ASUS P5N-E SLI 650i Thread

[iamtheculprit]

ok so i was able to turn ai tuning to manual now where is the FSB?

[davidisflash]

hi iamtheculprit, whaddup

OK, so you see the screen with the following options: "AI Tuning", "System Clocks", "Voltage control", "FSB and memory config..." go to that last option. Set the first option to unlinked, then you can manually adjust FSB and MEM.

An update on my system: I just found a big air bubble in my H20 system. I had lowered the height of my reservoir relative to my case while fixing up the NB heatsink, and because of it, my idle temps for my CPU at 1500 FSB and ~ 1.5 V were in the low 40s. Seemed way to high for water cooling. Now this whole time, I've had my Koolance exos-2 fans set to speed "3" (it goes from 1-10), and I plan to keep it that quiet (or else why water cool). Even with that, my temps seemed to high. The hint I got was changing it to 10 during orthos stress test when my CPU was at 69C (!!!), and speeding up my water cooling fans didn't bring the temp down.

Now I have set it to 10 to cool off the water since it's been hot, entered windows at ~ 35C Time to see if perhaps that was my bottleneck.

In the meantime, any help is appreciated and welcome.

[davidisflash]

Ok, here's what I am at right now:

CPU Vcore = auto, +.100mv, Asus Probe shows Vcore going from 1.47-1.54, mainly staying closer to 1.54.
NB = 1.5xxx volts
Mem at manufacturer recommendations, voltage just a notch above 2.0V
Unlinked, 1533 FSB, 766 Mem (1:1)

When I entered Windows with fan turned up to max for watercooling, CPU cores in Core Temp show that they are idle at 36C. Looks good.

I am now reducing the fan speed to 3 and am starting Orthos stress test. CPU-Z, Core temp, Asus Probe, and speedfan all running in the background.

Forgot to mention: here's what I mean by unstable. For all previous tests, I could only boot into Windows if FSB < 1540. Also, for the times I could, Orthos would fail within 20 minutes. Asus would then wine at some point saying that my Vcore fluctuated by > 20 percent. I wasn't watching temps, I'd usually go in the other room, so perhaps it was temp-related.

[mchutch]

Where is your system specs. davidisflash? It would help me out to see em, I'm trying to break 3.0Ghz on this quadsky.

[Pulaski]

When adding a fan to the NB, which direction should the air flow? Should the fan be on top or should I place it on the side of the heatsink?

Thanks for any help

[iamtheculprit]

Originally Posted by davidisflash

hi iamtheculprit, whaddup

OK, so you see the screen with the following options: "AI Tuning", "System Clocks", "Voltage control", "FSB and memory config..." go to that last option. Set the first option to unlinked, then you can manually adjust FSB and MEM.

I honestly dont know how i missed that. ok the value in the qdr feild is 1226 (multiplier of 10). what should i set this to to achieve... oh, 3.3Ghz? i have seccessfully oc'd the cpu to 3.19Ghz with the ai overclock feature and it ran cool so i was lookin to push it higher (btw its running at 3.06Ghz right now)

[iamtheculprit]

wait i just noticed a pattern.. if my qdr is 1226 then that devided by four equals 306 which would work for my fsb, since its runnin at 3.06, right? so if i wanted to get say 3.3 then i would want my qdr to be 1320 because 1320/4=330 and a fsb of 330x a multiplier of 10=3.30 ghz right?

[iamtheculprit]

successful overclock of 3.3Ghz!!

qdr of 1320/4=330x10=3.3Ghz!

Thanks youre help has been invaluable!

what operating temps should i be looking at?

[pheoxs]

Originally Posted by iamtheculprit

successful overclock of 3.3Ghz!!

qdr of 1320/4=330x10=3.3Ghz!

Thanks youre help has been invaluable!

what operating temps should i be looking at?

yeah, pretty much yours would be QDR FSB x 2.5 = CPU speed, congrats on the O/C, I still can't get above 3.2 stable its orthos stable but crashes folding

[davidisflash]

This is from my first post on page 533, but here are my specs again:

Hello! Can someone please help me with my overclock? Here are my specs:

ASUS P5N-E-SLI, rev 801 of the BIOS
E6600 C2D proc
2x 1GB Crucial Ballistix Tracer kit, 4-4-4-12, 2.2V
2x WD Caviar 80GB hard drives: RAID 0
nvidia 7950 GTX GPU

By the way, if you look at my last post before this one, orthos failed in my last test. It had an error after 25 minutes.

FYI: my fan is blowing air into the northbridge and on top of it, not from the side.

Thanks for any help you may have.