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No display from pc to monitor

529 Views 14 Replies 3 Participants Last post by crjdriver, Dec 9, 2020

M1N3

Discussion Starter · Dec 9, 2020

My wife's computer no longer puts out to any display.

I've tried brand new hdmi / the display cable from my pc with her computer, no changes.

Switched my monitor with hers, still nothing.

Switched GPU with her, (hers is a 1060, mine is a 1080) still no changes. Yet her gpu worked fine in my PC.

Unplugged everything in her pc and replugged it in just to make sure everything was seated correctly.

I tried swapping her RAM as well.

Also, even plugging an hdmi into her mobo directly with no gpu in the computer, still no display.

I'm sure I've narrowed the potential issues down to its either her Mobo or her CPU... which I can't swap with my parts because she has AMD and I'm running Intel

Everything else of hers works in my PC though and with my monitors.

Her monitor picks up when I unplug her hdmi from gpu and replug into the mobo though because it turns itself on, but then shows the "no display" on screen before turning back off.

Any suggestions of something to try before I go buy a new AMD mobo / cpu? And yes I powered the PC's down and unplugged them between every change that wasn't just an hdmi cable.

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Gr3iz

· #2 · Dec 9, 2020

Hello and welcome to TSG!!

Have you ruled out the power supply? You can substitute yours without actually installing it, if the wires will reach.

If you are convinced it is motherboard or CPU, I'd guess motherboard. CPUs, unless mistreated either physically or electrically, seldom go bad. At least not nearly as frequently as motherboards.

M1N3

Discussion Starter · #3 · Dec 9, 2020

Gr3iz said:
Hello and welcome to TSG!!

Have you ruled out the power supply? You can substitute yours without actually installing it, if the wires will reach.

If you are convinced it is motherboard or CPU, I'd guess motherboard. CPUs, unless mistreated either physically or electrically, seldom go bad. At least not nearly as frequently as motherboards.

I have her pc torn apart right now so ill test out the PSU and get back to you.

I took out her mobo to make sure nothing could be shorting out and so I could inspect the board for any obvious damage, but there is none, and her cpu hasn't been touched either

Gr3iz

· #4 · Dec 9, 2020

Are these name brand systems? Or home built? I guess more specifically hers ...

M1N3

Discussion Starter · #5 · Dec 9, 2020

I built hers first a few years ago, back when it was mine.

Then I built a new one and took the 1080 out of hers, to put into my new build, I gave hers a 1060 replacement. And then I gave her the pc, which was working for about a year and a half before these issues

Gr3iz

· #6 · Dec 9, 2020

If you are still having issues after trying the power supply, please run the Tech Guy system information utility. This will provide some info on the hardware that may assist in troubleshooting.

crjdriver

· #7 · Dec 9, 2020

M1N3 said:
I have her pc torn apart right now so ill test out the PSU and get back to you

Unless your pw supply tester has the ability to apply a load to the unit, the test is pretty much worthless. The best way to test a pw supply is to swap in a known working unit.

M1N3

Discussion Starter · #8 · Dec 9, 2020

Gr3iz said:
If you are still having issues after trying the power supply, please run the Tech Guy system information utility. This will provide some info on the hardware that may assist in troubleshooting.

Is that a software to run on her PC? If so.... how am I supposed to run it when I can't get any display to work with her pc?

M1N3

Discussion Starter · #9 · Dec 9, 2020

crjdriver said:
Unless your pw supply tester has the ability to apply a load to the unit, the test is pretty much worthless. The best way to test a pw supply is to swap in a known working unit.

I'm taking her PSU and putting it into my pc to make sure it works, since my pc has no issues.

I've been using my pc as the constant here and replacing with one of her parts at a time to make sure her parts are working

Gr3iz

· #10 · Dec 9, 2020

M1N3 said:
Is that a software to run on her PC? If so.... how am I supposed to run it when I can't get any display to work with her pc?

Doh! Sorry, wasn't thinking ...

crjdriver

· #11 · Dec 9, 2020

M1N3 said:
I'm taking her PSU and putting it into my pc to make sure it works, since my pc has no issues.

I've been using my pc as the constant here and replacing with one of her parts at a time to make sure her parts are working

That will do fine. If your system boots with her pw supply, I would suspect first the motherboard, then ram, then the processor last. Generally processors are really pretty hard to hurt unless you overclock/overvolt them or physically damage them during installation.

M1N3

Discussion Starter · #12 · Dec 9, 2020

crjdriver said:
That will do fine. If your system boots with her pw supply, I would suspect first the motherboard, then ram, then the processor last. Generally processors are really pretty hard to hurt unless you overclock/overvolt them or physically damage them during installation.

Yeah we have never done any overclocking or messing with cpu at all, and her 2 ram sticks work in my pc, she has a Prime x-370-pro motherboard and also we are not getting any error beeps either

M1N3

Discussion Starter · #13 · Dec 9, 2020

Our power supplies are different and mine has an undetachable 24-pin so I have to undo all of her cable management now too....

M1N3

Discussion Starter · #14 · Dec 9, 2020 (Edited)

Okay so i replaced my PSU with hers and now I can't even power my PC on

Which is weird because her pc fans turned on and everything and her RGB kicked on with this PSU

crjdriver

· #15 · Dec 9, 2020

When you install the pw supply from the problem system, just connect atx, aux/cpu pw, and video pw. You do not have to connect anything else. Hit the ON button and see if the motherboard will complete POST. If not, then you have a pw supply that has failed.

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