Replacement part

[Cheesefly]

Hi,

Recently my computer refuse to power up, no fan spinning or light on pressing the power button. However, if i unplug all the connection from psu and leave it for a day, on connecting back, it will run as normal. But it will refuse to power on the next day again.

I have tried:
- testing my psu on another computer and it work.
- Change cmos battery
- use eraser on ram
- run on minimum setup
all dont power up the computer unless i unplug the psu connection.

my computer setup:
asrock b75m-dgs with intel i5-3470
Kingston 8gb-1600
powercolour HD4870
strongtium 120 gb ssd with win 8.1
FSP 500w


What can the problem be and please recommend replacement part.

Thank you.

 

[jtjt00]

When it fails to power up, are fans running or totally no power at all? Your HD4870 is kinda old and maybe the cause of failed power up.

 

[Cheesefly]

totally no power at all....no light, no fan spinning...totally no reaction at all.

 

[gld998]

totally no power at all....no light, no fan spinning...totally no reaction at all.

mortherboard or psu. Lend from fren a psu and try...