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How easy is it to add a HD to an SE dual-floppy?

System6+Vista

Well-known member
Now that I've got a long Torx-15 screw driver, I'm having a lot more fun in the repair shop with my old Macs. I finally got to see why my Classic II was presenting only a Simasi-Mac screen - it looks as if the machine sat with its bottom and back in some sort of liquid; the corner and logic board are rusted and some green liquid even dripped onto my hand while taking it apart. The logic board is way corroded around the battery and 68030 - had I only known what was inside when I tried to boot it! Anyways, as it doesn't seem like I'll run into a Classic II logic board soon I want to move the HD into a nice dual-floppy SE I picked up last weekend. I know that some people have managed to fit a SCSI HD in SEs WITH the two floppies, but I was more expecting to replace the top floppy with my Quantam HD from the Classic II. I know I won't have that nice little plastic piece with the HD light, but can I just take the floppy drive out and find somewhere on the logic board for a SCSI connection?

Its one of the early dual 800k models, of course. 800k drives being the bane of my existence.

And what's the best thing to do with the rotten logic board?

 

Flamingtoasters

Well-known member
Yes, swapping out one of the floppy drives is really simple. Every Mac SE has an internal SCSI port on the motherboard for an internal HD, you just need a mounting bracket (heck, you could even make one yourself) and a ribbon cable. I suggest testing both of the floppy drives before you make the switch; I've seen a few SEs that only have one good drive.

For the Classic II motherboard, you could make a neat frisbee or coaster out of it :D

 

LCGuy

LC Doctor/Hot Rodder
I'd say the capacitors have gone on the Classic II motherboard...you can either replace the caps yourself and keep using the Classic II, or trade/give the machine to someone else on here who might be interested in replacing the caps - just don't throw it out :)

 

Mars478

Well-known member
Hows the analog board on that Classic 2? I have a Classic 2 with a bad analog board. The Logic board is in better condition than yours, but has some leaky caps.. This may be fixable with a nice Wash, Wanna work out a deal? I could sell you my Logic board (Or whole Classic 2 in that case) or you could sell me your analog board?

Thanks and good luck with the translpant!

 

MacJunky

Well-known member
The Logic board is in better condition than yours, but has some leaky caps.. This may be fixable with a nice Wash,
No, it will not, the capacitors need to be replaced by someone with experience and that is final.
 

Mars478

Well-known member
:?:

As a temporary solution, Washing the logic board will sometimes bring it back to life.

That is what I have read around these boards.

 

JRL

Well-known member
:?: As a temporary solution, Washing the logic board will sometimes bring it back to life.

That is what I have read around these boards.
Well, it's not a permanent solution, and it usually returns. :'(

 

Mars478

Well-known member
Yeah thats what I've read, but just to see if it works. Ahh whatever. I just want a working Compact. xx(

 

phreakout

Well-known member
System6+Vista,

Adding a SCSI HD to a dual 800K floppy SE is easy. I've done it before with mine, but I ended up with some obstacles. For one, the SE didn't have the SCSI ribbon cable or the power cable that connects between the analog board and the HD. Both of these cables I ended up salvaging from a dead Macintosh 2 I had sitting around. Second, after removing the top 800K drive, the HD was a bit longer from front to back. So, I had to bend part of the chassis/cage/shield back in order for the power and SCSI cables to connect and work. I could have just used a Dremel tool to cut part of the metal to size but I didn't want to change much of the internal hardware to be authentic. What am I saying? I later ended up replacing the logic board with one from an SE/30, so what am I complaining about?

Another issue is whether or not the drive will boot. It could very well give you an alert that it couldn't be run without the right enabler(s), because it was once ran on a Classic 2 and now running on an older model SE. Try booting with extensions OFF in this case.

73s de Phreakout. :cool:

 

System6+Vista

Well-known member
Great, thanks for the responses. I will open up the SE tomorrow and attempt the transplant. I expected that I'd need the SCSI cable from the Classic II, so I've held onto that and I also have the metal mounting bracket (very heavy!) from the Classic II if that'll by any chance fit in the SE. I will try very hard not to be lazy this time; when putting things in PC towers sometimes I just electrically tape new things new HDs in based on gravity and general time constraints.

The logic board is in pretty poor condition. Anyone can have it for free if they want to pay the shipping - the amount of corrosion is very serious. However, it was able to have power pass through enough so that Simasi mac came on the screen, very stably. I feel like this means something.

 
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