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How to stability test an AMD 7950?

Soldato
Joined
7 Jan 2007
Posts
10,607
Location
Sussex, UK
After my rage thread at my 7950, I have calmed down. I cannot afford to buy a new card so am stuck with this for at least 6 months.

I will try not to get annoyed and post only messages of peace and tranquility about this fabulous AMD product, doh...

Anyway, lets start at the beginning. I have a 24hour stable overclock on my i5 2500k running at 4.7Ghz. It is prime 95 stable during summer temperatures. My previous 5870 didn't cause any issues with flickering.

I purchased a 7950 in March and it flickered a lot on Arma 2 and tomb Raider. After some new drivers, 13.4 seems stable or Tomb Raider was patched. Anyway I have completed Tomb Raider, so that game doesn't matter anymore.

What I need to stop is the white speccles on trees in Arma 2... DCS World runs perfectly fine.

I have tried overclocking it and it causes huge texture flickering, so I need to take a step back and confirm my card is stable on its default volt, core and mem settings.

What software tests this?

Then if it is stable, I use MSI Afterburner to overclock? What settings should an average clocking card be able to achieve for a MSI Twin Forzar 960Mhz edition?
 
The white speckles on trees in Arma 2 is not a gpu error, its down to the AA setting you using.
This is from a dev Dwarden
try disable ingame AA and use instead some PPAA e.g. SMAA or FXAA

So more read about it here
https://dev-heaven.net/issues/15668

Plus I wouldn't worry to much about Arma2 anyway as Arma3 is coming along and so is Dayz standalone.
 
I don't play Dayz and Arma 3 with decent content is many months away.

I will try disabling in game AA and using CCC AA.

Im still need to stability test the card before I start overclocking.
 
Run something like Heaven or Valley for a few passes and if it clears those without issue/corruption, then move onto gaming.
 
Run something like Heaven or Valley for a few passes and if it clears those without issue/corruption, then move onto gaming.

Whilst this is true, some games can still cause some artefacts and crashing. Valley is a good way to test stability and is 95% good at determining it but some games can show worms in the woodworks.
 
Whilst this is true, some games can still cause some artefacts and crashing. Valley is a good way to test stability and is 95% good at determining it but some games can show worms in the woodworks.

This is True
Battlefield 3 is a very good game at showing bad overclock.

My games for testing
BF3
Sleeping dogs
Alan Wake
Crysis 1
 
I used Crysis benchmarks for testing stability, its the game which requires the lowest overclock of mine to become stable. I have to drop 20mhz on the core below my top Heaven stable OC. I would still run heaven though as it starts showing artifacts when ya pushing ya vmem too high.
 
I've alwys found BF3 to be easy on overclocks, played for hours on my new card then played Bioshock 2, crashtastic.

Downclocked by 10mhz and then runs fine.
 
Farcry 3 for the core and Sleeping Dogs for the core/memory. Those two games really heat up tahiti cards if you use HDAO in farcry 3 and SSAA in sleeping dogs.
 
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