RAM question: moving from one Toshiba to another

I have two 512 MB sticks of laptop memory that I received earlier this year when I helped a friend set up his new Toshiba (Vista) laptop on his home network. He wanted to max out the memory (it took two, 2 GB sticks) and since he now longer needed the 512 MB sticks that came in the unit, he gave them to me.

Now, I have come by a two year old Toshiba running XP Home, and I want to know if the memory that came out of the '08 model will work in the '06 model.

Unfortunately, I am not savvy enough to interpret the myriad of numbers that appear on the stickers on the memory sticks. So, how can I determine if they will work in the older computer?

Thanks in advance,
Rick

 

Thanks. Here are the numbers, etc.

The (older, XP base) laptop is a Toshiba Satallite 105-S4001, Model No. PSAA8U-06300J. (Unfortunately, I don't have the model number on the newer laptop).

Anway, I opened the cover and the numbers on the single memory stick in the unit are:

512MB 2Rx16 PC2-4200-444-12

Next, the memory from the newer laptop shows the following on the sticker:

512MB 2Rx16 PC2-5300S-555-12-A3

Using the time-proven "stare and compare" technique, the pin count measured up, so I popped the newer sticks in and booted it. The System is now showing the 1 GB of RAM.

So unless you guys tell me you see something in the numbers that says, "yank it quick" I'll leave the 1 GB in for posterity.

What say ye?

 

It's been running now for several hours and so far, no suspicious odors, smoke, or undue heat!

Thanks for the feedback!

 

If you install the new RAM and it works, that is a good sign .

Just watch for if the system runs any differently, for example, if it starts showing errors.

Matt