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Dell Precision 7920 Tower Owners Manual - Page 85

RAID controller battery, Removing the RAID controller battery

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h) front bezel i) side cover 5. Flip the system to connect the SATA 0 cable to the connector on the system board. 6. Install the right side cover 7. Follow the procedure in After working inside your computer RAID controller battery Removing the RAID controller battery 1. Follow the procedure in Before working inside your computer. 2. Remove the side cover. 3. To remove the RAID controller battery: a) Disconnect the RAID controller battery cable from the RAID controller card. b) Push the securing tab out to release the RAID controller battery. Removing and installing components 85

Section	Page
Dell Precision 7920 Tower Owner's Manual	3
Chassis	7
Front view	7
Back view	8
Internal view	9
Major components of your system	12
Working on your computer	14
Safety instructions	14
Turning off your computer — Windows	14
Before working inside your computer	15
After working inside your computer	15
Removing and installing components	16
Screw size list	16
Recommended tools	17
Power supply unit (PSU)	18
Removing the PSU	18
Installing the PSU	18
Side cover	18
Removing the side cover	18
Installing the side cover	19
Air shroud	20
Removing the air shroud	20
Installing the air shroud fan assembly	20
Removing the air shroud fan	20
Installing the air shroud fan	22
Front bezel	22
Removing the front bezel	22
Installing the front bezel	23
PCIe holder	24
Removing PCIe card holder	24
Installing the PCIe card holder	25
Intrusion switch	25
Removing the intrusion switch	25
Installing the intrusion switch	27
Front system fan assembly	27
Removing the front system fan assembly	28
Installing the front system fan assembly	31
Internal chassis speaker	31
Removing the internal chassis speaker	31
Installing the internal chassis speaker	32
Hard disk drive and the Optical disk drive bezel	33
Removing the HDD bezel	33
Installing the HDD bezel	33
Hard disk drive assembly	34
Removing the HDD carrier	34
Installing the HDD carrier	35
Removing the HDD	35
Installing the HDD	36
NVMe Flexbay	37
Removing the NVMe Flexbay	37
Installing the NVMe flexbay	41
Front input and output bezel	43
Removing the front input and output bezel	43
Installing the front input and output bezel	45
Front input and output panel	45
Removing the front input and output panel	45
Installing the front input and output panel	48
Removing the input and output panel bracket	49
Installing the input and output panel	50
Rear system fan	50
Removing the rear system fan	50
Installing the rear system fan	52
Right side cover	52
Removing the right side cover	52
Installing the right side cover	52
Hard disk drive and optical disk drive frame	53
Removing the HDD and ODD frame	53
Installing the HDD and ODD frame	56
Slim Optical Disk Drive	56
Removing the slim ODD and ODD latch	56
Installing the slim ODD and ODD latch	58
5.25-inch optical drive	59
Removing the 5.25-inch optical drive	59
Installing the 5.25-inch optical drive	60
Power distribution and fan control board	61
Removing the power distribution and fan control board	61
Installing the power distribution and fan control board	62
Front HDD cable and fan assembly	63
Removing the front HDD cable and fan assembly	63
Installing the front HDD cable and fan assembly	64
Fan and sensor cable assembly	64
Fan bracket	69
Removing the fan from the fan bracket	69
Installing the fan into the fan bracket	70
Graphical processing unit(GPU)	71
Removing the GPU	71
Installing the GPU	72
Memory	72
Removing the memory module	72
Installing the memory module	73
Coin cell battery	73
Removing the coin cell battery	73
Installing the coin cell battery	74
Processor heat sink module	74
Removing the processor heat sink module	74
Installing the processor heat sink module	75
Removing the CPU	76
Installing the CPU	77
System board	80
System board components	80
Removing system board	81
Installing the system board	84
RAID controller battery	85
Removing the RAID controller battery	85
Installing the RAID controller battery	87
RAID controller battery bracket	87
Removing the RAID controller battery bracket	87
Installing the RAID controller battery bracket	88
VROC module	88
Removing the VROC module	88
Installing the VROC module	89
Technology and components	90
Memory configuration	90
Technologies list	90
MegaRAID 9440-8i and 9460-16i controller	92
Teradici PCoIP	94
System specifications	98
System specifications	98
Memory specifications	98
Video specifications	99
Audio specifications	99
Network specifications	99
Card Slots	100
Storage specifications	100
External connectors	100
Power specifications	100
Physical specifications	100
Environmental specifications	101
System Setup	102
General options	102
System configuration	103
Video	105
Security	105
Secure boot	106
Performance	106
Power management	108
POST behavior	108
Virtualization support	109
Maintenance	109
System logs	109
Engineering configurations	109
Updating the BIOS in Windows	110
Updating BIOS on systems with BitLocker enabled	110
Updating your system BIOS using a USB flash drive	110
Updating the Dell BIOS in Linux and Ubuntu environments	111
Flashing the BIOS from the F12 One-Time boot menu	111
MegaRAID controller options	114
System and setup password	115
Assigning a system setup password	115
Deleting or changing an existing system setup password	115
Software	117
Supported operating systems	117
Downloading drivers	117
Chipset driver	117
Graphics controller driver	118
USB drivers	118
Network drivers	119
Audio drivers	119
Ports	119
Storage controller drivers	119
Other drivers	119
Troubleshooting	121
Dell Enhanced Pre-Boot System Assessment — ePSA Diagnostic 3.0	121
Running the ePSA Diagnostics	121
Testing memory using ePSA	121
Preboot blinking power button codes	122
Hard drive indicator codes	125