HP Netserver LPr Installation Guide

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Chapter 7 Installing Additional Boards
Introduction
The HP NetServer LPr includes four PCI slots; one (over the system board) is
taken by the Network Interface Controller (NIC) but can be used by other small
PCI boards. This chapter tells how to use the three available expansion slots. For
the latest information on PCI cards for the LPr, including slot recommendations,
see the Readme file and Configuration Advisor on your HP NetServer Navigator
CD-ROM (for instructions see the "Configuring the System" subsection in
Chapter 1).
Tools Required
You’ll need:
•
The LPr chassis must be outside of the rack. Use a T25 Torx driver to
remove the NetServer from the rack. See the last section in Chapter 9.
•
T15 Torx for the screws holding the PCI card stabilizer piece, and the PCI
card to the rear panel.
•
An anti-static service kit (3M

8501/8502/8503 or equivalent). This kit
includes a static-dissipating work surface, a chassis clip lead, and a wrist
strap.
Installation Basics
Interrupt Sharing
In the LPr, PCI slot #3 and the embedded SCSI controller share the same
interrupt line. The system is capable of avoiding internal conflicts through
interrupt sharing; however, interrupt sharing results in a small performance loss
as the operating system has to resolve which of the devices caused the interrupt
before it responds. Therefore, if the embedded SCSI controller is enabled, use the
other PCI slots before using slot #3.