i've been at this for literally 6 hours now.

SO i started to play around with the voltages and clocks. There was even one time when i ran the benchmark at 1240MHz Core Clock and 1300 VDDC (1.3V i believe) and it ran, GPU temps got to 71 degress though and i one ran it once. I then came to this problem, every setting even stock clocks (925 mhz) i would see the geometric patterns from when i had the clock set at 1230. I managed to fix this by restarting the computer.

So now theres no more shapes but i noticed performance is noticeable slower and choppy, to where areas where it used to be 60 fps is now 25 or so.

And ive tried to play games like Hitman: Absolution, in which it looks like a very laggy COD4 server (or atleast how it looked on consoles) where if you were to take 3 steps, you would go 500. It was almost like cheating coz the AI couldnt shoot me.

And in a racing game like Assetto Corsa, the ground would vibrate/flash and when you drive its like it 30 fps but in slow motion.

So guys seriously, did i just damage my card or is this a driver issue? I did try to run MSI and Trixx Together coz i wanted OSD of FPS and such. I also did a lot of system editing so ill just add he links of the guides i used.

So, is my card fried?

http://lifehacker.com/how-to-overclock-your-video-card-...

http://forums.guru3d.com/showthread.php?t=338906

http://www.overclock.net/a/getting-started-with-radeon-...

System:
Processor: AMD FX8320 Black Edition (Stock clocks)
Motherboard: ASUS M5A99FX PRO R2.0
RAM: G.Skill Ripjaws Series 8GB (2 x 4GB) DDR3-1600 Memory
PSU: Corsair TX750
GPU: Sahppire 7950 OC w/ Boost 3GB

More about : break 7950

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a b K Overclocking
August 12, 2014 5:40:51 PM

uninstall the driver
uninstall the OC software


reboot
reinstall the driver

did that help? If anything will thats your best shot IMO
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a b K Overclocking
August 12, 2014 5:48:57 PM

It`s not just the Gpu you can damage see artifacts in games, can be a case the you took the memory of the card well over its clock speed and how much heat they created.

Your card should have temp readouts for the core and on some Vrm part of the board that gives out the changes in power.
If the Vrm are also heated way beyond there operating temps, then they can also become damaged.
That results in a low clock speed after they are damaged. because what your doing is increasing the amount of power for them to regulate.

The card has different power states, and in windows desktop it will be lower than required when running a game.
But if the vrm become damaged then it can not meet the required voltage the Gpu and memory chips need to run at a higher frequency and power consumption.
So the clocks stay low.
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August 12, 2014 5:49:06 PM

Outlander_04 said:
uninstall the driver
uninstall the OC software


reboot
reinstall the driver

did that help? If anything will thats your best shot IMO
Also, make sure you're disconnected from the internet before you restart; I've had a hard time with Windows installing it's own crap when it detects that there is no current display driver, and then have conflicts between the windows driver and the official driver.
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a b K Overclocking
August 12, 2014 10:18:21 PM

Spaztic One said:
Outlander_04 said:
uninstall the driver
uninstall the OC software


reboot
reinstall the driver

did that help? If anything will thats your best shot IMO
Also, make sure you're disconnected from the internet before you restart; I've had a hard time with Windows installing it's own crap when it detects that there is no current display driver, and then have conflicts between the windows driver and the official driver.


Yes thats a good point . Usually you would get the new hardware wizard and just say NO , but it is safer to be offline when doing this kind of change
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August 13, 2014 7:10:30 PM

Hey guys i manged to fix it by installing Catalyst 14.7 (beta). idk what happened. Also something weird happened. When i ran Heaven again, the highest clock was only 850 mhz. by default it is 925 mhz. And i even checked GPU-Z and said that my clock was set to 925...


Its fine now though, just thought it was werid.
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August 13, 2014 8:03:48 PM

Outlander_04 said:
Spaztic One said:
Outlander_04 said:
uninstall the driver
uninstall the OC software


reboot
reinstall the driver

did that help? If anything will thats your best shot IMO
Also, make sure you're disconnected from the internet before you restart; I've had a hard time with Windows installing it's own crap when it detects that there is no current display driver, and then have conflicts between the windows driver and the official driver.


Yes thats a good point . Usually you would get the new hardware wizard and just say NO , but it is safer to be offline when doing this kind of change


Maybe under older Windows installations. I've got 8.1 (meh) and it automatically installs basic drivers without prompting, even on a basic user (non-admin) account.
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