What is this ram?? - Computer Forum

Tom · #1 (**permalink**) 12/12/05, 21:27

I just found these 3 ram sticks (or what i presume are ram sticks) whilst clearing out junk...

Here they are pictures with a normal Desktop ram chip.

I was just wondering about these, they look interesting... Im guessing they are about 4-8MB each?

Can anyone fill me in on any more details as to age + what type of pc they were in ETC?

Thanks for your help

Tom · #2 (**permalink**) 13/12/05, 23:10

anybody know anything about these at all?? / Will anyone have any use out of them .. or wants them?

syphus · #3 (**permalink**) 14/12/05, 20:25

What you're looking at there, is 30-pin SIMM Memory, used in very old systems like 486s and early Pentiums.

Those modules would probably be somewhere between 512kB and 4 MB and have an access speed of 70ns. 30-pin SIMMs were the precursor to the 72-pin SIMMs, that supported EDO and FP RAM. Later came SDRAM and DIMM slots, which have existed until today, in 168-pin; 184-pin (DDR) and 240-pin (DDR) incarnations.

Those modules have historical value or sentimental value, but very little fiscal value.

sorted · #4 (**permalink**) 19/12/05, 12:32

Quote:

Originally Posted by syphus

What you're looking at there, is 30-pin SIMM Memory, used in very old systems like 486s and early Pentiums.

Those modules would probably be somewhere between 512kB and 4 MB and have an access speed of 70ns. 30-pin SIMMs were the precursor to the 72-pin SIMMs, that supported EDO and FP RAM. Later came SDRAM and DIMM slots, which have existed until today, in 168-pin; 184-pin (DDR) and 240-pin (DDR) incarnations.

Those modules have historical value or sentimental value, but very little fiscal value.Ã‚Â!

Very well explained. I think i have a load of these in my loft from a good while back.

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