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Ram speed and my cpu

post #1 of 7
Thread Starter 
So I've been doing some overclocking with my ram and I noticed somthing. I leave my computer at stock speeds I can run my ram at its stock speed of 1600mhz. but If I raise my bus speed and over clock my cpu and NB I cant even get my ram to run at its stock speed of 1600, by lowering its multiplier, why is this happening?

for example I raised my bus speed to 250 which raised my NB frequency to 2500 I left my HT link speed as close to 2000 as I could, and lowered my multiplier for my cpu to 15 which ran my cpu at 3.7Ghz. and It ran perfectly, with the ram underclocked to 1333ish.

I tried uping the multiplier one step up for the ram, which is just a little over 1600 and it wont even post, no matter what I do.

This is happening on my sig rig, using This ram
 
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post #2 of 7
try bumping the voltage on the ram a notch... I belive that is the step needed... but I could very well be wrong
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post #3 of 7
Thread Starter 
i tried it at 1.55 at no avail
 
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post #4 of 7
seems to be, I think you need to play with voltages... check for max safe voltage on ram and go from there...
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post #5 of 7
loosen the timings maybe ?????????
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post #6 of 7
More CPU/NBv(1.35-1.4v) and RAM voltage-like 1.65-1.7v.Could be a little more or less,those are the common ranges.CPU/NB is fine with good temps up to 1.5v-RAM on AMD cpu's up to 1.8v generally.

^ or yes you can maybe loosen timings too,but that kind of negates the increase in speed.
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post #7 of 7
Quote:
Originally Posted by Halostryker View Post

i tried it at 1.55 at no avail

I had this problem before - check your motherboard manual. My ram is rated to run at 1.5v but according to Asus the voltage required with this board is 1.65v.

EDIT.. LOL I just noticed we have the same board and same brand of ram. That's your problem. This is the same chart that came with the manual..

http://www.asus.com/Motherboards/AMD_AM3Plus/M5A97_EVO/#MSL
Edited by NotUrAverageJoe - 1/31/12 at 5:07pm
    
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