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Refurbished Intel Xeon X5550 quad-core processor in OEM packaging

IBM Refurbished

IBM 44E5181 Xeon X5550 2.66 GHz processor upgrade

SKU CH-GZB8-1KM5M MPN 44E5181

Quad-core Xeon processor upgrade running at 2.66 GHz with 8 MB L3 cache and 95 W TDP

  • Plug typeProcessor Upgrade
  • Quad-core design enables parallel workloads
  • 66 GHz base clock drives responsive compute
  • 8 MB L3 cache reduces memory latency
  • 95 W TDP balances performance with efficiency
  • Socket B LGA-1366 fits compatible server boards

IBM Xeon X5550 Processor Upgrade

The IBM 44E5181 is a refurbished Intel Xeon 5500 series processor upgrade for compatible servers. It delivers four cores running at 2.66 GHz with a 6.40 GT/s QuickPath Interconnect. This unit suits administrators refreshing Socket B LGA-1366 platforms that require the X5550 model specifically.

Thermals Power and Noise

The processor carries a 95 W thermal design power and operates at a 1.4 V DC input voltage. The 45 nm process technology helps manage heat output within the rated envelope. Acoustic behaviour depends entirely on the server chassis and cooling solution installed by the integrator.

Socket B LGA-1366 Compatibility

This upgrade fits only systems with a Socket B LGA-1366 interface and appropriate BIOS support for the 5500 series. It will not work in platforms requiring a different socket or generation. Verify the server qualification list before purchase to avoid fitment issues.

How it compares

Measured against everything we stock in Switch Modules, Transceivers & Add-Ons, at today’s prices. Recalculated every night.

Price $122.99
Pricier than about 67% of the 1,517 comparable items (median $68.99).

Specifications

Product
Brand nameIBM-IMSourcing
Power
Plug typeProcessor Upgrade
Size & build
Shipping weight0.91 kg
Package size127 × 127 × 51 mm

Questions about this item

How is the Xeon X5550 installed in a Socket B LGA-1366 server, and what step is often missed?

Align the processor notches with the socket keys, lower it straight down without pressure, then close the load plate and engage the lever; the step often missed is applying a thin, even layer of thermal paste before mounting the heatsink.

What maintenance or replacement will the Xeon X5550 need later?

The 95 W thermal design power means the heatsink and fan assembly must be kept dust-free; plan to replace thermal paste every two to three years and verify fan operation during routine server cleaning.

What limit appears first when the Xeon X5550 runs sustained workloads?

The 95 W TDP combined with the 1.4 V DC input voltage creates a thermal ceiling; if cooling cannot dissipate 95 W continuously, the processor will throttle to stay within its thermal envelope.

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