"Two-story" 256 DIMM memory chips, for what kind of PC?

I won a bid on a lot (16) of DIMM memory, supposedly 256 MB each.
I did not pay attention on the description when bidding, thing is, these chips are like double the height of a 'regular' chip, what kind of memory is it?, I don't know: SDRAM?, ECC?, EDO?, non-ECC?, NP?. The guy selling mentioned something about "Unisys". The memory modules have 36 IC chips (18 on each side). Numbers and letters on them go like: " NEC UK D4265405G5-A50-7 JD 9928ESL 02 ".
The manufacturer is Viking Components.
Will appreciate any help / input
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.

efrain12Author Commented:
What I really want to know is, if there's anything I can do to use this memory chips on my computers. My machines are IBM-compatible, most of them Pentiums  from 400 MHz to 2.4 GHz
look here for specs : (4X256MB) EDO ECC Buffered-3.3V 168Pin DIMMs


if your motherboard can handle this, it should work

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
efrain12Author Commented:
This is what I was looking for, now I know it's EDO, ECC memory.
Thanks a lot!

Efrain Portales
no problem !
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.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.