Archive for the ECS P4M800PRO-M478 motherboard, revision 1.0, roughly 906 KB in RAR format. The name points to a VIA P4M800 Pro chipset board for Socket 478 Pentium 4 processors. Whether it contains a schematic or a BIOS image is not stated, so check the contents before relying on them. Schematics of such boards help locate the Vcore controller, memory supply and chipset rails during no-power or no-POST repairs, and firmware images restore a corrupted flash chip. Match the PCB revision and save the original chip data 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 @schematicslaptop. Enginerys does not host this file.
All sources (8)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @schematicslaptop | 29 Mar 2021 | Open file on RM Schematics |
| @pepeelectronica | 20 Apr 2022 | Open file on RM Schematics |
| @pepeelectronica | 25 Apr 2022 | Open file on RM Schematics |
| @cyberlanelectonik | 15 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 23 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 25 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 2 Aug 2026 | Open file on RM Schematics |
| @schematics_bios | 14 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.