owners of q6600 @ 3.2+Ghz on air - What are your specs?

I'm curious as to what people have their q6600's at. A lot of people stop at 3Ghz but I want to know about those who've gone further, on air ONLY, and what your voltages are? Just copy/paste the setup below and put your specs in accordingly. For Speed, PLEASE put the total Ghz with fsb x multiplier: 3.2Ghz - 400x8, 3.2Ghz - 356x9, etc...

Motherboard: Asus P5B-Deluxe

Speed: 3.2Ghz (8x400)

CPU vcore: 1.3375v
FSB vcore: 1.3v
NB vcore: 1.45v
SB vcore: 1.057v

Temps:
Idle: 38,36,35,35
Load: 58,56,55,54

Thanks!

OK... I'll bite:

Motherboard: DFI LP P35 T2R, with the extra heat pipe installed on the CPU/NB and out the back of the case.

Speed: 3.2Ghz: (8x400)

CPU vcore: 1.28 (1.25 was default)
FSB vcore: Auto
NB vcore: Auto
SB vcore: Auto

idle/load temps: Around 32c at idle, P95 test 2 stabilizes at around 57c and sits there as long as I care to run the test. Like I mentioned earlier, I have the extra heat pipe that comes with this mobo set up to help with the CPU/Northbridge. The CPU cooler is a pretty pedestrian Zalman 9500, which is aimed at the exhaust fan and assisted by a side fan blowing cool air on the RAM and CPU Cooler intake area. The Northbridge runs a little warm (in the mid 40's), but has never exceeded 50. So I left the stock heat sinks alone. They're bolted on tho, so I may take them off and replace whatever grease is in there (if any) with the good stuff...

This was actually a stupidly easy overclock. The only thing that gave me any trouble at all was that this combination doesn't like running the 4 1GB DIMMS of DDR2 1066 I have at the rated 1066. 2 DIMMS at 1066/5/5/5/15 (and a bit higher) were fine. But with four?? I can set the dividers up and run all 4 at 1000Mhz at 2.2 volts with good stability. But it doesnt' like going any further than that without pushing stupidly hard. Since I intend on using this comp until Neph becomes available I just set the memory at 800 (1:1), tightened the timings a bit, dropped memory voltage to 1.9 for insurance, and declared victory. At those settings, the DIMMS remain just barely warm to the touch.


Quite frankly, for a while I was concerned about not enough voltage here, there, and in the other spot. Or if my timings were off, or *something* wrong. So I would sit and think about what I should change. But then pragmatism sets in and I leave it alone. Don't break what isn't, yah??

Stepping: G0

Speed: 3.6Ghz @ 450 x 8

Motherboard: Asus P5K Deluxe Wi/Fi

CPU Vcore: 1.440
FSB Term:1.3
NB:1.4
SB:1.05

Temps: Ambient = 22c
Idle: CPU = 28c | Hottest Core = 37c
Load: CPU = 60c | Hottest Core = 72c

Cooler: ZeroTherm BTF90

Prime95 Small FFT's stable @ 12 hours.

just put the +0.1's in the voltage places in your post. On gigabyte boards, no real way to see them. I think the MCH is NB. Anyone?

Asus P5K-E

Q6600 G0 @ 3.6 (400x9)

CPU vCore: 1.416
FSB Term: 1.3
NB vCore: 1.4
SB vCore: 1.05

TRUE 120 + Ultra Kaze

8 Hours Small FFT, 12 Hours Blend.

59C max Core temp - 23C Room

well i personally havnt tried 3.2 ghz but..

Q6600 G0 @ 3.6 401x 9

VID 1.2250v
Bios cpu voltage 1.2875v
Asus P5K deluxe
Tuniq Tower 120 (peak 56c)

3.24ghz 360x9

VID 1.2500v
CPU 1.3000v (Bios)
FSBT 1.3v
NB 1.3v
SB 1.05v

idle 28 load 48

57/56/50/53 (100% prime load)

(hopefully soon to be lower with 120 extreme)

Q6600 G0 @ 3.4 425x8
VID: 1.275
Vcore: 1.375
Idle: 36-40C
Load:60-65C


Prime95 Blend Torture test for 9Hrs.

from what ive read 378x9 is better, lower FSB requiring less voltage

Yes, running 9x400 would be a better idea. Performance wise, there is no difference, only in memory benchmarks.

http://www.anandtech.com/cpuchipse [...] spx?i=3184

It explains it somewhere in there, too lazy to look.

im sorry but i call bs on that... 1.28 is too low for an oc like that

Nah, those voltages are too low. I'll need to see a screen shot of CPUZ. Perhaps he said something wrong.

4GHz is too hard to do on air. Even the best air-cooling, the Thermalright Ultra 120 Extreme can't do it.

