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View Full Version : Where to find 411000 DRAMs



Anonymous Coward
September 23rd, 2008, 06:53 PM
These are the 1mbit density DIPs that are commonly found in old Amigas and 80286 computers. Does anyone know of a good place to scavenge these? I've got the 16-pin 41256 chips coming out of my ears, but for some reason I've never been able to find the 411000s. It seems lots of systems from the late 80s have sockets for 411000s, but they are rarely filled.

Grindar
September 24th, 2008, 12:22 PM
Have you considered rigging up an adapter/daughter board to adapt a different chip to the spot? Something with the same specs, but a different pinout?

Anonymous Coward
September 24th, 2008, 05:42 PM
I think an adapter board wouldn't be terribly cost effective. Something like that would be a last resort.

Grindar
September 24th, 2008, 06:30 PM
I was thinking something along the lines of ic socket, with plastic shims to raise the ic enough to run wires between the correct pins...actually etching a board would be an act of desperation.

Anonymous Coward
September 24th, 2008, 07:38 PM
Hmm...it seems that 411000 is made by a specific manufacturer and not a general name for the 1mbx1 RAM. This site lists tables with equivilants:

http://www.serve.com/macsite/ChipMerRamGuide.html

I think the readily available 511000 chips should do the job.

channelmaniac
October 9th, 2008, 08:51 PM
They should work fine as long as you get a speed that is as fast or faster than what's required on the board.

RJ