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Old 04-29-2010, 10:01 AM
bdim bdim is offline
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Default Gigabyte GA-EP45-DS3 + Corsair Dominator 8500c5d problem

Hello to everybody...

I have a problem to my pc.

Today i got from corsair 2 pair of twin 2x2048 - 8500 c5d memories (in total 4x1gb)...

I have a motherboard gigabyte ga-ep45-ds3 ... my previous ram, were 4x1gb Kingstone kvr 667, and i had no trouble with them for long time.

I plug memories today at morning, and my system crashes. I looked for info to various forums, here also, and i found that i should lower the memory frequency from 1066 to 800.

Also i read that i should raise volt from 1.8 (default bios) to 2.1 ... done!

I run memtest v4. Before i make the changes above, there were errors. After changes, i left it around 10-15 min, and it was running ok ...

I still have problem... i managed to enter under safe mode to windows 7 once, but i cant enter to normal mode, it re boots all the time...

So i am asking:
1) Why should i lower frequency? As far as i understand my motherboard should work with higher frequencies...
2) What are the exact settings i should do to bios? Ok i know some stuff, but i am not an expert ...
3) Do i miss something???
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Old 04-29-2010, 10:23 AM
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http://forum.corsair.com/v3/showthread.php?t=71087 read the PDF.
Corsair memory is supported at full speed only when a single kit is used. ie: a 2x2g kit would have been correct. mixing kits that were never tested all together on a single board may have unpredictable results especially in a 4-up configuration.
its all covered in the PDF document.
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Thinking about combining 2 or more sets of ram?? even the same part# is not suggested, recommended or supported.

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Old 04-29-2010, 11:01 AM
bdim bdim is offline
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Thanks for info. I learned some new stuff (theoritical)...

But i still have the problem.

Setup now is:
dram v: 2.1
memory fr :800

Windows boots till welcome/user screen and then freezes....
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Old 04-29-2010, 07:47 PM
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Try testing each kit individually to see if one kit has an issue.
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Old 05-11-2010, 02:54 AM
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I've had the exact same problem. The problem isn't the memory but the motherboard. After flashing to newer BIOS version it worked fine for me. This could solve the problem. I have some friends that also has had problems with gigabyte/corsair combinations so it will not surely work and the only option for them was to change the motherboard or ram to another brand. Maybe worth a try though.
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