Question I finished my first build a couple days ago, but I can't get an output to my monitorWhenever I attempt a boot, every light and fan turns on, the CPU

Jan 30, 2025
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I finished my first build a couple days ago, but I can't get an output to my monitor
Whenever I attempt a boot, every light and fan turns on, the CPU led flashes and off once, then the VGA on and off, then the boot led turns on and stays on
I've tested the monitor with two different HDMI cables, they all work fine
I've taken apart and rebuilt the thing twice, there's no visible damage to any hardware and everything should be in place
There's a few forums with similar problems, none of which reach an answer

Ryzen 3600 MSI a520m a pro 16gb ram 512 SSD nvme Kingston 550w thermalright rx 580 arez
My monitor works fine with My ps4 but No it does No posts
haven Trier to use THE displayport om THE monitor bit Still nothing
Please help me
 
Last edited:
Update your post to include full system hardware specs and OS information.

Include PSU: make, model, wattage, age, condition (new, refurbished, used)?

Disk drive(s): make, model, capacity, how full?

Make and model monitor? Does the monitor work with other computers?

Other attached peripherals?
 
1. What are the system specs?
2. Do you have onboard video you can connect to?
3. If you are using a plug in video card, have you disabled the onboard gpu if it has one?
 
First builds are fun.

Have you downloaded the motherboard manual from MSI. It’s a good instruction for building.

https://download-2.msi.com/archive/mnu_exe/mb/B550MPRO_A520MPRO.pdf


Check to see only the needed stand offs are fitted in the case. There is a drawing in the manual that shows which you need.

Check to see that all the necessary power connectors are made, the long ATX power connector and the smaller CPU power connector, it’s near the backplate stuff on the top edge of the board.

This assumes a decent PSU in the range of 500 to 600W (for this build more is unnecessary)and a good brand name.

So following on from there. The motherboard has 4 led lights on the right hand edge, furthest from the back panel connector. They are for easy debugging. See page 37 of the manual linked above.

What do they show?
 
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