What is the normal tempreture of CPU when running a computer?

When using a computer, CPU tempreture always get change based on the work the computer do; also, CPU tempreture changes depends on the wether, seasons and other factors that affect our envirement tempreture, for example, in Summer days CPU will be much hotter than Winter days.

But how much tempreture is good for a computer? The lower the better. In Summer days, CPU tempreture no more than 50 oC in idle status will be nice, no more than 65 oC in normal working status is fine, no more than 75 oC in full loading status is fine. Suggest don’t watching too long time HD movies in Summer days. In Winter days, CPU tempreture mostly around 30 oC in idle status, its nice for the CPU.

Now lets show the real tempreture testing on the smallest fanless pc with intel core i3-4010U CPU, hystou mini pc model name FMP07-i3-4010U, other hystou mini pc models will also do such testing soon.

The fanless pc configuration details:

CPU: Intel® Core™ i3-4010U Processor (3M Cache, 1.70 GHz)
RAM: Support 2G/4G/8G/16G(2*8G) DDR3L-1333/1600MHz and LPDDR3-1333/1600MHz SODIMM Notebook memory;
Storage: Support mSATA and SATA SSD; 2.5 inch laptop HDD; Can install 1pc HDD(2.5 inch) and 1pc SSD(mSATA 3.0) together
Graphics: HD4400
I/O: Mic;Speaker;4*USB 3.0 port; 2* USB 2.0 port; 1* RJ45 Gigabit LAN Port;1*VGA; 1* HDMI;1* DC12V In;
Operating System: Windows 7, 8 & XP Pro, Linux Compatible.

The one we test comes with 4G RAM 64G SSD, Windows 7, Summer day at 31 oC indoor temperature.


1. Idle status tempreture around 45 oC, forget to take picture.

2. When running CPU high voltage testing software for around 20 to 30 minutes, CPU tempreture keeps around 53 oC, below picture shows details.


3. Running online HD movie and the CPU high voltage testing software together, for small computers this is almost full load, CPU tempreture around 70 oC.


4. Close the CPU high voltage testing software, run only online HD movie, CPU tempreture around 64 oC.


If the computer you get show higher tempreture extend the normal range, pls first remove the memory inside the computer and change another low power 1.35V laptop memory to see whether the problem comes from damaged memory, if problem not comes from the memory, pls try add more silica gel to help leading tempreture from CPU to the alloy case, here is picture shows:


When doing above change, make sure you are good at computer repair working, otherwise it may perhaps bring problem when opening the computer.

Author: sales@hystou.com

Hystou Technology Co Limited is a reliable manufacturer and exporter of fanless Mini PC, industrial PC, all in one PC and industrial panel PC. Our products are exported to the EU, America, Asia, etc., and have enjoyed a great reputation in the whole world market. In order to supply quality products and excellent services, our company has got approvable reports and certificates of CE, FCC, RoHS, SGS, ISO9001 and so on. Our goal is "Innovation First, Quality First, Customer First, Service First". We are committed to providing quality products, excellent services, competitive prices, quick responses and prompt delivery. Warmly welcome every customer to visit us, and hope we both sides could create a brilliant future with our efforts. OEM and ODM orders are welcomed.