2GB-PC2-3200R-1RX4 - 2GB PC2-3200R-1RX4 400MHz DDR2 ECC Registered 1Rx4 240-Pin Server Memory

This 2GB PC2-3200R server memory module is a 240-pin DDR2-400 ECC Registered RDIMM built in the exact 1Rx4 organization with one rank of x4-width DRAM devices. It operates at 400 MT/s, commonly listed as 400MHz, and 1.8V for compatible legacy servers, workstations, blade systems, and DDR2 memory-card assemblies requiring 2GB single-rank x4 Registered memory. The manufacturer and PCB revision may vary, but every module supplied with this item will be 1Rx4.

Technical Specifications

• Product Type: DDR2 ECC Registered 1Rx4 server memory module
• Capacity: 2GB / 2048MB
• Quantity Included: One memory module
• Memory Technology: DDR2 SDRAM
• JEDEC Speed Class: DDR2-400 / PC2-3200R
• Effective Data Rate: 400 MT/s, commonly listed as 400MHz
• Memory Clock: 200MHz
• Peak Module Bandwidth: 3.2GB/s / 3200MB/s
• Form Factor: Standard 240-pin Registered DIMM
• Buffering: Registered address and command signals with an onboard register and clock PLL
• ECC Width: 72 bits total, consisting of 64 data bits and 8 ECC check bits
• Module Organization: 256M x 72
• Exact Rank / DRAM Organization: 1Rx4
• Rank Count: One rank
• DRAM Device Width: x4
• Electrical Loading: One rank load per module
• Common Device Construction: 18 one-gigabit x4 DRAM devices, commonly arranged as nine devices per side; package placement can vary by revision
• Nominal Voltage: 1.8V
• CAS Latency: CL3 at DDR2-400
• Common Rated Timing: 3-3-3
• Clock Cycle Time: 5.0ns
• Typical tRCD / tRP: 15ns / 15ns
• Burst Length: 4 or 8
• Module Features: Serial Presence Detect EEPROM, on-die termination, 4-bit prefetch architecture, and registered address/control signaling
• Common JEDEC Label: PC2-3200R-333-11 or PC2-3200R-333-12, depending on SPD and raw-card revision
• Common Module Width: Approximately 133.35mm
• Common Low-Profile Height: Approximately 30mm; height, PCB layout, heat spreader use, and component clearance vary by manufacturer revision
• Primary Application: Systems specifically supporting 2GB 240-pin DDR2-400 ECC Registered 1Rx4 RDIMMs
• Manufacturer: Varies by available inventory; every supplied module will meet the listed 1Rx4 specification

The 333 field in a PC2-3200R-333 label represents the CL-tRCD-tRP timing set of 3-3-3. It does not change the module's DDR2-400 / 400 MT/s speed rating. ECC correction and any enhanced device-level protection depend on the system memory controller, firmware, and supported population mode.

Interchangeable / Replacement Part Numbers

The following references identify 2GB DDR2-400 ECC Registered modules with a 1Rx4 organization. When replacing memory in an existing pair or bank, match the installed part number whenever possible.

HYMP125R72P4-E3, M393T5660AZ3-CCC, M393T5660MZ0-CCC, M393T5660MZ3-CCC, HYS72T256000HR-5-A, MT18HTF25672Y-40EA2, EBE20RE4AAFA-4A-E, EBE20RE4ABFA-4A-E, DTM63320A, DTM63320B, AH56K72M4BJC4M, SM2567RDR22543-5-I, SM2567RDR22543-5-S, TRS31270, TS256MQR72V4T, 39C941441A-L, D2-56KJ53LV-333, D2D2G400R72S4C3, I948-402-18R, L25723C7-R41H2W2F, L527R5A2AHA-50R, L527R5A2AHA-50X, 345114-061, 345114-861, 359243-001, 413386-001, 39M5814, 73P4793

Two-Module Kit Cross-References

4GB Kit Reference: 343057-B21

4GB Kit References: 39M5815, 73P4792

Each kit number above represents two 2GB modules. This item includes one 2GB module per quantity ordered; order two modules when your system requires a matched pair.

Important Compatibility Requirement

The module supplied will have a 1Rx4 organization. A 2Rx4, 2Rx8, or 1Rx8 module is not interchangeable solely because it has the same 2GB capacity, DDR2-400 speed, 240-pin connector, and PC2-3200R label. If your system requires a specific manufacturer part number or service label, match that reference exactly before ordering.

✅ Confirmed Compatibility

Compatibility applies specifically to 1Rx4 modules. Use identical modules within every required pair or bank, follow the system's slot order, and match the manufacturer or service part number when required. Similar model names can use different motherboard revisions or memory technologies, so verify the complete system model before ordering.

