At a glance

This SODIMM offering lets you upgrade standard system memory capacity, improving overall system performance. Features and benefits include:

• Test-proven 100% compatibility on systems indicated in the "Hardware Requirements" section
• Meets stringent reliability standards for memory products
• Fast access time -- synchronous to processor's front-side bus clock
• 144-pin SODIMM with gold-plated leads
• Serial presence detect/decode functions
• Limited warranty

Overview

Help improve the overall performance of your ThinkPad T23 systems with the 64MB, 128MB, 256MB and 512MB PC133 Non-Parity Synchronous Dynamic Random Access Memory (SDRAM) SODIMM Memory upgrades. SDRAM enables faster performance than either traditional fast page mode (FPM) or hyper-page mode (EDO) memory. Adding additional memory is a cost-effective way to improve your system's performance.

Warranty

3 year limited - CCE

Packaging

You will receive one box containing the following items:

• 64MB, 128MB, 256MB or 512MB PC133 Non-Parity SDRAM SODIMM Memory
• Publication

Product marketing and replacement part numbers (FRU)

Worldwide

• Description: 64MB PC 133 Non-Parity SDRAM SODIMM Memory
• Marketing part number: 19K4650
• Replacement part number: 19K4651

• Description: 128MB PC 133 Non-Parity SDRAM SODIMM Memory
• Marketing part number: 19K4652
• Replacement part number: 19K4653

• Description: 256MB PC 133 Non-Parity SDRAM SODIMM Memory
• Marketing part number: 19K4654
• Replacement part number: 19K4655

• Description: 512MB PC 133 Non-Parity SDRAM SODIMM Memory
• Marketing part number: 19K4656
• Replacement part number: 19K4657

Product dates

Worldwide

• Announce date: 31 Jul 2001
• Planned availability date: 31 Jul 2001
• Effective withdrawal date: 03 Jan 2006 ( 19K4654, 19K4656)

Technical specifications

Performance specifications as known at time of announcement

• PC133 Synchronous DRAM (SDRAM)
• Non-parity mode organized as 8M x 64, 16M x 64, 32M x 64 and 64M x 64 respectively
• Serial presence detect/decode
• 144-pin JEDEC/JEDIA standard SODIMM interface
• Gold-plated leads

Physical, environmental, and compatibility specifications as known at time of announcement

Height

• inches: 0.15 in
• mm: 3.8

• inches: 2.66
• mm: 67.6

• inches: 1.25
• mm: 31.7

Operating temperature

• Between 0 degrees celsius and 65 degrees celsius
• Between 32 degrees fahrenheit and 150 degrees fahrenheit

Relative humidity

• Operating: between 10% and 90%

Agency approvals

None

ENERGY STAR-Compliant

No

Hardware requirements

The 64MB, 128MB, 256MB and 512MB PC133 Non-Parity SDRAM SODIMM Memory Upgrades are supported on the following systems:

• Machine Type: 2647, 2648
• Description: ThinkPad T23
• Model: All

Hardware requirements for other systems

The 64MB, 128MB, 256MB, and 512MB PC133 Non-Parity SDRAM SODIMM Memory Upgrades are supported on systems that support industry standard SDRAM to the PC133 specification.

Software requirements

None

Supported operating systems

None

Compatibility

NOTE: Some configurations may not be compatible.

Limitations

NOTE: Some configurations may not be supported.

Supported software

Not applicable

Other

Cable orders required

None

Installation time

Approximately 5 minutes

NOTES:

1. The symbol * means that the information is currently unavailable for this product.
2. FRU stands for Field Replacement Unit. It is the part number used for ordering service/replacement parts.
3. Effective Withdrawal means that on the given date the products will have been withdrawn from marketing. After that date, the product can not be obtained directly.