BIOS dump for the Casper Excalibur G850 with the 7700 CPU variant, on an NL8K board revision D, in a 4.85 MB RAR. The token aday appears in the name but its meaning is unclear, so treat it as an uploader label. A technician would write this image to the SPI flash with a programmer to revive a dead or bricked board. Back up the original chip first, check the image matches the chip capacity, and verify the NL8K board and its revision before writing, as dumps from other revisions may fail to boot.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @biosarchive. Enginerys does not host this file.
All sources (9)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 20 Jul 2020 | Open file on RM Schematics |
| @laptexlaptopbios | 20 Jul 2020 | Open file on RM Schematics |
| @biositechyangiyer | 26 Jul 2020 | Open file on RM Schematics |
| @one5technology | 21 Nov 2020 | Open file on RM Schematics |
| @pepeelectronica | 24 Apr 2022 | Open file on RM Schematics |
| @biosdumpcomputer | 26 May 2022 | Open file on RM Schematics |
| @skclappybios | 10 Apr 2024 | Open file on RM Schematics |
| @schematics_bios | 24 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 1 Aug 2026 | Open file on RM Schematics |
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →