Repair archive for the ECS Q45T-AS board at revision 1.0, 1.16 MB in RAR format. Beyond the model and revision the name gives no detail, so extract it and check what each file is before working from it. A schematic of this kind is handy for following the ATX standby rail, the CPU VRM and the memory voltage circuitry, and for locating the parts behind a no-power fault. If a BIOS dump is included, compare its size with the flash chip and keep a backup of the original contents.
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 @IT_SERVICE_WORLD. 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.