Dell R420 Owner's Manual Page 117
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Technical Specifications
Processor
Processor type One or two Intel Xeon processors E5-2400 product family
Expansion Bus
Bus type PCI Express Generation 2 and 3
Expansion slots using riser card:
Riser 1 (Slot 1) One half-height, half length x4 link (for single
processor) or One half-height, half length x16 link (for
two processors)
Riser 2 (Slot 2) One full-height, half-length x16 link
Memory
Architecture 800 MT/s, 1066 MT/s, 1333 MT/s, or 1600 MT/s DDR3
registered, unbuffered or load-reduced Error Correcting
Code (ECC) DIMMs
Support for advanced ECC or memory optimized
operation
Memory module sockets Twelve 240-pin
Memory module capacities
RDIMMs 2 GB (single-rank), 4 GB (single- and dual-rank), 8 GB
(dual rank), and 16 GB (dual-rank)
UDIMMs 2 GB (single-rank) and 4 GB (single- and dual-rank)
Minimum RAM 2 GB with one processor
4 GB with two processors
Maximum RAM 96 GB with one processor
192 GB with two processors
Drives
Hard drives
Four hard-drive systems
Up to four 3.5 inch cabled hard drives
Up to four 3.5 inch hot-swappable SAS, SATA, or
Nearline SAS hard drives, or
117
- Dell PowerEdge R420 Systems 1
- Owner's Manual 1
- Notes, Cautions, and Warnings 2
- Contents 3
- About Your System 9
- LCD Panel Features 12
- Home Screen 13
- Setup Menu 13
- Diagnostic Indicators 14
- Hard-Drive Indicator Patterns 16
- NIC Indicator Codes 18
- Power Indicator Codes 18
- Getting Started Guide 19
- Choosing The System Boot Mode 21
- Entering System Setup 22
- System Setup Options 22
- System Setup Main Screen 23
- System BIOS Screen 23
- System Information Screen 23
- Memory Settings Screen 24
- Processor Settings Screen 24
- SATA Settings Screen 25
- Boot Settings Screen 26
- Integrated Devices Screen 26
- Serial Communications Screen 27
- System Security Screen 29
- Miscellaneous Settings 30
- Boot Manager Screen 33
- Embedded System Management 34
- Installing System Components 35
- Removing The Front Bezel 36
- Opening The System 36
- Inside The System 37
- Cooling Shroud 40
- System Memory 41
- Mode-Specific Guidelines 43
- Memory Sparing 44
- Memory Mirroring 44
- Sample Memory Configurations 44
- Removing Memory Modules 45
- Hard Drives 47
- Removing A Cabled Hard Drive 51
- 1. hard-drive carrier 54
- 2. screws (4) 54
- 3. hard drive 54
- 4. screw holes (4) 54
- 2. screws (5) 55
- 4. 2.5 inch hard drive 55
- Optical Drive (Optional) 56
- Cooling Fans 60
- Installing A Cooling Fan 61
- Removing An Expansion Card 63
- Installing An Expansion Card 65
- Removing The iDRAC Ports Card 68
- SD vFlash Card 69
- Internal Dual SD Module 70
- Internal SD Card 72
- Processors 74
- Installing A Processor 76
- Power Supplies 77
- Hot Spare Feature 78
- System Battery 81
- Hard-Drive Backplane 82
- 1. release tabs (2) 84
- 2. hard-drive backplane 84
- 3. guide pins (2) 84
- 4. chassis hooks (4) 84
- Control Panel Assembly 88
- Installing The Control Panel 89
- VGA Module 94
- Installing The VGA Module 95
- Power Distribution Board 97
- System Board 98
- Installing The System Board 99
- Troubleshooting Your System 101
- Troubleshooting A NIC 102
- Troubleshooting A Wet System 102
- Troubleshooting Cooling Fans 105
- Troubleshooting System Memory 105
- Troubleshooting An SD Card 106
- Troubleshooting A Hard Drive 108
- Troubleshooting Processors 110
- Using System Diagnostics 111
- System Diagnostic Controls 112
- Jumpers And Connectors 113
- System Board Connectors 114
- Technical Specifications 117
- System Messages 121
- Warning Messages 135
- Diagnostic Messages 135
- Alert Messages 135
- Getting Help 137
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