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Anasayfa > Marcas > Dell > Computador > Precision 620
Expansion Cards
The computer system accommodates up to six expansion cards (two 64-bit and four 32-bit PCI expansion cards), one 32-bit AGP Pro card, and
one 32-bit PCI/redundant array of independent disks (RAID) port. See Figure 2 for examples of the expansion cards.
Figure 2. Expansion Cards
Expansion Slots
The Dell Precision 620 system provides six PCI 2.2-compliant expansion slots on two peer buses. Four 32-bit slots (1, 2, 3, and 4) are on the
primaryPCIbus.OneortwooftheseslotsmaybeusedwiththeAGPProconnector.Slot4issharedwiththeRAIDportfunction.Two64-bit slots
(5 and 6) are on the secondary PCI bus.
You can install a properly keyed universal PCI expansion card in either the 32-bit (5-volt [V], 33-megahertz [MHz]) or 64-bit (3.3-V, 66- or 33-MHz)
PCI expansion slots. Either of the 64-bit expansion slots will accept a properly keyed 32-bit expansion card without affecting the other 64-bit
expansion slot; however, if you install a 33-MHz expansion card in either 64-bit expansion slot, the other 64-bit expansion slot operates at 33 MHz
also.
Installing an Expansion Card
1. Prepare the expansion card for installation, and remove the computer cover.
See the documentation that came with the expansion card for information on configuring the card, making internal connections, and
customizing it for your system.
12
ProcessormismatchLED
33
32-bit PCI expansion-card connectors (3)
13
Memory expansion card B connector
34
AGP Pro graphics card connector
14
System board thumbscrew
35
Network connector
15
Suspend to RAM LED
36
Diagnostic LEDs
16
Memory expansion-card A connector
37
USB connectors
17
LVDSCSIconnector
38
Microphone, audio-in,andaudio-out connectors
18
Standby power LED
39
Keyboard and mouse connectors
19
Memory expansion-card mismatch LED
40
System fan connector
20
Control panel connector
41
Serial port connectors 1 and 2
21
Remote wakeup LAN connector
42
Parallel port and SCSI port connectors
1
64-bit PCI expansion card
2
32-bit PCI expansion card
3
32-bit AGP expansion card
NOTE: There are no Industry-Standard Architecture (ISA) slots provided.
NOTE: If you install a PCI expansion card, your system automatically performs any required configuration tasks during the boot routine.
NOTICE: See "Protecting Against Electrostatic Discharge" in your Dell Precision WorkStations System Information Guide.
CAUTION: Some network cards automatically start up the system when they are connected. To guard against electrical
shock and to avoid damaging electrical components, perform the following steps before you install any expansion
cards:
a. Disconnect the external power cable at the back of the system.
b. Disconnect any network cables and phone lines.