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540-5849 ✓ Verified by PartsTable
SUN · PROCESSOR · INTEL_XEON
WHAT YOU NEED TO KNOW
Intel Xeon processors — standard item. Cross-sell heatsink and fan.
PRODUCT OVERVIEW

SUN 4x 1.2GHz USIII CPU/Memory Board. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 7021-01-516-5410, 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
PROCESSOR→ INTEL_XEON→ 540-5849
NSN: 7021-01-516-5410
FSC: 7021 — COMPUTER,DIGITAL
CAGE: 0D5T0 — SUN MICROSYSTEMS FEDERAL, INC. DBA SUN MICROSYSTEMS FEDERAL, INC. (USA)
SPECIFICATIONS
Part Number540-5849
ManufacturerSUN
NSN7021-01-516-5410
COMPONENT DIAGRAM
PIN 1 SERVER CPU PROCESSOR LGA/SP SOCKET 76.0 mm 56.5 mm LGA/SP SOCKET — Server CPU Pin 1 alignment triangle IHS — Nickel-plated copper Thermal interface to heatsink TDP — 35W to 400W Bronze / Silver / Gold / Platinum CONTACT — LGA pads Socket-side pins (not on CPU) TITLE SERVER CPU PN 540-5849 MFR SUN SUN 4x 1.2GHz USIII CPU/Memory Board
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
TECHNICAL CHARACTERISTICS (FLIS)
PART NAME ASSIGNED BY CONTROLLING AGENCY1.2GHZ CPU-4 PROC USII (W/8 GB OF DIMM MEMORY) GB
END ITEM IDENTIFICATIONUSER REQUEST EVALUATION TOOL (URET)
VERIFIED SUBSTITUTES & CROSS-REFERENCES 1
540-5981Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 540-5849?
540-5849 is a SUN 4x 1.2GHz USIII CPU/Memory Board manufactured by SUN. It is classified as a PROCESSOR (INTEL_XEON).
What parts can replace 540-5849?
There is 1 known substitute for 540-5849: 540-5981. Substitute compatibility should be verified for your specific system.
What is the NSN for 540-5849?
540-5849 is cataloged in the Federal Logistics Information System (FLIS) under NSN 7021-01-516-5410. This indicates validated use in U.S. government and defense supply chains.
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Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
Last verified: July 2026