DOS ain't dead

off topic, but maybe helpful for computer hobbyists (Announce)

posted by fritz.mueller , Munich, Germany, 03.09.2023, 13:56

Just to clarify, the machine was really dead:
- no bootup beep,
- monitor was black, no blinking cursor, nothing, only fan worked,
- adding a BIOS reset jumper for a few seconds only stopped the fans, nothing else,
- no Dual BIOS option (at least I found none)
- replacing the whole removable hardware (HD, RAM, graphics card etc.) by known good hardware changed nothing.

Manual only says the following:
18) QFLASH_PLUS (Q-Flash Plus Button)
Q-Flash Plus allows you to update the BIOS when your system is off (S5 shutdown state). Save the latest
BIOS on a USB thumb drive and plug it into the Q-Flash Plus port, and then you can now flash the BIOS
automatically by simply pressing the Q-Flash Plus button. The QFLED will flash when the BIOS matching
and flashing activities start and will stop flashing when the main BIOS flashing is complete.
see: https://download.gigabyte.com/FileList/Manual/mb_manual_b550m-ds3h-ac_e_1401.pdf
Thats all.
If you have a closer look in internet you will find articles that say that the Q-Flash port is a white marked USB port on the mainboard.

Complete thread:

• off topic, but maybe helpful for computer hobbyists - fritz.mueller, 01.09.2023, 14:07 (Announce)
  • off topic, but maybe helpful for computer hobbyists - dggionco, 02.09.2023, 16:00
    • off topic, but maybe helpful for computer hobbyists - boeckmann, 02.09.2023, 19:36
  • off topic, but maybe helpful for computer hobbyists - RayeR, 02.09.2023, 21:02
  • off topic, but maybe helpful for computer hobbyists - DosWorld, 02.09.2023, 23:48
    • off topic, but maybe helpful for computer hobbyists - fritz.mueller, 03.09.2023, 13:56