Dell PowerEdge 2850 - Manual (Page 4)

Table A-2. System Board Connectors
Expansion-Card Riser-Board Components and PCI Buses
Figure A -4 shows the components on the PCI-X expansion-card riser board, including the expansion-card slots and buses. Table 6 -1 lists the PCI bus and
operating speed for each expansion-card slot. Figure A -5 shows the components on the optional PCI-X/PCIe expansion-card riser board, including the
expansion-card slots and buses. Table 6 -2 lists the PCI bus and operating speed for each expansion-card slot.
Figure A-4. PCI-X Expansion-Card Riser Board Components
Connector Description
BACKPLANE 2U5U Backplane connector
BATTERY System battery
DIMM nX Memory modules (6), where n is the slot in the bank and X is the bank
FAN_n Cooling fans:
l 1 — optional microprocessor 2
l 2, 3, 4 — microprocessor 1
l 5, 2U_6 — system fans
PROC n Microprocessors (2)
PSUn_CONN Power supply connectors (2)
RAC_CONN Remote access control (RAC) card
RAID_KEY Hardware key for optional integrated RAID controller
RISER_CONN_1 Riser board connector
RISER_CONN_PCI Riser board PCI bus connector
PARALLEL Parallel connector
NOTE: For the full name of an abbreviation or acronym used in this table, see the "Glossary" in the User's Guide.