Hot flashing: using another - working - board to flash the EEPROM chip of a dead board.
It's a bit controversial as you theoretically risk the working board if you mess up (short circuit either by dropping the EEPROM or incorrect orientation in the socket), but if you don't have an EEPROM flasher it's a potentially useful recovery method.
Basically you boot the working board, then when it's running (and so doesn't need to access the BIOS EEPROM anymore), remove the board's own EEPROM and replace with the EEPROM for the dead board. Then flash with a flash tool that doesn't contain safety protocols to be sure you only flash the correct board (i.e. Uniflash). After succesful flashing, power down the system, swap the board's own EEPROM back and put the flashed EEPROM in the dead board. The only requirements are that the EEPROM for the dead board needs to be supported by the donor board (i.e. not too big) and that Uniflash needs to work on the donor board (usually not a problem with either low-end or server boards, frequently doesn't work on high-end consumer boards, i.e. anything by Asus).
I've done it extensively and screwed up exactly once, by putting the EEPROM in the wrong way round. Don't do that. Check keying of socket and EEPROM, double-check again before inserting. But once again, an EEPROM flasher is a much better idea - if you have one.