monitor not detecting the signal from newly build pc

[notknowmuch10]

Good morning everyone. Yesterday I built a new PC, connected it to my monitor and the monitor shows "no signal detected". When I plug the monitor to my old laptop, it works perfectly fine. The new PC has still no OS installed as I was planning to install PopOS. I connected it using HDMI-HDMI cable. I even tried to connect the new PC to a tv, still without success. There's no dedicated graphic card, so there's no vga slot. Everything seems to be connected fine. The fans start spinning, lights go on. What could be the issue here?

 

[notknowmuch10]

Hi and welcome.


List your pc spec please ?

AMD Ryzen 9 7900 5.4GHz
TeamGroup Vulcan EXPO 32GB DDR5
MSI Pro B650M-A WiFi
Samsung 980Pro PCIe4.0 NVMe M.2 SSD

Seasonic Focus GX-650 650W 80 Gold

Monitor BenQ GL2480

 

[notknowmuch10]

Intel CPUs with a F suffix do not have a video chipset, nor do Ryzen CPUs prior to the 7000 series unless they have a G suffix.

I've got Ryzen 9 7900. It says it has built in graphics.

 

[notknowmuch10]

Have you tried another hdmi cable ora display port to hdmi cable ?

I don't have a display port to hdmi cable, I'll order one today (they didn't have it in any of my local shops). I tried different hdmi cable and even different display (tv). No signal.

 

[notknowmuch10]

Guys, when you look at debug LEDs on a motherboard, should they be on or off? I.e. when they are on it means there's a problem or when they are off?

 

[notknowmuch10]

Debug LEDs just run threw the boot process and then go off if there stuck on a light it indicates a problem.

EZ Debug LED Lights On Motherboards Significance

Confused by the EZ Debug LED on your motherboard? Learn how the LED lights pinpoint boot-up issues like CPU, RAM, or VGA problems. Fix your PC faster with EZ Debug LED!

www.electronicshub.org

Then I messed up the build. The CPU and DRAM are on. I hope I didn't bend the CPU pins...

 

[notknowmuch10]

The pins seem fine. I took the cooler off, get rid of one RAM stick. Still the same issue. I think the CPU is getting the power since it's getting hot after turning the pc on.

 

[notknowmuch10]

Try a stick of memory in each slot but wait 5 minutes to boot each time as the motherboard will be trying to train the memory.

This is common on Ryzen.

IT'S ALIVE!!! Thank you soooooo much, folks! I need to run some errands, but when I'm back in the afternoon, I'll attempt to install the system.

Once, again, huge THANK YOU to all of you!
mickyflinn, you were right, I guess at first the RAMs weren't pinned properly and later I just wasn't patient enough.

 

[notknowmuch10]

Quick update: everything seems fine now. I've just installed the system. Even WiFi has worked straight away. Lesson learned: patience!
Problem solved. Thank you guys for your help. Best wishes!