this post was submitted on 11 Feb 2024
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I finished building my PC recently. when I turn on the monitor when the computer isn't on, there's obviously no signal and I see the bouncing logo, but when the computer is on, it says that there is no signal, and that my monitor is going into standby mode, and the display turns off. my gpu seems to be working fine, and I reseated my ram. What should I do?

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[–] [email protected] 6 points 9 months ago* (last edited 9 months ago) (2 children)

Have you let your computer just sit there running for a few minutes? It might just need to memory train.

Do you get any error codes or beeps from the motherboard?

Does your CPU have onboard graphics you could try?

Make sure the monitor is on the correct input, even though they should auto switch it doesn't hurt to check.

[–] [email protected] 1 points 9 months ago (2 children)

How would I be able to hear the beeps? I can't exactly see an error code since I have no display

[–] [email protected] 5 points 9 months ago (2 children)

Does the motherboard have any LEDs? If you don't have a motherboard speaker, the motherboard sometimes shows LEDs to display an error code.

[–] [email protected] 2 points 9 months ago

The boot light turns on, which according to the manual means I don't have a boot device, which is weird since a) I'm trying to boot into bios, and b) I have a fedora USB plugged in

[–] [email protected] 2 points 9 months ago (1 children)

It does. I notice that the CPU light turns on briefly but turns off. Is that bad?

[–] [email protected] 5 points 9 months ago* (last edited 9 months ago) (1 children)

You should lookup your motherboard manual or something to see what the LEDs mean. From what you say here, it sounds like the POST might be failing due to the CPU. Maybe try reinserting the CPU.

It could also be that it posts but then it should display and let you get into the bios. So not sure. It's hard to diagnose without more info.

[–] [email protected] 2 points 9 months ago (1 children)

The light means that the CPU is not detected, but it turns off quickly

[–] [email protected] 1 points 9 months ago (1 children)

Try reseating your CPU, check the pins to make sure you didn't bend one. Taking some photos and zooming in can help you get a better look.

[–] [email protected] 1 points 9 months ago (1 children)

According to the manual all of the lights are supposed to turn on briefly.

[–] [email protected] 2 points 9 months ago (1 children)

Sorry got busy and work. Any luck? None of lights stay on?

If not I would just double check and reseat everything, and for shits and giggles pull the cmos battery for 30s and put it back, if you haven't already.

If nothing else works I would be thinking about RMAing the mobo.

[–] [email protected] 1 points 9 months ago

Only the boot light stays on even though I have a boot device. (And am trying to boot into bios)

[–] [email protected] 3 points 9 months ago (1 children)

If you can't hear anything does your motherboard have a display? Did it come with a little speaker? Look in your motherboards manual for the best way to get error signals.

Did you give your computer at least 5 min powered on though?

[–] [email protected] 1 points 9 months ago (1 children)

No i didn't, but my monitor shuts off every time it's connected to my computer so I can't wait that long

[–] [email protected] 1 points 9 months ago* (last edited 9 months ago) (1 children)

Your monitor doesn't matter just let the computer run for a few minutes then turn the monitor back on

[–] [email protected] 1 points 9 months ago (1 children)

Oh that's great, I'll see if it works

[–] [email protected] 1 points 9 months ago (1 children)

Did that happen to work for you?

[–] [email protected] 1 points 9 months ago (1 children)

No, still have no display and apparently have no boot device which is weird since I wrote fedora onto my usb drive

[–] [email protected] 1 points 9 months ago (1 children)
[–] [email protected] 2 points 9 months ago

MSI mpg b650 wifi ATX Sapphire pure 7800xt Amd ryzen 7600x 32gb Corsair vengeance ddr5

[–] [email protected] 1 points 9 months ago

I've done this multiple times and it's still