PC boots with 4Pin 12v ATX cable removed

remur1n

Commendable
Feb 12, 2017
6
0
1,510
I recently built a pc using the below components

i5 6500 3.2gh
Panram 4gb DDR4 2133 x 2
ADATA 120GB SSD
KEIAN KT450
ASRock H110 ITX

Yestarday i built the pc, installed os, windows updated it and everything was fine. When windows update finished and was restarting, i relaised it wasnt turning on properly, so i opened it up and checked and i noticed the CPU fan and the case fan was moving for a split second and stopping, and it kept repeating the process. So i tested in various ways, and when the 12v ATX cable is removed and everything else is connected, the PC seems to start up normally, just no image what so ever. I was wondering if anyone could tell the r\problem is my mobo?

Heres a few things i tried vvv

Breadboarding > no change at all
Paperclip test > PSU was fine
Checked mobo > no sign of deformity

Please if anyone could lend a piece of mind that would be much appreciated.
 
Solution
PC boots with 4Pin 12v ATX cable removed
Either the PSU ( KEIAN KT450) or MB has problem.
Even you did the paper clip test, it will show you the PSU can out put power only, but it may not out put enough power to your PC. try other good brand PSU, you can borrow one from your friend, or go to local PC shop ask for help.
PC boots with 4Pin 12v ATX cable removed
Either the PSU ( KEIAN KT450) or MB has problem.
Even you did the paper clip test, it will show you the PSU can out put power only, but it may not out put enough power to your PC. try other good brand PSU, you can borrow one from your friend, or go to local PC shop ask for help.
 
Solution

remur1n

Commendable
Feb 12, 2017
6
0
1,510
I tried several more times last night and it went to the windows log in scree. (at the time i had SSD, 1 stick of ram and everything else connected). tried it a couple times but it stopped turning on after the 4th try. So im thinking iuts my PSU...

i had bought a 600w PSU last night and should come in to the mail tomorrow so i will try this,

thanks cin19!
 

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