Installation and Service Manual
Table Of Contents
- Dell EMC PowerEdge R750xs Installation and Service Manual
- Contents
- About this document
- PowerEdge R750xs system overview
- Initial system setup and configuration
- Minimum to POST and system management configuration validation
- Installing and removing system components
- Safety instructions
- Before working inside your system
- After working inside your system
- Recommended tools
- Optional front bezel
- System cover
- Drive backplane cover
- Optional optical drive
- Air shroud
- Cooling fans
- Side wall brackets
- Intrusion switch module
- Optional serial COM port
- Drives
- Drive backplane
- Cable routing
- System memory
- Processor and heat sink module
- Expansion cards and expansion card risers
- Optional IDSDM module
- MicroSD card
- Optional BOSS S2 card
- PERC
- Rear drive module
- Optional OCP card
- System battery
- Optional internal USB card
- Power supply unit
- Power interposer board
- System board
- Trusted Platform Module
- Control panel
- Jumpers and connectors
- System diagnostics and indicator codes
- Getting help
- Documentation resources
Table 35. System board jumpers and connectors (continued)
Item Connector Description
36. Coin cell battery Coin cell battery
37. SL6_CPU2_PB3 PCIe cable connector 6 (Processor 2)
38. SL5_CPU2_PA3 PCIe cable connector 5 (Processor 2)
39. X16 (CPU2) x16 PCIe slot 6 ( Processor 2)
System board jumper settings
For information about resetting the password jumper to disable a password, see the Disabling a forgotten password section.
Table 36. System board jumper settings
Jumper Setting Description
PWRD_EN The BIOS password feature is enabled.
The BIOS password feature is disabled. The BIOS password is
now disabled and you are not allowed to set a new password.
NVRAM_CLR The BIOS configuration settings are retained at system boot.
The BIOS configuration settings are cleared at system boot.
CAUTION: Be careful when changing the BIOS settings. The BIOS interface is designed for advanced users. Any
change in the setting could prevent your system from starting correctly and you might have potential loss of
data.
Disabling a forgotten password
The software security features of the system include a system password and a setup password. The password jumper enables or
disables password features and clears any password(s) currently in use.
Prerequisites
CAUTION:
Many repairs may only be done by a certified service technician. You should only perform
troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or
telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by
your warranty. Read and follow the safety instructions that are shipped with your product.
Steps
1. Power off the system and all attached peripherals. Disconnect the system from the electrical outlet, and disconnect the
peripherals.
2. Remove the system cover.
3. Move the jumper on the system board from pins 2 and 4 to pins 4 and 6.
4. Replace the system cover.
NOTE:
The existing passwords are not disabled (erased) until the system boots with the jumper on pins 4 and 6.
However, before you assign a new system and/or setup password, you must move the jumper back to pins 2 and 4.
NOTE: If you assign a new system and/or setup password with the jumper on pins 4 and 6, the system disables the new
password(s) the next time it boots.
5. Reconnect the peripherals and connect the system to the electrical outlet, and then power on the system.
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Jumpers and connectors