Question PC won't post the first time after power loss, while its OFF

[Kreskova]

Hello,

Specs:
CPU: Ryzen 7900x
GPU: Sapphire 7900 XTX
MOBO: TUF x670 Plus (no wifi)
RAM: gSkill Trideent NEO 6000mhz 2x16 GB
STORAGE: Kongston KC3000 1TB
PSU: 1200W Seasonic Vertex ATX 3.0

Issue:

Each time I unplug my pc from the outlet, or ehile having a power outage while the PC is OFF, it won't post the first time I turn it on, CPU led is red.

It will post aflter flipping the switch off/on on the PSU, but then I need to into Bios and re-save it (there are no changes) before restsrting again and booting into winfows.

I've had this issue since I got it as far as I remember.

Bios is up to date, no OC, only UV, but foes the same without.
Mobo batter is fine, its not resseting the settings I have.

No issues other than this, which only happen after power loss, while its off or when I tske it apart for a clean-up.

Any ideas?

 

[helpstar]

check the ssd with the kingston ssd manager
update the firmware of the ssd if available

try a different m.2 slot

 

[LinuxDevice]

I will add that when power goes off completely, then the CMOS battery is used to back up the CMOS settings for BIOS/UEFI. Possibly the battery is low, but I doubt it in this case. Still, it might be worth replacing that button battery if it is old (the battery itself can be installed and in a motherboard or on a factory shelf for a couple of years before you ever get a brand new motherboard). It is cheap to test that.

Reasons why this might still be the issue, but why the odds are low that it is, is that you didn't say you had to reset BIOS each time. An interesting test would be to set the system time correctly (just go into BIOS, don't boot to Windows or any o/s as it can use networking to update the time). Maybe check any customized entry as well. Turn the PC off, unplug it, hold the power button on for maybe 10 seconds to discharge any capacitor, and wait for maybe an hour; then plug the computer back in. Boot straight to BIOS, don't go to any o/s. Check if the time and anything else that might be customized is unchanged (well, time changes, but it should properly track time). If anything is suspiciously changed by too much, then you might have a low battery.

 

[Misgar]

Two thoughts:
1). Disable Windows Fast Startup if enabled.
https://www.windowscentral.com/soft...-enable-or-disable-fast-startup-on-windows-11
2). Set RAM back to JEDEC 4800MT/s, if running XMP at 6000MT/s.

 

[Kreskova]

Two thoughts:
1). Disable Windows Fast Startup if enabled.
https://www.windowscentral.com/soft...-enable-or-disable-fast-startup-on-windows-11
2). Set RAM back to JEDEC 4800MT/s, if running XMP at 6000MT/s.

I was suspecting some windows related BS, hence why I made this post.
The Fast Start-up option was not even visible, I needed to add the ky via registry, to make it visible.
It seems that this fixed my issues, thank you Sir!

Bought the rams becase they can be set to XMP Tweaked in BIOS, as they were tweaked specifically for the type of Mobo I bought, setting them to 4800 will deafeat their purpose.

 

[Kreskova]

I will add that when power goes off completely, then the CMOS battery is used to back up the CMOS settings for BIOS/UEFI. Possibly the battery is low, but I doubt it in this case. Still, it might be worth replacing that button battery if it is old (the battery itself can be installed and in a motherboard or on a factory shelf for a couple of years before you ever get a brand new motherboard). It is cheap to test that.

Reasons why this might still be the issue, but why the odds are low that it is, is that you didn't say you had to reset BIOS each time. An interesting test would be to set the system time correctly (just go into BIOS, don't boot to Windows or any o/s as it can use networking to update the time). Maybe check any customized entry as well. Turn the PC off, unplug it, hold the power button on for maybe 10 seconds to discharge any capacitor, and wait for maybe an hour; then plug the computer back in. Boot straight to BIOS, don't go to any o/s. Check if the time and anything else that might be customized is unchanged (well, time changes, but it should properly track time). If anything is suspiciously changed by too much, then you might have a low battery.

I did replace the battery a couple of months ago as I bought a pack of Verbatim for other stuff, and said "why not" to myself.
The issue seems to have been windows "Fast Boot", I didn't even had that option visible.

Thank you!

 

[Kreskova]

check the ssd with the kingston ssd manager
update the firmware of the ssd if available

try a different m.2 slot

https://imgur.com/6eVITus

View: https://imgur.com/6eVITus


Drive is fine, I did have a firmware update, which was released in August, the reason why I skipped this is because I reisntalled my OS several times since August and haven't bothered intalling Kingston's ssd manager.

This issue was way before this firmware update, I had it since I made my build last year.
Swaping slots is painful, as I need to take my Sapphire off, which means I need to dismantle half of the case just to reach the other 3 m2 slots...

https://imgur.com/eCun06z

View: https://imgur.com/eCun06z


I am grateful that, apparently Windows's "Fast Boot" was the problem, I did not even noticed it as it was not even visible, I needed to add it via registry, but disabling that seems to have fixed my boot issues.

If the issue persists, I will swap it around when doing some "spring cleaning".

Thank you!

 

[LinuxDevice]

I personally always disable fast boot. I like to see what is going on in case something is changing, and those short few seconds don't really matter to me. Also, I dual boot, and I always manually pick the o/s anyway.

 

[Misgar]

The Fast Start-up option was not even visible, I needed to add the ky via registry, to make it visible.
It seems that this fixed my issues, thank you Sir!

Glad to be of help.

Bought the rams becase they can be set to XMP Tweaked in BIOS, as they were tweaked specifically for the type of Mobo I bought, setting them to 4800 will deafeat their purpose.

Yes, I quite understand you bought DDR5-6000 for the extra speed, but some AMD CPU/Mobo/RAM combinations can become unstable when XMP is enable. Temporariy switching back to DDR5-4800 can get things working again. If memory overclock is unstable, you then need to "fine tune" Intel XMP or AMD EXPO settings manually, to get best performance. Relaxing XMP CL (CAS) timings by 1 or 2 cycles (increase value) sometimes works wonders.

I personally always disable fast boot. I like to see what is going on in case something is changing, and those short few seconds don't really matter to me. Also, I dual boot, and I always manually pick the o/s anyway.

It took me years to work out what was going wrong with my dual/triple boot systems using Windows 98/XP/7. When rebooting into a different OS, CHKDSK would spend ages running on all my hard disks. One day whilst messing about in the BIOS, I discovered that Fast Boot was to blame. Very annoying.