Dell PowerEdge 2450 - Manual (Page 78)

8-2 Dell PowerEdge 2450 Systems Installation and Troubleshooting Guide
Expansion cards are installed on the computer’s riser board (see Figure 8-2). The riser
board plugs into the RISER connector on the system board (see Figure 8-1) and is
considered an extension of the system board.
The riser board contains three full-length 32-bit, 33-megahertz (MHz), Peripheral Com-
ponent Interconnect (PCI) expansion-card connectors. All three expansion card
connectors support both 3.3-volt (V) and 5-V cards. Connector PCI2 supports an
optional Dell OpenManage Remote Server Assistant (DRAC) 2 card.
parallel port connector
(PARALLEL)
primary microprocessor
(PROC_1)
DIMM sockets
(DIMM_A–DIMM_D)
power input connector
(POWER3)
chassis intrusion switch con-
nector (INTRUS1)
hardware key connector for
optional RAID controller
(RAID_KEY)
Universal Serial Bus
(USB) connectors (2)
network interface
connector (ENET)
video connector (VGA)
battery connector
(BATTERY)
DIMM socket for optional
RAID controller
(DIMM_RAID)
configuration jumpers
SCSI backplane board interface
cable connector (BACKPLANE)
U160/m SCSI connector
(SCSI1 [Channel A])
PCI riser board
connector (RISER)
U160/m SCSI connector (SCSI2
[Channel B])
interposer board interface
cable connector (I/O CONN)
power input connector
(POWER1)
keyboard and mouse
connectors (KYBD/
MOUSE)
serial port connector (COM1)
secondary microprocessor
(PROC_2)
serial port connector (COM2)