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Prime95 fails with 2 stick, but runs with 1?

post #1 of 6
Thread Starter 
As the title says, If I run prime95 with 1 stick it runs fine, but with 2 it fails. Is my RAM faulty??

Here are the specs, 1.5v 9-9-9-24 @1333.

Thanks!
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post #2 of 6
Could be, first I'd make sure the BIOS has your DRAM timings / voltages set correctly. Go into the BIOS and double check smile.gif
post #3 of 6
See if you can pass memtest86+ with both sticks installed. If it fails, then you can RMA the kit or increase voltage to see if it possibly remedies the problem. If you can pass memtest86+ then the memory itself is fine. At this point, increase VCCIO voltage a little bit, and if this doesn't fix it then CPU vcore.
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post #4 of 6
Thread Starter 
Quote:
Originally Posted by E-Peen View Post

Could be, first I'd make sure the BIOS has your DRAM timings / voltages set correctly. Go into the BIOS and double check smile.gif

I did already check that & its also the same in CPU-Z
Quote:
Originally Posted by Dopamin3 View Post

See if you can pass memtest86+ with both sticks installed. If it fails, then you can RMA the kit or increase voltage to see if it possibly remedies the problem. If you can pass memtest86+ then the memory itself is fine. At this point, increase VCCIO voltage a little bit, and if this doesn't fix it then CPU vcore.

This kit is supposed to be ran @ 7-7-7-20 1.85v, but SB doesnt do well with anything above 1.65v so I left them at stock. I'll try to increase the Ram voltage to 1.6 & see if that helps.

Thanks guys +rep!
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post #5 of 6
Are you running Prime95 small, large, blend?

As has been stated, I'd run memtest with both sticks installed, let it run for atleast 3-5 passes, give it a good run for the money. If any faults, run each one individually and determine which has the errors. I had this happen on a i7 920 build I did for a buddy, and it turned out to be a bad memory controller on the processor itself, believe it or not.
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post #6 of 6
Thread Starter 
Quote:
Originally Posted by DaClownie View Post

Are you running Prime95 small, large, blend?
As has been stated, I'd run memtest with both sticks installed, let it run for atleast 3-5 passes, give it a good run for the money. If any faults, run each one individually and determine which has the errors. I had this happen on a i7 920 build I did for a buddy, and it turned out to be a bad memory controller on the processor itself, believe it or not.

I'm running Blend.
I bumped the Ram voltage to 1.6v & i'll try again. If this fails i'll run memtest overnight,

EDIT: So far so good. It didn't crash when I started Prime. I think it just needed a little bit more voltage...
More voltage fixes everything! tongue.gif
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Koolance CPU-380I BitsPower Fittings PrimoChill Advanced LRT Koolance R9 290 Waterblock 
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Koolance R9 290 Waterblock XSPC Dual 5.25'' Bay Laing D5 Lamptron FC5-V2 AlphaCool NexXxos ST30 240mm 
CoolingCoolingCoolingCooling
AlphaCool NexXxos ST30 120mm AlphaCool NexXxos XT45 180mm x3 NoiseBlocker E-Loop B12-3 Silverstone Air Penetrator AP181 
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