rythmic

Hello , first of all sorry for my english , i hope you will understand my problem .

I have :
Mobo : Asus M4A79XTD EVO
CPU : Phenom II X4 955 BE
Memory : Kingston DDR3 4096MB (2 x 2048) 1600MHz CL8 XMP Tall HS HyperX ( KHX1600C8D3TK2/4GX )
Video : Sapphire ATI Radeon HD 4890
Chieftec Super 750w

And my problem : computer is freezing while i watching movies like 720p , after 25 -30 min , and in games after 5 min .

My problem however is I can't get my memory to its stock frequency of 1600mhz with 8-8-8-20 and , i tried to 1333 , at 9-9-9-24 at 1.5v , but is reacting the same .

With only one stick of memory it`s running smooth , no freeze , but with both sticks it freezes .

What voltage should i use for 1600 frequency , and maybe you can give me some settings for cpu , is not overclocked at all , HT .. i don't know ...something to make it stable . I have 0604 bios version . Thanks

Wildcard36qs

supposed to be 1.65v minnimum

rythmic

i have tried , but i can't set it to 1.65 it automaticaly goes to 1.66 , but is the same .

i tried also with 1.68 1.70( bluescreen after 20 min ) but ..nothing . From what i read to other threads i must change some settings to cpu ( HT .. , i don't know , i'm not to familiar with those type of settings , i don't know what they do ) to support 1600 frequency .

krnx714

Have you tried just using that 2nd stick of ram by itself? Try that and run Memtest for a couple of hours to see.

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Q9550 4.0 Validation

rythmic

i have already did that , with 1st stick of ram , 2nd stick of ram , and togheter . and the tests run just fine