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90Y3103 — Memory Specs & Substitutes

Lenovo · 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

Lenovo 90Y3103 memory module 32 GB 1 x 32 GB DDR3 240-pin DIMM ECC. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
90Y3103
SPECIFICATIONS
Part Number90Y3103
ManufacturerLenovo
InterfaceDDR3
Capacity32GB
FITS THESE MACHINES
Lenovo System x x3690 X5
Lenovo System x3850 X5
COMPONENT DIAGRAM
ECC 32GB 2Rx4 PC3 — RDIMM Lenov NOTCH ~133.35 mm DDR3 RDIMM | 32GB | — | PC3 Notch position = DDR3 generation | DDR3/DDR4/DDR5 physically incompatible RDIMM = Registered (servers) | LRDIMM = Load-Reduced | UDIMM = Unbuffered TITLE DDR3 RDIMM PN 90Y3103 MFR Lenovo 32GB —
KEY FEATURES
•
DDR3 Interface
•
32GB Capacity
•
DDR3 Memory
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
90Y3101CompatiblePARTNER
IBM 32Gb PC3L-8500R 1066Mhz ECC REG QR x4 CAS-7 LV (1x32Gb) Memory Kit for x3850/x3950 X5 - Option
compatible
90Y4300CompatiblePARTNER
IBM 32GB Pc3l-8500r 1066MHZ ECC Reg Qr X4 Cas-7 Lv Dimm - P/n
compatible
LIFECYCLE

No lifecycle data available.

THIS PART SUBSTITUTES FOR 2
90Y3101SUBSTITUTE
IBM 32Gb PC3L-8500R 1066Mhz ECC REG QR x4 CAS-7 LV DIMM - FRU
IBM
90Y4300SUBSTITUTE
IBM 32Gb PC3L-8500R 1066Mhz ECC REG QR x4 CAS-7 LV DIMM - FRU
IBM
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FREQUENTLY ASKED QUESTIONS
What is 90Y3103?
90Y3103 is a Lenovo 90Y3103 memory module 32 GB 1 x 32 GB DDR3 240-pin DIMM ECC manufactured by Lenovo.
What parts can replace 90Y3103?
There are 2 known substitutes for 90Y3103: 90Y3101, 90Y4300. Substitute compatibility should be verified for your specific system.
Is 90Y3103 still available?
90Y3103 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.