Completely baffled

[Jboord44]

I'll keep this short. Bought compatible components a month ago and assembled the following rig:

 

asus ROG Strix z270E

I7-7700K

asus Strix 1080 ti 

32 GB corsair vengeance RAM

750 watt Corsair rmx 750 

250 GB Samsung 850 evo nvme m.2 

6 TB toshiba HDD

Phanteks Enthoo Evolv ATX 

Corsair h100i v2 AIO

 

Powered it on and it worked. Set up my bios. Installed windows. Installed some games. Played some games. Shut down for the night.

Next morning PC wouldn't produce video signal despite motherboard and GPU LED's lighting up and all fans spinning. Sent everything back.

 

Reordered the exact same list of components and assembled again last night. PC powered on yet again. Setup my bios, installed windows and started installing some games. Shut down the pc. 

 

This time when I turned it on, it said I had a DP signal but the screen was black with just a small horizontal white line toward the upper left quadrant of the screen. I force shut down a couple more times and same thing. Eventually, this stopped happening and now we are back to no signal to monitor, despite all LED's lighting and fans spinning.

 

Before I send everything back again, what could this be? I haven't tried resetting the cmos or bios or whatever yet, but does that ever actually work? The monitor and DP cable both work fine, I use them on my old pc perfectly. 

 

If anybody has any ideas I'm totally open. I find this weird though that the same components but totally new produce nearly identical results 2 builds in a row with all new parts. Baffles me but I'm not great with this stuff. 

 

[leg bouncer]

Are you sure they didn't resend you the same exact components ?

 

That's such a nice partlist and I feel bad for you man  check all your cabling, disassemble everything and go slowly, is your system connected directly to the wall or to a voltage regulator or something like that? My screen used to ocationally "flicker" everytime I scrolled or clicked on a YouTube video and it turns out my monitor wasn't getting stable power from the wall. Maybe that's happening to your GPU? Keep us posted.

[Thony]

Try a different GPU , Monitor and cable if possible. Would really suck if u went through all the trouble just because of a faulty cable

[Guest]

Have you made sure it isn't the monitor, can you maybe just try a different monitor on that PC and see how it goes?

 

It's very strange how it works for a day and then stops, I really can't believe that happened... and twice?!

 

If you've installed Windows in UEFI mode with CSM disabled, it could be that. My PC doesn't work right if CSM is disabled and experienced a wife variety of display issues.

 

Can you enter the BIOS or is it just a completely black screen with no POST? 

 

EDIT: And yes, reset CMOS using the button on the back of the IO shield, you will be amazed at what silly issues it can fix. 

[Jboord44]

It's def not the monitor or cable bc when this happens I always re-hook up my old pc and everything is fine. And it's def not the same exact components, I ordered everything from amazon and some new parts came before I even got to return the old ones. 

 

Im gonna try to reset cmos when I get home from work today. I'm hoping this is a simple fix or something but I am not sure. This is starting to seem like a lost cause. 

 

Thanks for the replies 

 

 

[AmateurPCGuy]

Did you check the version of DP that the monitor runs through? Cuz if that's not the case, I'm drawing blanks here...

[vaiwalker]

try with one stick of ram at a time

[bcguru9384]

i think windows failing to get the displays current profile during the boot process

be why it works pre windows install then fails

uefi of windows needs boot script to read/fetch display devices bios to be copied to gpu memory 

if your using dvi or hdmi then after booting unplug the cable from monitor wait for monitor to say no signal then plug back in as this should force a regrab of devices config files

if display port well............... i dont like display port.... 

if your gpu has both hdmi and display port it is very easy to confuse the gpu and get wrong config loaded

hdmi and dvi share same video pwm signals so are interchangeable

display port does not.

bios option to static set profile to use be awesome