Just a few hours ago, i unplugged the CPU of my computer to clean and remove the dust inside. When i opened it the fan was covered in a lot of dust and the heat sink too.
So i carefully removed it and cleaned it with a dry paint brush.
I also passed the brush smoothly over the cover of the processor (I did not remove the cover of the processor).
I was going to put the fan back but a friend adviced me to put new thermal paste and then put it back.
I did put the new thermal paste (but didnt clean the previous one off).
I DID NOT touch any of the electrical components inside the CPU case, i touched only the wires and the plug of the wires.
Then i put all of it together and connected the CPU again.
I booted it but it shut itself down after ~2 seconds. Then i checked the cables and noticed a 4-pin plug was not plugged.
So i thought by plugging it back it is going to get working properly BUT no.
When i press the power button, the CPU turns on, the HDD activity light turns on too, but after 4-5seconds the HDD lights turns off and nothing is displayed on the monitor...
PLEASE HELP...i have put everything i can think that i've done whilst cleaning the CPU...
1) I disconnected the HDD then turned on the CPU but this time the HDD lights dont even light up and nothing displays on the monitor.
2) I disconnected the keyboard then turned on the CPU, HDD activity light, lights up, goes off after 4-5secconds; nothing is displayed on monitor AND the computer does not beep to tell me that a peripheral device is not properly connected.
Edited by hamluis, 31 December 2015 - 01:16 PM.
Moved from Win 7 to Internal Hardware - Hamluis.