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Dell Alienware Area 51 R2 Service Manual - Page 18

I/O Board Components

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7 PCI-Express x16 slot (SLOT3) 8 M.2 connector (wireless card) 9 coin-cell battery socket (BAT1) 10 CMOS reset jumper (CLEAR CMOS1) 11 PCI-Express x4 slot (SLOT4) 12 Thunderbolt connector (TBT1) 13 PCI-Express x16 slot (SLOT5) 14 Serial Peripheral Interface connector (SP11) 15 PCI-fan connector (SIDE_FAN1) 16 drive-bay heat-sensor connector (SENSOR1) 17 chassis heat-sensor connector 18 PCI-Express power connector (SENSOR2) (PCIE_PWR1) 19 PCI-Express fan 1 connector (PCI_FAN1) 20 SATA drive connectors 21 USB connector (USB1) 22 LED Power Switch (PANEL1) 23 USB connector (USB3_MB1) 24 Advanced Technology xTended (ATX) power connector (ATX PWR1) 25 processor socket (CPU1) 26 memory-module slot (DIMM3) 27 memory-module slot (DIMM4) 28 processor liquid-cooling assembly fan connector (MID_FAN1) 29 memory fan connector (TOP_FAN1) 30 processor-power connector (CPU PWR1) 31 processor liquid-cooling assembly 32 memory-module slot (DIMM2) pump-fan connector (PUMP_FAN1) 33 memory-module slot (DIMM1) I/O Board Components NOTE: The location of the connectors may vary based on the selections you made at the time of purchase. 18

Section	Page
Alienware Area-51 Service Manual	3
Before Working Inside Your Computer	10
Before You Begin	10
Safety Instructions	10
Recommended Tools	12
After Working Inside Your Computer	13
Technical Overview	14
Inside View of Your Computer	14
Right View	15
Left View	16
System-Board Components	17
I/O Board Components	18
Lifting the Computer	20
Procedure	20
Removing the Stability Foot	22
Procedure	22
Replacing the Stability Foot	25
Procedure	25
Removing the Side Panels	26
Procedure	26
Replacing the Side Panels	28
Procedure	28
Removing the Battery	29
Prerequisites	29
Procedure	30
Replacing the Battery	31
Procedure	31
Post-requisites	32
Removing the Battery Case	33
Prerequisites	33
Procedure	33
Replacing the Battery Case	36
Procedure	36
Post-requisites	36
Removing the Hard Drive	37
Prerequisites	37
Procedure	37
Replacing the Hard Drive	40
Procedure	40
Post-requisites	40
Removing the Optical Drive	41
Prerequisites	41
Procedure	41
Replacing the Optical Drive	44
Procedure	44
Post-requisites	44
Removing the Right AlienFX Side-Panel Connector	45
Prerequisites	45
Procedure	45
Replacing the Right AlienFX Side-Panel Connector	48
Procedure	48
Post-requisites	48
Removing the Left AlienFX Side-Panel Connector	49
Prerequisites	49
Procedure	49
Replacing the Left AlienFX Side-Panel Connector	53
Procedure	53
Post-requisites	53
Removing the I/O Board	54
Prerequisites	54
Procedure	54
Replacing the I/O Board	57
Procedure	57
Post-requisites	57
Removing the Drive-Bay Heat-Sensor	58
Prerequisites	58
Procedure	58
Replacing the Drive-Bay Heat-Sensor	61
Procedure	61
Post-requisites	61
Removing the Memory Module(s)	62
Prerequisites	62
Procedure	62
Replacing the Memory Module(s)	64
Procedure	64
Post-requisites	65
Removing the Graphics Card	66
Prerequisites	66
Procedure	66
Replacing the Graphics Card	69
Procedure	69
Post-requisites	69
Removing the Multiple Graphics Cards	70
Prerequisites	70
Procedure	70
Replacing the Multiple Graphics Cards	74
Procedure	74
Post-requisites	74
Removing the Full-length Graphics Cards	75
Prerequisites	75
Procedure	75
Replacing the Full-length Graphics Cards	79
Procedure	79
Post-requisites	79
Removing the PCI Fan	80
Prerequisites	80
Procedure	80
Replacing the PCI Fan	85
Procedure	85
Post-requisites	85
Removing the Front-bezel Heat-sensor	86
Prerequisites	86
Procedure	86
Replacing the Front-bezel Heat-sensor	88
Procedure	88
Post-requisites	88
Removing the Memory Fan	89
Prerequisites	89
Procedure	89
Replacing the Memory Fan	91
Procedure	91
Post-requisites	91
Removing the Processor Cooling-Assembly	92
Prerequisites	92
Procedure	92
Replacing the Processor Cooling Assembly	95
Procedure	95
Post-requisites	96
Removing the Processor	97
Prerequisites	97
Procedure	97
Replacing the Processor	99
Procedure	99
Post-requisites	100
Removing the Power-Supply Unit	101
Prerequisites	101
Procedure	101
Replacing the Power-Supply Unit	104
Procedure	105
Post-requisites	106
Removing the Coin-Cell Battery	107
Prerequisites	107
Procedure	107
Replacing the Coin-Cell Battery	109
Procedure	109
Post-requisites	109
Removing the Wireless Card	110
Prerequisites	110
Procedure	110
Replacing the Wireless Card	112
Procedure	112
Post-requisites	112
Removing the Logo Board	113
Prerequisites	113
Procedure	113
Replacing the Logo Board	116
Procedure	116
Post-requisites	116
Removing the System Board	117
Prerequisites	117
Procedure	118
Replacing the System Board	119
Procedure	119
Post-requisites	119
System Setup	121
Overview	121
Entering System Setup	121
System Setup Options	121
Clearing Forgotten Passwords	130
Clearing CMOS Settings	131