Safe to overclock DDR3 1333 9-9-9-24 to 1066 6-6-6-18 1.5V AMD?

Kilobyte Kid

Safe to overclock DDR3 1333 9-9-9-24 to 1066 6-6-6-18 1.5V AMD?

I've looked all over and haven't seen this, so I'm trying to find out if the memory modules can even handles this.

 

MB: Gigabyte GA-MA790XT-UD4P

CPU: AMD Phenom II X4 945

Ram: CT25664BA1339 DDR3 1333 9-9-9-24 (4 sticks)

 

The cpu does not support 4 sticks of 1333 (only will run 3 because of design flaw AND the ratio is 3:10). I DID find out it will run 4 sticks at 1066, and doing lots and lots of research, I found that 1066 6-6-6-18 would be better to get closer to the 1:1 FSBSmiley Very HappyIMM ratio as well. I've checked the MB to make sure it's ok, but I can't find if the ram can handle the higher timings and do it at 1.5V.

 

I would think, since I'm lowering the frequency of the ram I can increase the timing, but I can't find anything that will tell me other than trial and error.

 

Does anyone have suggestions, please?

 

1 Reply
Community Manager

Re: Safe to overclock DDR3 1333 9-9-9-24 to 1066 6-6-6-18 1.5V AMD?

Hello,

 

Unfortunately, trial and error is the best suggestion I could give.  The parts would not have any issues with the 1066MHz, but the timings is not something we have tested.  These parts are designed to be plug and play.  JEDEC standard for 1066 DDR3 memory have a CL of 7. 

 

Guru, Crucial Moderator, US
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