Riser Card
Your computer uses a riser card for expansion. The riser card contains expansion
slots that connect adapters to the industry standard architecture (ISA) and
peripheral component interconnect (PCI) buses.
You can install a variety of adapters in the expansion slots on the riser card. For
information on locating the riser card, see “Locating Components” on page 9.
The riser card in your computer has three dedicated ISA slots and three dedicated
PCI slots. The following illustration shows the expansion slots and connectors on
the riser card.
Fan
Modem
Wakeup
PCI
PCI
PCI
ISA
ISA
ISA
340-Pin
Connector
SCSI Hard Disk LED
Wake on LAN
Alert on LAN
Asset ID Antenna
Chassis-Intrusion Detector
Internal
Speaker
CD
Audio
Notes:
1. Chassis-intrusion, Alert on LAN, and Asset ID are available on some models
only.
2. If you attach a 4-position cable connector to the 2-pin Modem Wakeup
connector, ensure that the unused positions are next to the bottom of the riser card.
If this cable is incorrectly attached, the computer might automatically restart
each time you turn power off.
3. The front fan is controlled by the system management controller, and if the
temperature of the box is at a low state, then the system management controller
will turn the fan off. This is also true for Disk Fan A, if attached.
Chapter 4. Working with Adapters
27
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