Firmware dump for an IPMSB-H61 desktop mainboard, designated PEGA, sized for a 4 MB SPI flash per the name, delivered as a 1.67 MB RAR archive. PEGA most likely refers to Pegatron as board manufacturer, a common ODM for OEM desktops using IPMSB-style boards. A technician would program it into the BIOS chip to recover a board with corrupted firmware. Check that the board marking matches and that a 4 MB chip is fitted, since images built for 8 MB parts are not interchangeable, and back up the chip first.
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.
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 →