Dell T420 Technical Manual
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7 PowerEdge T420 Technical Guide
2 System features
Compared to the previous-generation PowerEdge T410, the T420 supports up to 33% more
processor cores, 50% more DIMM slots, 166% more internal hard drive storage capacity, and the
greater I/O bandwidth of PCIe 3.0. Its high quality is backed by high-availability features including
redundant SD cards for failsafe hypervisors, soft fault-tolerant fans, and optional features such as
redundant high-efficiency power supplies and hot-plug hard drives.
Comparison of PowerEdge systems
The 12
th
generation PowerEdge T420 server replaces the T410. Table 2 compares some of the T420
features to those of the T410.
Table 2. Comparing the PowerEdge T410 to PowerEdge T420
Feature
PowerEdge T410
PowerEdge T420
Chassis
5U tower
5U rackable tower
1
Processors
Intel Xeon processors 5500 and
5600 series
Intel Xeon processor E5-2400 product family
Internal interconnect
Intel QuickPath Interconnect
Intel QuickPath Interconnect
Memory
2
Up to 8 x DDR3 RDIMM and
UDIMM
Up to 12 x DDR3 RDIMM and UDIMM
Hard drive bays
Up to 6 x 3.5”or 2.5” hot-plug or
cabled
16 x 2.5“ hot-plug or
8 x 3.5“/2.5” hot-plug or 4 x 3.5” cabled
RAID controller
PERC 6/i, SAS 6/iR, PERC 6/E,
H200, H700, H800, S100, S300
PERC H310, H710, H710P, H810, S110
PCI slots
Up to 4 PCIe 2.0 and 1 PCIe 1.0
Up to 4 PCIe 3.0 and 2 PCIe 2.0
Embedded NICs
Dual Broadcom
®
1GbE LOM
Dual Broadcom 1GbE LOM
Power supplies
Non-redundant 525W
Redundant 580W
Non-redundant 550W or hot-plug redundant
495W, 750W, or 1100W
Dell OpenManage
Systems Management
Dell OpenManage
Lifecycle Controller 1.x
iDRAC6 (Express or Enterprise) with
Lifecycle Controller
OpenManage Essentials
OMSA Agent
OpenManage Power Center (requires iDRAC7
Enterprise with Lifecycle Controller)
OpenManage Integrations and Connections
Basic management (standard option)
Internal GPU
Not supported
Up to 2 single-width or 1 double-width
Power efficiency
Gold
Platinum
Availability
Hot-plug drives
Hot-plug redundant power supply
units
Hot-plug drives
Hot-plug redundant power supply units
Fan fault tolerance
Fault-resilient memory
Internal dual SD modules
1
Optional kit available for field conversion from tower to rackable unit.
2
GB means 1 billion bytes and TB equals 1 trillion bytes; actual capacity varies with preloaded material and operating environment and will be less.