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PartsTable / MEMORY / 55Y3708
55Y3708 ✓ 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
4GB PC3-8500 DDR3-1066

Improve overall performance of ThinkPad systems by upgrading with additional memory. PC3-8500 DDR3-1066 low-halogen SODIMM memory offers maximum data transfer rates up to 1066MB/sec to help you increased performance of memory intensive applications such as streaming video, graphics and CAD programs. Adding more system memory is one of the least expensive ways to help boost overall notebook system performance and allows more multitasking which saves time and hassle.<br>- Lower 1.5V power consumption, compared to older 1.8V DDR2 memory, extends battery life Improved system-level thermal management that further reduces power drain <br>- Test-proven 100% compatibility listed for supported ThinkPad systems<br>- Lenovo limited warranty<br>- Lenovo memory installed in a new Lenovo system automatically assumes system warranty

WHERE IT FITS
MEMORY→ RDIMM→ 55Y3708
SPECIFICATIONS
Depth32 mm
Width68 mm
Height4 mm
Weight2 g
Internal memory4 GB
Data transfer rate1066 Mbit/s
Memory form factor204-pin SO-DIMM
Internal memory typeDDR3
COMPONENT DIAGRAM
ECC 4GB 2Rx4 PC3 — RDIMM IBM NOTCH ~133.35 mm DDR3 RDIMM | 4GB | — | PC3 Notch position = DDR3 generation | DDR3/DDR4/DDR5 physically incompatible RDIMM = Registered (servers) | LRDIMM = Load-Reduced | UDIMM = Unbuffered TITLE DDR3 RDIMM PN 55Y3708 MFR IBM 4GB —
KEY FEATURES
•
Up to 4 GB
•
DDR3 Interface
•
4GB 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES

No verified substitutes available.

LIFECYCLE
StatusUNKNOWN
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 55Y3708?
55Y3708 is a 4GB Pc3-8500 DDR3-1066 manufactured by IBM. It is classified as a MEMORY (RDIMM).
Is 55Y3708 still available?
55Y3708 is currently Unknown.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026