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Dell XPS 720 H2C Owner's Manual - Page 130

Components on Loosen the seven screws on the liquid cooling assembly

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1 2 1 power cable 2 TEC_PUMP 8 Disconnect the fan cable from the FAN1_CPU connector on the system board (see "System Board Components" on page 89). NOTICE: The processor heat sink is attached to the liquid cooling assembly. When you remove the liquid cooling assembly, lay it upside down or on its side to avoid damaging the heatsink thermal interface. NOTICE: The screw at the front of the liquid cooling assembly is not captive. Remove the screw and set it aside in a secure location. 9 Loosen the seven screws on the liquid cooling assembly, then lift the assembly out of the computer and set it aside. 130 Removing and Installing Parts

Section	Page
Contents	3
Finding Information	9
Setting Up and Using Your Computer	13
Front and Back View of the Computer	13
Front View	13
Front I/O Connectors	15
Back View	16
Back I/O Connectors	17
Attaching the Computer Stand	18
Installing Your Computer in an Enclosure	20
Connecting Monitors	22
Connecting a Monitor (Without an Adapter)	23
Connecting a Monitor (With an Adapter)	24
Connecting a Monitor in a Dual Graphics Card Configuration	25
Connecting Two or More Monitors	27
Connecting a TV	27
Changing the Display Settings to Support Two or More Monitors	28
About Your RAID Configuration	29
RAID Level 0 Configuration	29
RAID Level 1 Configuration	30
RAID Level 0+1 Configuration	30
RAID Level 5 Configuration	32
Configuring Your Hard Drives for RAID	32
Setting Your Computer to RAID-Enabled Mode	33
Using the NVIDIA MediaShield ROM Utility	33
Using NVIDIA MediaShield	34
Using Multimedia	37
Copying CD, DVD, and Blu-ray Disc™ (BD) Media	38
Helpful Tips	40
Using a Media Card Reader (Optional)	41
Network Setup Wizard	42
Transferring Information to a New Computer	43
Power Management Options in Windows XP	44
Standby Mode	44
Hibernate Mode	45
Power Options Properties	45
Power Management Options in Windows Vista	47
Sleep Mode	47
Hibernate Mode	47
Configuring Power Management Settings	47
Optimizing for Greater Performance	49
Understanding Dual-Graphics Technology	49
Understanding CPU Overclocking	49
Dell™ QuickSet	51
Troubleshooting	53
Solving Problems	53
Battery Problems	53
Drive Problems	53
E-Mail, Modem, and Internet Problems	55
Error Messages	56
IEEE 1394 Device Problems	57
Keyboard Problems	57
Lockups and Software Problems	58
Memory Problems	59
Mouse Problems	60
Network Problems	60
Power Problems	61
Printer Problems	61
Scanner Problems	62
Sound and Speaker Problems	63
Video and Monitor Problems	63
Power Lights	65
Diagnostic Lights	66
Beep Codes	69
System Messages	70
Dell Diagnostics	72
When to Use Dell Diagnostics	72
Starting Dell Diagnostics From Your Hard Drive	72
Starting Dell Diagnostics From the Drivers and Utilities Media	73
Dell Diagnostics Main Menu	74
Drivers	75
What Is a Driver?	75
Identifying Drivers	75
Reinstalling Drivers and Utilities	76
Using Windows Device Driver Rollback	76
Using the Drivers and Utilities Media	76
Restoring Your Operating System	78
Using Microsoft Windows System Restore	78
Using Dell PC Restore and Dell Factory Image Restore	79
Using the Operating System Media	82
Troubleshooting Software and Hardware Problems	83
Removing and Installing Parts	85
Before You Begin	85
Recommended Tools	85
Preparing to Work Inside Your Computer	85
Removing the Computer Cover	86
Inside View of Your Computer	88
System Board Components	89
Memory	90
DDR2 Memory Overview	90
Addressing Memory Configurations	91
Installing Memory	92
Removing Memory	93
Cards	94
Removing PCI and PCI Express Cards	95
Installing PCI and PCI Express Cards	97
Removing a PCI Express Graphics Card from a Dual Configuration	100
Installing a PCI Express Graphics Card in a Dual Configuration	102
Network Adapter and Sound Card Settings	105
Drives	106
About Serial ATA Drives	107
General Drive Installation Guidelines	107
Hard Drive	108
Removing a Hard Drive	108
Installing a Hard Drive	110
Drive Panel	113
Removing the Drive Panel	113
Replacing the Drive Panel	114
Floppy Drive	115
Removing a Floppy Drive	115
Installing a Floppy Drive	117
Media Card Reader	119
Removing a Media Card Reader	119
Installing a Media Card Reader	121
Optical Drive	123
Removing an Optical Drive	123
Installing an Optical Drive	125
Liquid Cooling Assembly	128
Safety Instructions for Liquid Cooling Assembly	128
Removing the Liquid Cooling Assembly	128
Installing the Liquid Cooling Assembly	131
Processor	132
Removing the Processor	132
Installing the Processor	133
Fans	135
Removing the Card Fan	135
Installing the Card Fan	137
Removing the Optional Hard Drive Fan	138
Installing the Optional Hard Drive Fan	139
System Board	140
Removing the System Board	140
Installing the System Board	141
Power Supply	142
Power Supply (PSU) DC Connector Pin Assignments	143
Removing the Power Supply	152
Installing the Power Supply	155
Front I/O Panel	156
Front I/O-Panel Components	156
Removing the Front I/O Panel	157
Installing the I/O Panel	158
Battery	158
Replacing the Battery	158
Removing the Computer Stand	159
Replacing the Computer Cover	160
Appendix	163
Specifications	163
System Setup	168
Overview	168
Entering System Setup	168
System Setup Options	169
Boot Sequence	175
Clearing Forgotten Passwords	176
Clearing CMOS Settings	177
Cleaning Your Computer	178
Computer, Keyboard, and Monitor	178
Mouse	178
Floppy Drive	179
CDs and DVDs	179
FCC Notices (U.S. Only)	179
Class A	180
Class B	180
FCC Identification Information	180
Contacting Dell	181
Glossary	205

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130

Removing and Installing Parts

Disconnect the fan cable from the FAN1_CPU connector on the system board (see "System Board

Components" on page 89).

NOTICE:

The processor heat sink is attached to the liquid cooling assembly. When you remove the liquid cooling

assembly, lay it upside down or on its side to avoid damaging the heatsink thermal interface.

NOTICE:

The screw at the front of the liquid cooling assembly is not captive. Remove the screw and set it aside in

a secure location.

Loosen the seven screws on the liquid cooling assembly, then lift the assembly out of the computer and

set it aside.

power cable

TEC_PUMP