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ThinkPad 100MHz SDRAM Non-Parity SODIMM Memory - Product Overview
General information
Obtain the benefits of a memory upgrade for your ThinkPad system with 32 MB, 64 MB, and 128 MB 100 MHz Non-Parity (NP) SDRAM Small Outline DIMM (SODIMM) upgrades.

SDRAM enables the memory upgrade to perform faster than either traditional fast page mode (FPM) or Extended Data Out (EDO) memory modes of operation.

SDRAM SODIMM features access times that are synchronous to the system bus clock.

Key prerequisites
ThinkPad 390X, 600X, 570E, A20, A21, A22 Series, T20, T21, T22 Series, X20, X21 Series, i Series 1200, 1300, 178x, and industry standard systems that support industry standard SDRAM SODIMMs to the PC 100 memory module specifications.

At a glance
Increase the memory of your ThinkPad system with the 32 MB, 64 MB, or 128 MB 100 MHz NP SDRAM SODIMM upgrades. Features include:
  • Guaranteed compatibility
  • Meet or exceed reliability standards for memory products
  • Fast access time -- synchronous to the memory bus
  • 144-pin SODIMM with gold-plated leads
  • Three-year limited warranty(1)
(1) For information on and copies of the limited warranty, call 800-426-7378 or contact your reseller.

Warranty
3 year limited Customer Carry-In Exchange

Packaging
One box containing...
  • 100 MHz NP SDRAM So DIMM
  • Publication

Product Marketing and FRU Part Number(s)
32MB 100MHz NP SDRAM SODIMM
Marketing part number: 20L0253
FRU part number: 20L0263
Applicable location(s): World Wide
UPC / EAN Code: 0-87944-48085-3
Withdrawal date: 26 Jun 2001
Effective withdrawal date: 26 Jun 2001
This product (20L0253) replaced by 64MB 100MHz NP SDRAM SODIMM (20L0254)


64MB 100MHz NP SDRAM
SODIMM
Marketing part number: 20L0254
FRU part number: 20L0264
Applicable location(s): World Wide
UPC / EAN Code:0-87944-48086-0

128MB 100MHz NP SDRAM
SODIMM
Marketing part number: 20L0255
FRU part number: 20L0265
Applicable location(s): World Wide
UPC / EAN Code:0-87944-48087-7

Product Dates
World Wide
Announce Date: 09/20/1999
Planned Availability Date: 09/28/1999
Withdrawal date: 26 Jun 2001 (part number 20L0253 only)
Effective withdrawal date:
26 Jun 2001 (part number 20L0253 only)

Technical Specifications
Performance Specifications as known at time of announcement
32MB 100MHz NP SDRAM
SODIMM

  • 100MHz Synchronous DRAM (SDRAM)
  • One-bank memory design organized as 4M x 64
  • Low-power consumption DRAM
  • Serial presence detect/decode
  • 144-pin JEDEC/JEDIA standard SODIMM interface
  • Gold-plated leads
64MB 100MHz NP SDRAM SODIMM
  • 100MHz Synchronous DRAM (SDRAM)
  • Two-bank memory design organized as 8M x 64
  • Low-power consumption DRAM
  • Serial presence detect/decode
  • 144-pin JEDEC/JEDIA standard SODIMM interface
  • Gold-plated leads
128MB 100MHz NP SDRAM SODIMM
  • 100MHz Synchronous DRAM (SDRAM)
  • Two-bank memory design organized as 16M x 64
  • Low-power consumption DRAM
  • 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: 2.66 inches (67.6 mm)
Width: 0.16 inches (4.0 mm)
Depth: 1.0 inches (25.4 mm)

Operating Temperature
  • between 10 degrees Celsius and 35 degrees Celsius
  • between 50 degrees Fahrenheit and 95 degrees Fahrenheit
Relative Humidity
  • Operating: 80%
Hardware Requirements
NameMachine typeModel
ThinkPad 390X, i Series 178x2626, 2627 All
ThinkPad 600X 2645, 2646 All
ThinkPad 570E2643, 2644, 2653All
ThinkPad A20, A21, A22 Series2628, 2629, 2633, 2655All
ThinkPad T20, T21, T22 Series2647, 2648All
ThinkPad X20, X21 Series2660, 2661, 2662All
ThinkPad iSeries 1200, 13001161, 1171All

Hardware Requirements for other systems
The 32MB 100MHz NP SDRAM SODIMM is supported on systems that support industry standard SDRAM SODIMMs to the PC100 memory module specifications.

Limitations
Some configurations may not be supported.
The 32MB 100MHz NP SDRAM SODIMM is not supported on the ThinkPad A Series, ThinkPad T Series, and ThinkPad X Series.

Document Note(s)

  1. The symbol * is used to denote that the information is currently unavailable for this product.
  2. All dates are represented in the US English format of mm/dd/yyyy (where mm=month, DD=day, yyyy=year).
  3. FRU stands for Field Replacement Unit. It is the part number used for ordering service/replacement parts.
  4. 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.


If you are unable to find what you are looking for, please do try the following options:
1. Lenovo Assisted Search
2. Product usage and general troubleshooting tips
3. Lenovo Support Forum
4. Technical Support Call Centre

Dokument-ID : PD000720
Legacy Document ID : MIGR-4BXJZY
Zuletzt aktualisiert :
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