i5 3570k / ASUS P8Z77 going senile / occasional fail to boot

[supermattboxio]

Alright,

While i'd consider myself relatively experienced, this one has me stumped. For an old rig it's still surprisingly capable, and has been rock solid since I first built it.

 

Sometime it boots normally.

Sometimes it hangs during Windows boot splash screen.

Sometimes it halts at a command-prompt error message similar to "cannot read boot device" when it doesn't boot (obviously not seeing the SSD).

 

UEFI BIOS *sometimes* does not list the SSD boot device.

 

Specs:

Intel i5 3570K

Asus P8Z77-V

16GB Corsair Vengence DDR3

Kingston 240GB SATA SSD SV300S37A240G

Win 10 Pro x64

Nvidia GTX970

 

 

I've already done:

- ASUS auto-throttle/overclock set to OFF.

- SSD health check (using SSD manufacturers utility). 100% Green.
- MBR check / rebuild etc.

- Windows checked updated & checked for errors.

 

I'm gonna do these next:

- Check all SATA ports (yes it's that old)
- Change BIOS battery

 

So I guess my question is this; what else can I do about it? Do I have a dying board / BIOS CMOS?

 

[Digideath]

4 minutes ago, supermattboxio said:

Alright,

While i'd consider myself relatively experienced, this one has me stumped. For an old rig it's still surprisingly capable, and has been rock solid since I first built it.

Sometime it boots normally, sometimes it halts at a command-prompt error message similar to "cannot read boot device" when it doesn't boot (obviously not seeing the SSD).

UEFI BIOS *sometimes* does not list the SSD boot device.

 

Specs:

Intel i5 3570K

Asus P8Z77-V

16GB Corsair Vengence DDR3

Kingston 240GB SATA SSD SV300S37A240G

Win 10 Pro x64

Nvidia GTX970

 

 

I've already done:

- ASUS auto-throttle/overclock set to OFF.

- SSD health check (using SSD manufacturers utility). 100% Green.
- MBR check / rebuild etc.

- Windows checked updated & checked for errors.

 

I'm gonna do these next:

- Check all SATA ports (yes it's that old)
- Change BIOS battery

 

So I guess my question is this; what else can I do about it? Do I have a dying board / BIOS CMOS?

 

 

I dont know. I'm having a similar problem myself. I have a new nvme ssd that doesnt always show when my system posts. But if I hit the reset switch, it suddenly shows up and starts working again.

 

Have you tried putting the ssd in a different port yet? Does that help any?

[supermattboxio]

On 4/24/2021 at 12:37 PM, Digideath said:

 

I dont know. I'm having a similar problem myself. I have a new nvme ssd that doesnt always show when my system posts. But if I hit the reset switch, it suddenly shows up and starts working again.

 

Have you tried putting the ssd in a different port yet? Does that help any?

Alright, so I finally replaced the BIOS CMOS CR2032 battery. No further issues.

I'd say that even if your machine is only a couple of years old, it's worth trying that first.

[freeagent]

I have a P8Z77-V that will not see any storage device that gets connected to it.. I wonder if it is something as silly as a battery

 

It is the only thing I didn't try..