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I have a problem With 955 and Starcraft

post #1 of 40
Thread Starter 
I had my 955 at 4.2 @ 1.4 volts with a 212+ and i got it stable ~51c on full load

now my problem is everytime i load a game of starcraft 2 my graphics drivers crash and i need to reboot my comp before i can open any other application

the lower i clock the less i crash from 4ghz and up (only tested 4and up)

i tried 4.0 ghz but now im just sitting on 3.6 just because i didnt want to try everything in between.

i have

890 gpa u3dh
212+
hyperx 2x2 cl9 @1600 (tried playing with 2 sticks and wasnt the problem)
sector 5 2x2 cl9 @1600 (did mem test got 6 hours with no errors)
2xgtx 460's

my first post here so i dont know what else to post.
Edited by exzited - 6/4/11 at 11:11pm
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post #2 of 40
did you use prime 95 to test the stabillity, linx linepack, heavy load , occt or some other stabillity testing program to determine it's stabillity?........i ask because my 955 i can get a verified 4.2 on cpu z idle no load 4.1 for surfing the web and 4.0 rock stable playing bfbc2 medal of honor and any thing else i use this for on air,

all chips are different, try running 3.8 to 4.0 see what ya get .
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post #3 of 40
I think your CPU is crashing, I had this problem before when I was running at 4ghz. My Starcraft consistently crashed, so I ran Prime and I couldn't even last for a minute ...
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post #4 of 40
Quote:
Originally Posted by exzited View Post
I had my 955 at 4.2 @ 1.4 volts with a 212+ and i got it stable ~51c on full load
how did you test for stability? If you ran prime95, what test?
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post #5 of 40
You need to run the Small FFT's test. It is the most stressful test for the CPU and shows you the highest CPU temperatures due to its high L2 cache use.
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post #6 of 40
Thread Starter 
i had prime running for 6ish hours @ 4.0 whatever the ok button does. test all i think

and i dont think or at least hope not that its failing because ive only had my processor for 3ish days (switched from a x4 640)

not getting bsod
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post #7 of 40
Go check the 955 overclock list to get an idea of speed and the voltages needed.

1.4v's for 4.0 ghz sounds a little iffy (unless you got a golden chip).

Also for prime95 run it for 24 hrs in blend for full stability.

First 12 hrs are small FTT tests which stress the CPU more and large FTT tests larger which stress the NB/IMC more.

You really should overclock step by step to be on the safe side. Not all 955 BE's can hit 4.0 ghz on air.

What did you use to test for stability?

Edit: Here's the list.

http://www.overclock.net/amd-cpus/49...x4-9x5-oc.html
Edited by evilferret - 6/5/11 at 8:32am
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post #8 of 40
Thread Starter 
Quote:
Originally Posted by evilferret View Post
Go check the 955 overclock list to get an idea of speed and the voltages needed.

1.4v's for 4.0 ghz sounds a little iffy (unless you got a golden chip).

Also for prime95 run it for 24 hrs in blend for full stability.

First 12 hrs are small FTT tests which stress the CPU more and large FTT tests larger which stress the NB/IMC more.

You really should overclock step by step to be on the safe side. Not all 955 BE's can hit 4.0 ghz on air.

What did you use to test for stability?

Edit: Here's the list.

http://www.overclock.net/amd-cpus/49...x4-9x5-oc.html
all i did was prime for 6hours and ran 3dmark06 once

i guess ill just leave it on for the 24 hours =p

i had 4.2 running @ 1.4 for 3 hours before i stopped it.
Edited by exzited - 6/5/11 at 3:25pm
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post #9 of 40
I changed my dram timing to 800 mhz and when I started sc2, I crashed. Try setting your dram lower.
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post #10 of 40
Thread Starter 
bsod in 5 mins doing the small fft

so i guess i wasnt stable after all

going to lower reference clock to get my next stable oc =p down to 4009mhz T 1.35 volts
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