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Gigabyte UEFI Bios

Slyrack Posted messages 4 Status Membre -  
Slyrack Posted messages 4 Status Membre -

Hello everyone

Gigabyte GA-Z77-D3H UEFI BIOS.

I really want to understand why, every time I restart the PC:

In the "Devices" menu of the BIOS – SATA selection mode, I always find myself in IDE instead of AHCI.

I re-select AHCI, save it, and the PC boots up normally.

I would think it's a bad Boot parameter since, after modifying it repeatedly, I haven't noted anything down. Although there are very few parameters that I have changed.

I have 4 drives in a case (1 SSD for the system - Win10 - and 3 SATA HDDs). All converted to GPT, hence my latest BIOS settings:

- Boot mode: UEFI Only

Storage boot option control: UEFI Only

If I set it to UEFI + LEGACY, it makes no difference!

That's not much information, but I don't know what else to add!

For info, Secure Boot is disabled. Grayed out and therefore inaccessible for now.

If anyone has an idea about this or a solution, I would gladly take it!

I read on the forum that it could be due to the battery?

I haven't done anything about that yet.

Thanks everyone

5 réponses

Réponse 1 / 5
fabul Posted messages 42085 Registration date   Status Modérateur Last intervention   6 031
 

Hello,

If, after disconnecting and reconnecting the power for 10 seconds, and then going directly to the BIOS without starting Windows, it no longer remembers the date and time, it's the CR2032 battery.
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Réponse 2 / 5
Slyrack Posted messages 4 Status Membre
 

Good evening fabul

I already replied to you via my smartphone and it's weird, I can't see the response??

Specifically, directly in the BIOS, all my settings are present in the system menu.

Voltage settings, frequencies, speeds, date and time, nothing has changed.

Of course, the battery is a certain number of years old, I will change it tomorrow. Moreover, it's easy to access.

If the problem is indeed there, I will come back to post the result.
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Réponse 3 / 5
fabul Posted messages 42085 Registration date   Status Modérateur Last intervention   6 031
 

If the battery is good, a Clear CMOS might help

Do a "Clear CMOS": Often the manual indicates how.

1. Disconnect the power supply.

2. Remove the CR2032 battery.

3. Check if you have a jumper on pins labeled CLR_CMOS or CLRTC

If it is there with 3 pins, move it to the other pins X X O > O X X for at least 10 seconds.

If you do not have it, simply short the two pins with a screwdriver or other metal object for at least 10 seconds to discharge the capacitors.

Sometimes shorting the two contacts of the battery holder may do the same thing.

4. Put the jumper back to where it was before, or stop shorting.

5. Reinsert the battery.

6. Reconnect the power supply.

7. Start the PC.

8. Reconfigure the BIOS
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Réponse 4 / 5
Slyrack Posted messages 4 Status Membre
 

According to my motherboard's documentation, there are indeed 2 jumpers to clear the CMOS. Next to the battery.

I will do this at the first opportunity, but first, I want to take a few photos of my current BIOS.

Thanks for the tips!
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Réponse 5 / 5
Slyrack Posted messages 4 Status Membre
 

Hello

Apparently, it’s working again, even after several disconnections of the power cable, but it wasn’t without pain!

Replaced the battery (2.85V on the old one - 9 years old), did a clear-CMOS and rebooted while saving the default settings. Result: Blue screen. System failed, reinstall Windows, error 0x......, I don't remember.

In reality, Windows had no problems but rather parameters to adjust in the BIOS. And even though I'm in UEFI and AHCI with disks in GPT, it reset several parameters with both UEFI AND Legacy that I hadn’t modified.

The error might have come from there. (or maybe from the slightly low voltage of the battery?).

Thanks a lot for your information.
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