Locating Your User's Guide - Dell Precision 390 Quick Reference Manual

1 power connector (12VPOWER)
2 memory module connectors
3 battery socket (BATTERY)
4 memory fan connector (FAN_MEM)
5 front panel connector
6 main power connector (POWER)
7 IDE drive connector (IDE)
8 SATA connectors (SATA-1, SATA-3,
SATA-0, SATA-2)
9 RTC reset jumper (RTCRST)
10 Flexbay connector (FLEXBAY)
11 chassis intrusion header
12 PCI-Express x1 card slot

Locating Your User's Guide

Your User's Guide contains additional information about your computer such as:
• Technical specifications
• Information for changing the orientation of your computer from a desktop to a tower
• Front and back views of your computer, including all of the available connectors
• Inside views of your computer, including a detailed graphic of the system board and the connectors
• Instructions for cleaning your computer
• Information on software features, such as LegacySelect Technology control, using a password,
and system setup options
• Tips and information for using the Microsoft Windows XP operating system
• Instructions for removing and installing parts, including memory, cards, drives, the microprocessor,
and the battery
• Information for troubleshooting various computer problems
• Instructions for using the Dell Diagnostics and reinstalling drivers
• Information on how to contact Dell
You can access the User's Guide from your hard drive or the Dell Support website at support.dell.com.
13 PCI-Express x16 up to 150w card slot
14 PCI-Express x8 card slot (wired as x4)
15 PCI card slots (1-3)
16 external LED connector (AUX LED)
17 floppy drive (FLOPPY)
18 serial connector (SERIAL2)
19 card cage fan (FAN CARD CAGE)
20 internal speaker connector (INT_SPKR)
21 processor fan connector (FAN_CPU)
22 processor fan thermal sensor connector (THRM)
23 password jumper (PSWD)
24 processor connector (CPU)
Quick Reference Guide
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