Memory running 30mhz slower than stated speeds

adamb10

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Aug 6, 2006
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First let me tell you some specs...

ASUS M2N32-SLI Deluxe
Athlon 64 X2 5200
Radeon X1900XT
Patriot DDR2 PC2-6400 1GB Memory

Specific Ram Specs:

4-4-4-12 timings
Frequency: 373MHZ

Isnt the ram supposed to run at 400mhz?
 

bigsby

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With the 5200 and the 5000 (and 4600 too I think), the cpu/ram multiplier is of, so they can't put it at 400MHz, so it runs slower. A bit of overclocking can fix that :D .

There was an article 4 to 6 months back that was on AM2, and it talked about the strange ram/cpu multiplier, but basically it takes the cpu clock speed and divides it by a number, but the multiplier cannot do half steps (like 7.5 or 5.5), so certain processors have a reduced ram clock speed. Try looking for the article, I cant right now, next class is almost starting.
 

adamb10

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How much overclocking would require for the ram to run at 400mhz? I'm not a big fan of OC's for the fear of damaging components.
 

masteryoda34

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I have a 5200 also and had the same problem. The way it works is that it takes your CPU clock speed and divides it by 7. eg. 2600/7=371MHz. I just overclocked mine to 2.8 which gives you the full 400MHz. 2800/7=400. I didnt even need a voltage bump to reach 2.8 and I bet you will have no problem reaching it either. You will need a FSB reference clock of 216 i think to get it to 2.8 if you use the stock multiplier.
 

adamb10

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I just checked the Jumperfree Config and theres options for frequency, multiplier, voltage, etc

What do I set for 2.8GHZ?
 

sailer

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I just checked the Jumperfree Config and theres options for frequency, multiplier, voltage, etc

What do I set for 2.8GHZ?

Go to the line that says "AI Overclocking" and set it to "Manual". Then go to the line that says "CPU Frequency" and change it to 216. That should do the trick.
 

KTev

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You won't be able too up the multiplier. Up the frequency a little at a time untill you get to your new clock rate (~215-216). You shouldn't need to up the voltage for such a small overclock, but if you want you can up it a little.