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Display issue (self.buildapc)

submitted 10 months ago by Lime66 to c/buildapc

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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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[–] Lime66 1 points 10 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 10 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.

[–] Lime66 2 points 10 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

[–] Lime66 2 points 10 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 10 months ago* (last edited 10 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.

[–] Lime66 2 points 10 months ago (1 children)

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

[–] Exulion 1 points 10 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.

[–] Lime66 1 points 10 months ago (1 children)

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

[–] Exulion 2 points 10 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.

[–] Lime66 1 points 10 months ago

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

[–] Exulion 3 points 10 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?

[–] Lime66 1 points 10 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

[–] Exulion 1 points 10 months ago* (last edited 10 months ago) (1 children)

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

[–] Lime66 1 points 10 months ago (1 children)

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

[–] Exulion 1 points 10 months ago (1 children)

Did that happen to work for you?

[–] Lime66 1 points 10 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

[–] Exulion 1 points 10 months ago (1 children)

Got a parts list?

[–] Lime66 2 points 10 months ago

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