Dell PowerEdge R420 Systems Owner's Manual

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Technical Specifications

Processor
Processor type		One or two Intel Xeon processors E5-2400 and E5-2400 v2 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), 16 GB (dual-rank), and 32 GB (quad-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		192 GB with one processor
		384 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 Up to four 2.5 inch hot-swappable SAS, SATA, SAS SSD, SATA SSD, or Nearline SAS hard drives NOTE: Four-hard-drive systems support software RAID. For more information on software RAID, see the Dell PowerEdge RAID Controller (PERC) documentation at dell.com/support/manuals.
	Eight hard-drive systems	Up to eight 2.5 inch, internal, hot-swappable SAS, SATA, SAS SSD, SATA SSD, or Nearline SAS hard drives in hard-drive slots 0 through 7.
Optical drive		One optional slim SATA DVD-ROM drive or DVD+/-RW drive. NOTE: DVD devices are data only.

Connectors
Back
	NIC	Two 10/100/1000 Mbps
	Serial	9-pin, DTE, 16550-compatible
	USB	Two 4-pin, USB 2.0-compliant
	Video	15-pin VGA
	iDRAC7	One optional 1 GbE Ethernet
	External vFlash card	One flash memory card slot with iDRAC Enterprise card NOTE: The card slot is available for use only if the iDRAC7 Enterprise license is installed on your system.
Front
	USB	Two 4-pin, USB 2.0-compliant
	Video	15-pin VGA
Internal
	USB	One 4-pin, USB 2.0-compliant
	Internal Dual SD Module	Two optional flash memory card slots with the internal SD module NOTE: One card slot is dedicated for redundancy.

Video
Video type		Integrated Matrox G200 with iDRAC7
Video memory		16 MB shared with iDRAC application memory

Expanded Operating Temperature
NOTE: When operating in the expanded temperature range, system performance may be impacted. NOTE: When operating in the expanded temperature range, ambient temperature warnings may be reported on the LCD and in the System Event Log.
	< 10% of annual operating hours	5 °C to 40 °C at 5% to 85% RH with 26 °C dew point. NOTE: Outside the standard operating temperature (10 °C to 35 °C), the system can operate down to 5 °C or up to 40 °C for a maximum of 10% of its annual operating hours. For temperatures between 35 °C and 40 °C, de-rate maximum allowable dry bulb temperature by 1 °C per 175 m above 950 m (1 °F per 319 ft).
	< 1% of annual operating hours	–5 °C to 45 °C at 5% to 90% RH with 26 °C dew point. NOTE: Outside the standard operating temperature (10 °C to 35 °C), the system can operate down to –5 °C or up to 45 °C for a maximum of 1% of its annual operating hours. For temperatures between 40 °C and 45 °C, de-rate maximum allowable dry bulb temperature by 1 °C per 125 m above 950 m (1 °F per 228 ft).
	Expanded Operating Temperature Restrictions	Do not perform a cold startup below 5 °C. Allow processor performance degrade. Non-redundant power supplies are not supported. Non Dell qualified peripheral cards and/or peripheral cards are not supported. Maximum altitude for the operating temperature must be 3050 m (10,000 ft).

Environmental
NOTE: For additional information about environmental measurements for specific system configurations, see dell.com/environmental_datasheets.
Temperature
	Maximum Temperature Gradient (Operating and Storage)	20 °C/h (36 °F/h)
	Storage Temperature Limits	–40 °C to 65 °C (–40 °F to 149 °F)
Temperature (Continuous Operation)
	Temperature Ranges (for altitude less than 950 m or 3117 ft)	10 °C to 35 °C (50 °F to 95 °F) with no direct sunlight on the equipment.
	Humidity Percentage Range	10% to 80% Relative Humidity with 26 °C (78.8 °F) maximum dew point.
Relative Humidity
	Storage	5% to 95% RH with 33 °C (91 °F) maximum dew point. Atmosphere must be non-condensing at all times.
Maximum Vibration
	Operating	0.26 G _rms at 5 Hz to 350 Hz (all operation orientations).
	Storage	1.87 G _rms at 10 Hz to 500 Hz for 15 min (all six sides tested).
Maximum Shock
	Operating	One shock pulse in the positive z axis of 31 G for 2.6 ms in all operational orientations.
	Storage	Six consecutively executed shock pulses in the positive and negative x, y, and z axes (one pulse on each side of the system) of 71 G for up to 2 ms.
Maximum Altitude
	Operating	3048 m ( 10,000 ft).
	Storage	12,000 m (39,370 ft).
Operating Altitude De-rating
	Up to 35 °C (95 °F)	Maximum temperature is reduced by 1 °C/300 m (1 °F/547 ft) above 950 m (3,117 ft).
	35 °C to 40 °C (95 °F to 104 °F)	Maximum temperature is reduced by 1 °C/175 m (1 °F/319 ft) above 950 m (3,117 ft).
	40 °C to 45 °C (104 °F to 113 °F)	Maximum temperature is reduced by 1 °C/125 m (1 °F/228 ft) above 950 m (3,117 ft).
Particulate Contamination NOTE: This section defines the limits to help avoid IT equipment damage and/or failure from particulates and gaseous contamination. If it is determined that levels of particulates or gaseous pollution are beyond the limits specified below and are the reason for the damage and/or failures to your equipment, it may be necessary for you to re-mediate the environmental conditions that are causing the damage and/or failures. Re-mediation of environmental conditions will be the responsibility of the customer.
	Air Filtration NOTE: Applies to data center environments only. Air filtration requirements do not apply to IT equipment designed to be used outside a data center, in environments such as an office or factory floor.	Data center air filtration as defined by ISO Class 8 per ISO 14644-1 with a 95% upper confidence limit. NOTE: Air entering the data center must have MERV11 or MERV13 filtration.
	Conductive Dust NOTE: Applies to data center and non-data center environments.	Air must be free of conductive dust, zinc whiskers, or other conductive particles.
	Corrosive Dust NOTE: Applies to data center and non-data center environments.	Air must be free of corrosive dust. Residual dust present in the air must have a deliquescent point less than 60% relative humidity.
Gaseous Contamination
NOTE: Maximum corrosive contaminant levels measured at ≤50% relative humidity.
	Copper Coupon Corrosion Rate	<300 Å/month per Class G1 as defined by ANSI/ISA71.04-1985.
	Silver Coupon Corrosion Rate	<200 Å/month as defined by AHSRAE TC9.9.