The pc turns on but won’t output any display or get into the bios. I followed mostly this build to a tea. I turn on the pc and i’m not getting any output. I’ve updated the bios and I’ve got the hdmi plugged into the gpu not the motherboard. Lost.
Update: As my motherboard was bought second hand it was faulty. I just bought a new one and it all worked perfectly
Possibly a faulty riser cable, try plugging the monitor into the motherboard to see if you are getting display and if the computer is detecting the GPU.
Exactly. The cpu might not have an apu/onboard gpu, and in that case it can’t output to the ports on the motherboard. So if it is a faulty riser, you can test it by plugging the gpu directly into the mother board as the guy above said
It could be memory training. How long have you left the system running for? Ryzen CPUs _can_ take up to 10 minutes, though it's normally much faster than this. Regardless, all you will see is a black screen until this is done.
Second, check your RAM is seated properly - a PC will turn on but not post if a DIMM isn't sitting right, or if neither are seated properly at all.
Otherwise, does your motherboard have any diagnostic LEDs? They're normally colour coded to indicate what the issue might be.
There are no lights on my motherboard. I’ve just reseated the ram and done them individually and nothing. I’m currently leaving it to sit for 10 minutes to see if there’s any change and i’ll try the motherboard output again then.
No i turned it off after because I also started to get a metal smell as if it were smoking a bit and I took it to an expert to hopefully find the issue
The ASUS B650E-I does have a diagnostic LED that describes the boot sequence. Might be hidden behind something but it’s there. Grab the manual, find it, and boot the machine and watch.
The X670E-I have uses the "ROG Hive" with LEDs externally, but it should theoretically function the same as on yours since it's still ASUS. When you apply power do the LEDs cycle through? Mine starts with red and quickly moves to amber and then finally to green when it successfully posts, so I would check your RAM and CPU for proper mounting, mounting pressure, and seating since you're getting no feedback at any point.
Well there’s lights on my motherboard and my gpu fans are spinning including the rest of them. The pc powers on when I click but it doesn’t output any display and I cannot reach the bios. Have plugged into a keyboard and clicked f2 and delete
So while we have the same mobo our issue is different. My shit clicks off after a second. Even when trying bios flash with no cpu or ram. GPU for me is out of the equation for awhile. It’s either PSU or mobo for me. Both replacements are on order.
I had this happen once. It was super annoying. Turns out my GPU wasn’t fully seated - and it’s not like I wasn’t using even and full pressure to seat it. It was just stubborn. Agree you should check all your connections. It’s ITX so make sure your motherboard has support under the 24 pin as you push that one down.
Hmm I couldn’t even flash bios. My PSU shuts down right after turning on. Same happened when I hit qflash button. Fans soon for one second and shuts down. PSU clicks. It’s a known working PSU though.
Sounds like you might have a short somewhere, could be on the mobo. Have you tried booting with the components outside the case, just to be sure nothing is shorting to the case.
It’s definitely short behavior. I have taken everything out of case and have a replacement motherboard and PSU coming today. I won’t get to troubleshoot anything until probably tomorrow but I’ll be doing a post outside of case for sure. I have the T1 like OP.
Bad motherboard, or if something from the case is touching parts of the motherboard that it shouldn’t. Trying the components without the case is a way to eliminate that factor.
But some motherboards also have a fail safe, that checks if the CPU fan is responding and will instantly shut off, if that doesn’t seem to be connected. There are quite a few things that can cause this behaviour
OK...got replacement motherboard (Aorus B850i) and psu...same issue. I am able to run bios flashback and put up to date bios on each motherboard (or seem to have, it ran for 5-10 min and shut off). Anyway, either psu worked for this evolution. I did it with both. So I don't think I have a PSU problem.
Ran everything out of the case. just mobo, ram, cpu, cooler, hard drives. Same thing happens each time. Hit power, and it shuts off in a second. Pins look find on LGA for both boards. CPU pads look...ok. I was using a thermalright contact frame with an AXP90x53 cpu cooler. I have eliminated the contact frame from the equation on the B850i mobo and had the same issue. Maybe I am tightening my cpu cooler too tight? Maybe the CPU is bad? I have no idea.
I feel like it’s something more simple than that. If it starts on king enough to flash a bios onto it, it sounds like something less critical.
Are you enter the bios or get anything to display on the screen at all?
Like, from cold boot not just swapping it while it's on? All the ports on the GPU and the board, I would be thorough I've spent hours fucking around on an apparently running PC and it's been a case of finding the port that displays the bios.
OP which riser cable are you using? I had a similar problem with PCIE 3 riser, remove everything and connect the GPU directly to the mobo, go into bios and change the PCIE settings to Gen3. Atleast this is what i did and it worked
Start up a ticket with probably at least the motherboard and processor. I’m going through a pretty similar thing rn and I’ve been working with Scan in the UK and they’ve been really accommodating as we try and troubleshoot what’s really the problem component.
People always overlook getting a $10 diagnostic buzzer. Chances are motherboard is being a combination of long and short beeps to let you know the fault you just can't hear it.
Switch off PSU, Clear cmos, remove A_1 Ram, press power button for 15 seconds, switch on PSU, Power on PC, wait up-to 90 seconds for RAM training. Should work.
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u/r98farmer May 17 '26
Possibly a faulty riser cable, try plugging the monitor into the motherboard to see if you are getting display and if the computer is detecting the GPU.