Want to protect your cyber security and still get fast solutions? Ask a secure question today.Go Premium


Can PC2100 RAM be used to replace PC2100U?

Posted on 2009-02-10
Medium Priority
Last Modified: 2012-05-07
I need to upgrade RAM for one of my users computers.  He has a Gateway 500S computer running Windows XP SP2.  I checked the RAM that is currently in there now which is: 2 sticks of 256 MB DDR, 133 MHz, CL2 PC2100U from Infineon.
I went on newegg.com and found potential replacement RAM of:
Brand: Kingston
Model  KVR266X64C2/1G
Type:  184-Pin DDR SDRAM  
Capacity 1GB
Speed DDR 266 (PC 2100)
Cas Latency 2
Voltage 2.5V
Heat Spreader No

My question is, will this RAM work with my machine since the 2 differ in PC2100U and no 'U'?
Question by:sliknick1028

Expert Comment

ID: 23601643
It depends what you motherboard supports.  What is the model number of your pc or motherboard.  The u stands for unbuffered so it is different than pc2100 memory.

Accepted Solution

-DJL- earned 1000 total points
ID: 23601863
Visit one of the sites below.  They both have advisor tools which allow you to specify which computer you have and then they recommend memory accordingly.

Personally I rate Crucial memory above Kingston.


LVL 69

Expert Comment

ID: 23602090
Most desktop memory is unbuffered, so I would say they are compatible.  ECC or buffered memory is typically for servers and would be labeled as such, since it is a more stringent requirement; ie, you can use buffered memory in motherboards that specify unbuffered memory, but you can't (and shouldn't) use unbuffered memory in motherboards that specify buffered memory.

Expert Comment

ID: 23602433
if your pc2100 you have is unbuffered then no problem... make sure you motherboard supports unbuffered ram... go to http://www.crucial.com and scan for the memory that is required by your pc and see what it tells you to upgrade with.

Featured Post

Free Tool: Site Down Detector

Helpful to verify reports of your own downtime, or to double check a downed website you are trying to access.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Today, still in the boom of Apple, PC's and products, nearly 50% of the computer users use Windows as graphical operating systems. If you are among those users who love windows, but are grappling to keep the system's hard drive optimized, then you s…
Most folks would know the basics of how Dropbox works, so that’s not the purpose of this article. Security is what it’s all about, so here I’ll share how I choose to secure my Dropbox Account and the Data it contains.
The viewer will learn how to successfully create a multiboot device using the SARDU utility on Windows 7. Start the SARDU utility: Change the image directory to wherever you store your ISOs, this will prevent you from having 2 copies of an ISO wit…
The viewer will learn how to successfully download and install the SARDU utility on Windows 8, without downloading adware.
Suggested Courses

581 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question