Mine is prime stable at 3.5Ghz@1.24v. Prolly gonna be my daily use settings.
I'll try to hit 3.6 or 3.7 soon though =p

You can read the settings from the Tpower2 app in the screenshot =p
Other settings:

GTL1: 0.63
GTL2: 0.67
MCH GTL: 0.64
CPU PLL: 1.6

No prob =)
Eh P5Q got no GTL ref settings? That's terrible. Lucky I didn't buy one..was thinking of either my I45 or a P5Q Pro/Deluxe..

Your chip's pretty good though - 3.6Ghz without meddling with the GTL Refs.

Ohh yup the other day when I went down to robyn they also had no stock of the I45. I was lucky bought it from another forumer heh.

I'm old school, so I normally test stability with Prime95. Will give IBT a try later kua. Surprising that pass will BSOD - i thought fail will BSOD =p

Aha priming with 3.6Ghz now. 3dmark in a day or so once I get the other settings sorted out - I reckon I can lower Vdimm and maybe Vfsb/Vnb a bit.
Going out soon too =p

Here's a screenie of 480FSB 3.6Ghz tho!

Oh yeah I did haha. I'm using a 110CFM brandless fan from robyn. Shouldn't be that much diff over the stock 90CFM sunbeam fan though..

Load is about 60-65C whereas idle about 45-50C. This is without EIST or Speedstep enabled.
90CFM to 110CFM yah i know, 20% diff, but not sure how much more effective it is lor =p

Your mobo's an X48-DQ6 though. Can't be that's the bottleneck. Maybe I was just lucky la..seems like my proc's exceptional for some reason.
I certainly never expected a 12hr prime stable proc at 3.5Ghz 1.24v..

Yupz I agree 100% there. Both vtt and vcore..

Lol priceless? Very hot issit? Crazy that you need so much vcore to get to 470 wei, probably you can tweak Vtt or GTL refs..

Haha 54-58C idle! Sick =p
Hmm I had an Abit IP35-E that had GTL refs. Only 1 tho, not 2 like the IP35 Pro or most P45s. Thought the Gigabyte equivalent would have GTL Refs too.

Xpresside - Intel Vcore specs indicate max safe vcore for Yorkfield to be 1.3625:
http://www.intel.com/design/core2quad/documentation.htm

Vtt = Vfsb. Vmch is your northbridge voltage. Typically at higher FSB levels you need to up the voltages accordingly.

Vtt is very likely called Vfsb in your BIOS. GTL is a ratio of that figure.

OC 4/3 - I can see 3.75Ghz 500FSB on my proc! It's not 100% stable though. I can run superpi 1M in 14secs but didn't get a screenshot cos it BSODed when I opened Paint hahaha.

Also I'm not happy at all at that speed cos it requires 1.41v..

This post has been edited by zer0hour: Sep 1 2008, 03:39 PM

Yeah, Vtt is often called Vfsb. As for GTLrefs, yeah quads are pretty sensitive to those settings - it's often the key to higher clockspeed. I'd tinker around with the different settings (start at 0.63) and see which works best for you.

Kinda high for your 1.175v and 3Ghz settings IMO. What cooler are you using?

His voltage and clockspeed are so low though. Should be a bit lower I reckon.
My idles are 43-47C, 1.288V, 3.6Ghz, Sunbeam CCF..

Oh your load temps are fine. I'm not too familiar with the freezer 7, but those are good temps..I'd just live with the slightly higher than normal idle temps la =p

Mm that makes sense..since your proc is idling anyway. I just turned on EIST and C1E, and my idle temps drop by like 1C only. Lol.

frix - my VID is 1.2125.

Haha yeah, a lot of ppl impressed by Xeon name. My cousin came to my place, I asked him which he think is faster - my QX9650 or the X3320. He thought X3320 =p

Cyclone - X3320 is ~5-10% faster than Q6600 at the same clock rate, due to Yorkfield core optimizations. That translates to 200-360Mhz (around there la) at our current overclocking So there's no point going back to Q6600 when X3320s can reach 3.5-3.6Ghz lor..

Ok after many days and tests: my 24/7 settings:
3.5Ghz@1.256Vcore.

Passes IBT 20 passes, Prime >12 hrs. 100% load temp under Prime 61C, under IBT 72C (spike only)




3.6Ghz is only stable at 1.32V, which I'm not gonna put my processor through 24/7 la =p
3.75Ghz (500Mhz FSB!) is stable at 1.4V, which obviously cannot lor long term..

This post has been edited by zer0hour: Sep 4 2008, 07:34 PM

Haha cannot get la. I put WTT my Tpower with another P45 (my CCF is blocking my CM690's top fan socket cos of the Tpower's CPU socket arrangement) so many ppl pm me offering to buy for RM430 to RM440.
But now that I've done so much testing I'm gonna live with -1 fan la =p

death - I've replied your PMs d. I disabled all the CPU features while I was doing the stress testing, but now they're all back on, including C1E and EIST.