I think you need to hunt down the mobo specs and try to ascertain your ram is
compatible.  Some of the memory manufacturer sites may help identify what you
have or what the pc/mobo requires.  There was a posting here several months back
that gave a few sites to help identify memory module specs based on the
manufacturer and/or chip coding.

joseph marty wrote:
> My recollection is that the P266 ran on mobos that required 66 Mhz, 3.3 volt,
 > non-parity, unbuffered SDRAM. That may not be particular to IBM, but it was
 > the case with old desktops that came with Win 95.
>
>
>>Is it possible that you could elaborate on this one a bit more? I don't
>>really know what to do next to persue the ram further, to tell you the
>>truth, I've now tried a single 128 MB PC100/16 low density ram module 16Mx64
>>non ECC, CAS 3 latency, and as far as I know, this should work if it is a
>>ram problem. The RAM is known working ram.
>>Help!
>>Michele Sayer
>>
>>
>>
>>I would persue the RAM further.  I had an older IBM PII-266 that used
>>non-standard memory, any other memory would plug in but gave me a similar
>>constant beep

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