IBM ThinkPad T42 2374
Model Specifications
Memory Type
Memory Speed
Memory Slot(s)
Max. Memory Per Slot
Max. Memory Per System
Standard Memory
Dual Channel Memory Support
Tri-Channel Memory Support
Install Memory in Pairs
1024MB (1GB)
2048MB (2GB)
512MB Removable
Not Support
Not require to install in pairs
IBM ThinkPad T42 2374
Available Modules
IBM ThinkPad T42 2374
Email This Page
Print This Page
Click to Enlarge
256MB PC2700Mhz DDR for IBM ThinkPad T42 2374
Currently in Stock

Click to Enlarge
512MB PC2700Mhz DDR for IBM ThinkPad T42 2374
Currently in Stock

Click to Enlarge
1GB PC2700Mhz DDR for IBM ThinkPad T42 2374
Currently in Stock

Click to Enlarge
2GB Kit (2x1GB) PC2700Mhz DDR for IBM ThinkPad T42 2374
Currently in Stock

Didn’t find your system?

Why choose Black Diamond for your memory upgrades?

Black Diamond Computer Memory Upgrades for the IBM ThinkPad T42 2374are engineered to exact OEM specifications using only top-grade components. Black Diamond memory sticks provide maximum power, speed, quality and reliability. OKmemory guarantees 100% performance and compatibility with your IBM ThinkPad T42 2374.
The quality of all Black Diamond products is highlighted by our ISO 9001:2000 certification and is the foundation for us surpassing our customer’s expectations. Our compatibility lab currently is home to over 300 unique systems and ensures that each RAM module is double tested to guarantee 100% compatibility.
  • 100% Guaranteed Compatibility
  • Manufactured to Exact RAM OEM Specifications
  • Toll-Free Technical Support
  • Lifetime Warranty

Video Installation Guide

General Installation Guides

HTML Laptop Memory Installation (General)
Install laptop
OR, choose the appropriate installation guide for your IBM ThinkPad T42 2374 or see our How To Install Computer Memory Guide. Handout for Memory Installation Guide
Memory Upgrade Installation Guide in pdf
Memory Upgrade Installation Guide in jpg

General questions about upgrading memory

What is memory?
Memory or RAM is a piece of hardware in your IBM ThinkPad T42 2374 that holds software applications that you are working on. It serves as temporary working space between your computer's hard drive and CPU.

Why add memory to my computer?
Adding memory will improve your IBM ThinkPad T42 2374's performance. Specifically, it will speed up opening new applications, running multiple applications at once, and switching between software applications (multi-tasking).

How does additional memory improve performance?
One task that additional memory speeds up is opening a new software application. Let's take this as an example. When you open a new application on your IBM ThinkPad T42 2374, your computer's CPU fetches the application from the hard drive and stores it in RAM memory. It stores it in RAM because RAM is very fast relative to the hard drive. When RAM gets full, and you open a new application then the CPU needs to kick out one of your open applications, put it back on the slow hard drive, fetch the new application from the hard drive, and place the new application in RAM. Basically, it swaps the applications.
This game of swapping wastes time. Ideally, your computer could have an infinite amount of RAM. Then your CPU would fetch an application once from the hard drive, save it into RAM, and never need to kick out another application. There is no such thing as infinite RAM, but you can max out the RAM on your computer by adding the maximum amount of memory to each socket.

How do I max out the memory on my system?
The maximum RAM your IBM ThinkPad T42 2374 can support is 2048MB (2GB), and your system has 2 sockets.
To max out your RAM memory, add the maximum amount of memory to each memory socket.To find out how much RAM each socket can support, divide the system maximum RAM amount by the total number of sockets in your system. For example, if your system maximum RAM is 2GB, and your system has 2 total sockets then the maximum amount each socket can support is 1GB. If one of the sockets is already filled then you can always remove the existing module and replace it with a higher capacity module.

Will adding memory void my warranty?
No. The 1975 Magnusson-Moss Act prevents OEM manufacturers from disqualifying a warranty when 3rd party memory is used. For more details, please see the Magnuson-Moss Act.

What is memory speed?
Memory speed refers to the amount of time that memory (RAM) takes to put data into its memory or send it out. Your device's memory will have an upper limit on the speed at which it can operate.

What is a memory kit?
A memory kit is a number of memory modules sold as a unit or a kit. For example, a 1GB memory kit will contain two 512MB modules. This is written as (2x512MB).

What is the difference between RAM & Hard Drive Memory?
RAM and hard drive disk space are both referred to as memory which can be confusing. RAM is a series of memory sticks in your computer that temporarily holds software applications and documents that you are working on, prior to saving it. Once saved, the documents or software applications are saved permanently on your hard drive. If you are running low on disk space on your hard drive you can consider purchasing a portable hard drive or flash drives to store your files on.

About your IBM ThinkPad

What type of memory do I need?
Your IBM ThinkPad uses PC2700 type memory.

What is the maximum amount of memory that I can add?
Your IBM ThinkPad can support up to 2048MB (2GB) of computer memory. For optimal performance install the maximum amount of memory in each socket.

How much memory does my system have now?
Your system comes standard with 512MB of RAM. If you have upgraded your system then you may have a different amount.

What are banks and sockets?
A bank is a group of memory sockets. A socket is where a memory module is inserted. A bank can have one or more sockets.

One or more of the sockets in your system is already filled with memory. When you upgrade your system, you can either add memory to one of the open sockets and/or remove memory from a filled socket and replace it with a higher capacity memory module.

How many banks and sockets does my IBM ThinkPad have?
Your IBM ThinkPad T42 2374 has 2 banks of 2 sockets each for a total of 2 memory sockets.

Is there anything else I should consider prior to upgrading my IBM ThinkPad memory?
- Although the BIOS will address 2048MB (2GB) of memory, the amount available to the system will be less than 2048MB (2GB) depending on computer resources.

How do I know that Black Diamond memory will work with my system?
OKmemory tests each RAM module to ensure compatiblity with your IBM ThinkPad system. The memory modules listed above are guaranteed to work in your IBM ThinkPad T42 2374. Learn more on how to install memory in a IBM ThinkPad T42 2374.