Need Help: Computer overheats soon after booting

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PCHF Member
PCHF Member
Jun 11, 2019
I just finished building my PC and got it to boot and install windows (although it kept turning off during this install as well) and it has been constantly giving me boot issues.
Basically, what happens is if I start it after 24hrs of no use - it stays on for a good 15-25mins. I can see that the motherboard heat is increasing each couple of minutes until it hits 94 degrees and then it just shuts itself off entirely. After this, it just turns off on its own and when I go to boot it back up it tries, then it tries harder and boosts the fans and then it turns off.

I just reapplied the thermal paste to see if the processor was maybe too hot but that doesn't seem to be the case.

I'm also not doing anything while the computer is on, I am just leaving it idle.

I have also run Open Hardware Monitor on it and I can see the processor is overheating all over the place after a few minutes.

Looking for any help on this!!

Power Supply: Seasonic FOCUS Plus 850 Gold SSR-850FX 850W 80+ Gold ATX12V & EPS12V Full Modular 120mm FDB Fan 10 Year Warranty Compact 140 mm Size Power Supply
Motherboard: MSI Performance Gaming Intel X299 LGA 2066 DDR4 USB 3.1 SLI ATX Motherboard (X299 GAMING PRO CARBON AC)
Graphics Card: EVGA GeForce GTX1060
RAM: Corsair Vengeance LPX 16GB (2x8GB) DDR4 DRAM 3000MHz C15 Desktop Memory Kit - Black (CMK16GX4M2B3000C15)
Liquid Cooling: CORSAIR H115i RGB PLATINUM AIO Liquid CPU Cooler,280mm,Dual ML140 PRO RGB PWM Fans,Intel 115x/2066,AMD AM4/TR4
Processor: Intel Core i7-7800X X-Series Processor 6 Cores up to 4.0 GHz Turbo Unlocked LGA2066 X299 Series 140W
HDD: Seagate 2TB FireCuda Gaming SSHD (Solid State Hybrid Drive) - 7200 RPM SATA 6Gb/s 64MB Cache 3.5-Inch Hard Drive (ST2000DX002)


PCHF Administrator
Security Team
PCHF Donator
Malware Teacher
Jul 19, 2016
Sydney, Australia
Would also recommend installing the standard cooler in place of the one fitted now, and also make sure the bios is set to default, that is no odd fan profiles. Suggest fixing the overheating issue first and then look at the boot issue later.
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