Compressed RAR package for the ECS 661FX SF2 desktop motherboard, revision 1.0, about 754 KB in size. The name does not list the contents, but ECS archives of this size usually hold a schematic or a BIOS image, so open it before assuming either. The 661FX label points to the SiS 661FX chipset family used on ECS boards of that period. Compare the revision printed on the PCB with the archive before tracing rails or flashing, since ECS changed layouts between revisions.
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 @pepeelectronica. Enginerys does not host this file.
All sources (5)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @pepeelectronica | 20 Apr 2022 | Open file on RM Schematics |
| @pepeelectronica | 21 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 | 23 Jul 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.