Insanely high temperature, help please!

Deathmagnet

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Jun 19, 2015
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Hi everyone!

I built my PC about a year ago and have been running it relatlvely smoothly since. However, yesterday i tried to boot only to get it stuck on windows launch. A reboot later i couldn't even open BIOS. I played around with the RAMs (removed one) and removed my second HDD, and now i have the machine operational again.. however, the temperatures seem through the roof.

My specs are ;
MSI H84M-E34
Radeon R9 270
Coolermaster Hyper 103 (CPU cooler)
Intel i5 4670K (no overclocking)

I feel like with this setup i shouldn't have issues playing some games and browsing the internet. For the past year i've been running all games on Ultra / highest settings.. however, now that i had to shuffle with the hardware i've started tracking the temperatures and it shocked me.

Essentially, all parts (SSD, GPU etc) run at around 30C while idling. My CPU however runs between the high 60's and low 70's.. Idle. Just browsing the web pushes the CPU to the high 70's / low 80's. Running WoW - with all settings on 'lowest' - nets me 95-100C. Meanwhile the GPU and all other sensors display nothing above 40C.

The reason i started messing around with the RAM again after removing the broken HDD was random bluescreens (Since autoreboot is turned on i never got to the actual screen, my machine just randomly reboots). As such i removed the second stick of RAM that i thought was giving me issues.. Is it possible that it was just heat related? Should i invest in a better CPU cooler, or did i just mess up in the assembly?

Any help is greatly appreciated, i'm a rather avid gamer and i've cancelled all of my play for now as i'm rather scared by these high temperatures. Thanks in advance!
 

Deathmagnet

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Jun 19, 2015
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Ugh, probably should have mentioned - I swapped the CPU cooler out for a while to clean it, scrubbed off all the thermal paste (despite it still being moist, so i don't think it's been running at very high temperatures in the past year) and applied a new layer. So that's /probably/ not it.
 
You don't need a new cooler, just re-apply paste on the one you have. Usually these paste applications dry up (they're supposed to), meaning any maintenance inside the case that bumps them can crack them and heat transfer becomes impeded. Minute amounts of new paste (after removing the old one) will suffice for a good heat transfer.
Also, make sure your heat sink fins are not clogged by dust balls, same for the fan.
 

nathanstrainrocks

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Jun 10, 2015
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I'm not sure if this is a proven method But i do it myself a lot It helps verify if it is flawed readings, Open the side panel, and turn on the computer. Then hold your finger about half an inch above the mobo just right next to the heat sink If It gets warm It is not a sensor issue.