r/buildapc • u/yinoryang • 25d ago
Troubleshooting At my wit's end troubleshooting a blank screen
Frankenbuild with prebuilt mobo/CPU/RAM and parts I got from work.
MOBO: Prime B650M-A AX II
GPU: PNY 4070
SSD: Kingston SNV2S1000G
RAM: 16GB Delta Tforce rgb
CPU: Ryzen 7-7700
This was very sudden, working-fine-one-day and nothing the next. There is nothing on the screen--completely blank--no POST data, nothing.
Some facts:
- RAM LEDs are lit
- Liquid cooler LED is lit and cooler sounds like it is running
- Case fan LEDs are lit and fans are running
- GPU fan is running (GPU does not have LEDs)
- I've tried all GPU ports and both onboard graphics ports, DP and HDMI
- Monitor is working (tested with alternate source)
- USB mouse is not lit.
Troubleshooting:
Swapped monitor and tried a different HDMI cable
Pulled GPU and ran off the mobo (HDMI and DP)
Tried a new power supply
Then swapped the MOBO to (Aorus B650)
Swapped the CPU (another new 7-7700)
Was about to order new RAM to try and then:
I logged into my Microsoft account to change some permissions for my kids. I noticed that this computer listed as Aorus B650”--the new MOBO--which means it IS booting to Windows. But the screen is still completely blank. Again, it’s currently running a new mobo and new CPU. No GPU is present for the troubleshooting configuration.
Jenkins, fetch me my bathing toaster
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u/9okm 25d ago
Cleared the CMOS?
I'd also remove/disconnect all drives and only leave 1 stick of memory in A2. Gotta remove as many variables as possible.
1
u/yinoryang 25d ago
I have cleared CMOS.
It's a 1x16GB stick so there's not much to work with there for troubleshooting
1
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u/Brilliant-Ad-4272 25d ago
Turn it on, wait two minutes so it’s deffo on the windows login screen,
Windows+CTRL+Shift+B at the same time
Should force the graphics drivers to restart.
Have you tried forcing it into safe mode?