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Using your system password to secure the system, Deleting or changing system and setup password,

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Using your system password to secure the system About this task If you have assigned a setup password, the system accepts your setup password as an alternate system password. Steps 1. Power on or reboot your system. 2. Type the system password and press Enter. Next steps When Password Status is set to Locked, type the system password and press Enter when prompted at reboot. NOTE: If an incorrect system password is typed, the system displays a message and prompts you to reenter your password. You have three attempts to type the correct password. After the third unsuccessful attempt, the system displays an error message that the system has stopped functioning and must be turned off. Even after you turn off and restart the system, the error message is displayed until the correct password is entered. Deleting or changing system and setup password Prerequisites NOTE: You cannot delete or change an existing system or setup password if the Password Status is set to Locked. Steps 1. To enter System Setup, press F2 immediately after turning on or restarting your system. 2. On the System Setup Main Menu screen, click System BIOS > System Security. 3. On the System Security screen, ensure that Password Status is set to Unlocked. 4. In the System Password field, change or delete the existing system password, and then press Enter or Tab. 5. In the Setup Password field, alter or delete the existing setup password, and then press Enter or Tab. NOTE: If you change the system password or setup password, a message prompts you to reenter the new password. If you delete the system password or setup password, a message prompts you to confirm the deletion. 6. Press Esc to return to the System BIOS screen. Press Esc again, and a message prompts you to save the changes. 7. Select Setup Password, change, or delete the existing setup password and press Enter or Tab. NOTE: If you change the system password or setup password, a message prompts you to reenter the new password. If you delete the system password or setup password, a message prompts you to confirm the deletion. Operating with setup password enabled If Setup Password is set to Enabled, type the correct setup password before modifying the system setup options. If you do not type the correct password in three attempts, the system displays the following message: Invalid Password! Number of unsuccessful password attempts: System Halted! Must power down. Password Invalid. Number of unsuccessful password attempts: Maximum number of password attempts exceeded.System halted. Even after you restart the system, the error message is displayed until the correct password is typed. The following options are exceptions: • If System Password is not set to Enabled and is not locked through the Password Status option, you can assign a system password. For more information, see the System Security Settings details section. • You cannot disable or change an existing system password. 56 Pre-operating system management applications

Section	Page
Dell EMC PowerEdge C6420 Installation and Service Manual	3
Dell EMC PowerEdge C6420 overview	7
Supported configurations	7
Back view of the PowerEdge C6420 sled	8
Network ports indicator codes	10
Sled to hard drive mapping	11
Expander zoning	11
Locating the Service Tag of your system	13
System information label	14
Documentation resources	17
Technical specifications	19
Dimensions of the Dell EMC PowerEdge C6420 sled	19
Chassis weight	20
Processor specifications	20
Supported operating systems	20
System battery	20
Expansion bus specifications	20
Memory specifications	21
Drives and storage specifications	21
Video specifications	21
Environmental specifications	22
Standard operating temperature specifications	22
Expanded operating temperature specifications	30
Operating temperature derating specifications	31
Relative humidity specifications	31
Temperature specifications	31
Thermal restrictions	31
Particulate and gaseous contamination specifications	34
Maximum vibration specifications	34
Maximum shock specifications	34
Maximum altitude specifications	35
Fresh Air Operation	35
Initial system setup and configuration	36
Setting up your system	36
iDRAC configuration	36
Options to set up iDRAC IP address	36
Log in to iDRAC	37
Options to install the operating system	37
Methods to download firmware and drivers	37
Downloading drivers and firmware	38
Pre-operating system management applications	39
Options to manage the pre-operating system applications	39
System Setup	39
Viewing System Setup	39
System Setup details	40
System BIOS	40
Viewing System BIOS	40
System BIOS Settings details	40
System Information	41
Viewing System Information	41
System Information details	41
Memory Settings	42
Viewing Memory Settings	42
Memory Settings details	42
Processor Settings	43
Viewing Processor Settings	43
Processor Settings details	43
SATA Settings	45
Viewing SATA Settings	45
SATA Settings details	45
NVMe Settings	45
Viewing NVMe Settings	46
NVMe Settings details	46
Boot Settings	46
Viewing Boot Settings	46
Boot Settings details	47
Choosing system boot mode	47
Changing boot order	47
Network Settings	48
Viewing Network Settings	48
Network Settings screen details	48
Integrated Devices	49
Viewing Integrated Devices	49
Integrated Devices details	49
Serial Communication	51
Viewing Serial Communication	51
Serial Communication details	51
System Profile Settings	52
Viewing System Profile Settings	52
System Profile Settings details	52
System Security	53
Viewing System Security	53
System Security Settings details	53
Creating a system and setup password	55
Using your system password to secure the system	56
Deleting or changing system and setup password	56
Operating with setup password enabled	56
Redundant OS Control	57
Viewing Redundant OS Control	57
Redundant OS Control screen details	57
Miscellaneous Settings	58
Viewing Miscellaneous Settings	58
Miscellaneous Settings details	58
iDRAC Settings utility	58
Device Settings	59
Dell Lifecycle Controller	59
Embedded system management	59
Boot Manager	59
Viewing Boot Manager	59
Boot Manager main menu	59
One-shot UEFI boot menu	60
System Utilities	60
PXE boot	60
Installing and removing enclosure components	61
Safety instructions	61
Before working inside your system	61
After working inside your system	62
Recommended tools	62
Dell EMC PowerEdge C6420 sled	62
Sled Installation Guidelines	62
Removing a sled	63
Installing a sled	65
PERC battery	66
Removing the PERC battery	66
Installing the PERC battery	67
Air shroud	68
Removing the air shroud	68
Installing the air shroud	69
System memory	70
System memory guidelines	70
General memory module installation guidelines	71
Mode-specific guidelines	71
Removing a memory module	73
Installing a memory module	74
Support bracket	75
Removing the support bracket	75
Installing the support bracket	76
Linking board and PCIe cable	77
Removing the linking board and PCIe cables	77
Installing the linking board and PCIe cables	78
Processor and heat sink module	79
Removing a processor and heat sink module	80
Installing a processor and heat sink module	81
Removing the fabric processor from the processor heat sink module	83
Installing the fabric processor into the processor heat sink module	84
Removing the non-fabric processor from the processor and heat sink module	86
Installing the non-fabric processor into a processor and heat sink module	89
Removing the fabric and sideband cables	91
Installing the fabric and sideband cables	92
Expansion cards	93
PCIe slot priority	93
Removing the expansion card riser assembly	95
Installing the expansion card riser assembly	96
Removing an expansion card	97
Installing an expansion card	98
Removing the riser card	100
Installing the riser card	100
Removing the M.2 SATA x16 riser	101
Installing the M.2 SATA x16 riser	102
Removing the M.2 SATA card	103
Installing the M.2 SATA card	104
M.2 SSD module	105
Removing the M.2 SATA x16 riser	106
Installing the M.2 SATA x16 riser	106
Removing the M.2 SATA card	107
Installing the M.2 SATA card	108
Mezzanine and OCP cards	110
Removing a mezzanine card	110
Installing a mezzanine card	111
Removing the mezzanine card bridge board	112
Installing the mezzanine card bridge board	113
Removing the OCP card	114
Installing the OCP card	115
System battery	116
Replacing system battery	116
Installing the system battery	117
System board	118
Removing the system board	118
Installing system board	119
Restoring the Service Tag by using the Easy Restore feature	120
Entering the system Service Tag by using System Setup	121
Trusted Platform Module	121
Upgrading the Trusted Platform Module	121
Removing the TPM	122
Installing the TPM	122
Initializing TPM for BitLocker users	122
Initializing the TPM 1.2 for TXT users	123
Initializing the TPM 2.0 for TXT users	123
System diagnostics	124
Dell Embedded System Diagnostics	124
Running the Embedded System Diagnostics from Boot Manager	124
Running the Embedded System Diagnostics from the Dell Lifecycle Controller	124
System diagnostic controls	125
Jumpers and connectors	126
System board jumper settings	126
System board connectors	126
Disabling forgotten password	127
Getting help	128
Contacting Dell EMC	128
Documentation feedback	128
Accessing system information by using QRL	128
Quick Resource Locator for C6400 and C6420 systems	129
Receiving automated support with SupportAssist	129

