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46W0813 ✓ Verified by PartsTable
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: Check OEM alternatives — all RAM is Hynix/Samsung/Micron underneath. Double-check what you're quoting in volatile market.
HOT market — DDR5/DDR4 extremely volatile
PRODUCT OVERVIEW

The 46W0813 is a IBM industrial component. 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→ 46W0813
SPECIFICATIONS
Part Number46W0813
ManufacturerIBM
COMPONENT DIAGRAM
ECC — 2Rx4 PC4 — RDIMM IBM NOTCH ~133.35 mm DDR4 RDIMM | — | — | PC4 Notch position = DDR4 generation | DDR3/DDR4/DDR5 physically incompatible RDIMM = Registered (servers) | LRDIMM = Load-Reduced | UDIMM = Unbuffered TITLE DDR4 RDIMM PN 46W0813 MFR IBM — —
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
00NU564Compatible
IBM 8GB PC4-2133P-E ECC Ub Dr X8 Cas-15 Dimm - P/n
compatible
46W0812Compatible
IBM 8Gb PC4-2133P-E ECC UB DR x8 CAS-15 (1x8Gb) Memory Kit for x3250 M6 - SBB
compatible
46W0815Compatible
IBM 8GB PC4-2133P-E ECC Ub Dr X8 Cas-15 Dimm - Fru
compatible
LIFECYCLE
StatusUNKNOWN
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 3
00NU564SUBSTITUTE
IBM 8Gb PC4-2133P-E ECC UB DR x8 CAS-15 (1x8Gb) Memory Kit for x3250 M6 - Option
IBM
46W0812SUBSTITUTE
IBM 8Gb PC4-2133P-E ECC UB DR x8 CAS-15 (1x8Gb) Memory Kit for x3250 M6 - Option
IBM
46W0815SUBSTITUTE
IBM 8Gb PC4-2133P-E ECC UB DR x8 CAS-15 (1x8Gb) Memory Kit for x3250 M6 - Option
IBM
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FREQUENTLY ASKED QUESTIONS
What is 46W0813?
46W0813 is a 46W0813 manufactured by IBM. It is classified as a MEMORY (RDIMM).
What parts can replace 46W0813?
There are 3 known substitutes for 46W0813: 00NU564, 46W0812, 46W0815. Substitute compatibility should be verified for your specific system.
Is 46W0813 still available?
46W0813 is currently Unknown.
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Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
Last verified: July 2026