Question Computer screen goes to no signal randomly

pcslookout · Apr 14, 2024

Out of the blue my whole computer monitor screen goes black then says no signal. Why? What could be the issue?

It can happen at any time.

Demanding and not demanding times.

Also my fans go really fast or spin really fast after the screen goes black and says no signal

I do you a pcie riser cable / extender for my gpu. Did read those can cause issues but never had it happen previously when using it.

DAPUNISHER · Apr 14, 2024

You know the drill; full system specs. I'd DDU the graphics drivers and install whichever version last worked properly if you can remember. If that doesn't fix it, remove the riser and see if it still happens.

Can't hurt to flash the latest bios. Reseat everything, and be ready to use a different PSU to troubleshoot it out.

pcslookout · Apr 14, 2024

DAPUNISHER said:
You know the drill; full system specs. I'd DDU the graphics drivers and install whichever version last worked properly if you can remember. If that doesn't fix it, remove the riser and see if it still happens.

How do I remove the riser if this is my case ?

https://www.newegg.com/p/N82E16811112559?Item=N82E16811112559

I would remove it but can not install the video card normally or horizontally in this case.

DAPUNISHER · Apr 14, 2024

Now you see why lising full system specs is so helpful.

pcslookout · Apr 14, 2024

Ok I could still hear a game on my computer after the computer screen goes to no signal randomly.

So thinking it is the video card or riser

Though right now after testing my old backup video card no issues so far.

VirtualLarry · Apr 14, 2024

It's probably the riser. Try setting your primary (x16) PCI-E slot to PCI-E 3.0 mode, or even PCI-E 2.0 mode.

pcslookout · Apr 14, 2024

I just found out the riser is Gen.1 x16 pcie

So is it still possible the riser?

The main video card is a RTX 4090 and I know this limits the speed a lot.

VirtualLarry · Apr 14, 2024

You need a Gen4-compliant riser. $$$

Or Gen3-compliant, $$, and limit your PCI-E speeds for your primary slot to PCI-E 3.0 in BIOS.

pcslookout · Apr 14, 2024

VirtualLarry said:
You need a Gen4-compliant riser. $$$

Or Gen3-compliant, $$, and limit your PCI-E speeds for your primary slot to PCI-E 3.0 in BIOS.

So it is guarantee the riser ?

VirtualLarry · Apr 14, 2024

pcslookout said:
So it is guarantee the riser ?

"guarantee" is a strong word, but I strongly believe that the issue is the riser, yes.

pcslookout · Apr 14, 2024

Must be because my case is so old.

Though it is weird how it works with pcie 1.0 fine for some time.

VirtualLarry · Apr 14, 2024

Just go into your BIOS and set your primary PCI-E slot to 1.0, see if it works for now.

Won't cost you any $$$, just 5 min of your time.

In2Photos · Apr 15, 2024

Have you tried a different video cable?

bba-tcg · Apr 15, 2024

pcslookout said:
How do I remove the riser if this is my case ?

https://www.newegg.com/p/N82E16811112559?Item=N82E16811112559

I would remove it but can not install the video card normally or horizontally in this case.

Looks like you'd have to try it with the motherboard outside the case....if you want to find out if it's the riser.

Question Computer screen goes to no signal randomly

pcslookout

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