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Question

No input out of the blue

Feb 9, 2020 2:36PM PST

Hi

So I was about to game, as you do, while doing a few things on the computer, when all of the sudden while I looked away my PC restarted, and my screen showed "no input" and went to sleep mode. Tried restarting a few times and replugging the cables, dedusting the insides and what not, with no luck getting that input signal to function. I was just wondering whether I need to buy a new HDMI cable? Probably, but if you know a hack, or if the issue is something different i'd appreciate your help

Discussion is locked

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Answer
Since it is HDMI
Feb 9, 2020 2:53PM PST

Try that monitor and cable to some other HDMI source.

If the cable and monitor work elsewhere, you turn your attention to the PC. Google up "The Dead PC" to learn the basics unless it's in warranty.

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RE: Since it is HDMI
Feb 10, 2020 9:15AM PST

Tried a different monitor, still no signal.
Tried buying new HDMI cable, no signal.
Tried connecting HDMI to motherboard, no signal. And all other combinations for that.

No warranty because i build it myself, but it’s been working well since i made it a couple years back.

Tried learning the basics for “Dead PC”. Can’t find the CMOS button on my Asus Z170M-plus motherboard. There’s only room for my GPU in one of the slots because of wires vs. the GPU size. Don’t know why i disassembled the PC to find that out. Didn’t need to, but do you know of anything else that might be relevant to check while im at it?

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I am left with generic advice for a few reasons.
Feb 10, 2020 9:56AM PST

We don't know what the PC is. Now we know someone made this one.
We do know how to test HDMI cable and monitors so with all the HDMI sources most folk have, we never buy a cable but may try this PC on another monitor or TV.

The Asus Z170M does not appear to have a CMOS button. Here's the manual:
https://www.asus.com/us/Motherboards/Z170M-PLUS/HelpDesk_Manual/

Page 1-12 of the English User Manual shows it's a jumper.

Keep in mind fixing a dead PC is not always possible via a forum as I'm not there to observe all and use a Volt meter or inspect the build.

The basics for The Dead PC even so remain the same. You try the usual resets then start downsizing the machine even to the point of trying just the motherboard, CPU and one stick of RAM on cardboard (plus a GPU if required) to see if these basic parts work. If they don't you've narrowed it down to these parts.

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Good news
Feb 11, 2020 10:04AM PST

Through taking out the CPU and GPU, then reinstalling the CPU, I found out it was the GPU giving me trouble.
It doesnt connect properly to the motherboard (won’t click on but receives power from the power supply shown in the LED lights on it).
So I will try making it connect without damaging anything in the small PC but won’t require further assistance. Thank you for your time and help Happy

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That should be
Feb 11, 2020 10:18AM PST

"Good News Everyone!"

Also, you've found the classic "Is it plugged in?" issue.

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Answer
Different cables
Feb 11, 2020 5:29PM PST

Have you tried using a different cord such as the VGA cable, the one you turn the screws to secure the cord? Try connecting your computer to a different monitor.

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RE
Feb 12, 2020 6:48AM PST

I would try that but all my spare tech stuff are at my parents’ house, so there’s a lot of things i wanted to test that im unable to.
Also i accidentally kicked my pc so now it wont post. it makes a choppy sound when i try. Another day at the workshop I guess

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Please folk. NEVER leave out a detail like that.
Feb 12, 2020 7:24AM PST

It would have me write about opening it up to reseat cards and such.

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It happened after the initial problem
Feb 13, 2020 3:37AM PST

Through a lot of struggles and completely taking apart my pc putting it back together and fixing here and there I can make all of it work except making the GPU connect to the motherboard and I don’t know how to fix it. Ive tried looking for answers but none really address the exact issue I’m experiencing. One says I should disable my motherboard graphics and restart but if that doesn’t work there’s no way to have any monitor I think. And the other was to heat the GPU in the oven but that would ruin my oven. So I’m left with discarding my GPU unless you have a solution

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Have you tried another GPU?
Feb 13, 2020 7:08AM PST

Mind you we have an office and shop which we keep a few spare but older GPUs for such tests but what tells you this GPU is good? You need a good GPU and another PC to test out what is going on.

As to no one addressing the exact issue, I have to disagree. What I do know is that for home repair you may not have all the parts needed to diagnose where the issue is. And some want a way of figuring it out without the parts and gear we have in the shop which may lead them to write that.

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RE
Feb 13, 2020 7:53AM PST

I get that. Makes sense taking it to a shop.

I will try going to a shop tomorrow to test if my GPU works and try giving an update once I’ve done that.

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It happened after the initial problem
Feb 13, 2020 3:37AM PST

Through a lot of struggles and completely taking apart my pc putting it back together and fixing here and there I can make all of it work except making the GPU connect to the motherboard and I don’t know how to fix it. Ive tried looking for answers but none really address the exact issue I’m experiencing. One says I should disable my motherboard graphics and restart but if that doesn’t work there’s no way to have any monitor I think. And the other was to heat the GPU in the oven but that would ruin my oven. So I’m left with discarding my GPU unless you have a solution