Technical data

Product Overview 1-11
1.6 Physical Configuration
A Model 400s system consists of three physical units:
• System unit
• Monitor
• Keyboard
This section describes each of the major units and lists the components present in the
system unit. (See Chapter 5 for the FRUs that make up these units and the FRU part
numbers, and a description of the removal and replacement procedures for these
FRUs.)
1.6.1 System Units
The system unit is available in three versions:
• Standard Model 400s systems have the following components:
– Power supply
– Motherboard with two DIO-II slots
– CPU board with attached emulator board and memory modules
– Graphics controller or interface board
– Mass storage devices
An optional HP-IB interface board may also be included.