Computer turns on for 1 second and than turns off again

[Markus_Ei]

Hello, my Pc starts, and turns off directly,i tried if its the PSU, but if i connect my other psu it still happens

If i unplug the CPU cable the Pc runs without shutting down.

 

Specs:

I7 6700k

MSI GTX 1080

16GB Corsair 3000mhz LED Ram

Corsair Rm650x

MSI Z270 SLI Plus

Edited July 21, 2017 by Markus_Ei
Added Ram

[Zando_]

Are you sure you're using the right CPU cable?

[Markus_Ei]

Just now, Zando Bob said:

Are you sure you're using the right CPU cable?

Im using a Corsair sleeve Cable, but it is the deticated CPU cable, i tried with my Be Quiet Pure Power 9 600W and it doesent work too (its a non modular PSU)

[Zando_]

2 minutes ago, Markus_Ei said:

Im using a Corsair sleeve Cable, but it is the deticated CPU cable, i tried with my Be Quiet Pure Power 9 600W and it doesent work too (its a non modular PSU)

Where'd you get the CPU from? It sounds like it could be a CPU or mobo problem. 

[Morgan MLGman]

Try booting with one stick of RAM, swap them around and check if the issue persists. Try seating them in different slots too.

[Markus_Ei]

11 minutes ago, Morgan MLGman said:

Try booting with one stick of RAM, swap them around and check if the issue persists. Try seating them in different slots too.

It worked, but now it takes way longer than before (before 6sec | now 15 sec) or i get Reboot and Select proper Boot device or insert boot media in selected Boot device and press a key

[Markus_Ei]

13 minutes ago, Morgan MLGman said:

Try booting with one stick of RAM, swap them around and check if the issue persists. Try seating them in different slots too.

i also put in both Ram sticks again

[Morgan MLGman]

1 minute ago, Markus_Ei said:

It worked, but now it takes way longer than before (before 6sec | now 15 sec) or i get Reboot and Select proper Boot device or insert boot media in selected Boot device and press a key

Might be faulty RAM slots, RAM sticks or one of the RAM sticks wasn't seated properly. It's up to you to determine what was wrong now

[Devin92]

it can be the RAM the motherborad or the CPU. all of which can lead to the symptom you described. I have faced them all LOL. if you have overclock on ur CPU, reset bois first by removing the battery on motherboard.

[Markus_Ei]

5 minutes ago, Morgan MLGman said:

Might be faulty RAM slots, RAM sticks or one of the RAM sticks wasn't seated properly. It's up to you to determine what was wrong now

Thanks

[Edwired287]

That could be dust related. Had a simliar issue like that before on my motherboard. I had to use wd40 fast drying contact spray to clear out the all the slots for ram cpu and pcie x16 lane as i got the motherboard secondhand as it was so dirty. After i did all that the board started up like a champ. Make sure all connections are fitted and secured. And the slowness of the boot could be related to ram timing and speed. And make sure the hard drive is in sata mode not ide.