New PC boots then switches off and then posts.

[MrVonGrumble]

Hi,



I am a little concerned with my new PC as I have only just built it yesterday. Out of the many systems I have built I have never experienced this problem.

So what happens is i press my power button it will spin everything up and all the lights come on etc then it shuts down then boots properly. Any Ideas. All parts are brand new.

I do get the Asus code A0 when it has booted into windows, this code means all is well apparently.



Specs:

I7 8086K

Asus Maximus x hero

16GB Corsair Vengeance Ram 3000Mhz (Using XMP)

Be quiet dark rock pro 4

Be quiet fans 140mm fans

EVGA GTX 1080 TI SC Black edition SLI only running one card (ATM)

500GB Samsung 850 EVO

500GB Samsung 860 EVO

250GB Samsung 970 EVO

Seasonic Focus Plus Gold 1000W

Bitfenix Custom cables


Any Ideas?

I am hoping its not a faulty Part.

Cheers Matt

[MrVonGrumble]

Hi,



I have hopefully found the solution.

Having XMP enabled made my system unstable.

I will monitor it over the next few days but hopefully that was causing the issue

[chevell65]

Sounds like it was stuck in memory training mode.

If you aren't stable at XMP memory settings then try bumping up the System agent voltage VCCSA, and VCCIO voltages to 1.125 or so. You should be having no problems running your memory at 3000 XMP on this board.