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Help with memory timing

Last response: in Memory
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February 23, 2010 2:57:43 AM

Okay..here is my problem. I have two sticks of DDR2 800 mhz (one with 6-6-6-18 timing, another with 5-5-5-15) rams with different timings. now im having some stability problems.



When running in dual channel mode, my mobo sets them automatically to-



The separate timings of my rams are-

ram-1 with 6-6-6-18, 800mhz



ram-2 with 5-5-5-15, 800mhz




please note that its causing some stability problem, and also has set my bus freq to 667mhz.
now what my common sense tells me is to run it in 6-6-6-18 in the standard timing section, and set 3-3-6-52-3-5 in the advanced timing, and set the mem freq to 800mhz manually(by changing the mem freq multiplier) in order to get better stability. and also what should i do with the last thing- "static tREAD phase adjust" i cant set it to zero, lowest i can get to is 1 while running in dual channel.

What do u think?

More about : memory timing

a b } Memory
February 23, 2010 1:43:49 PM

What voltage is each stick meant to run at? You will have to run the RAM at the lowest common denominator. That means you'll have to run them at CAS 6 timings and the highest voltage of the two sticks. It would help if you post the EXACT RAM so we can look up the specs.
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a b } Memory
February 26, 2010 7:04:13 AM

shohag2018 said:
well, voltage for both the rams are same- 1.2v.

That can't be right. Standard DDR2 voltage is 1.8 volts.

From the webstite:
Specification
• 667/800/1066 MHz
• 5-5-5-15 timings
• 1GB /2GB/4GB Modules
• Unbuffered
• Lifetime Warranty
1.8 Volts
• 240 Pin DIMM
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March 5, 2010 2:09:30 AM

Sorry my bad...yes its 1.8v. And i think the problem is solved..My system is stable now by the grace of Allah. Apparently it was a problem with my windows 7 x64. Thanks a lot.
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