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78P0555 ✓ Verified by PartsTable
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

The IBM 8GB 1x8gb Pc3l-10600r 2Rx4 Dimm is a IBM memory module engineered for enterprise server and workstation platforms requiring validated, high-reliability memory. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
78P0555
SPECIFICATIONS
Part Number78P0555
ManufacturerIBM
Capacity8GB
COMPONENT DIAGRAM
ECC 8GB 2Rx4 PC4 — RDIMM IBM NOTCH ~133.35 mm DDR4 RDIMM | 8GB | — | PC4 Notch position = DDR4 generation | DDR3/DDR4/DDR5 physically incompatible RDIMM = Registered (servers) | LRDIMM = Load-Reduced | UDIMM = Unbuffered TITLE DDR4 RDIMM PN 78P0555 MFR IBM 8GB —
KEY FEATURES
•
8GB 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
49Y1397Compatible
IBM 8Gb PC3L-10600R 1333Mhz ECC REG DR x4 CAS-9 LV (1x8Gb) Memory Kit for M3/M4 - Option
compatible
47J0136Compatible
IBM 8GB Pc3l-10600r 1333MHZ ECC Reg Dr X4 Cas-9 Lv Dimm - P/n
compatible
49Y1379Compatible
IBM 8Gb PC3L-10600R 1333Mhz ECC REG DR x4 CAS-9 LV (1x8Gb) Memory Kit for M3/M4 - SBB
compatible
49Y1415Compatible
IBM 8GB Pc3l-10600r 1333MHZ ECC Reg Dr X4 Cas-9 Lv Dimm - Fru
compatible
49Y3778Compatible
IBM 8Gb PC3L-10600R 1333Mhz ECC REG DR x4 CAS-9 LV (1x8Gb) Memory Kit - Option
compatible
LIFECYCLE
StatusUNKNOWN
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 5
47J0136SUBSTITUTE
IBM 8Gb PC3L-10600R 1333Mhz ECC REG DR x4 CAS-9 LV DIMM - FRU
IBM
49Y1379SUBSTITUTE
IBM 8Gb PC3L-10600R 1333Mhz ECC REG DR x4 CAS-9 LV DIMM - FRU
IBM
49Y1397SUBSTITUTE
IBM 8Gb PC3L-10600R 1333Mhz ECC REG DR x4 CAS-9 LV DIMM - FRU
IBM
49Y1415SUBSTITUTE
IBM 8Gb PC3L-10600R 1333Mhz ECC REG DR x4 CAS-9 LV DIMM - FRU
IBM
49Y3778SUBSTITUTE
IBM 8Gb PC3L-10600R 1333Mhz ECC REG DR x4 CAS-9 LV DIMM - FRU
IBM
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FREQUENTLY ASKED QUESTIONS
What is 78P0555?
78P0555 is a IBM 8GB 1x8gb Pc3l-10600r 2Rx4 Dimm manufactured by IBM.
What parts can replace 78P0555?
There are 5 known substitutes for 78P0555: 49Y1397, 47J0136, 49Y1379 and 2 more. Substitute compatibility should be verified for your specific system.
Is 78P0555 still available?
78P0555 is currently Unknown.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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Last verified: July 2026