The ThinkStation S20/D20 PC3-8500 1066MHz and PC3-10600 1333MHz DDR3 ECC UDIMM memory offerings let you upgrade standard system memory capacity to improve overall system performance. Features and benefits include:

• Test-proven 100% compatibility on listed ThinkStation systems
• Meets stringent ThinkStation reliability standards for memory products
• Lenovo Limited Warranty
• Authenticity seal on every memory module

Offerings:

• 1GB PC3-8500 1066MHz DDR3 ECC UDIMM Memory (51J0503)
• 2GB PC3-8500 1066MHz DDR3 ECC UDIMM Memory (51J0504)
• 1GB PC3-10600 1333MHz DDR3 ECC UDIMM Memory (43R2032)
• 2GB PC3-10600 1333MHz DDR3 ECC UDIMM Memory (43R2033)
• 4GB PC3-10600 1333MHz DDR3 ECC UDIMM Memory (57Y4138)

Performance specifications:

• DDR3 memory offers higher bandwidth and increased performance at low power
• DDR3 offers data transfer rates up to 1600 Mbps
• Lower power consumption of 1.5 volts instead of of 1.8 volts by DDR2 memory
• Error Correcting Code (ECC) for greater data integrity and system uptime by protecting against errors in memory
• DDR3 provides an 8-bit prefetch buffer, compared to the 4-bit buffer for DDR2, storing more data before it is needed
• Integrated thermal sensor on the DIMM module signals the chip set to throttle memory traffic to the DIMM if its temperature exceeds a programmable critical trip point
• 240-pin JEDEC/EIA standard UDIMM interface
• Gold-plated leads

Physical specifications:

• Approximate height: 8 mm (0.3 in)
• Approximate width : 134 mm (5.3 in)
• Approximate depth : 30 mm (1.2 in)
• Approximate weight: 0.1 kg (0.2 lb)

Operating environment:

• Temperature: 0 deg to 55 deg C (32 deg to 131 deg F)
• Relative humidity: 10% to 90%

3 year - Customer Replacement Unit (CRU) Service

2GB PC3-8500 (51J0504), 2GB PC3-10600 (43R2033):

• Announce Date: March 2009 (Worldwide)
• Availability Date: April 2009 (Worldwide)

1GB PC3-8500 (51J0503), 1GB PC3-10600 (43R2032):

• Announce Date: March 2009 (Worldwide)
• Availability Date: April 2009 (Worldwide)
• Discontinued, no longer available: August 2010

4GB PC3-10600 (57Y4138):

• Announce Date: August 2009 (Worldwide)
• Availability Date: August 2009 (Worldwide)

• Memory module: 1 GB or 2 GB or 4 GB
• Publication