OC E8400 on Asus P5Q-E

toxic · 31 Jul 2008 at 09:24

Anyone overclocking an E8400 on an Asus P5Q-E motherboard. I'd be happy to hear what results you have obtained with FSB, CPU voltage etc. details.

mattyj1085 · 31 Jul 2008 at 12:19

Also interested in this for a rig im going to be building for a mate

toxic · 31 Jul 2008 at 18:07

surely someone.......................free bump

gurusan · 31 Jul 2008 at 18:11

just managed this with my new Xeon E3110 (e8400) and P5Q Deluxe

Cob · 31 Jul 2008 at 18:14

No real reason why 550mhz+ shouldn't be possible if your memory can keep up.

Darg · 31 Jul 2008 at 18:22

I'm having a bit of trouble understanding how the 'bootstrap' works on this motherboard. I know it has something to do with the memory ratio but what is 1:1? If I set my FSB to 400, and bootstrap to 400 it runs my memory at 800 so I assume the 400mhz option is the 1:1 ratio? Am I correct?

Also what is the DRAM PLL(i think) voltage? I set the DRAM voltage to 2.3 as I have 4GB of Geil RAM and it's hungry stuff. What's the second voltage option though?

gurusan · 31 Jul 2008 at 18:40

different bootstraps will run different timings on the northbridge and affect performance/stability, and the 400mhz strap will not necessarily run 1:1 memory ratio...each strap has its own ratios and you will see what they are when you select each strap.

And I don't think there is a DRAM PLL voltage? At least not on my P5Q-D. Also these boards overvolt the ram by about .08v so you are putting nearly 2.4v through your modules there...

Darg · 31 Jul 2008 at 18:49

Okay thanks gurusan, I'll read up on the bootstraps some more, what do you recommend as the best option?

I'll have to look over the voltage options again and I'll keep it set to 2.2V then

gurusan · 31 Jul 2008 at 18:51

Darg said:
Okay thanks gurusan, I'll read up on the bootstraps some more, what do you recommend as the best option?

Whatever works really. I just pick whatever allows me to run my preferred memory speed

Darg · 31 Jul 2008 at 18:56

gurusan said:
Whatever works really. I just pick whatever allows me to run my preferred memory speed

You're fast this evening! Thanks for the help, off to the BIOS as soon as SP3 finishes loading.

Darg · 31 Jul 2008 at 19:45

Sorry it was actually CPU PLL voltage. Any ideas on that?

gurusan · 31 Jul 2008 at 19:56

yeah that helps the cpu reach higher fsb. I have mine at 1.52...highest I would put it for 24/7 is around 1.54-1.56 and you shouldn't need to go higher then that anyway really.

Frum · 18 Aug 2010 at 09:52

gurusan said:
just managed this with my new Xeon E3110 (e8400) and P5Q Deluxe

Thankyou gurusan your post just answered my question "Will the Xeon E3110 work with the P5Q deluxe?" CPU not supported according to ASUS

Cheers dude