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CPU and Memory ratio

post #1 of 10
Thread Starter 
Ok I'll start with explaining from the beginning. I have Dual Channel (2X512MB) Ultra Overclocking Ram on an Abit Av8 Mobo with an Athlon 64 3200+. I can overclock to 2.6Ghz easily when I have the Ram running in single channel. However, when I put it in Dual Channel, I can only get to about 2.25Ghz. I was stumped for a while about this problem, then finally I realized what it was. When I overclocked in single channel, it would put my memory speed automatically to CPU/12. When I'm in dual channel however, it stays at CPU/10. I found this out by using CPU-Z. I am wondering how I can change this ratio when overclocking in dual channel. I use the Guru clock overclocking software. Thanks.
post #2 of 10
I'm not too familiar w/the software overclocking stuff, but it seems that it sets it automatically, try just upping it straight to 2.6 on dual channel?-- can you even do that? =\\

Can't you OC in the bios??
post #3 of 10
Thread Starter 
I already have had the RAM voltage set max, and I like using the Guru clock because with a push of a couple buttons I can change my overclocking speeds, or just have it set normal.
post #4 of 10
Have you tried setting your RAM to 133 or 166 instead of the default 200MHz.
    
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post #5 of 10
Thread Starter 
No I haven't but that's an idea I can try. Thanks.
post #6 of 10
The uguru utility will not provide you with as stable (or at all stable) of a overclock go to the bios to do it. You will get much better results.

To change the ratio in abit board you need to go to the "Advanced Chipset Features" then the "DRAM Configuration". The ratios are as follows DDR200 is 1:2; DDR266 is 2:3; DDR333 is 5:6; DDR400 is 1:1; DDR433 is 7:6; DDR466 is 4:3; and DDR500 is 5:4.

Hope that helps.
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post #7 of 10
if you want to get to 2.6 running dual channel ditch the software and oc w/ bios
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post #8 of 10
Thread Starter 
Thanks for your suggestions. I have it running really well now in dual channel at 2.6Ghz, and I can go higher than that too. I just changed my memory speed to DDR333 in bios. If I had higher speed memory I'd be able to get more memory speed out of overclocks, but oh well, that will be another upgrade for down the road. haha. Thanks!
post #9 of 10
Its good to hear that the advice helped
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post #10 of 10
Quote:
Originally Posted by Matt012
Thanks for your suggestions. I have it running really well now in dual channel at 2.6Ghz, and I can go higher than that too. I just changed my memory speed to DDR333 in bios. If I had higher speed memory I'd be able to get more memory speed out of overclocks, but oh well, that will be another upgrade for down the road. haha. Thanks!
Glad we could help..
Have you upped the vdimm too?
It should be fine with 2.8v.
    
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