POST cycling
POST cycling
A few days back my computer began restarting without any warning. After some troubleshooting, I thought a failing power supply might be the issue because it was around five years old, so I replaced it. Once everything was connected, it kept POSTing endlessly. It would go through all the debug lights, sometimes allowed me into BIOS and occasionally even managed to boot, but rarely started properly. During this process I changed the CMOS battery, unplugged the HDD (not the boot drive, which is NVME), updated the BIOS, erased the boot drive using ASUS Secure Erase in BIOS, and cleaned up the Windows installation. After finishing, the system would normally reboot to complete the install, but then it started POST cycling again and the Windows wouldn’t appear. Before this, the PC had been working perfectly for over a year, which makes me believe the problem isn’t related to RAM, CPU, GPU placement or similar issues.
Any suggestions on how to resolve this?
Welcome to the forums, newcomer!
RAM: 2x 16gb gskill trident Z rgb (6400 mhz i believe, currently running at default 4800mhz)
Could you share a link to your RAM setup?
Motherboard: ASUS ROG Strix B650E-F gaming wifi
BIOS version for your motherboard?
While I was working on this, I changed the CMOS battery, unplugged the HDD (not the boot drive, which is NVME), updated the BIOS, erased the boot drive using ASUS Secure Erase in the BIOS, and cleaned up the Windows installation. After finishing, the system rebooted normally to complete the install, but then it started POST cycling again and Windows didn’t appear.
Did you recreate the bootable USB installer for your operating system to check for any corruption? You also mentioned installing the OS in offline mode.
Hey, this looks like the RAM kit you're referring to.
The BIOS version isn't clear, but it's the most recent one available. After flashing it, I downloaded the latest Windows installation media from the official site.
I set up a clean install on a USB drive, though I'm not sure what the offline mode does. Right now, since my PC isn't connected to Ethernet, it wasn't an online setup.
What I see is that the system boots into Windows but freezes with a blue screen or just stays on the Windows logo without doing anything. It also restarts automatically.