long beeps after BIOS update

[punter]

This is a new PC. The model is M7010 power. It worked well this morning.

I did a few tweaks in UEFI today. Disabled all SATA ports (all of them appeared as Not Installed). Enabled BIOS auto update however disabled regular (daily / weekly etc) checks for newer versions.

Then started Windows and began to update drivers and BIOS using Fujitsu DeskUpdate.

Selected all the available updates, then clicked OK to reboot PC. After the PC rebooted, BIOS upgrade status (in percent) appeared. I went away from the PC, so I did not see, what did appear on the screen after that.

Soon after this, the PC rebooted, then long beeps began to sound at regular intervals. The screen was blank. I turned off the PC.

Now whenever the PC is powered on, the long regular beeps resume.

How can this PC be brought back to life?

[Ask Fujitsu]

Hello!

Thank you for contacting Fujitsu!

Please provide the serial number of the affected device.

Best regards,
Fujitsu Forum Support

[punter]

Thank you for replying. I did not receive (or did not notice) a notification about your reply.

I contacted Fujitsu support.

BIOS reset did not help. The graphics card and memory modules were without fault.

The PC was fixed by an authorised repair centre. I understood that they replaced the main board.

Warranty proved its value.