HP Vectra XA 6/xxx Service Handbook page 5

Ethernet 10/100 BaseT Network Connections
The 10/100 BT board has two RJ-45 UTP connectors, one for 10BaseT
networking (supporting remote power-on) and one for 100BT networking
(supporting remote wake up, but not remote power-on).
Ethernet 10/100 BaseT network board
Warning
If the the Ethernet Interface section does not appear in Setup
(for example when replacing the system board), proceed as
follows:
Switch off the PC.
Set the system board switch 9 to closed (clears the product identification
field) and ensure that the Ethernet Interface is properly plugged in.
Switch on the PC to clear the product identification field in the BIOS and then
switch it off again.
Set the system board switch 9 to open (normal operation) and switch on the
PC.
The PC prompts for new information. By identifying the product correctly, the
BIOS is able to tailor itself for the particular product, and to enable the
appropriate features.
Mini-Tower Vectras
HP Vectra XA 6/xxx MT PC Series
10 BaseT
100 Base T
HP Vectra XA 6/xxx MT PC Series 5-5
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