- Notes, cautions, and warnings
- About your system
- Documentation resources
- Technical specifications
- Initial system setup and configuration
- Pre-operating system management applications
- Navigation keys
- System Setup
- Entering System Setup
- System Setup details
- System BIOS Settings details
- System Information details
- Memory Settings details
- Processor Settings details
- SATA Settings details
- Boot Settings details
- Network Settings screen details
- Integrated Devices details
- Serial Communication details
- System Profile Settings details
- System Security Settings details
- Miscellaneous Settings details
- About Boot Manager
- About Dell Lifecycle Controller
- Changing the boot order
- Choosing the system boot mode
- Creating a system and setup password
- Using your system password to secure your system
- Deleting or changing system password and setup password
- Operating with a setup password enabled
- Embedded systems management
- iDRAC Settings utility
- Installing and removing system components
- Safety instructions
- Before working inside your system
- After working inside your system
- Recommended tools
- Front bezel (optional)
- System cover
- Inside the system
- Intrusion switch
- Cooling shroud
- System memory
- Hard drives
- Supported hard drive configurations
- Removing a 2.5-inch hard drive blank
- Installing a 2.5-inch hard drive blank
- Removing a 3.5-inch hard drive blank
- Installing a 3.5-inch hard drive blank
- Removing a 3.5-inch cabled hard drive carrier
- Installing a 3.5-inch cabled hard drive carrier
- Removing a cabled hard drive from a hard drive carrier
- Installing a cabled hard drive into a hard drive carrier
- Removing a hot swappable hard drive carrier
- Installing a hot swappable hard drive carrier
- Removing the optional 1.8-inch solid state drives
- Installing the optional 1.8-inch solid state drives
- Removing a 2.5-inch hard drive from a 3.5-inch hard drive adapter
- Installing a 2.5-inch hot swappable hard drive into a 3.5-inch hard drive adapter
- Removing a 3.5-inch hard drive adapter from a 3.5-inch hot swappable hard drive carrier
- Installing a 3.5-inch hard drive adapter into the 3.5-inch hot swappable hard drive carrier
- Removing a hot swappable hard drive from a hard drive carrier
- Installing a hot swappable hard drive into a hot swappable hard drive carrier
- Optical drive (optional)
- Cooling fans
- Internal USB memory key (optional)
- Expansion cards and expansion card riser
- SD vFlash card (optional)
- iDRAC port card (optional)
- Internal dual SD module (optional)
- Heat sink and processor
- Power supply units
- System battery
- Hard drive backplane
- Control panel assembly
- Power interposer board
- Trusted Platform Module
- System board
- Using system diagnostics
- Jumpers and connectors
- Troubleshooting your system
- Troubleshooting system startup failure
- Troubleshooting external connections
- Troubleshooting the video subsystem
- Troubleshooting a USB device
- Troubleshooting iDRAC Direct (USB XML configuration)
- Troubleshooting iDRAC Direct (Laptop connection)
- Troubleshooting a serial I/O device
- Troubleshooting a NIC
- Troubleshooting a wet system
- Troubleshooting a damaged system
- Troubleshooting the system battery
- Troubleshooting power supply units
- Troubleshooting cooling problems
- Troubleshooting cooling fans
- Troubleshooting system memory
- Troubleshooting an internal USB key
- Troubleshooting an SD card
- Troubleshooting an optical drive
- Troubleshooting a tape backup unit
- Troubleshooting a hard drive or SSD
- Troubleshooting a storage controller
- Troubleshooting expansion cards
- Troubleshooting processors
- Getting help
Dell PowerEdge R330 Owner's Manual
Power supply units
Your system supports 350 W AC redundant power supply units (PSUs).
NOTE: If two PSUs are used, they must be of the same type and have the same maximum output power.
When two identical PSUs are installed, the PSU configuration is redundant (1 + 1). In redundant mode, power is supplied to the system equally from both PSUs to maximize efficiency.
When only one PSU is installed, the PSU configuration is non-redundant (1 + 0). Power is supplied to the system only by the single PSU.
In a non-redundant configuration, install a PSU blank in the empty PSU slot.
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