Originally posted by: QuixoticOne
That sounds like it could be normal, or it could be a bit high.
I've got a Q6600-G0, P5K-E M/B, in a P180B, also with a Gemini II and a pair of slow 120 mm fans on the Gemini, and I run about those levels of temperatures at light load.
Further, my ASUS motherboard's reported temperatures tend to be similar to or a bit higher than the CPU temperature at light loads.
I could certainly see how in a moderately warm room and with somewhat normal case airflow that the inside of your case could easily be in the 30C+ range, and the hotter parts could be up near 35-38C. At idle, what does your motherboard's temperature read? Your GPU's?
Do your temperatures change for better or worse significantly after an hour if you run the PC with the case door open, or with a front 5.25" drive bay cover panel removed?
You might try gently turning the PC on its side so the Gemini rests on top of the CPU pressing down on it. That'll cause it to apply a little more force and have a little less torque tending to pull the cooler away from the CPU. See if that changes anything after an hour or two of running that way.
Perhaps it's best to do the experiments all at once, case door open, PC on side since that'll be a convenient arrangement.
I haven't received my IP35-E yet, so I don't know what it does, but many BIOS settings these days overvolt the CPU *by default* with some kind of intelligent / auto over-clocking type system. 1.14Vcore seems on the low side for a 65nm CPU like my Q6600, but maybe your E8400 can or is specified to actually run with less Vcore at stock speed. Try to disable any overclock related options, or if you know what your nominal Vcore should be for stock speed operation you could try to manually set the Vcore from "AUTO" to that exact stock value if it is less than what you're running at now.
If none of the warm, room temperature, limited case exhaust airflow, or high vcore issues are true then maybe the Gemini II isn't making good contact. What kind of paste did you use, how did you apply it, and how tightly did you screw down the Gemini II?
If you run the Gemini either too loose OR too tight it won't make the best thermal contact and your temperatures can run a bit high.
Then again Idle temperature isn't the end story for a PC... try running dual-core simultaneous small-FFT runs of Prime95 or StressPrime2004 or whatever and see what your motherboard, CPU, and GPU temperatures are. If the CPU is staying under around 50C-60C under heavy load that isn't too bad.
Originally posted by: nabinabi
Thanks madscientist, I used Core Temp. It says 38 and 39C for each cores whereas abit EQ says 43C at idle. If it's not typical idle temp, what should I do first?