My E6600 overclocking results..

[sil0nt]

Asus P5W DH Deluxe Bios 903 (removed wireless card, NB and SB heatsink covers, applied AS5)
Intel Core 2 Duo E6600 2.4ghz @ 3.55ghz cooled by Scythe Ninja and Scythe SFF21E (OEM, purchased 8/6 at Microcenter in Troy, MI)
Mushkin PC2-6400 4-4-3-10 @ 395mhz 3-3-3-8
EVGA 7900GT @ 522/1588 cooled by Zalman VF-900Cu
Vcore 1.5750
Vmch 1.65
Vdimm 2.3
Vfsb 1.4

This is all I could get stable on Prime95 and Super Pi 32meg. The system seems solid (although won't complete prime95 or superpi) at 410fsb at 1.6250 Vcore, so I backed it off to here for daily use.

Temps are good, even with all the volts. I've got 3 of those Scythe Fans and 2 Antec TriCools in a P180. With Speedfan at idle the system is dead quiet and CPU is 44C and System is 35C. At full load, its audible, but not nearly as bad as my previous system (AMD XP 2500@3200) and still cool at 37C system and 48C CPU. At stock clock/volts, the CPU is 21C idle. Also, I've been using a Celeron 326 for a week to get the system up and running and the BIOS flashed. And just to give an idea of how cool this thing runs, I had that thing up to 4150mhz from 2533 peaking at 58C at load with the same cooling setup.

http://kokshark.techbandits.com/~silent/3555.jpg

update 8/7 1:30am prime95 erroring after a couple hours.. lowered fsb and voltage for less heat and improved stability

Intel Core 2 Duo E6600 2.4ghz @ 3.46ghz
Mushkin PC2-6400 4-4-3-10 @ 385mhz 3-3-3-8
Vcore 1.5375
Vmch auto
Vdimm 2.25
Vfsb auto

 

[Duvie]

I am a bit disappointed.....That is way to high of vcore to get only to 3.55ghz....I wouldn't touch that without water...

What is exact stock vcore??

 

[Some1ne]

Aww...I really want to get a stable OC of ~4.0 GHz so that I can feel like the performance of my planned Core 2 build justifies the cost. ~3.6 GHz is still pretty good though...guess I just have to hope my chip will do a little bit better.

 

[sil0nt]

Originally posted by: Duvie
I am a bit disappointed.....That is way to high of vcore to get only to 3.55ghz....I wouldn't touch that without water...

What is exact stock vcore??

I can't say I'm entirely proud of the results, but they are what they are. And the system is quick. Huge upgrade for me.

According to Speedfan, stock Vcore runs about 1.26 and right now I'm steady at around 1.54. Browsing the web and such sees 43-44C (auto fan speeds around 60%) and letting it sit idle for a long period of time gets it down to 42C (auto fan speeds around 50%). At load, since the fans ramp up, the highest I've seen is 48C (auto fan speeds at 100%), and that was after a long time of Prime95 running simultaneously with Super PI.. After a gaming session, I saw 46C.. I think the system runs cool enough.

 

[sunzt]

hmm interesting results. Nothing spectacular, but good results still. Nice job anyway.

 

[myocardia]

Originally posted by: Some1ne
Aww...I really want to get a stable OC of ~4.0 GHz so that I can feel like the performance of my planned Core 2 build justifies the cost. ~3.6 GHz is still pretty good though...guess I just have to hope my chip will do a little bit better.

3.55 Ghz with a Conroe is roughly the equivalent of a Pentium D @6.0 Ghz, maybe slightly higher.

 

[n7]

Nice.

I guess i too would like to think we'll all be hitting the magical 9x400 with air, but i guess that might be expecting too much.

Either way, nice OC, though i too wouldn't want to be using that much vcore with air...

 

[Some1ne]

True, I'm not disputing that the 3.55 GHz conroe will trounce any other available chip from Intel or AMD, stock or overclocked, but there have been reports of Core 2's hitting in the neighborhood of 4.0 GHz overclocks on high-end air cooling, so that's what I'm going to hope for with mine when it finally shows up.

 

[StrangerGuy]

Sounds like you got unlucky and got a dud chip.

 

[Duvie]

Originally posted by: myocardia

Originally posted by: Some1ne
Aww...I really want to get a stable OC of ~4.0 GHz so that I can feel like the performance of my planned Core 2 build justifies the cost. ~3.6 GHz is still pretty good though...guess I just have to hope my chip will do a little bit better.

3.55 Ghz with a Conroe is roughly the equivalent of a Pentium D @6.0 Ghz, maybe slightly higher.

For me I have quad systems so if I dont get at least 3.6ghz I will be disappointed....I want 3.6ghz to test against my 265's at stock 1.8hz...I am sure it will beat it in highly multithreaded apps....However those 265's do 2.5ghz at 1.4v and I dont think 3.6ghz will beat it...I would to test 4ghz against it though..

 

[FelixDeCat]

Could be better.

 

[n7]

At least you didn't hit a 360 FSB wall like so many @ XS.

I have been reading there [XS] for the last hour, & OMG teh problems :Q

I think i might just wait a while for things to mature a bit, as right now, it seems like a complicated nightmare to get a really good OC on C2D.

