PC wont boot

Born_2_Kill_83 · 18 Feb 2017 at 15:42

I turned my PC off to dust inside, I noticed when turning it off I clicked sleep mode, no big deal I thought.
I took the side cover off and lightly dusted the top of the gpu and bottom of the case.
I then turned it back on a couple hours later, the pc powers up as normal from what I can see but no display. When I turn it off I notice the back light on the keyboard is still on and stays on. I also notice during boot the mouse doesn't have power.

Things I've tried:
Moved gpu to another slot, though power seems to be getting to it fine.
Checked all connections.
Hit bios reset on back of motherboard.
Removed all usb devices to boot.

Any-one got any ideas I'm stuck.

jbh110tdi · 18 Feb 2017 at 16:42

was it still plugged in with power going to it? what did you use to dust it?
Have you tried running it with on board graphics?

Born_2_Kill_83 · 18 Feb 2017 at 16:47

Plugged in yes but PSU turned off, dusted it with a dry wipe
No onboard graphics on my MSI X99s

jbh110tdi · 18 Feb 2017 at 17:04

never spotted youre spec's in your sig. do you have another system that you could try the GPU in? or even try another PSU?
It is weird what you say about the mouse not powering up. only time ive ever saw this was with a dead board. ( or dead mouse but machine was booting )

jbh110tdi · 18 Feb 2017 at 17:06

forgot to ask? have you tried using 1 stick of ram? or re seating the ram?

Born_2_Kill_83 · 18 Feb 2017 at 17:18

No other system I'm afriad, I can get the monitor to turn on for a split second enough to show the monitor splash screen than it looses signal but only with power off at the wall.
The USB keyboard and USB soundcard light up fine but no mouse.
Tried the ram sticks just now no effect.

Born_2_Kill_83 · 18 Feb 2017 at 18:22

Ok got PC booting with ram in Dimms 7 and 5 only, using 1 3 won't boot (as per manual 4 sticks require 1 3 7 5 for quad channel. All sticks work in 5 and 7.

So motherboard or CPU

Born_2_Kill_83 · 18 Feb 2017 at 18:49

Ok now working with all 4 sticks in again, I mean wtf, weird afternoon. Something can't be right.

jbh110tdi · 18 Feb 2017 at 19:15

My old sabertooth board would do that randomly to me. it was 2 sticks off corsair ram I had both would work in one slot but if I put both in it would not boot. try again later and it would be fine. Not sure how but when I upgraded my PSU it never done it again...

Born_2_Kill_83 · 18 Feb 2017 at 20:20

Unless you have a backup of every single component it's hard to know what's at fault.

jbh110tdi · 18 Feb 2017 at 22:07

Born_2_Kill_83 said:
Unless you have a backup of every single component it's hard to know what's at fault.

This is very true. Im fairly lucky I've got 3 systems up and running in the house so can swap bits round if need be.

Habakkuk · 19 Feb 2017 at 13:35

If a component is damaged, it can damage other components when added.

It's still your best move, but make sure you back up first.