High temps on Q6600 during overclock

[Phoenix]

I've fiddled around a bit with OC'ing my rig, and the temps while running my Q6600 @ 3,4GHz is around 46C idle, and almost up to 67C under full load using OCCT (where the program stops testing at 67C). As it is now, I'm only running my CPU at 3,4GHz while benchmarking, as I think the temps are too high. The same goes for 3,2GHz, only with a few degrees lower coretemps, so usually I'm running at 3,0Ghz, where it's @ 40C idle and 66C full load.

My rig:

MB: Asus P5N-T Deluxe (BIOS 0802)

CPU: Core2Quad Q6600 "G0" @ 3GHz (8x375)

RAM: 2x1GB Cruicial BallistiX PC2 8500 @ 1200MHz

GPU: 2x XFX GF 8800GTS 512 ADEdition 750/1050MHz

Cooler: Tuniq Tower 120

PSU: Antec TruePower Quattro 1000w

Case: Antec P182

I read one of the previous posts regarding the Q6600 withstanding temps up to 70C, but I still think my temps are pretty high using the Tuniq Tower cooler. I've left all the voltage options on auto, as I'm fairly new to OC'ing.

Have any of you got an idea of how to keep my temps down, by for instance setting the vCore manually?

 

[Phoenix]

Please note that the Tuniq Tower fan is set at maximum, and the two exhaustfans in the top of the case is also set at high.

 

[da2ca]

That doesn’t seam to bad with air although i am definitely not an expert and have never used a quad on air. I am at 1.45V @ 3.6GHz to run prime stable will boot and run with 1.35 but not prime stable. 40/45 now but in the late sixties after running prime for a couple of hours "Anyone for toast"? And that’s using a PA120.1 + PA120.2 but the GPU & NB are under water as well.

Dave.

 

[Phoenix]

I've been curious to try setting the vCore manually, but I'm afraid to screw things up. Talked to a friend who's far more known to OC'ing than me, and he said that it would be safe to run the vCore up to 1,38, but I'd like a second opinion before I do so.

Also, I may be switching to watercooling later on, when the bills are paid and the money is flowing.

 

[da2ca]

I've been curious to try setting the vCore manually, but I'm afraid to screw things up. Talked to a friend who's far more known to OC'ing than me, and he said that it would be safe to run the vCore up to 1,38, but I'd like a second opinion before I do so.

Also, I may be switching to watercooling later on, when the bills are paid and the money is flowing.

Only thing is more Vcore = more heat You should be ok up to 1.4v on the core but i wouldn’t stress test it at that, as your temps are quite high as they are. I don’t like anything over 65c and only over 60 while stressing.

 

[Pat123]

Right if your vcore is set to automatic then your board will have set it pretty high i would have thought. To run 3.4 you should be at about.. 1.38 ide say, 1.4 is pretty high for air.

Your temps do seem orite for air cooling, though i wouldnt like it above 63oc tbh.

My Q6600 is at a lowely 3.0Ghz as i havent really had the time to fiddle until its stable at 3.4 yet. Im getting temps of 29c idle 40 load prime95 20 minutes. (on water) But thats as i said thats still at 1.3v on the vcore. Ide try dropping the vcore as far as you can whilst keeping it stable.

If your into heavy overclocking then ide definately look into water cooling.

 

[Phoenix]

As you see on the attached picture, the vCore is at 1,36v while monitoring, but as soon as the test starts the voltage goes downwards. The ripple is at maximum 0,03 (2,35%). Also, I've read several places that no program reports the actual vCore, but slightly lower?

 

[da2ca]

As you see on the attached picture, the vCore is at 1,36v while monitoring, but as soon as the test starts the voltage goes downwards. The ripple is at maximum 0,03 (2,35%). Also, I've read several places that no program reports the actual vCore, but slightly lower?

Have you ever heard of the Vdroop? That is what you are talking about. do a search on the forum or Google "Vdroop".

 

[Pat123]

Ah right, well.. up it to 1.38 and the vdroop should allow it to keep on going.. its worth a try.

 

[tinytomlogan]

I think if you are going to be overclocking your quad then you should be looking at better cooling matey even water to be honest.

