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47J0221 ✓ Verified by PartsTable
LENOVO · 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

Lenovo 8GB 1RX4 PC3-14900R DDR3-1866MHZ RDIMM. Key specifications include ECC: Yes, CAS latency: 13, Component for: PC/Server, Memory voltage: 1.5 V, Internal memory: 8 GB, Memory clock speed: 1866 MHz. 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→ 47J0221
SPECIFICATIONS
ECCYes
CAS latency13
Component forPC/Server
Memory ranking1
Memory voltage1.5 V
Internal memory8 GB
Memory clock speed1866 MHz
Memory form factor240-pin DIMM
Buffered memory typeRegistered (buffered)
Internal memory typeDDR3
Storage temperature (T-T)-25 - 95 °C
Operating temperature (T-T)0 - 85 °C
COMPONENT DIAGRAM
ECC 8GB 2Rx4 PC3 1866MHz RDIMM LENOV NOTCH ~133.35 mm DDR3 RDIMM | 8GB | 1866MHz | PC3 Notch position = DDR3 generation | DDR3/DDR4/DDR5 physically incompatible RDIMM = Registered (servers) | LRDIMM = Load-Reduced | UDIMM = Unbuffered TITLE DDR3 RDIMM PN 47J0221 MFR LENOVO 8GB 1866MHz
KEY FEATURES
•
Up to 8 GB
•
DDR3 Interface
•
8GB Capacity
•
1866MHz Speed
•
DDR3 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
00D5032Compatible
IBM 8Gb PC3-14900R 1866Mhz ECC REG SR x4 CAS-13 (1x8Gb) Memory Kit Intel v1/v2 for M4 - Option
compatible
00D5033Compatible
IBM 8Gb PC3-14900R 1866Mhz ECC REG SR x4 CAS-13 (1x8Gb) Memory Kit Intel v1/v2 for M4 - PPN
compatible
00D5034Compatible
IBM 8GB Pc3-14900r 1866MHZ ECC Reg Sr X4 Cas-13 (1gx72) Dimm - Fru
compatible
00FE686Compatible
IBM 8Gb PC3-14900R 1866Mhz ECC REG SR x4 CAS-13 (1x8Gb) Memory Kit Intel v1/v2 for M4 - Option
compatible
LIFECYCLE
StatusUNKNOWN
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 4
00D5032SUBSTITUTE
IBM 8Gb PC3-14900R 1866Mhz ECC REG SR x4 CAS-13 (1Gx72) DIMM - P/N
IBM
00D5033SUBSTITUTE
IBM 8Gb PC3-14900R 1866Mhz ECC REG SR x4 CAS-13 (1Gx72) DIMM - P/N
IBM
00D5034SUBSTITUTE
IBM 8Gb PC3-14900R 1866Mhz ECC REG SR x4 CAS-13 (1Gx72) DIMM - P/N
IBM
00FE686SUBSTITUTE
IBM 8Gb PC3-14900R 1866Mhz ECC REG SR x4 CAS-13 (1Gx72) DIMM - P/N
IBM
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FREQUENTLY ASKED QUESTIONS
What is 47J0221?
47J0221 is a Lenovo 8GB 1RX4 PC3-14900R DDR3-1866MHZ RDIMM manufactured by LENOVO. It is classified as a MEMORY (RDIMM).
What parts can replace 47J0221?
There are 4 known substitutes for 47J0221: 00D5032, 00D5033, 00D5034 and 1 more. Substitute compatibility should be verified for your specific system.
Is 47J0221 still available?
47J0221 is currently Unknown.
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Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
Last verified: July 2026