New system, weird not starting issue

slippyjim

Distinguished
Feb 28, 2012
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18,685
Hi,

I am having problems with a PC I have built
Asus h110m-k
intel i5-6600k
Kingston 2133MHz 8GB
Samsung 750 evo 120GB SSD
Toshiba 3TB sata3 HDD
Asus drw-24d5mt dvd writer
Unyka slim tower with 450W PSU

All worked OK initially, then in the last 2 weeks it has not turned on correctly, the screen would power on and the Asus logo would appear but it would go no further. This happened several times but also it booted up OK as well so its an intermittent problem

There are several USB devices connected
3TB USB3 HDD
WD 2TB USB2 HDD
Logitech keyboard and mouse
HP deskjet 2540 printer
DYmo labelwriter 450 printer
TP Link wn823n v2 wifi adaptor
10 port USB hub - but only had a cable for charging a phone plugged in and it was not connected to a phone at the time

The next time it didnt start I disconnected all the USB devices and it booted up OK, I then
Updated the BIOS to the latest version
Changed BIOS to disable all boot devices except the SSD
Disabled the asus full screen logo so i could see what BIOS was doing

It all worked OK but then the next day it didnt boot up but it was slightly different,
I press the power button
the screen is blank, no BIOS details at all, but all fans are going OK
The monitor light changes from orange to blue so its powered on correctly
Screen goes from jet black to slightly grey and stays like that

I powered the tower down, disconnected all the USB devices and it booted into Windows OK, I then shut down and reconnected all USB devices and it booted up OK again, but I am just waiting for it to not boot up again.

Do you have any idea what could be causing this problem?

Thanks