DONT use auto voltages as it could be 'overvolting' as much as undervolting dude and would need to be watched carefully.

With decent cooling 1.4v is fine for 24/7, I know people using 1.5+ for fun runs and benching though.

1st point of call better cooling matey

 

[da2ca]

Ah right, well.. up it to 1.38 and the vdroop should allow it to keep on going.. its worth a try.

Just watch those temps +V = +C (more volts = more heat).

 

[Phoenix]

I think if you are going to be overclocking your quad then you should be looking at better cooling matey even water to be honest.

DONT use auto voltages as it could be 'overvolting' as much as undervolting dude and would need to be watched carefully.

With decent cooling 1.4v is fine for 24/7, I know people using 1.5+ for fun runs and benching though.

1st point of call better cooling matey

Heh, I checked out the Hardware Monitor in the BIOS, and while CPU-Z and OCCT reported a vCore of 1,36v, the HWM said it to be 1,44v...I guess I'll try running it at 3,4GHz at 1,38v and check if it's stable, also keeping an eye on the temps. If unstable, maybe notch it up with the smallest increment and try again.

 

[Phoenix]

Okay, I tried running it on 3,4GHz at 1,375v on the core, and it managed to keep up with the stresstest of OCCT in 8 minutes before the CPU hit 70C. I don't know if I can call it an improvement, but it's something. It's idling at 43C, which is a huge improvement, but it figures if it ran on 1,44v before. I'll try 1,38125v and see if it's more stable. Anyway, thanks for the help this far, guys.

 

[Pat123]

Right so now, see how low you can take the Vcore whilst keeping it stress testing.. On air 3.4 is pretty good tbh, though 70c is too hot for everyday use.

Try the vcore around. 1.35 Should manage around 3.2 on 1.35, ide suggest clocking it at 3.2 and leaving it at that.. coz on air, your temps are going to be getting too high.

 

[Phoenix]

Okay, this is how far I've gotten since yesterday:

Still at 3,4GHz, tried setting the vCore to 1.3250, and system posted and ran all fine and dandy, but would only allow stresstesting for about 3-4 minutes before getting an Code 1 error-message (Code 1 : thread stopped because another thread stopped). The temps were nice, and everything seemed to be okay.

So now I'm wondering if there is any use in increasing the NB voltage, or if I should just leave it and try other settings. As the Q6600 is designed to use a multiplier of 9, instead of 8, as I'm running it on, maybe I should set it back to 9 and set the FSB to 377?

 

[Pat123]

yeh try a multi of 9 set to 370 see where you get to that should take u to 3.3Ghz on 1.35 volts. That should keep the temps down abit more aswell.

 

[Phoenix]

Now running the CPU at 9x375 with 1,3250v vCore, and temps are looking nice, though I haven't checked loadtemps yet.

But I'm still curious about the NB voltage. I've got two friends who're into OC'ing, and one tells me to leave it at auto, while the other one tells me to adjust it manually, so it doesn't overvolt. As the 780i-chipset is known to get rediculously hot, even at stock, I can only imagine what would happen if the darn thing got a little extra juice. And what would be a secure setting, in that case?

 

[darkorb]

just set all the values, set the NB to 1.5 and see if its stable. 1.65 would be the highest i go depending on temps and if its making a diff or not

 

[Phoenix]

Okay, I got my system running stable with 2xOrthos at 3,375 (9x375) with a vCore of 1,34150. Only thing I had to do was to downclock the RAM to 1067 at 2,19v, which sucks. Tried to clock it up again once the system was stable, running at a modest 1100, and the system booted, but froze while running the CPU-test in 3Dmark06. I guess I should try upping the voltage a bit on the RAM, but I'm not sure as to how high I can push it before it goes buh-bye without any kind of active cooling.

Another thing, do any of you know of a vDroop mod for the P5N-T Deluxe?

 

[rrjwilson]

As for temperature my little Q6600 get those sort of temps with AC Freezer. Nice OC i'm after a bit more with mine but it just doesn't wanna POST at above 3.0GHz and 930MHz RAM.