decserver 550 in Kansas City

From: Stuart Johnson <>
Date: Fri Feb 28 00:06:02 2003

----- Original Message -----
From: "Jonathan Engdahl" <>
To: <>
Sent: Thursday, February 27, 2003 11:33 PM
Subject: Re: decserver 550 in Kansas City

> Here is the webpage where I tell exactly how to mod the DECserver CPU into
> an 11/53.
> In short, you have to reburn the ROMs, and solder in a 1K resistor. On the
> old (.5 meg) boards, you also have to cut a jumper.

Jonathan, what I want to know is how do you connect the RX50 and
RD(whatever) hard drive to the RQDX3? Did you use standard DEC parts or did
you make something? If you used DEC parts, could you please post a list of
what is needed? I have the RX50, KDJ11, DEQNA, images of the 11/53 ROMS, and
am searching for a suitable hard drive. Anyone reading this with a decent
(size, quality, and price) hard drive for sale feel free to contact me off

Thanks so much for posting the original stuff - seeing that is what got me
back into PDP-11 related systems. My other systems are VAX and Alpha, all
running OpenVMS.

Stuart Johnson
Received on Fri Feb 28 2003 - 00:06:02 GMT

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