RAR package for the Gigabyte GA-8PE667 motherboard, revision 1.0, at 644 KB. It covers the base model rather than the Ultra or Ultra2 versions, so check the exact model name and revision on the PCB before use. The name gives no list of contents; schematic pages are the usual payload in packages of this size. They help with measuring the CPU VRM output, memory and AGP supplies, checking the 5V standby line and following the ATX power switch circuit when a board stays dead.
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.