Schematic in PDF form for HP 400 series hardware built on the Quanta X93A platform, code name Pitt, at revision 1A, packed inside a RAR archive of 841 KB. Quanta designs carry a short project code like X93A, which also appears in the DA-style board number etched on the PCB. The diagram helps trace voltage rails, locate power-sequencing circuits and check signals around the charger, CPU and memory. Confirm the board code and revision on the motherboard match before relying on component values.
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 (3)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @schematicslaptop | 28 Jan 2023 | Open file on RM Schematics |
| @cyberlanelectonik | 16 Jul 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.