PC Won't Boot: Black Screen and Maximum Fan Speed Issues
Asked by
TechieNerd123
Hi folks, I need some assistance with my computer. Out of nowhere, it has lost display signal (both HDMI and DisplayPort) and is completely unresponsive now. Here's the rundown:
- My monitor shows a "No Signal" message, whether I connect to the GPU or the motherboard ports.
- All the fans are cranked up to maximum speed and won't let up.
- The power button on my case is unresponsive—I can't turn the system off even by holding it down.
Here's what I've tried:
- Performing a CMOS reset by removing the battery for over 5 minutes.
- Power cycling the PSU.
- Yet, the PC still boots into this odd "Max Fan/No Signal" state, and the power button doesn't respond.
My specs are:
- OS: Windows 11 Pro
- CPU: AMD Ryzen 7 9800X3D
- GPU: XFX Quick Silver AMD Radeon RX 9070 XT
- Motherboard: ASUS Prime X870-P (AM5)
- RAM: 32GB Corsair Vengeance DDR5 6000MHz
- PSU: Silver Stone Hela 850R Platinum
Has anyone faced this issue, particularly with the X870 platform? Could this indicate BIOS corruption or maybe a conflict between the 9800X3D and the 9070 XT? Any advice would be very helpful!
Answers
This sounds like a classic case of AM5 memory training. Sometimes, it helps to just leave it running in that state for about 15 minutes to see if it sorts itself out.
Reply to this answer
I have the same CPU and GPU combo, so I don't think that's the problem. Can you even get into the BIOS? Maybe try plugging into the motherboard to use the integrated graphics.
Reply to this answer
Have you thought about testing with just one RAM stick at a time to see if there's a memory issue? Also, double check that your CPU has enough power—make sure the 8-pin cable is properly connected to it.
TechieNerd123: I already tried each RAM stick individually in various slots, but it didn’t change anything. The 8-pin CPU power cable is definitely secure.
Reply to this answer
Add your answer
Answers are reviewed before publication.
TechieNerd123: Nope, I can't access the BIOS either. I tried connecting the HDMI/DP directly to the motherboard, but still, it's just No Signal and the fans are stuck at 100%.