Subject: How to add a harddrive to the 1000 EX or HX
Message-ID: <C0o6CE.E4x@andy.bgsu.edu>
Organization: Bowling Green State University B.G., Oh.
Date: Mon, 11 Jan 1993 03:14:38 GMT
Lines: 67
> scs5759@ritvax: 1000 EX
> My father wants a hard drive to accompany his 1000 EX (I've tries to convince
> him to go for something a little more updated). He says it has sentimental
> value.
> Any way, he has an external port for a 5.25" drive. I was wondering if it's
> possible to swap that one for an external hard drive?? If so how much are we
> looking at, and where can I get such a beast? If that isn't a possibility,
> then how about an internal?
> Help.
> Scott
I have never heard of adding a hard drive to the external floppy port but I do know that most any hard drive can be added. You will need a few parts and an external case for the drive. The controller must be an 8 bit. I will post the method that you must use but first I will give you my experience. I built the adapter and have used it in my EX. I don't have a working hard drive to try but I did install a regular 8 bit CGA card and it worked fine. All this consist of is an adpater that i
s wired straight through. That funky expansion connector is the same, pin for pin, as a regular XT computer. You must have the memory expansion board in order to do this (At least that's what I havge been told).
> The following was posted on the Tandy 1000 Echomail Conference:
>
>
> Msg#:40109 *TANDY 1000*
> 02/06/89 19:27:55
> From: JAY WIGGINTON
> To: DAVE HEATH
> Subj: EX HARD DRIVE ADAPTER
> This is what you have to do to make an adapter to plug in a standard
> edge card in an EX or HX:
>
> Parts as follows:
> 1)Radio Shack Plus Expansion Adaptor, Part # 25-1016 - - $14.95
> 2)Female headedr connector Part # 8519257
> 3)31/62 pin edge connector Part # 8519236
> Parts #2 & #3 you can get from National Parts (Radio Shack Service Center).
> is from a memory plus expansion board and #3 is from an SX
>
> Procedure:
> 1)Remove the pins from #1, being careful not to damage the board.
> 2)Cut the board down to just about the location of the header connector th
> was removed.
> 3)Cut the edge finger leaving about 1/8 inch of the gold fingers exposed
> below the solder mask (the green covering on the board). This cut is option
> -More-
> but you may need the room.
> 4)Solder the edge connector #3 to the holes that the header connector was
> removed from. It will be necessary to bend the pins so that they fit.
> Be careful not to short any together.
> WARNING! The edge connector MUST be on the side of the board with the
> printing, Otherwise you will destroy the controller board when you first powe
> up.
> 5)Finally solder the female connector #2 to the edge fingers you left
> exposed.
> 6)Check all pins for shorts to other pins. Use a continuity checker. This
> very important it will not function if any pins are shorted together.
>
> Finally you will need to enable IRQ5 signal to the expansion port. You do th
> by installing a jumper wire form pin B23 of the expansion port (J12) to pin 2
> of the 8259A interupt controller chip (U9).
>
> The jumper is optional if you are able to change the controller card to
> IRQ2 via jumpers on the card.
>
> hope this helps Dave....I now have this adapter in my EX and am running a 30
