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78P4198 — Memory Specs & Substitutes

✓ Government record, cited
IBM · MEMORY · RDIMM
WHAT YOU NEED TO KNOW
Memory is a hot market right now. DDR5 and DDR4 are extremely volatile with data centers driving availability to extreme lows. Always validate machine type and model. Remember: all RAM is Hynix, Samsung, or Micron underneath OEM labels — use that to find alternatives. Key checks: Double-check what you're quoting in volatile market.
HOT market — DDR5/DDR4 extremely volatile
PRODUCT OVERVIEW

IBM 32Gb DDR4 2666MHz RDIMM Memory P9. This part is cataloged in the U.S. Government catalog under NSN 5998-01-710-7771, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
MEMORY→ RDIMM→ 78P4198
NSN: 5998-01-710-7771
FSC: 5998 — Electrical and Electronic Assemblies, Boards, Cards, and Associated Hardware
CAGE: 1U0E6 — IBM (USA)
SPECIFICATIONS
Part Number78P4198
ManufacturerIBM
InterfaceDDR4
Capacity32GB
Speed2666MHz
NSN5998-01-710-7771
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COMPONENT DIAGRAM
ECC 32GB 2Rx4 PC4 2666MHz RDIMM IBM NOTCH ~133.35 mm DDR4 RDIMM | 32GB | 2666MHz | PC4 Notch position = DDR4 generation | DDR3/DDR4/DDR5 physically incompatible RDIMM = Registered (servers) | LRDIMM = Load-Reduced | UDIMM = Unbuffered TITLE DDR4 RDIMM PN 78P4198 MFR IBM 32GB 2666MHz
KEY FEATURES
•
DDR4 Interface
•
32GB Capacity
•
2666MHz Speed
•
DDR4 RDIMM
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
OTHER ITEMS IN FSC 5998 — Electrical and Electronic Assemblies, Boards, Cards, and Associated Hardware
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5998-00-000-0087 5998-00-000-0089 5998-00-000-0154 5998-00-000-0173 5998-00-000-0175 5998-00-000-0177 5998-00-001-1267 5998-00-001-1271
SUBSTITUTES & CROSS-REFERENCES 2
EM63SubstituteBROKER-VERIFIED
IBM 32Gb DDR4 2666MHz RDIMM Memory P9
substitute
78P4191SubstituteBROKER-VERIFIED
IBM 32Gb DDR4 2666MHz RDIMM Memory P9
substitute
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 78P4198?
78P4198 is a IBM 32Gb DDR4 2666MHz RDIMM Memory P9 manufactured by IBM. It is classified as a MEMORY (RDIMM).
What parts can replace 78P4198?
There are 2 known substitutes for 78P4198: EM63, 78P4191. Substitute compatibility should be verified for your specific system.
Is 78P4198 still available?
78P4198 is currently Unknown.
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