System can't detect the Ram

First check and see if any jumpers need to be changed on the mother board to allow you to use the socket.
If the board is not marked, and you do not have a manual, copy down the bios string that appears during the POST.
Go to www.motherboards.org and follow the links to identify your MB.
With any luck, the mfg is still in business, and you can download a manual.

I am ussuming that their are 72 pin SIMM sockets for the extra memory.
Are their 2 SIMM sockets, or just 1?
If their are 2, you may need to add memory as matched pairs of SIMMs.

Next, check for bios settings to enable the extra memory.

Finally, are you sure that the MB takes EDO RAM?
Many of the older Pentium MBs only take FPM RAM.

I'm with TheChas on this question. There is probably a jumper on the Motherboard that disables the 16MB onboard memory.

The voltage for the onboad memory and the expansion memory slot/memory could be different.

Good luck!
EBCDIC

EDO is normally added in pairs and if the existing does not match the new 60 ns or 70 ns then it will not operate correctly. And on some systems if it does not operate in a specific range it will not work. 70 ns +- 4 will not work in a system designed for 70 ns +- 2, you will get the strangest problems ever seen.

Been there, seen it. Does your computer have SDRAM slots ? Much easier to deal with !

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