ThinkServer PC3-8500 DDR3 1066MHz memory is meant to provide customers with the ability to improve overall performance of ThinkServer systems while providing the flexibility to scale to your growing needs. DDR3 memory technology does not require memory pairing. Thus, it is easy to scale with your computing needs by adding additional memory more efficiently through single DIMM offerings. Also, this memory is a power-friendly alternative with low-power consumption - making it the most cost-effective memory solution available.

UDIMM versus RDIMM positioning:

• UDIMMs are typically cheaper than RDIMMs
• For 1 DIMM per memory channel, UDIMMs have slightly better memory bandwidth (0.5 %) than RDIMMs
• For 2 DIMM per memory channel, RDIMMs have significantly better memory bandwidth (8.7%) than UDIMMs
• For the same capacity, RDIMMs will require .5 to 1.0W per DIMM more than UDIMMs
• RDIMMs provide additional RAS such as address / control signal parity detection
• RDIMMs can correct all DRAM device errors (x4 DRAMs)
• ThinkServer UDIMMs are currently limited to 1 GB and 2 GB
• UDIMMs are limited to 2 DIMMs per memory channel

Offering:

• ThinkServer 4GB PC3-8500 1Gbit DDR3 1066MHz RDIMM Memory (67Y0125)

Performance specifications:

• Speed: 1066 MHz
• Pins: 240
• Pin Alloy: Gold
• Parity: ECC
• RAM Type: DDR3 RDIMM

Power and component:

• 4 GB is quad rank by 8
• 1.5V Input Voltage

Physical specifications (4 rank memory):

• Approximate height: 30.5 mm (1.2 in)
• Approximate depth: 4.0 mm (0.157 in)
• Approximate width: 133.35 mm (5.25 in)
• Approximate weight: 0.1 kg (0.2 lb)

Operating environment:

• Temperature: 0 deg to 95 deg C (32 deg to 203 deg F)
• Relative humidity: 10% to 90% (non-condensing)

3 year - Customer Replacement Unit (CRU) Service

• Announce date: 24 Nov 2009 (country listing)
• Availability date: 24 Nov 2009 (country listing)
• Effective withdrawal date: 30 Dec 2011

• Memory module
• Warranty flyer