Dell Precision 420 User Manual page 8

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Installing System Board Options: Dell Precision™ WorkStation 420 Systems User's
Guide
Overview
Expansion Cards
Adding Memory
Overview
This section describes how to install the following options:
Peripheral Component Interconnect (PCI), redundant arrays of independent disks (RAID), and accelerated graphics port (AGP) expansion
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cards
System memory
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Microprocessor single-edge connector cartridge 2 (SECC2) package
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This section also includes instructions for replacing the system battery, if necessary.
Use Figure 1 to locate the system board features.
Figure 1. System Board Features
1 CD-ROM drive audio connector
2 Power connector (desktop chassis)
3 Diskette drive connector
4 Power connector (desktop chassis)
5 Battery
6 RIMM sockets
7 SCSI narrow connector
8 Secondary EIDE connector
9 Suspend to RAM LED
10 Jumper block
11 System board screw
Microprocessor Upgrades
Replacing the System Battery