Quad Core Thread: Overclocking, Cooling, Motherboards, Troubleshooting & General Info

[Clunk]

you *might* use 280W if you load absolutely everything at the same time.

The Quad alone can hit 250w when overclocked and overvolted. A factory overclocked GTX is around the 200w mark and more if pushed hard, or around 130-160w for the gts if pushed, and then add on to that whatever else he has.

[fat jez]

Right, after repeated attempts to bring my load temps down to a respectable level, I've decided that it might be worth lapping my CPU. Even with everything on stock, it was hitting 55°C under full load, which is madness for a watercooled rig!

The other thing that makes me wonder if my IHS is not flat is that there is about 7°C difference between cores 0 & 1 and cores 2 & 3, which no amount of adjusting the nuts on my heatsink has made any difference to. I remember taking the IHS off my Athlon 64x2, which made a huge difference, not sure if you can do that on a Q6600?

Cheers,
Stephen

[DratUK]

Same experience as well jez. Orthos 3 hrs @ 3204 stock voltage
OS Vista 32
Idle
C0 38
C1 36
C2 36
C3 39

These are average but do bounce around a little.

Orthos at 3 hrs

C0 55
C1 55
C2 45
C3 45

Somebody like to explain that.

Ortos x 2 renditions affinity set to 2 cores on each.

Air Cooling on Tuniq 120 fan @ 2100 rpm.

[Clunk]

You dont need to lap your CPU, it might give you a couple of c off the temps, but then your warranty is gone.

55c is absolutely fine for a quad core CPU. Think about it, 4 cores, not 1 or 2, but 4, so it is bound to get hot.

So is 55c the hottest core? and the others are 48c?

If I remember right, the IHS is internally soldered.

Did you get a backplate? I cant remember.

[fat jez]

You dont need to lap your CPU, it might give you a couple of c off the temps, but then your warranty is gone.

55c is absolutely fine for a quad core CPU. Think about it, 4 cores, not 1 or 2, but 4, so it is bound to get hot.

So is 55c the hottest core? and the others are 48c?

If I remember right, the IHS is internally soldered.

Did you get a backplate? I cant remember.

Yes, I did get a back plate. 55°C is full load, but NOT overclocked. Running it at 3.284GHz, 1.3v (from CPU-z, can't remember what it is set to in the bios) I am hitting 66°C, read from Coretemp.

Current load temps (overclocked) are:
Core 0: 66°C
Core 1: 66°C
Core 2: 59°C
Core 3: 59°C

p.s. I'm not too worried about the warranty

Cheers,
Stephen

[Clunk]

Still nothing wrong with those temps.

Its odd that you cant get them more even by tweaking though.

Good luck with the lapping

[daza]

Or you could send it back under the warranty and say its to hot even with the stock heatsink (might have to pay restocking fees).

Anyway I got bored this morning so Im back to see how far this chip of mine can go so far Ive booted into windows at 425x9, with 1.59v-core and 1.60v on the bridge but isnt stable for long as the boad craps out.

Im going for 400x9 now with 1.50v-core (under load) and 1.55v on the bridge.
Currently idleing at 47c and load under 70c.

[Phil_P]

Yes, I did get a back plate. 55°C is full load, but NOT overclocked. Running it at 3.284GHz, 1.3v (from CPU-z, can't remember what it is set to in the bios) I am hitting 66°C, read from Coretemp.

Current load temps (overclocked) are:
Core 0: 66°C
Core 1: 66°C
Core 2: 59°C
Core 3: 59°C

p.s. I'm not too worried about the warranty

Cheers,
Stephen

Those temps look fine to me.

Sorry - I've not been following closely, but what water cooling do you have. From what I've read, only the very best can handle the heat output of a quad and your temps are right up there with the very best air cooling which seems about right.

[fat jez]

Those temps look fine to me.

Sorry - I've not been following closely, but what water cooling do you have. From what I've read, only the very best can handle the heat output of a quad and your temps are right up there with the very best air cooling which seems about right.

D-Tek Fuzion waterblock, Thermochill PA120.3 radiator and an Alphacool DDC pump.

Cheers,
Stephen

[daza]

Nearly there, 385x9 with v-core at 1.50v and northbridge at 1.6v,

Core 1:69c
Core 2:70c
Core 3:69c
Core 4:70c

Should be able to get 450x8 when the X38 Quad gt arrives on my doorstep in october.

[Phil_P]

D-Tek Fuzion waterblock, Thermochill PA120.3 radiator and an Alphacool DDC pump.

Cheers,
Stephen

IMO the modern watercooling gear (even the very best) is operating on it's limits cooling an overclocked/overvolted quad. Probably similar temps to what you'd expect from a top end air cooler (eg, Thermalright 120-Ultra extreme).

[fat jez]

OK, I finished lapping the IHS and put the Q6600 back in. Load temps are now (overclocked to 3.284GHz, 1.35v):

Core 0: 52-54°C
Core 1: 52-54°C
Core 2: 50-51°C
Core 3: 50-51°C

Definite improvement, I think you'll agree! I'm much happier now temps are still creeping up slowly, but I have to wait for the Arctic Ceramique to break down a bit, which should drop them back down again a degree or two.

*edit*

For comparison, here's what they were before:
Current load temps (overclocked) are:
Core 0: 66°C
Core 1: 66°C
Core 2: 59°C
Core 3: 59°C

Cheers,
Stephen

[daza]

Looks much better.

Any chance you could put 1.40v through the v-core and put it under load for a few minutes and let me know the temp you get as Im loading at 60c just wanted to know if it could be improved.

[Zak33]

don't suppose it happens to be a much cooler day (like it is here) than pre lapping (like it was here when you posted that previous temp set)?

Just a thought. Ambient temp makes a huge difference to air and water cooling

[fat jez]

don't suppose it happens to be a much cooler day (like it is here) than pre lapping (like it was here when you posted that previous temp set)?

Just a thought. Ambient temp makes a huge difference to air and water cooling

Hi Zak,

I checked the load temps before I lapped them and they were a couple of degrees lower than the the ones in the comparison (hottest core was at 63°C), so still a good 9 degrees or so of improvement. Room temp has stayed more or less the same reading the temp of the thermometer on my clock.

Cheers,
Stephen

[Clunk]

Lets have a look at the temps after a few hours of orthos hehe.