I changed my cpu fan and now my computer wont boot

[drjerms]

Hello, I recently had to change the psu in my friend's computer and had no problems with it until I had to change the cpu fan/heatsink. Now the computer will turn on but will not boot. All fans and everything spin but nothing on the screen. I have tried changing video cards but get the same thing...no signal to the monitor...any suggestions?

 

[scout_03]

recheck all your cable to see if you did not forget one also look for the one that power the graphic card

 

[C12Friedman]

graphics card power cable(s) and CPU power cable are the two most common cables to get neglected during reassembly - like scout says, check those first. If all is good there, we can go to the next step... POST, does the computer make any beeping noises when turned on?

 

[Rugger]

Make sure that the CPU fan is installed in the CPU fan header. POST checks for a signal on that header and won't boot without it.

 

[mercer95]

Is it possible that you dislodged the cpu, i now its unlikely but it worth a stab at.

 

[drjerms]

Disconnected all wires and re-seated them. Cpu is in place firmly. No beeps at all when turned on. Same blank screen.

 

[C12Friedman]

Do you have a different PSU you could try - even low wattage?

 

[Rugger]

What are your system specs? Did you verify that there is a fan plugged into the CPU_FAN header on the motherboard?

 

[drjerms]

Its an old computer...I am trying to get my hands on a lower wattage PSU. Everything is plugged in and seated. This only started happenning after i changed out the cpu fan and heatsink. I tried to put the old one back in and it did the same thing.

 

[drjerms]

Thanx all, but i figured out that the hard drive must be corrupted as I plugged it into another pc and it wouldnt boot either. Time to buy new.

 

[Guest]

Hello, I recently had to change the psu in my friend's computer and had no problems with it until I had to change the cpu fan/heatsink. Now the computer will turn on but will not boot. All fans and everything spin but nothing on the screen. I have tried changing video cards but get the same thing...no signal to the monitor...any suggestions?

pull the cpu out and check for bent pins.