- Notes, cautions, and warnings
- PowerEdge R740 system overview
- Documentation resources
- Initial system setup and configuration
- Installing and removing system components
- Safety instructions
- Before working inside your system
- After working inside your system
- Recommended tools
- Optional front bezel
- System cover
- Backplane cover
- Inside the system
- Air shroud
- Cooling fan assembly
- Cooling fans
- Intrusion switch
- NVDIMM-N battery
- Drives
- Drive guidelines
- Removing a drive blank
- Installing a drive blank
- Removing a drive carrier
- Installing a drive carrier
- Removing a 2.5 inch drive from the 3.5 inch drive adapter
- Installing a 2.5 inch drive into the 3.5 inch drive adapter
- Removing a 3.5 inch adapter from a 3.5 inch drive carrier
- Installing a 3.5 inch adapter into a 3.5 inch drive carrier
- Removing the drive from the drive carrier
- Installing a drive into the drive carrier
- System memory
- Processors and heat sinks
- Expansion cards and expansion card risers
- Expansion card installation guidelines
- Opening and closing the PCIe card holder latch
- Removing expansion card from the expansion card riser
- Installing expansion card into the expansion card riser
- Removing riser 2 and 3 blank
- Installing riser 2 and 3 blank
- Removing riser 3 blank
- Installing riser 3 blank
- Removing expansion card riser 1
- Installing expansion card riser 1
- Removing expansion card riser 2
- Installing expansion card riser 2
- Removing expansion card riser 3
- Installing expansion card riser 3
- GPU or ACLR card installation guidelines
- Removing a GPU
- Installing a GPU
- M.2 SSD module
- Optional MicroSD or vFlash card
- Optional IDSDM or vFlash module
- Network daughter card
- Integrated storage controller card
- Backplane
- Cable routing
- System battery
- USB 3.0 module
- Optional internal USB memory key
- Optional optical drive
- Power supply units
- System board
- Trusted Platform Module
- Control panel
- System diagnostics
- Jumpers and connectors
- Getting help
Dell EMC PowerEdge R740 Installation and Service Manual
Power supply unit details
Your system supports one of the following:
- Two 2400 W, 2000 W, 1600 W, 1100 W, 750 W, or 495 W AC PSUs
- Two 1100 W DC PSUs
- Two 1100 W or 750 W Mixed Mode HVDC PSUs
NOTE:For more information, see the
www.dell.com/poweredgemanuals section.
CAUTION:If two PSUs are installed, both the PSUs must have the same type of label. For example, Extended Power Performance (EPP) label. Mixing PSUs from previous generations of PowerEdge servers is not supported, even if the PSUs have the same power rating. Mixing PSUs will result in mismatch condition or failure to turn the system on.
NOTE:Titanium PSU is nominally rated for 200 V AC to 240 V AC input only.
NOTE:When two identical PSUs are installed, power supply redundancy (1+1 – with redundancy or 2+0 – without redundancy) is configured in system BIOS. In redundant mode, power is supplied to the system equally from both PSUs when Hot Spare is disabled. When Hot Spare is enabled, one of the PSUs is put into the sleep mode when system utilization is low in order to maximize efficiency.
NOTE:If two PSUs are used, they must be of the same maximum output power.
NOTE:PSUs are hot swappable.
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