Identifyimg RAM

How do I identify a SIMM or DIMM just by looking at it?
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

A DIMM will be MUCH larger that a SIMM.  A SIMM is usually 3-4 inches long and 3/4 to 1 inch in height.
bellhouseAuthor Commented:
I am aware of the difference between modules, I need to know how to identify the size and type.
To do this correctly you would need the lettering and numbering
system from each Ram manufaturer, in order to identify
the memory size, type and speed of each chip.
MSSPs - Are you paying too much?

WEBINAR: Managed security service providers often deploy & manage products from a variety of solution vendors. But is this really the best approach when it comes to saving time AND money? Join us on Aug. 15th to learn how you can improve your total cost of ownership today!


A SIMM will have a row of chips on only one side of it hence SINGLE IN-LINE MEMORY MODULE

A DIMM will have a row of chips on both sides of it hence DUAL IN-LINE MEMORY MODULE.

As far as FAST PAGE, EDO, DRAM, SDRAM, SGRAM, etc. that's a little bit trickier.

Fast Page and EDO are small, 30 or 72 pin modules whereas DRAM and SDRAM are 168 pin modules.  
You cannot tell the sizes of SIMMS or DIMMS just by looking at them.  It would be hard enough to even identify the manufacturer alone.  Different manufacturers use different configurations of chips on the memory, making it nearly impossible to tell one from another.

The easiest method is to put the memory in a computer and see what the memory test declares the DIMM is.

Could be tricky with SIMMs if you don't know what they are. If it's a Pentium system you're testing them in you'll have to correctly pair them up or the system won't work.

In that case, you can try single SIMMs in a 486 (which doesn't need to be paired up with like memory).

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
bellhouseAuthor Commented:
thanks.... looks like i have a long and boring job on my hands...
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today

From novice to tech pro — start learning today.