Systems

✔️ ProLiant DL360 G4p: Supports the 343057-B21 single-rank 4GB kit containing two 2GB 1Rx4 PC2-3200 modules; install the modules as the matched pair required by the server
✔️ ProLiant DL380 G4: Supports the 343057-B21 single-rank family; install identical modules in matched pairs and follow the documented bank order
✔️ ProLiant DL580 G3: Supports compatible 2GB single-rank PC2-3200 Registered modules; all modules within a populated bank must match, and any dual-rank banks in a mixed installation are populated before single-rank banks
✔️ ProLiant ML350 G4p: Supports the 343057-B21 single-rank family in identical pairs; if the server also contains a supported dual-rank bank, follow the system's rank-order rules
✔️ ProLiant ML370 G4: Supports the 343057-B21 single-rank family and does not use the dual-rank 2GB option as a substitute; install equal-capacity identical pairs in the prescribed slot order
✔️ ProLiant ML570 G3: Supports the 343057-B21 single-rank family; install identical pairs, observe the memory-board load limits, and populate at least two banks when configuring online spare with single-rank memory
✔️ eServer xSeries 236 Type 8841: Uses the 39M5814 or 73P4793 single-rank x4 family in matched pairs; this DDR2-400-rated option operates at the platform's supported memory speed
✔️ eServer xSeries 336 Types 8837 and 1879: Uses the 39M5814 or 73P4793 single-rank x4 family in matched pairs
✔️ eServer xSeries 346 Type 8840: Uses the 39M5814 or 73P4793 single-rank x4 family; follow the system's matched-pair and slot-order requirements
✔️ System x3650 T: Uses the 39M5814 single-rank 2GB family; install matched pairs for the documented interleaved configuration
✔️ IntelliStation Z Pro Type 6223: Supports the 39M5814 or 73P4793 single-rank x4 family; this supported module can operate below its DDR2-400 rating when required by the workstation configuration
✔️ Intel Server Board SE7520BB2: Compatible 2GB 1Rx4 references include HYMP125R72P4-E3, M393T5660AZ3-CCC, M393T5660MZ0-CCC, M393T5660MZ3-CCC, HYS72T256000HR-5-A, and MT18HTF25672Y-40EA2; identical modules are required within each bank
✔️ Intel Server Boards SE7520BD2SCSID2, SE7520BD2SATAD2, and SE7520BD2VD2: Support compatible 2GB 1Rx4 DDR2-400 ECC Registered modules; identical bank pairs are required, and single-rank modules permit a higher slot population than an all-dual-rank installation
✔️ Intel Server Board SE7320VP2D2: Supports compatible 2GB 1Rx4 PC2-3200 modules in identical pairs; use only the D2 baseboard because similarly named DDR-based revisions use a different memory technology
✔️ Intel Server Boards SE7520JR2SCSID2 and SE7520JR2ATAD2: Support 2GB x4 single-rank DDR2-400 Registered ECC modules in identical bank pairs; the similarly named D1 board variants use DDR rather than DDR2 and are not compatible with this module

☑️ Key Features

☑️ Guaranteed 1Rx4 organization with one rank of x4-width DRAM devices
☑️ One rank creates one electrical rank load per module on compatible DDR2 memory controllers
☑️ x4 DRAM organization supports the enhanced error-protection modes offered by compatible controllers when the complete memory configuration meets platform rules
☑️ 2GB capacity in a standard 240-pin DDR2 Registered DIMM form factor
☑️ DDR2-400 transfer rate with up to 3.2GB/s of peak bandwidth per module
☑️ ECC x72 organization supplies eight check bits to compatible error-correcting memory controllers
☑️ Registered address and command signaling supports compatible multi-DIMM server configurations
☑️ One 2GB module is included per quantity ordered

⚙️ Fit Notes

• Confirm that the installed module label or SPD data identifies 1Rx4. Do not identify this organization by chip count alone because a 1Rx4 module and a 2Rx8 module can both use 18 visible DRAM packages.
• This module is not an automatic replacement for 2Rx4, 2Rx8, or 1Rx8 memory. Capacity and PC2-3200R speed do not erase rank-count or DRAM-width requirements.
• Confirm that the system requires a 240-pin DDR2 ECC Registered RDIMM. It is not interchangeable with an unbuffered DIMM, a fully buffered DIMM, DDR or DDR3 memory, or a 200-pin DDR2 SO-DIMM.
• One module is included. Many compatible systems require identical pairs or complete banks, so order the quantity required by the system service manual.
• When replacing a module in an existing pair or bank, match the manufacturer part number, 1Rx4 organization, capacity, speed, and timing whenever possible.
• Install memory in the prescribed slot order. In systems that support mixed single-rank and dual-rank banks, the service manual can require dual-rank banks to be installed before single-rank banks.
• The x4 construction can enable controller-dependent Chipkill or similar device-level correction, but the module alone does not guarantee that feature. Every installed module, the memory controller, firmware, and population mode must support it.
• 400MHz refers to the 400 MT/s effective DDR data rate; the physical memory clock is 200MHz.