Assembled from purchased, new parts of the system unit. There was a following problem at startup (OS not installed yet):
1. Start the system unit, normally I go to the BIOS Setup
2. The BIOS Setup shows the CPU temperature. As I enter in BIOS Setup, it is at about 52-55 degrees and then quickly drops to 45-47, and continues to be. You might wait many minutes — the CPU temperature is increasing.
3. Change BIOS settings, press save and restart. Afterwards, POST download issued one long and three short beeps, shows "CPU Over Temperature Error, Press F1 to Continue"
, I go immediately to the BIOS — the CPU temperature is already at 75 to 77 degrees, but quickly drops back to 45.
Ie the problem is that the reboot processor at me for a second warmed up from 45 to 75 degrees, causing the error.
Possible sources of problems
1. Bad thermal paste
. First, the percent I put that thermal paste that came with cooler. After immediately got the error, removed the cooler and abundantly all smeared thermal compound ZM-STG2 Super Thermal Grease. The processor is pressed against the mount to the motherboard firmly, cooler to the CPU too.
2. Overclocking timings
. No settings for overclocking a computer I didn't put as unpacked the motherboard out of the box, with the settings and set.
3. Not running fan on the cooler percent
. Removed the side cover, checked everything. He felt the radiator cooler — barely heated (i.e., one of the few remains cold and takes the heat).
4. Problem with power supply, too high voltage, the surge voltage at the start
. That's what I don't know how to check the PSU is also brand new.
What else can be the options?
Components that make up the system unit:
1. Intel Core i5 2500K, 3.4 GHz
2. Here's a
cooler on it.
3. Motherboard ASUS Sabertooth P67 (rev 3.X)
with UEFI AMI BIOS, version BIOS firmware from September 2011
4. Power supply unit HIPER K800 800W
5. RAM DIMM DDR3 Samsung 1333MHz 4Gb x 4 PCs.
6. NVidia GeForce GTX 550Ti, additional power connectedNote:
this motherboard has a variety of temperature sensors, according to the testimony which it self-adjusts the speed of rotation of all coolers. So it is in the moment of restarting, it accelerates coolers to loud howling, and then when everything cools down, it runs completely silently and is not heated.
Ie this fact confirms that the processor is not heated dramatically in the process, namely in the one-time reboot.