Installing The Cooling Shroud; System Memory - Dell PowerEdge M520 Owner's Manual

Installing The Cooling Shroud

CAUTION: Many repairs may only be done by a certified service technician. You should only perform
troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or
telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your
warranty. Read and follow the safety instructions that came with the product.
1. Align the tabs on the cooling shroud with the slots on the chassis.
2. Lower the cooling shroud into the system until the tabs seat securely on the slots on the blade chassis.
3. Close the blade.
4. Install the blade in the enclosure.

System Memory

Your system supports DDR3 unbuffered ECC DIMMs (UDIMM ECC) and registered DIMMs (RDIMMs). It supports DDR3
and DDR3L voltage specifications.
NOTE: MT/s indicates DIMM speed in MegaTransfers per second.
Memory bus operating frequency can be 1600 MT/s, 1333 MT/s, 1066 MT/s, or 800 MT/s depending on:
• DIMM type (UDIMM or RDIMM)
• DIMM configuration (number of ranks)
• maximum frequency of the DIMMs
• number of DIMMs populated per channel
• DIMM operating voltage
• system profile selected (for example, Performance Optimized, Custom, or Dense Configuration Optimized)
• maximum supported DIMM frequency of the processors
The following table shows the memory populations and operating frequencies for the supported configurations.
DIMM Type DIMMs
Populated/
Channel
UDIMM ECC 1
2
RDIMM 1
2
The system contains 12 memory sockets split into two sets of six sockets, one set per processor. Each six-socket set is
organized into three channels. In each channel, the release levers of the first socket is marked white and the second
black.
NOTE: DIMMs in sockets A1 to A6 are assigned to processor 1 and DIMMs in sockets B1 to B6 are assigned to
processor 2.
30
Operating Frequency (in MT/s)
1.5 V
1333, 1066, and 800
1333, 1066, and 800
1600, 1333, 1066 and 800
1333
1600, 1333, and 1066
1066
1.35 V
1333, 1066, and 800
1333, 1066, and 800
1333, 1066 and 800
1066
1333 and 1066
1066
Maximum DIMM Rank/
Channel
Dual rank
Dual rank
Dual rank
Quad rank
Dual rank
Quad rank