 

[sil0nt]

After leaving prime running for a couple hours, I got an error. I also recorded a few 50C's.. so I took out some volts and lowered fsb a bit. We'll see if my stability increases.

New info:

Asus P5W DH Deluxe Bios 903 (removed wireless card, NB and SB heatsink covers, applied AS5)
Intel Core 2 Duo E6600 2.4ghz @ 3.46ghz cooled by Scythe Ninja and Scythe SFF21E (OEM, purchased 8/6 at Microcenter in Troy, MI)
Mushkin PC2-6400 4-4-3-10 @ 385mhz 3-3-3-8
EVGA 7900GT @ 522/1588 cooled by Zalman VF-900Cu
Vcore 1.5375
Vmch auto
Vdimm 2.25
Vfsb auto

 

[Keysplayr]

Originally posted by: StrangerGuy
Sounds like you got unlucky and got a dud chip.

I don't get it.. About 1GHz O/C and that is considered a dud? That thing is a monster at 3.46. It's a monster at 2.4. Remember, YMMV. I think that's a pretty good o/c, but I'm not as hardcore as those XS guys.

 

[Baked]

Heh, you do realize Anand got a special chip from Intel for his review right?

 

[Duvie]

Originally posted by: Baked
Heh, you do realize Anand got a special chip from Intel for his review right?

Yep....Most speculate that ES sample chips are cherry-picked, but we can still all dream!!!!

 

[stevty2889]

Originally posted by: sil0nt
After leaving prime running for a couple hours, I got an error. I also recorded a few 50C's.. so I took out some volts and lowered fsb a bit. We'll see if my stability increases.

New info:

Asus P5W DH Deluxe Bios 903 (removed wireless card, NB and SB heatsink covers, applied AS5)
Intel Core 2 Duo E6600 2.4ghz @ 3.46ghz cooled by Scythe Ninja and Scythe SFF21E (OEM, purchased 8/6 at Microcenter in Troy, MI)
Mushkin PC2-6400 4-4-3-10 @ 385mhz 3-3-3-8
EVGA 7900GT @ 522/1588 cooled by Zalman VF-900Cu
Vcore 1.5375
Vmch auto
Vdimm 2.25
Vfsb auto

Try upping your Vfsb and Vmch a bit, it may be the that the board is starting to struggle with the higher FSB.

 

[lopri]

Yeah do what steve says. While your OC'ing is awesome as it is like everyone says, I'd be dying to get that 5 more FSB.

Edit: Which prog are you using to measure temps? Try Everest Ultimate or CoreTemp, which would give you separate temps for each core. I learned the ASUS Probe and even the BIOS reads temps very incorrectly (probably due to the way they average the two temps into one)

 

[TekDemon]

lol I can't believe that people are dismissing an overclock to 3.55Ghz as middling...that's a huge overclock that I haven't been able to achieve since the old PIII days (I haven't actually been trying though lol). Seriously, that's a fantastic overclock on air.

And of course it'll basically tear the head off any other chip out there, lol.

 

[sil0nt]

Stable overnight. I think it will stay here.

Also.. I think most people are expecting the world from these chips due to their efficiency. These chips could get by on probably the same HSF I used to cool my original Pentium 133; however, we have much better cooling technology and overclocking features today, so everyone assumes that they must be very overclockable.

Maybe a BIOS revision or two will help.. or a motherboard generation or two... we are still in the infancy of this architecture.

 

[Ferris23]

Nice O/C! I find it funny that some people call the chip a dud, that is just silly.

 

[GuitarDaddy]

Good start. I agree with others that it may be the FSB holding you back at this point.

Drop the multi and the CPU volts and the mem ratio, and up the vmch and test for your highest FSB.

I think with all the unknowns of conroe, the isolate and consolidate theory is even more important. Until you test for max CPU,FSB, and RAM seperately you really don't know whats going on

 

[RichUK]

Originally posted by: GuitarDaddy
Good start. I agree with others that it may be the FSB holding you back at this point.

Drop the multi and the CPU volts and the mem ratio, and up the vmch and test for your highest FSB.

I think with all the unknowns of conroe, the isolate and consolidate theory is even more important. Until you test for max CPU,FSB, and RAM seperately you really don't know whats going on

QFT!! :thumbsup:

Lower that multi and test again for highest FSB. It might not be the chip holding you back.

 

[getbush]

A 2.4GHz running at 3.55 on air is a dissapointment to some of you? It is crushing everything else out there at it's stock speed, let alone at 3.55 - That's almost a 50% overclock. I think some people need to get their head out of the clouds. A lot of the early results people have in their heads are engineering samples with water cooling. I mean come on, 3.55 on air. Get real, that's sweet.

 

[sil0nt]

Originally posted by: GuitarDaddy
Good start. I agree with others that it may be the FSB holding you back at this point.

Drop the multi and the CPU volts and the mem ratio, and up the vmch and test for your highest FSB.

I think with all the unknowns of conroe, the isolate and consolidate theory is even more important. Until you test for max CPU,FSB, and RAM seperately you really don't know whats going on

Yes.. I lowered the RAM ratio and loosened RAM timings at first to max FSB.. then brought up everything else.