I'm not sure about that water-cooling, but the best air-cooling beats most WC that costs under $300.

The lowest voltage I have seen for 3.6Ghz used for 24/7 is 1.4v. If you want to hit 3.8GHz, you'll probably have to do 1.45V or higher.

agreed....I had lots of luck with stability. Successful boots @ 3.0, 3.2, 3.3, 3.4, 3.533, 3.6.....all no problems
Different RAM and FSB clock...linked mem...unlinked mem...only a few combinations didn't work out. All below @ or below 1.425v

But the temps were never standable over 3.3ghz....Next time I do a big overhaul I'll lap everything and try to control the heat.

I'm not even going to touch the ignorance in the last 3 posts..

But let me just say, there is a thing called VID. The lower the better. BIOS setting <> Windows Setting. BIOS has jack crap to do with real voltage (it's the VID setting, vOffset comes into play). I know someone who does 3.6 GHz at 1.288 load vCore.



Check that out, under 60C with air cooling.

Also, lapping can help a ton. At the same time it might do nothing. It all depends on the skill of the person and the relative fit of the heatsink and IHS.

wirelessfender, whats the VID on your Q6600?
nice voltages, im getting 3.24 on 1.3v bios, just waiting to get a TRUE before i go for 3.6

Its 1.225, it shows it in the coretemp window.


But my goodness obe-one, I though I had an amazing VID O_O.

Yep.. I wish I had a better VID, but I can't complain too much.

Mine was 1.2875 and I've seen some as high as 1.3250.

I must admit 1.2000 is the lowest I've seen. You won the lottery!

OK, cnum, I'll accept that. But I'd like to ask a few questions. How long have you run Prime95 at that setting? Also, I'm far more concerned with what CPU-Z is reporting at idle, not at load.

Quad 6600 at 3.2GHz (400x8)
IP35-Pro board
2G Corsair PC6400 1:1 with FSB
GE Force 8800GT 512 Video
(2) Western Digital SATA 500GB Drives
Sony SATA DVD/CDRW
(5) 80mm Case Fans
750W Thermaltake PSU
Cool temps and great performance!

Rig idles @ 38-40*C and runs 42* in normal use, with OEM Intel HSF.

Just keep going until you can't go any higher on the voltage (ie: less than 1.5v idle CPU-Z), or the temps max out (ie: 75*C full load, hottest core, cooltemp) You'd probably want those maxes to be about 1.45v and 71*C to be safe. I'm at 1.392v full load @ 67.5*C, 3.6GHz

Asus Probe is measuring Tcase, which is about 10-15C cooler than the hottest Core. Your cores could be anywhere from 55-65C. Download Speedfan (link in the sticky at the top of the forum).

It's benchmark stable. The highest I can get 24/7 Prime95 stable is 3.75 GHz. I peak at about 70C on the cores at that point. I run it 24/7 at 3.6 GHz so I can turn the fans down a bit and have a quieter PC.

Even if I gave you the exact setup it's not going to work the same on your board with your chip.

Just go in steps, you know how to OC. My only advice is that when going above 333 MHz Bus to get the CPU stable at 3.0 GHz. Then when you go to 360 or so MHz, use an 8x multiplier so you know the CPU is stable and get the board stable. Then move to 9x once the board is stable and then get the CPU stable. Repeat over and over.

Here's my thing on it, and no this has nothing to do with your specific situation. Just in general.

When OCing you are changing 3 things, the board (NB), the CPU, and the RAM. If you OC all at the same time you may not know what is causing an instability. If the RAM is rated at DDR2-800 and you have it stable there, that eliminates the first "problem." Now that the RAM is out you have the NB and CPU left. If you know the CPU is stable at 3.0 GHz and the board is stable at 333 MHz (333x9 = 3.0 GHz) then you can go to 375x8 (3.0 GHz). You know the CPU is stable, so any instability is likely the cause of the board. The RAM is in 1:1 so is running below spec (750 MHz) and the CPU is running where it has been stable.

You use smaller increments obviously, but this helps eliminate some of the guesswork. If you KNOW it's the NB, or RAM, or CPU it becomes much easier to fix. As an example, I know that 3.6 GHz (400x9) is solid on my board. So when I go for 450 MHz Bus I back the CPU down to 8x and leave the voltage the same. Since I've had the RAM stable at DDR2-1066 running it at DDR2-900 is no problem. That let me get the board stable at 450 MHz and then go back and work on the CPU stability up to 3.89 GHz (433 MHz Bus).

Edit: Short answer: Changing the multiplier will drop the CPU speed letting you know if the board is stable.

As a side note, the most IMPORTANT thing you can have as an overclocker... is patience.