You have read the safety information that shipped with your computer.
When replacing a component, you have already removed the original, if installed.
NOTE: The color of your system and certain system components may appear differently than shown in this document.
Recommended Tools
The procedures in this document may require the following tools:
Small flat-blade screwdriver
Phillips screwdriver
Small plastic scribe
Flash BIOS update (see the Dell Support website at support.dell.com)
Before Working on Your Computer
Use the following safety guidelines to help protect your computer from potential damage and to help to ensure your own personal safety.
CAUTION: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance.
NOTICE: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by Dell is not covered by your warranty.
NOTICE: When you disconnect a cable, pull on its connector or on its pull-tab, not on the cable itself. Some cables have connectors with locking tabs; if you are disconnecting this type of cable, press in on the locking tabs before you disconnect the cable. As you pull connectors apart, keep them evenly aligned to avoid bending any connector pins. Also, before you connect a cable, ensure that both connectors are correctly oriented and aligned.
NOTICE: To avoid damaging the computer, perform the following steps before you begin working inside the computer.
Ensure that the work surface is flat and clean to prevent the computer
cover from being scratched.
NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug the cable from the network device.
Disconnect all telephone or network cables from the computer.
Disconnect your computer and all attached devices from their electrical
outlets.
Press and hold the power button while the system is unplugged to ground
the system board.
NOTICE: Before touching anything inside your computer, ground yourself by touching an unpainted metal surface, such as the metal at the back of the computer. While you work, periodically touch an unpainted metal surface to dissipate static electricity, which could harm internal components.
Turning Off Your Computer
NOTICE: To avoid losing data, save and close all open files and exit all open programs before you turn off your computer.
Shut down the operating system.
Ensure that the computer and all attached devices are turned off. If your
computer and attached devices did not automatically turn off when you
shut down your operating system, press and hold the power button for
about 4 seconds to turn them off.
Inside View of Your Computer
1
power supply
2
optical drive bay
3
optional optical drive bays
4
floppy drive or Media Reader (optional)
5
USB, audio, 1394 (optional) connectors
6
3.5-inch drive bays (4)
7
chassis fan
`
System Board Components
1
power connector (PWR2)
2
CPU fan power
3
memory module connectors (4)
4
main power connector (PWR1)
5
floppy drive connector (FLOPPY)
6
CMOS jumper (CLEAR CMOS)
7
password jumper (CLEAR_PW)
8
serial ATA drive connector (SATA2)
9
serial ATA drive connector (SATA3)
10
front panel connector
11
serial ATA drive connector (SATA1)
12
USB1 system board connector
13
serial ATA drive connector (SATA4)
14
USB2 system board connector
15
USB3 system board connector
16
serial ATA drive connector (SATA5)
17
serial ATA drive connector (SATA0)
18
battery socket
19
audio connector (F_AUDIO)
20
PCI connector (PCI3)
21
PCI connector (PCI2)
22
PCI connector (PCI1)
23
PCI Express x1 connector (PCIE_X1 2)
24
PCI Express x1 connector (PCIE_X1 1)
25
PCI Express x16 connector (PCIE_x16)
26
audio connectors
27
one LAN and two USB ports
28
CPU fan power
29
USB ports (2)
30
video connector (VGA)
After Working on Your Computer
After you have completed any replacement procedures, ensure you connect any external devices, cards, cables, etc. before turning on your computer.
