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41Y2728 — Memory Specs & Substitutes

IBM · DIMM
WHAT YOU NEED TO KNOW
2Rx4 = Dual Rank ×4 chip width (standard server) RDIMM = Registered (servers) | LRDIMM = Load-Reduced (max density)
DDR3 ≠ DDR4 ≠ DDR5 — physically incompatible (notch position)
PRODUCT OVERVIEW

IBM 1Gb PC2-5300E 667Mhz ECC UB DR x8 CL5 ECC 240-Pin (128Mx72) DIMM - P/N. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
41Y2728
SPECIFICATIONS
Part Number41Y2728
ManufacturerIBM
Capacity1GB
FITS THESE MACHINES
Lenovo System x x3250 M2
COMPONENT DIAGRAM
ECC 1GB 2Rx4 PC4 — RDIMM IBM NOTCH ~133.35 mm DDR4 RDIMM | 1GB | — | PC4 Notch position = DDR4 generation | DDR3/DDR4/DDR5 physically incompatible RDIMM = Registered (servers) | LRDIMM = Load-Reduced | UDIMM = Unbuffered TITLE DDR4 RDIMM PN 41Y2728 MFR IBM 1GB —
KEY FEATURES
•
1GB Capacity
TYPICAL APPLICATIONS
  • Server memory expansion for virtualization workloads
  • Database performance optimization (in-memory computing)
  • VDI and remote desktop session hosting
  • High-performance computing (HPC) clusters
  • Mail server and collaboration platform scaling
  • Application server tier expansion
SUBSTITUTES & CROSS-REFERENCES 2
41Y2729CompatiblePARTNER
IBM 2Gb PC2-5300E 667Mhz ECC UB DR x8 CL5 ECC 240-Pin (2x1Gb) Memory Kit for M1/M2 - Option
compatible
38L6046CompatiblePARTNER
IBM 1Gb PC2-5300E 667Mhz ECC UB DR x8 CL5 ECC 240-Pin (128Mx72) DIMM - P/N
compatible
LIFECYCLE

No lifecycle data available.

THIS PART SUBSTITUTES FOR 2
38L6046SUBSTITUTE
IBM 1Gb PC2-5300E 667Mhz ECC UB DR x8 CL5 ECC 240-Pin (128Mx72) DIMM - FRU
IBM
41Y2729SUBSTITUTE
IBM 1Gb PC2-5300E 667Mhz ECC UB DR x8 CL5 ECC 240-Pin (128Mx72) DIMM - FRU
IBM
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FREQUENTLY ASKED QUESTIONS
What is 41Y2728?
41Y2728 is a IBM 1Gb PC2-5300E 667Mhz ECC UB DR x8 CL5 ECC 240-Pin (128Mx72) DIMM - P/N manufactured by IBM.
What parts can replace 41Y2728?
There are 2 known substitutes for 41Y2728: 41Y2729, 38L6046. Substitute compatibility should be verified for your specific system.
Is 41Y2728 still available?
41Y2728 is currently Unknown.
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PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.