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43X5056 — 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 8Gb PC3-10600R 1333Mhz ECC REG DR x4 CAS-9 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
43X5056
SPECIFICATIONS
Part Number43X5056
ManufacturerIBM
Capacity8GB
Speed1333MHz
COMPONENT DIAGRAM
ECC 8GB 2Rx4 PC4 1333MHz RDIMM IBM NOTCH ~133.35 mm DDR4 RDIMM | 8GB | 1333MHz | PC4 Notch position = DDR4 generation | DDR3/DDR4/DDR5 physically incompatible RDIMM = Registered (servers) | LRDIMM = Load-Reduced | UDIMM = Unbuffered TITLE DDR4 RDIMM PN 43X5056 MFR IBM 8GB 1333MHz
KEY FEATURES
•
8GB Capacity
•
1333MHz Speed
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 8
46C7449CompatiblePARTNER
IBM 8Gb PC3-10600R 1333Mhz ECC REG DR x4 CAS-9 (1x8Gb) Memory Kit for M2/M3 - Option
compatible
43X5048CompatiblePARTNER
IBM 8GB Pc3-10600r 1333MHZ ECC Reg Dr X4 Cas-9 Dimm - P/n
compatible
46C7453CompatiblePARTNER
IBM 8GB Pc3-10600r 1333MHZ ECC Reg Dr X4 Cas-9 Dimm - Fru
compatible
46C0597CompatiblePARTNER
IBM 8Gb PC3-10600R 1333Mhz ECC REG DR x4 CAS-9 (1x8Gb) Memory Kit for M3 - SBB
compatible
47J0157CompatiblePARTNER
IBM 8GB Pc3-10600r 1333MHZ ECC Reg Dr X4 Cas-9 Dimm - P/n
compatible
49Y1446CompatiblePARTNER
IBM 8GB Pc3-10600r 1333MHZ ECC Reg Dr X4 Cas-9 Dimm - Fru
compatible
LIFECYCLE

No lifecycle data available.

THIS PART SUBSTITUTES FOR 3
43X5048SUBSTITUTE
IBM 8Gb PC3-10600R 1333Mhz ECC REG DR x4 CAS-9 DIMM - P/N
IBM
46C7449SUBSTITUTE
IBM 8Gb PC3-10600R 1333Mhz ECC REG DR x4 CAS-9 DIMM - P/N
IBM
46C7453SUBSTITUTE
IBM 8Gb PC3-10600R 1333Mhz ECC REG DR x4 CAS-9 DIMM - P/N
IBM
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FREQUENTLY ASKED QUESTIONS
What is 43X5056?
43X5056 is a IBM 8Gb PC3-10600R 1333Mhz ECC REG DR x4 CAS-9 DIMM - P/N manufactured by IBM.
What parts can replace 43X5056?
There are 8 known substitutes for 43X5056: 46C7449, 43X5048, 46C7453 and 5 more. Substitute compatibility should be verified for your specific system.
Is 43X5056 still available?
43X5056 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.