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Dell Inspiron 3670 Service Manual - Page 11

System board components

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System board components 1 memory-module slots (2) 3 SATA 1 cable connector (SATA 1) 5 hard-drive power cable connector (SATA PWR) 7 SATA 0 cable connector (SATA 0) 9 power-supply unit cable connector (ATX PWR) 11 service mode jumper 13 password clear jumper 15 graphics card slot 17 PCI-Express X1 slot 19 processor socket 2 SATA 2 cable connector (SATA 2) 4 coin-cell battery 6 SATA 3 cable connector (SATA 3) 8 hard-drive power cable connector (SATA PWR) 10 wireless-card slot 12 CMOS clear jumper 14 M.2 PCIe connector 16 PCI-Express X1 slot 18 processor-power cable connector (ATX CPU) Technical overview 11

Section	Page
Inspiron 3670 Service Manual	3
Before working inside your computer	7
Before you begin	7
Safety instructions	7
Recommended tools	8
Screw list	8
After working inside your computer	9
Technical overview	10
Inside view of your computer	10
System board components	11
Removing the computer cover	12
Procedure	12
Replacing the computer cover	13
Procedure	13
Removing the front bezel	14
Prerequisites	14
Procedure	14
Replacing the front bezel	16
Procedure	16
Post-requisites	17
Removing the memory module	18
Prerequisites	18
Procedure	18
Replacing the memory module	20
Procedure	20
Post-requisites	20
Removing the solid-state drive/Intel Optane memory module	21
Prerequisites	21
Procedure	21
Replacing the solid-state drive/Intel Optane memory module	23
Procedure	23
Post-requisites	23
Removing the graphics card	24
Prerequisites	24
Procedure	24
Replacing the graphics card	25
Procedure	25
Post-requisites	25
Removing the coin-cell battery	26
Prerequisites	26
Procedure	26
Replacing the coin-cell battery	27
Procedure	27
Post-requisites	27
Removing the wireless card	28
Prerequisites	28
Procedure	28
Replacing the wireless card	30
Procedure	30
Post-requisites	30
Removing the optical drive	31
Prerequisites	31
Procedure	31
Replacing the optical drive	33
Procedure	33
Post-requisites	34
Removing the power-supply unit	35
Prerequisites	35
Procedure	35
Replacing the power-supply unit	36
Procedure	36
Post-requisites	36
Removing the processor fan and heat-sink assembly	37
Prerequisites	37
Procedure	37
Replacing the processor fan and heat-sink assembly	39
Procedure	39
Post-requisites	40
Removing the processor	41
Prerequisites	41
Procedure	41
Replacing the processor	42
Procedure	42
Post-requisites	42
Removing the 3.5-inch hard drive	43
Prerequisites	43
Procedure	43
Replacing the 3.5-inch hard drive	44
Procedure	44
Post-requisites	44
Removing the 2.5-inch hard drive	45
Prerequisites	45
Procedure	45
Replacing the 2.5-inch hard drive	47
Procedure	47
Post-requisites	48
Removing the antenna modules	49
Prerequisites	49
Procedure	49
Replacing the antenna modules	50
Procedure	50
Post-requisites	50
Removing the system board	51
Prerequisites	51
Procedure	51
Replacing the system board	55
Procedure	55
Post-requisites	58
Downloading drivers	59
Downloading the audio driver	59
Downloading the graphics driver	59
Downloading the USB driver	60
Downloading the chipset driver	61
Downloading the network driver	61
System setup	63
Boot Sequence	63
Navigation keys	63
System setup	64
Entering BIOS setup program	64
Enabling or disabling the USB in BIOS setup program	64
Identifying the hard drive in BIOS setup program	64
Checking the system memory in BIOS setup program	64
System Setup Options	65
Flashing the BIOS	67
System and setup password	69
Assigning a system setup password	69
Deleting or changing an existing system setup password	70
Clearing Forgotten Passwords	70
Prerequisites	70
Procedure	70
Post-requisites	71
Clearing CMOS Settings	71
Prerequisites	71
Procedure	71
Post-requisites	72
Troubleshooting	73
Flashing the BIOS	73
Reinstall Windows using a USB recovery drive	73
Enhanced Pre-Boot System Assessment (ePSA) diagnostics	74
Running the ePSA Diagnostics	74
Diagnostics	74
Enabling Intel Optane memory	75
Disabling Intel Optane memory	75
Flea power release	76
Wi-Fi power cycle	76
Getting help and contacting Dell	77
Self-help resources	77