The А4000 Service Addendum supplements the А4000 User's Guide. This addendum provides the following information:

• Listing of general system features
• Pointers to specific information about the system
• Explanation of the POST test diagnostics
• Jumper settings not described in the A4000 User's Guide
• Instructions for replacing the motherboard and power supply
• Bill of Materials
• System specifications
• System schematics