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Can't get past 225FSB with P5WD2-E Prem. and 820

post #1 of 29
Thread Starter 
As you can see my specs below I've tried everything under the sun(or at least that I know of) to get this to overclock. No matter if I up the vcore, Pci-e freq, mem voltage, I can't get it to boot at all past 225FSB.
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post #2 of 29
First of all down up the PCI-E frequency, you could damage your videocard, leave it at 100. What speed is your ram running at? How high on vcore have you went? What are your temperatures? Have you tried upping the chipset voltage?
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post #3 of 29
i've used 117mhz pcie freq for months,down to 110 nowdays i dont think it damages anything havent seen any artifact or so in 6 months,the fact is i cant get past 223fsb if i dont use a pic-e freq over 110.. so i'd say play more with the pcie freq (but i'm not responsible if anything happens )
post #4 of 29
Quote:
Originally Posted by Kindredice
i've used 117mhz pcie freq for months,down to 110 nowdays i dont think it damages anything havent seen any artifact or so in 6 months,the fact is i cant get past 223fsb if i dont use a pic-e freq over 110.. so i'd say play more with the pcie freq (but i'm not responsible if anything happens )
LMAO yeah right man I dont believe that for a second. EXTREME bechmarkers will run like 105 for better performance but its very hard on the card.
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post #5 of 29
well i dont need to make you believe,if you have experienced different setups you'd see some like mine needs more pcie freq to increase the fsb,go check my superpi,3dmark scores,all those 4125mhz benchmarks are at 117 pcie freq. I was using 3.8Ghz@113 now i'm at 3.6ghz @ 110pcie i havent seen any disadvantage,performance gap or so.
post #6 of 29
Are you 100% sure you're adjusting the PCI-E frequency like you think?
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post #7 of 29
sorry for the delay,restarted and took some pics from the bios, i'm running on 117 now which i need for 3.92+ghz,i just realized cpuz doesnt show pcie freq,is there any software that does?

here you go,i stopped at 3.91 takes some time to tweak into 4.1

post #8 of 29
I've been running mine at 115 for over 6 months now with no issues.

Back on topic though, how far did your raise the PCI-E bus with no boot?
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post #9 of 29
Thread Starter 
For the vcore I haven't gone past 1.5v and it's currently at 1.46v. And on the Pci-e I haven't gone above 105 since most places I've read and oc's I've done myself I've never needed to go higher then that. Here's some pics of cpu-z to answer all the other questions.
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post #10 of 29
Hm this is kinda strange, you should at least be able to get to 3.73(266X14) with 1.40vcore, and thats at the least. You shouldnt have to change anything but the FSB and maybe a little voltage. Are you trying to run your ram at 2:1 ratio or are you running it 1:1?

Hmm now that I see your running 2:1 you might want to drop the ram down a little. Is there any reason why you are running the ram twice as fast as the CPU? I mean there realy isnt an advantage to running faster, if you drop your ram down to a 1:1 ratio and tighten the timings you would have alot better resualts on the overclock and yould also have better performance with a lower latency. That is your problem you are pushing the ram not the CPU.
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