D-Link DSN-2100-10 - xStack Storage Area Network Array Hard Drive Hardware Reference Manual page 27

Requirement
PC2700/DDR333 speed
ECC
X8 RAMs
Registered
Buffered
Organization
DIMM 0 (J38)
System
Memory
Module
256MB
256MB
256MB
256MB
DSN-2100 Hardware Reference Guide
Table A-1. xStack Storage Array DIMM Specifications
SDRAMs must be JEDEC compliant and DDR333 capable, with a CAS latency of 2.5.
PC2100/DDR400 speed DIMMs can be used if they support a 2.5 CAS latency when
operating at DDR333 speed.
DIMMs must be organized as x72 bits wide, allowing support for ECC.
DIMMs must use 8-bit wide DRAMs that can support data mask (DM) signals. DIMMs that
use 4-bit-wide DRAMs do not provide DM signals and cannot be used.
DIMMs must be registered as per the JEDEC specification for registered DIMMs.
DIMMs must be buffered as per the JEDEC specification for buffered DIMMs.
Conforming DIMM organizations are shown in Table A-2..
Table A-2. DIMM Organization
DIMM 1 (J39) Total
System System
Memory Memory
Module
256MB 512MB
256MB 512MB
256MB 512MB
256MB 512MB
Description
DIMM 2 (J36) DIMM 3 (J37)
Buffer/Cache Buffer/Cache
Memory Memory
Module Module
256MB 256MB
512MB 512MB
1GB 1GB
2GB 2GB
Total Total
Memory
Buffer/Cache
Memory
512MB 1GB
1GB 1.5GB
2GB 2.5GB
4GB 4.5GB
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