BIOS for the Rocky Intel board, Wistron number 11243-1, with the label 48.4SI01.011, HM76 chipset and HP ProBook 4440S referenced, in a 3.60 MB RAR. The 48.4xxxx.0xx string is how Wistron marks the PCB part number on the board itself, making it a reliable check. Use the image to reprogram the SPI flash on a dead or locked board, after reading and storing the original contents. Confirm the chip size matches the image and that your board carries 11243-1.
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 (4)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 15 Jan 2022 | Open file on RM Schematics |
| @pepeelectronica | 27 Apr 2022 | Open file on RM Schematics |
| @schematics_bios | 26 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 3 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 →