Asus P8Z77-V LX Keeps loosing boot order ?

[tnx]

Hi, I have a little problem with my sons PC.

It's running an Asus P8Z77-V LX. It has one HDD and one optical drive.

I built it late 2012,around November time. Been running smotth up untill just now.

When the PC boots up it goes staright to the BIOS. I then see the boot order is set to the disk drive and not the HDD.
I set it up so it boot from HDD,works ok so I recon nothing up with the MBR.
When the PC is powered down and left the problem starts again...

The board is brand new.

I was wondewring if the CMOS battery is failing would this cause the problem ?

And if the CMOS battery was at fault could there be a fault on the board which discharging the battery ?

I have another asus mobo which i could rob the CMOS battery from..

Or is there summet else I should be looking into...

Any help or advice please..

 

[FallshirmjAEger]

It might be a bios issue. Have you updated to the latest bios version?

Just done a quick check on the asus downloads site. The latest version available for the P8Z77-V LX is 1502 released on 03/12/12.

 

[tnx]

It might be a bios issue. Have you updated to the latest bios version?

Just done a quick check on the asus downloads site. The latest version available for the P8Z77-V LX is 1502 released on 03/12/12.

No, I did not update the BIOS.

Would It be advisable ?

Off to download it now...

 

[tnx]

Just downloaded the lates BIOS version.

Loaded it onto a USB stick,booted up into the BIOS,the version was old,0610.
Updated the BIOS using EZ tool or what ever they call ( within the BIOS Tools )

It booted up nicely. Powered it down. Booted into BIOS and set defaults,saved and exited.

It then booted into Windows nicely.

Hoping that this was the problem and easily fixed.

Cheers...