hello there, i have this problem with overheating for like 2 YEARS already, then month ago i were touching components in my pc case while stressing PC and got hit by back fan blade, i got scared and accidentally slapped my cooler master tx3 evo, temps instantly decreased from 120*c to 60*c and never again gone higher than that until today. Today when i woke up i heard cooler fan noise like there is wire touching fan blades so i open up pc case to check, i fixed it but when i turned on pc, temps are back on same 40*c idle 120*c stress 125*c shutdown... Could anyone tell whats the problem and why back then hitting cooler decreased cpu temperature?

Note: Cooler is not dirty, other parts are not dirty, new thermal compound, applied like 20 times always same result, Cpu is not overclocked, Cpu is AMD Athlon 64 X2 4800+.
Thanks in advance.Hi, and welcome to the forums.

There could be any number of reasons why knocking your cooler would cause instant cooling results but it's probably best to COVER all bases:

- Thermal paste/grease.  You say that you have re-applied thermal paste several times so scratch this one. [Note only a pea sized amount is needed, clean off old paste before applying new]

- Heat sink contact with CPU. AMD CPU's are fairly idiot proof, make sure the clips are in and pull the lever down. [Cooler should sit firmly in place]

- Faulty thermal sensor on mother board. Not a LOT that you can do about this one but it can be evidenced by high temperatures on cold start up (Boot immediately into BIOS and check temperatures, they should be a little over ambient room temperatures. [Note this is assuming correct functionality of CPU cooler]

- CPU Fan Fault. Does the BIOS report reasonable CPU fan speeds? [800 - 2,800 RPM (PWM) ± 10% or 800 - 2,200 RPM (PWM) ± 10% (EU Version)] Given the odd noises which you have REPORTED I would suspect this to be the culprit.

I HOPE this helps.


It's a shame it's not a liquid cooling system. This would have been a much shorter reply: Air lock, shake it about a bit. Thermal paste/grease- tried all amounts from a lot to very little all have same result, spent more money for thermal paste then cpu is worth..
 Heat sink contact with CPU- well i had stock cooler when this started(u just cant mount that cooler incorrectly) i thought its bad cooler so i bought hyper tx3 evo which gives same result...
 Faulty thermal sensor on mother board -well i don't know from cold start if i remember correctly it was 35*c while it was 23-26*c in room
 CPU Fan Fault- i have eu version 1800 rmp idle 2400 rmp load, it does spin fast noise is from running out of oil i think, but doesn't affect performance..