Problem Server keeps shutting down my computer.

[Moholmarn]

OS: Win 7 x64 ultimate
Java: JRE 7u10
FTB Version: Ultimate 1.0.1 (MC 1.4.7)
Cpu: AMD FX-4100 3,7 Ghz (quad)
Ram: Corsair XMMS 8GB (2x4096GB)
Bandwidth: D25/U10
Local server not dedicated (max players 3)
No mods added, just removed ExtraBiomesXL due to missing ids. It kept us from logging in.


At first the server kept spamming the console with misplaced entitys, after spamming the console for a while my computer just shut down. So i removed all the mobs/passives because they were what the spammed messages was about. Then it became stable for a while and then i got a misplaced chunk error and after 5 mins my computer shut down again. I've checked all the logs i can get my hands on and they mention absolutely nothing. So now i keep yelling deaththreats at the goddamn server for not working and not telling me why. Also googling turned up squat. Anyone have had any similiar issue?

If i do get my hands on anymore info i'll keep you posted or if i manage to solve it i'll post a detailed walkthrough for future generations.

Edit: realized i forgot ftb version

 

[Moholmarn]

Small update. As far as i can see in resource management on the server, it doesn't even utilize 7% of the actual resources available. It doesn't even change right before the shutdown happens.

 

[Moholmarn]

Mods go ahead and delete this, because captain obvius strikes again. It was my cpu overheating from a dust-clogged cooler. Boy do i feel like a retard -.-