X670E PG Lightning no POST on cold boot

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   I'm having an issue with my ASRock X670E PG Lightning using the latest BIOS 3.40

I'm enable to boot with EXPO on, every time after the power supply has been turned off and back on. Completely cold boot.

I've been on 3.40 for the last 12 days no issues. However, last night I lost power in my house.

PC was off at the time. Tripplite surge protector. A-tier power supply... However, the PC wouldn't boot after that.

Fans on full. RAM and CPU red lights on. Gave it a few minutes, thinking memory training. Haven't had to deal with anything like that since 2023.

No good though. Not booting.

Reset BIOS. (Actually, reinstalled 3.40).. Good to go again. Set up my BIOS how I like it. EXPO on... etc.

Boots up. Ran stress tests. Gamed for an hour. No issues. Shut down, boot up. No issues.

Shut down, turn the power supply off and back on. PC won't boot again. Fans on full, RAM and CPU lights on. Not booting.

Shutdown. I replaced the CMOS battery. Repeat steps. Set up BIOS settings. Shutdown. Then shutdown and turned off power supply. Back on and won't boot.

Rolled back to 3.30. Set up bios. Shut down. Turned off power supply. Turned back on. Booted right back up.

Chances are in the last 12 days since 3.40 release on my motherboard, my power supply had never been turned off. Everything works fine, even under heavy stress. But as soon as the power goes out, I can't boot with 3.40.

It seems I'm not alone. I found a few others on reddit with this issue.

My RAM is TEAMGROUP T-Create Expert CL30 6000MHz. Could be related.

Cheers.

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BeerGogglesFTW Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 8 hours 35 minutes ago Status: Offline Points: 15	Post Options Post Reply Quote BeerGogglesFTW Report Post Thanks(0) Quote Reply Topic: X670E PG Lightning no POST on cold boot Posted: 8 hours 27 minutes ago at 9:24pm
	I'm having an issue with my ASRock X670E PG Lightning using the latest BIOS 3.40 I'm enable to boot with EXPO on, every time after the power supply has been turned off and back on. Completely cold boot. I've been on 3.40 for the last 12 days no issues. However, last night I lost power in my house. PC was off at the time. Tripplite surge protector. A-tier power supply... However, the PC wouldn't boot after that. Fans on full. RAM and CPU red lights on. Gave it a few minutes, thinking memory training. Haven't had to deal with anything like that since 2023. No good though. Not booting. Reset BIOS. (Actually, reinstalled 3.40).. Good to go again. Set up my BIOS how I like it. EXPO on... etc. Boots up. Ran stress tests. Gamed for an hour. No issues. Shut down, boot up. No issues. Shut down, turn the power supply off and back on. PC won't boot again. Fans on full, RAM and CPU lights on. Not booting. Shutdown. I replaced the CMOS battery. Repeat steps. Set up BIOS settings. Shutdown. Then shutdown and turned off power supply. Back on and won't boot. Rolled back to 3.30. Set up bios. Shut down. Turned off power supply. Turned back on. Booted right back up. Chances are in the last 12 days since 3.40 release on my motherboard, my power supply had never been turned off. Everything works fine, even under heavy stress. But as soon as the power goes out, I can't boot with 3.40. It seems I'm not alone. I found a few others on reddit with this issue. My RAM is TEAMGROUP T-Create Expert CL30 6000MHz. Could be related. Cheers.

Xaltar Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 16 May 2015 Location: Europe Status: Offline Points: 29733	Post Options Post Reply Quote Xaltar Report Post Thanks(0) Quote Reply Posted: 8 hours 14 minutes ago at 9:37pm
	Open a support ticket with ASRock. Unless it turns out to be a setting in the BIOS there isn't much anyone here on the forums can do to help. This will require ASRock's attention.