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3-11
Compaq ProLiant 5000 Servers Reference Guide
Writer: Compaq Project: Installing the Compaq ProLiant 5000R Server Comments:
File Name: G-ch3.doc Last Saved On: 4/18/97 5:14 PM
Figure 3-7 shows the difference between PCI, EISA and ISA expansion
board connectors.
Figure 3- 7. Identifying I/O expansion boards by connectors
Table 3-1
I/O Expansion Board Identifiers
Component
Identifiers
ISA board
Single row of contacts; major components are on the other
side of board as shown
EISA board
Double row of contacts; major components are on the other
side of board as shown
PCI board
Single row of contacts closer together; major components
visible as shown; board is attached to other side of
mounting plate vs. ISA or EISA board
Expansion Board Considerations
ProLiant 5000R servers have dual PCI buses. The EISA bus utilizes a PCI
bridge on the I/O board. Use of an EISA device will impact PCI traffic on the
primary PCI bus. EISA device efficiency will be lower. See Chapter 4,
“Performance Advantages of ProLiant 5000 Architecture.”
