PC won't boot, don't know why. Need help.

cleanshot911

Reputable
Oct 28, 2014
765
0
5,360
So me and my friend were tinkering with his build trying to see if we could get the LEDs to work right in it. We found out that we couldn't sync the LEDs on his case and on his fans because the LEDs on the fans were built in (it was his build so I wasn't sure if that was the case until we looked at it). We didn't touch anything except for the LED controller and the psu (just turned the switch on and off when we were working with the pc). But for some reason, now when we turn his pc back on, his monitor doesn't register a signal on the Displayport setting, even though we never even touched the Displayport cable running from the gpu to the pc. Also his keyboard and mouse, which used to light up regardless of whether or not the monitor displayed anything, no longer turn on. We can't even get the BIOS to display. I tried restarting the thing, plugging the Displayport cable out fo his Asus PB278Q monitor and plugging it back in, as well as pulling it out of his gpu and plugging it back in, I switched the USB ports that the keyboard and mouse were using, and still nothing is working? Does anybody have any idea why the BIOS won't boot? The psu is still supplying power to everything, since his gpu fans are spinning, the mobo's lights are still on (so I don't think we somehow fried it), all the case fans are spinning, all the LEDs are working. Everything looks normal. Could I have done something to his cpu somehow? Or could something else be the problem? Any help would be appreciated.
 
Solution
I actually just got it working again. Turns out when he took out his Corsair Dominator RAM to show it off to me he accidently placed them in the wrong slot or something. I'm assuming that's what went wrong because I turned it off, switched the RAM to a different position and it started working again. Thanks for the help though!

Reyaz123

Admirable
There should be a 4 pin connector slot around the CPU location. Is it plugged in? many people forget to do this

You could also take out the CMOS battery for a few secs and put it back in. That should reset the bios settings
 

socklosk

Reputable
Nov 10, 2014
68
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4,640
My PC did the same thing twice. Everything tested fine.

Were you playing around in the Bios? Did you by any chance enable the Ultra Fast boot? I'm just guessing, but that was what I THINK happened to mine. After many, many power on resets, my computer finally posted. May the same thing happen to your friend's computer.
 

cleanshot911

Reputable
Oct 28, 2014
765
0
5,360
I actually just got it working again. Turns out when he took out his Corsair Dominator RAM to show it off to me he accidently placed them in the wrong slot or something. I'm assuming that's what went wrong because I turned it off, switched the RAM to a different position and it started working again. Thanks for the help though!
 
Solution