FX 8350 H55 very high temps

[Ecoteriya]

Hi, I just built a gaming pc and my CPU is constantly thermal throttling, iv'e had to underclock my cpu to 3ghz just to make it stop thermal throttling. Is this normal or have i done something wrong?

 

[clutchc]

Something is wrong. Do you have your PUMP connected to a 3 pin header that is at 100% all the time? Do you have your RAD FAN connected to the CPU FAN header?

 

[Ecoteriya]

Uh actually I think i have them reversed, as in i plugged the pump into the cpu fan thingy and the fan into the case fan header, so do I have to switch them two?

 

[clutchc]

Yes. That's how I have both my Corsair H60 machines. The CPU FAN header is for controlling a HS/cooler's fan. In this case, that would be the radiator fan. The pump needs to run at full RPM at all times to keep from burning out and to best cool the heat sink.
That's why the Rad fan is 4 wire and the pump is 3 wire.

 

[Ecoteriya]

:/ didn't seem to change anything. my pump is going at either 1000rpm or 1500rpm, im not 100% sure which. I've already tried re-applying the thermal paste.

 

[joxca]

i also have amd fx8350 with h70 and i get around 85 celzius

 

[clutchc]

Check that the fan header you plugged the pump into is not set in BIOS to run at reduced speed. If you want to verify that the pump hasn't been damaged, connect it direct to a Molex adapter with an adapter. Leave your CPU FAN header set to auto in BIOS.

 

[clutchc]

i also have amd fx8350 with h70 and i get around 85 celzius

At load or at idle? OC'ed?
Did you install it correctly? https://www.youtube.com/watch?v=az6-wTeQ8Yo

When I had my FX-8350 (4.2GHz)/Gigabyte 990FXA-UD3 and Corsair H60, it never went above mid 70Cs at load.

 

[joxca]

i also have amd fx8350 with h70 and i get around 85 celzius

At load or at idle? OC'ed?
Did you install it correctly? https://www.youtube.com/watch?v=az6-wTeQ8Yo

When I had my FX-8350 (4.2GHz)/Gigabyte 990FXA-UD3 and Corsair H60, it never went above mid 70Cs at load.

At load.
Idle is 37-45

 

[Ecoteriya]

I'm suspicious about how the thermal paste was put on when i mounted the h55, i think i may have put on too much, would that decrease performance in the h55?

 

[clutchc]

I'm suspicious about how the thermal paste was put on when i mounted the h55, i think i may have put on too much, would that decrease performance in the h55?

Very possible. TIM actually decreases thermal conductivity between the two surfaces if too thick. You really want to simply put on only enough to fill in the microscopic pores of the mating metal surfaces. Metal to metal would be fine w/o TIM. But the microscopic pores allow air pockets which limit surface contact. Air is a poor conductor of thermal energy. That is why TIM is used. Put a tiny dab about the size of a used pencil eraser on the CPU and them let the compression and heat spread it where it will. That's the only way I have ever applied TIM to AMD CPUs.