High Core temperature
-
Hi guys. I have a little question. Before all sorry for my english.
I make a big render now, somethink like 4500px/2000px
when i start render it everythink is ok, but spu usage on my cores is 100% and the temperatures jump to 90-100 Celsius
I also hear some strange sound comming from my computer. I'm worried that something might happen and stop the render.
How can reduce spu usage like a 70-80% maxIntel core i7 920 (Bloomfield)
Ram 6 gb -
I have a similar CPU. The high frequency you hear may be from the north bridge or other controller, I used to hear a "squeaky" sound from my old PC when I had a high-poly scene.
That is a high core temperature, mine does not exceed 60C, even under all 6 cores being used to render a scene. Idle temp is 37-40C. That is with the stock cooler that came with the CPU.
I don't know if you built the computer yourself or what your level of experience is, but these are the things that should be checked:
Verify that the CPU cooler fan is plugged in and working, and that the CPU cooler is not clogged with dust or lint. You may need to carefully vacuum out the fins.
Verify that the computer case fans are working, clean and that you have enough fans to keep the air moving through the case.
Whatever render app you use, right click it and select "affinity" in the process manager. Reduce the number of cores being used - instead of "all processors" select every other one. This will slow down the render and the cores will still be used at 100%, but it will also reduce the overall thermal load and give the CPU cooler time to remove the heat.
Here's the technical part.
The CPU cooler may be inadequate, improperly installed, or the thermal paste (the material used between the CPU and the CPU cooler) may have been inadequately or improperly applied.
The CPU cooler should be inspected and verified that it is fully seated. It should not be leaning, twisted, or hanging at an odd angle. It should be sitting centered, square and flat on the CPU.
If the paste was poorly applied, the CPU cooler will need to be removed, the old paste carefully cleaned off the CPU and the cooler, new paste properly applied and the cooler reinstalled.
If the cooler is inadequate, it will need to be replaced. There are several good aftermarket coolers out there, but If your cooler looks like mine it should be adequate.
This is the cooler that came with my CPU:
If yours is the smaller, flat type, it may be inadequate.
As far as the noise, I don't know of a cure. Keep an eye on your north bridge temperatures with some sort of monitoring software and make sure that it doesn't overheat.
Good luck, hope this helps.
-
Several other ideas; / comments. For good reliable design we usually try and keep the base emitter junction temp below 125C, there is a thermal resistance from that point to the mounting base. The magnitude of the temp difference and the base temp depends on the dissipation and that resistance. Don't neglect the air filter and cleaning them. My machine has a air tunnel running from out side thru a filter directly to the top of the CPU where the fan is installed so make sure you don't have any obstructions that would prevent heat flow from or air intake to your PC. For a lap top the base will be an area for high heat conduction so don't thermally isolate it. Feel around your case and you can probably feel the hot spot so even have a fan blow on that could help. I would not be surprised if the funny sound is coming form the fan bearings which are usually not very good. I recently hand noise from my graphics fan so I lubricated them => that probably would make the manf. frown but it worked! Can you monitor fan speed and even set it to run at a higher speed? That may be a BIOS setup item =>mine has that. May desk top has a spot for an addition fan. That may also be a consideration for you.
You did not mention the PC manufacture. There have been some reports of high heat I have read so check your maker, the mother board spec / with them on limits and search the internet for his design.
Just some thoughts. -
Thank you for having responded and for advice. May be the problem is my CPU cooler. It`s flat and smaller from the image.It s not enough for the stress of computer. Thanks again.
Advertisement