Home hosted Minecraft server has issues...

I don't know if this is the motherboard's fault or the power supply's fault. My computer is pretty unstable and randomly locks up. This program that came with the motherboard logs what happens to it and it has these results:


I know for a fact that the mobo temps are messed up. It isn't common for the temperatures to hang at 128 degrees Celsius. This is for the SYSTIN, AUXTIN and CPUTIN, which keeps disappearing and coming back up again.

Also my computer gets the blue screen 0x00000124 (hardware failure) every once in a while, but this isn't as common as the computer lockup, which can go anywhere from once a week to not being able to stay booted for longer than 20 seconds without locking up again. The lockups are extremely unpredictable and I haven't been able to replicate them. I ran Memtest86 extensively, and all 3 of prime95's tests for about 16 hours each, but they didn't catch any problems, other than extremely odd motherboard temperatures (-60 degrees Celsius and 128 degrees Celsius).

The specs are listed:

Operating System
MS Windows 7 64-bit SP1
CPU
Intel Core i5 2400 @ 3.10GHz
Sandy Bridge 32nm Technology
RAM
8.00 GB DDR3 @ 686MHz (9-9-9-24)
Motherboard
ASUSTeK Computer INC. P8H67-M EVO (LGA1155)
Graphics
VA2026w (1680x1050@59Hz)
NVIDIA GeForce GTS 450
Hard Drives
977GB Seagate ST31000524AS ATA Device (SATA)
63GB KINGSTON SNVP325S264GB ATA Device (SATA)
625GB Western Digital WDC WD6400AAKS-75A7B2 ATA Device (SATA)
Optical Drives
Memorex DVD+-RAM 550L v1 ATA Device
Audio
Realtek High Definition Audio

(I got these specs off of Piriform Speccy).

Also, some other things:

I am not overclocking this machine whatsoever. The power supply is a Cooler Master GX 750 Watt. It can be found here:

The temperatures have been extremely high on 2 of the 3 programs (CPUID HW monitor and the monitor that came with the motherboard both said that the temps were super high, speccy only reached up to 68 degrees Celsius).

Thank you for that response, but I was able to fix it. It was the motherboard. You see it had this option in the bios to change the voltages to save power and whatnot. Wtf motherboard. It was triggering its own warnings. However, even though the odd voltages went away, the computer did not stabilize what so ever. I turned off all but one cpu core, and I've never seen the computer run this stable. I don't know if that's still a mobo or a cpu problem. I'm guessing its a motherboard problem because bad cpus are extremely rare. Also I ran the cpu under extensive (about 32 hours) of stress testing.

Nope. The computer only runs stable with one core.

I'm not sure if this is completely true, but the computer only seems to crash if it idles for too long. This is because it only seemed to crash in the middle of the night, or sometime between 6:00 am and 2:10 Pm. Both of those times are periods of no activity for me (I'm either sleeping or at school). I have the computer set so it never goes into standby mode (what kind of server would that be?).

Also the cpu seems fine and doesn't seem to have an problems like this. It's reviews are pretty solid, and the only cons are the heatsink and the ability to overclock, and I'm using a 3rd party heatsink and I'm not overclocking anyways.