Refdisks for All Models

7552 
Common Devices 
Data Output BIOS 
Processor Card 
Resource Module 
DASD Module
Power Supply

7561/62
7561 (From Alfred Arnold)) 
Planar
Power

7568 Gearbox 800
Common Devices
Power
Processor Card
DASD Module 
System Resource
SRC Codes 
Mounting (not even near done) 

Documentation on Newer Models