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Overclocked E6600 & P5W DH Deluxe with Incredible Results

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July 3, 2007 7:51:55 AM

Overclocked E6600 & P5W DH Deluxe with Incredible Results

I just overclocked my new "rig:" E6600 @ 3.2GHz (2.4GHz), P5W DH Deluxe, Corsair XMS CL4 RAM: 2 X 1GB DIMMs & 2 X 512MB DIMMs PC2 5700 (6400) Dual-channel interleaved, etc. (Note: I just use the stock HSF and I also mounted the included optional fan on the passive radiator fins.)

What's incredible is how simple the 33% overclock of the E6600 & P5W DH Deluxe was.

I read several posts and here's what I did based upon discussions in these newsgroups:

2.4GHz (stock) - I first ran two instances of a software program I
have that utilizes each core 100%. (One instance for each core.) It
took 11 minutes and 10 seconds. The CPU temp went from 24C to 34C and held steady.

8O

3.0GHz - Then I went into BIOS and manually set the FSB frequency to
333MHz, the DRAM frequency to 667MHz, and the RAM voltage to 2.1V
(spec'ed) and the timings to 4-4-4-12 (spec'ed) and I guessed for the
2T parameter. I again ran the two instances of the program with both
cores at 100%. This time it took 8:58 to complete. The temps went
from 24C to 38C and held steady.

3.2GHz - For the next overclock I only raised the FSB clock to 356MHz
which automatically raised the DRAM frequency to 712MHz. I again ran
the two instances of the program with both cores at 100%. This time
it took 8:18 to complete. The temps went from 24C to 42C and held
steady.

3.6GHz (edited from 4.0GHz) - The last attempt at overclocking failed when I raised the
FSB frequency to 400MHz. I tried fiddling around with it. I finally
did get to the Windows opening screen but it took a vCore of 1.45,
etc. and still crashed. I figure at these higher voltages I best have
industrial cooling which I do not intend to get into. And 1.45 vCore
is well outside of Intel specs. And these higher settings probably
would shorten the life of my system.

So I said, "enough."

But think about this: I did not change anything else. All other
settings were left at default. And all with air cooling.

This is testament to what a great buy the Intel E6600 and the Asus P5W
DH Deluxe are. Just incredible!

JM
(AS)
July 3, 2007 9:57:33 AM

Man, I don't mean to piss on your parade here but 3,2Ghz on a P5W DH is not that incredible. I have a E6600 and a P5W and I run it at 3,69Ghz. Some diffirences though, I have a Zalman 9500 and a total of 5 120mm chassi fans, it Idles at about 48-50C and from 59-64C in full load. If you want to push it further get some cooling and bump up the vCore to 1.6125, the MCP voltage to 1.65v and the FSB to 410.

Some would probably say that my system would not last that long but it's been running at that speed since I got it, about eight months ago and still runs stable.

As for your attempt to OC to 4Ghz, 1.45 vCore is no where near enough, and your right, you'd need some serious cooling for that.

But to be honest, 3.2Ghz is more than enough for anything today, the only reason that I run my at 3,69Ghz is that my 8800gtx really likes every extra mhz the CPU operate at.

I agree, the E6600 and the P5W DH was and still is a great buy.
July 3, 2007 10:08:30 AM

Actually, I think he miscalculated there. His post mentions an FSB of 400, coupled with the 9* multiplier would make 3.6. But still.. its basically free power and 3.2 is very nice. Make sure your load temps are within reasonable margins as I don't see them stated, only idle. Run Prime95/Orthos while keeping an eye on your temps, if they go over 60/65 consider better cooling.
Related resources
July 3, 2007 10:28:45 AM

no, he said it failed at 400mhz, so supposely he went back to 9*356=3.2ghz. how he got to 4.0ghz wif a e6600 at 400mhz fsb, is anyone's guess.

3.2 is by no means "incredible". shoulda try something between 356-400.
42c load would give you plenty of headroom to push for more.
July 3, 2007 11:09:52 AM

Yes the P5W motherboards are particularly nice for overclocking with that CPU, unfortunately i was a tight Git and opted for a ECS P965T-A revision 1.0B, the most I have managed to squeeze out of that motherboard is 2.99Ghz, which is okay i guess considering the limitations of the BIOS for the ECS P965T-A.
July 3, 2007 11:30:23 AM

Good results. I've also found that 3.2 is a sweet spot for voltage, temps and performance.
You mentioned running a program that utilizes both cores but to really check stability; two instances of prime 95 or orthos is the real acid test. Being orthos stable gives you the confidence to know that any problems with software are not actually a result of your overclock.
Then to really stress it for temps you should run TAT. You may find you can still use a HSF upgrade, the intel stock unit really is a POS. You don't need to go huge or expensive but at 3.2 a heat pipe cooler will outperform the stock unit by about to 10c.
July 3, 2007 12:58:05 PM

Here ya go.
July 5, 2007 11:38:03 AM

Yes. You are correct. In my uncontrollable zeal I mis-spoke: I meant 3.6GHz and I have edited this.

