Apple DOS Compatibility Card!!!

[joewhk]

Last year I got an Apple PC Compatibility card without the cable, so I can't do much with it.

This evening when I was walking around (an about to leave, again) I saw a box of Apple DOS Compatibility card sitting on the shelf of a store.

So I walked in and asked the stupid question: "Is it for sale?"

"HK$200" the guy said (US$1 = HK$7. 8)

Woah, I never thought of that... everything is inside and still wrapped - never used! Only the box is a bit old and opened... not a problem!







Just wonder - can I use the cable that came with DOS card with PC Compatibility Card? :-/

(Perhaps I'm not going to install the card... haha )

 

[quinterro]

If the PC Compatibility card you have is the one I'm thinking of (Pentium 166 with a PCI connector), the cable has three connectors. One goes to the video connector on the back of the computer, one goes to the card and one goes to the video cable to the monitor.

The DOS Compatibility card you have in the picture has four connectors if I remember correctly. I don't think they mix and match.

 

[joewhk]

Yea, it's the 166MHz Pentium card...

I just tried that on my 8600. I tested it with a VGA screen but it's just blank - no signal. Not sure if it's the video cable's fault or something else...

(I'll have to unpack my 6100 and AudioVision 14 if I really want test the card.)

 

[Dog Cow]

Nice find. I'm in the opposite situation: I have 2 sets of cables, but no card to plug them to!

 

[joewhk]

Nice find. I'm in the opposite situation: I have 2 sets of cables, but no card to plug them to!

Woo.. which cable?

Just tested the card. It is functional... however I can't get it working when:

1. the Audio cable is properly connected

2. the Hard Disk power extension cable is properly connected

Yea, I don't know why... it powers on without making a chime. I checked the manual many times and made sure that I was right. :O

The DOS Card is definitely better than Boot Camp... it can switch back and forth at the same time, and it has it's own RAM and CPU!

 

[daanvdl]

I know this is a long time ago, but ever found the issue?
I have another DOS card: no chime, no POST.

- 680LC040 CPU is known to be good
- 630 logicboard is known to be good (+ recapped as well)
- PSU is known to be good
- Cant find any damages or trace issues using my microscope

Both 68K and 486 CPU's are getting warm so likely executing 'something'.

 

[killvore]

I had an issue with my DOS compatibility card where I had seated the 486 wrong, and the Quadra it was sitting in flatly refused to boot - it powered on but didn't POST. Once I fixed the 486, it booted no problem. It was a but tricky for me since the 486 doesn't have the "cut corner" to show how to orient it correctly in its socket, so had to use trial and error

 

[daanvdl]

Thanks Killvore!
I double the 'polarity' checked the 486 (and even changed it with a known good CPU), but still no signs of life
Will hook some datalines to the scope to see if there is activity when i have a bit more time, but without knowledge on how this thing works it will likely not help me any further