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Old PC Man
October 2nd, 2003, 10:06 AM
I'm looking for 256KB DRAM chips for my AST Rampage 286. The specifications listed in the user's manual are as follows:

Pin 1 not used
+ 5 Volts only
100NS or faster


The following list of chips are known to be compatible, but any compatible chip will do.

Fujitsu MB81256-10P
Hitachi HM50256P-10
Micron MT1257-10
Motorola MCM6256P-10
NEC UPD41256C-10
Samsung KM41256-10
Texas Instruments TMS4256-10NL
Toshiba TMM41256P-10

Thanks,

Old PC Man

Erik
October 2nd, 2003, 10:18 AM
A quick google brought up Electronics Express (http://www.elexp.com/index.htm) as a good source.

There are a couple of places here in CA that might have them but I can't seem to find URLs just yet and they don't have online catalogs anyway.

Erik

barryp
October 2nd, 2003, 09:03 PM
I'm looking for 256KB DRAM chips

I have a gazillion of them... somewhere. They are pin-compatible with the 4164-type chips that the original PC came with.

That's also the kind of memory that Bill Gates said 640KB would be enough for anyone.

Now to find them...

Old PC Man
October 4th, 2003, 10:29 AM
Great News! I thought this endeavor was a lost cause. Some of my old DOS programs may still have some life after all.

Thanks