Completely new build, temps sky high in BIOS.

jcolongo

Prominent
Aug 31, 2017
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Hi,

So, me and my friend have been building a PC, it's for him. After hours of troubleshooting, we finally got it booting, and upon going into the BIOS, the temps are sky high (idling 90). The cooler is a Cooler Master Hyper TX3i, which I've seen no videos on at all of installation. According to Amazon reviews, no-one has had any problems. The cooler is mounting completely fine, the thermal paste is spread out evenly and there seems to be no issues. It could very well be that the temperature readings on the motherboard are done for, but I don't understand how.

Full specs:

CPU: i5 7600k
Motherboard: ASUS ROG Strix B250G Gaming
Cooler: Hyper TX3i
RAM: Corsair Vengence 16GB LPX
Other cooling: Be Quiet! 120mm fans.
Case: Fractal Design Core 1100

Help?
 
Solution
At idle, your temperatures should be 10-15c. over ambient.
Make certain that the cooler fan is spinning.

TX3 is a very poor cooler.
It is also a pushpin mount which is tricky to do properly.
Here is my stock instructions on how to mount a Intel stock cooler, your mount procedure should be the same.

----------------how to mount the stock Intel cooler--------------

The stock Intel cooler can be tricky to install.
A poor installation will result in higher cpu temperatures.
If properly mounted, you should expect temperatures at idle to be 10-15c. over ambient.

To mount the Intel stock cooler properly, place the motherboard on top of the foam or cardboard backing that was packed with the motherboard.
The stock cooler will come with...
The first thing I would do is to remove the HSF and install the Intel stock HSF. MAKE sure you clean off ALL old thermal paste before applying new (AS 5 or better). While you have the Hyper HSF off check the base and make sure it is completely level. Use a straight edge and eyeball - I bought a HSF and it was NOT level and I had to sand it (Used 800 & 1200 grit sand paper. Dumb question, but have to ask, was there a plastic cover over the base of the HSF/CPU and you did remove it.

Also Have you checked for an updated BIOS, possible bug in reporting cpu temp which was corrected with a Updated firmware. NOTE: this is the first thing I check on a New build before installing OS. The 2nd thing I check before installing the OS is that the Memory is error free (ie Run a Memory test from a bootable disk - Memtest86+ is good).
 
At idle, your temperatures should be 10-15c. over ambient.
Make certain that the cooler fan is spinning.

TX3 is a very poor cooler.
It is also a pushpin mount which is tricky to do properly.
Here is my stock instructions on how to mount a Intel stock cooler, your mount procedure should be the same.

----------------how to mount the stock Intel cooler--------------

The stock Intel cooler can be tricky to install.
A poor installation will result in higher cpu temperatures.
If properly mounted, you should expect temperatures at idle to be 10-15c. over ambient.

To mount the Intel stock cooler properly, place the motherboard on top of the foam or cardboard backing that was packed with the motherboard.
The stock cooler will come with paste pre applied, it looks like three grey strips.
The 4 push pins should come in the proper position for installation, that is with the pins rotated in the opposite direction of the arrow,(clockwise)
and pulled up as far as they can go.
Take the time to play with the pushpin mechanism until you know how they work.

Orient the 4 pins so that they are exactly over the motherboard holes.
If one is out of place, you will damage the pins which are delicate.
Push down on a DIAGONAL pair of pins at the same time. Then the other pair.

When you push down on the top black pins, it expands the white plastic pins to fix the cooler in place.

If you do them one at a time, you will not get the cooler on straight.
Lastly, look at the back of the motherboard to verify that all 4 pins are equally through the motherboard, and that the cooler is on firmly.
This last step must be done, which is why the motherboard should be out of the case to do the job. Or you need a case with a opening that lets you see the pins.
It is possible to mount the cooler with the motherboard mounted in the case, but you can then never be certain that the push pins are inserted properly
unless you can verify that the pins are through the motherboard and locked.

If you should need to remove the cooler, turn the pins counter clockwise to unlock them.
You will need to clean off the old paste and reapply new if you ever take the cooler off.
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Solution