Also I have since run two simultaneous instances of Prime95 and I was surprised to learn that when Intel says 2.4GHz for the E6600 they mean it.

At stock 2.4GHz with everything at default with both CPUs at 100% and my 3GB RAM at 87% usage the temps leveled out at 39C rock solid.

But at 3.2GHz the temps skyrocketed to 56C and core 2 errored out.

So I went to 3.0 and the temps hovered around 53C and I was able to squeak by.

So I have concluded that although the steps necessary to achieve an overclock are straight forward, combing these newsgroups for the necessary information to do so was a modest effort. And my initial enthusiasm when seriously tested has firmly brought me back down to earth.

I was going to just forget about it and was thinking about upgrading to a q6600 and keeping it stock but now maybe I'll...

Hey, what is the best air-cooled setup I can go with for with my E6600?

Thanks!
July 5, 2007 11:50:27 AM

Hey.. enthousiasm is a great thing, just make sure you don't break anything when on a rush :D  . TBH 56C isn't extremely high and with better cooling and some voltage tweaks you will probably get it very stable. As for the absolute best in aircooling, that would be a thermalright ultra 120 extreme with a scythe flex fan, and it will cost you. I think (unless you want to shoot for the top) you can easily get by using cheaper solutions like a Scythe ninja or similar cooling solution. Anyways... here's a review showing results for the 120 compared to other top of the line coolers including maximum OC results.

http://www.anandtech.com/casecooling/showdoc.aspx?i=294...

Enjoy!
July 6, 2007 7:41:41 AM

Im glad to read that the P5W and E6600 is a nice match, just bought a similar set up and I was really pleased with the oc you can get on it.

It`s currently running at 3.4 without major vcore upping at a load temp of 39C (using a Thermaltake Kandalf Liquid Cooling System case)
I did find out that the 380 fsb is a critical oc point on my rig, going above 380 askes for big vcore upping. Anyone else had a similar problem at 380?
looking at my temps, I think Ill try pushing it some more.
a b à CPUs
July 6, 2007 8:42:12 AM

Quote:
Overclocked E6600 & P5W DH Deluxe with Incredible Results

I just overclocked my new "rig:" E6600 @ 3.2GHz (2.4GHz), P5W DH Deluxe, Corsair XMS CL4 RAM: 2 X 1GB DIMMs & 2 X 512MB DIMMs PC2 5700 (6400) Dual-channel interleaved, etc. (Note: I just use the stock HSF and I also mounted the included optional fan on the passive radiator fins.)

What's incredible is how simple the 33% overclock of the E6600 & P5W DH Deluxe was.

I read several posts and here's what I did based upon discussions in these newsgroups:

2.4GHz (stock) - I first ran two instances of a software program I
have that utilizes each core 100%. (One instance for each core.) It
took 11 minutes and 10 seconds. The CPU temp went from 24C to 34C and held steady.

8O

3.0GHz - Then I went into BIOS and manually set the FSB frequency to
333MHz, the DRAM frequency to 667MHz, and the RAM voltage to 2.1V
(spec'ed) and the timings to 4-4-4-12 (spec'ed) and I guessed for the
2T parameter. I again ran the two instances of the program with both
cores at 100%. This time it took 8:58 to complete. The temps went
from 24C to 38C and held steady.

3.2GHz - For the next overclock I only raised the FSB clock to 356MHz
which automatically raised the DRAM frequency to 712MHz. I again ran
the two instances of the program with both cores at 100%. This time
it took 8:18 to complete. The temps went from 24C to 42C and held
steady.

3.6GHz (edited from 4.0GHz) - The last attempt at overclocking failed when I raised the
FSB frequency to 400MHz. I tried fiddling around with it. I finally
did get to the Windows opening screen but it took a vCore of 1.45,
etc. and still crashed. I figure at these higher voltages I best have
industrial cooling which I do not intend to get into. And 1.45 vCore
is well outside of Intel specs. And these higher settings probably
would shorten the life of my system.

So I said, "enough."

But think about this: I did not change anything else. All other
settings were left at default. And all with air cooling.

This is testament to what a great buy the Intel E6600 and the Asus P5W
DH Deluxe are. Just incredible!

JM
(AS)


ASUS P5B Deluxe/Wifi App + E6600, 3200/1600 at stock vcore for everything
July 10, 2007 10:00:21 PM

Quote:
Hey, what is the best air-cooled setup I can go with for with my E6600?


I have a P5B-e
e6600 @ 3.2
1.37 vCore
Thermalright Ultra 120, (Scythe S-FLEX SFF21E 120MM Cooling Fan 1200RPM 20.1 dba 49 cfm)
Antec Solo case with case fans on low

Coretemps @ Idle - 33/32
Orthos load - 44/43

I like the balance of speed and quietness. The PC sits on my desk and is virtually silent.

!