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Using your system password to secure the system

About this task

If you have assigned a setup password, the system accepts your setup password as an alternate system password.

Steps

Power on or reboot your system.

Type the system password and press Enter.

Next steps

When

Password Status

is set to

Locked

, type the system password and press Enter when prompted at reboot.

NOTE:

If an incorrect system password is typed, the system displays a message and prompts you to reenter your

password. You have three attempts to type the correct password. After the third unsuccessful attempt, the system

displays an error message that the system has stopped functioning and must be turned off. Even after you turn off and

restart the system, the error message is displayed until the correct password is entered.

Deleting or changing system and setup password

Prerequisites

NOTE:

You cannot delete or change an existing system or setup password if the Password Status is set to Locked.

Steps

To enter System Setup, press F2 immediately after turning on or restarting your system.

On the

System Setup Main Menu

screen, click

System BIOS

System Security

On the

System Security

screen, ensure that

Password Status

is set to

Unlocked

In the

System Password

field, change or delete the existing system password, and then press Enter or Tab.

In the

Setup Password

field, alter or delete the existing setup password, and then press Enter or Tab.

NOTE:

If you change the system password or setup password, a message prompts you to reenter the new password.

If you delete the system password or setup password, a message prompts you to confirm the deletion.

Press Esc to return to the

System BIOS

screen. Press Esc again, and a message prompts you to save the changes.

Select

Setup Password

, change, or delete the existing setup password and press Enter or Tab.

NOTE:

If you change the system password or setup password, a message prompts you to reenter the new password.

If you delete the system password or setup password, a message prompts you to confirm the deletion.

Operating with setup password enabled

Setup Password

is set to

Enabled

, type the correct setup password before modifying the system setup options.

If you do not type the correct password in three attempts, the system displays the following message:

Invalid Password! Number of unsuccessful password attempts: <x> System Halted! Must power

down.

Password Invalid. Number of unsuccessful password attempts: <x> Maximum number of password

attempts exceeded.System halted.

Even after you restart the system, the error message is displayed until the correct password is typed. The following options are

exceptions:

•

System Password

is not set to

Enabled

and is not locked through the

Password Status

option, you can assign a system

password. For more information, see the

System Security Settings details

section.

•

You cannot disable or change an existing system password.

Pre-operating system management applications