Hi,

I built a PC. It has not very high specifications. I used the i5 6600k CPU and 8GB RAM with 500 GB Storage. I assembly is mounted in a rack case custom built by metal case fabricators. I chose that because I need to keep it over a server rack in my office. After installation, I found that system is overheating. It appears not to be the problem with motherboard or CPU cooler. The size of the case is 3U and used an 80mm cooler master fan.

Do you think the case is small or the fan not powerful enough for air intake? There is 60 mm distance between the server rack and the PC case. Apparently, I can't move the system anywhere else.

Thanks for your time.

This post has been edited by Alec435: Aug 5 2016, 12:54 PM

1) Is your custom build rig fully enclosed?
2) Only one 80mm fan for the entire enclosure's air circulation?
3) What's the ambient temperature? Any cooling facilities there?
4) Are the server racks transmitting heat to your new rig?
5) Is the thermal paste applied correctly?

take a big fan blow at it for 10-20min..


if temp drop alot (>10c)..

mean ur case airflow having some issue..

u need to consider to put bigger fan/ more fan for it.

You need to keep your PC in air-conditioning environment, 18~24'c for best results.

if you self install...make sure that the TIM (thermal insulation material) is properly applied...dont over do it.. and make sure the heatsink is properly seated with the cpu (secured correctly)

Try reinstalling the cpu fan