-
Updated 2023-07-12: Hello, Guest! Welcome back, and be sure to check out this follow-up post about our outage a week or so ago.
Who has an Asante MacCon?
- Thread starter LC_575
- Start date
LC_575
Well-known member
I have two power supplies. One looks a little wet inside (electrolytic?) and both have that "Old Mac Smell." Regardless, both seem to boot the IIsi just fine. I did voltage tests on both of them via the Floppy port:
Supply 1 (this is the leaky one)
12v: 12.15
5v: 4.97
Supply 2
12v: 12.18
5v: 4.96
Presently I'm using the second one. My IIsi logic board is also due for a recapping (electrolytic staining is visible), but it's still a fully functional board. I plan on recapping all at once (logic board and one power supply) but it's a big project that I won't do until I need to (and those big caps in the PSU do look threatening! I noticed that using a NuBus card does overwhelm it - my Mac II (toby) video card cannot sustain monitor sync (keeps turning on and off), but that may just be a bad card.
Supply 1 (this is the leaky one)
12v: 12.15
5v: 4.97
Supply 2
12v: 12.18
5v: 4.96
Presently I'm using the second one. My IIsi logic board is also due for a recapping (electrolytic staining is visible), but it's still a fully functional board. I plan on recapping all at once (logic board and one power supply) but it's a big project that I won't do until I need to (and those big caps in the PSU do look threatening! I noticed that using a NuBus card does overwhelm it - my Mac II (toby) video card cannot sustain monitor sync (keeps turning on and off), but that may just be a bad card.
TylerEss
Well-known member
I take it you mean the MacCon si for the SE/30 / IIsi PDS?
From their size I would intuit that they're probably the same spec as the caps used for recapping the SE/30 mobo... the values of which I've forgotten.
If this *is* the card you're talking about, I'll dig mine out of the basement and read off the values for 'ya.
From their size I would intuit that they're probably the same spec as the caps used for recapping the SE/30 mobo... the values of which I've forgotten.
If this *is* the card you're talking about, I'll dig mine out of the basement and read off the values for 'ya.
beachycove
Well-known member
I have a MacCon for SE/30 and IIsi that does not work and it had not occurred to me to change the tantaliums. These are the radial lead ones. Mine appear unhurt. Do they go bad?
I have the card in front of me. There are three larger capacitors marked:
226
+16k
I have no real idea what that means, as it does not look like the markings on the electrolytics with which I am somewhat more familiar.
The smaller one (closest to the top) is marked:
225
+16k
If you could explain what the markings mean in return, and keep us posted on your success, I would be grateful, as I'd like to fix my card also!
I have the card in front of me. There are three larger capacitors marked:
226
+16k
I have no real idea what that means, as it does not look like the markings on the electrolytics with which I am somewhat more familiar.
The smaller one (closest to the top) is marked:
225
+16k
If you could explain what the markings mean in return, and keep us posted on your success, I would be grateful, as I'd like to fix my card also!
zuiko21
Well-known member
Hi all,
Most (if not all) SMD components show their values on three numbers: the leftmost two are the significant digits while the last one means the number of zeros to be put to the right in order to read the full numeric value -- in picofarads in the case of capacitors.
So, 226 really means 22000000 pF = 22000 nF = 22 uF (micro-farads), which makes a lot of sense to me. And 225 should be 2.2 uF.
About the other markings, I'm not sure; but the + seems to point at the positive lead, the 16 seems the voltage rating (16v is a typical value) and the final k... I don't know, but could be a tolerance or temperature rating.
Hope this helps,
Most (if not all) SMD components show their values on three numbers: the leftmost two are the significant digits while the last one means the number of zeros to be put to the right in order to read the full numeric value -- in picofarads in the case of capacitors.
So, 226 really means 22000000 pF = 22000 nF = 22 uF (micro-farads), which makes a lot of sense to me. And 225 should be 2.2 uF.
About the other markings, I'm not sure; but the + seems to point at the positive lead, the 16 seems the voltage rating (16v is a typical value) and the final k... I don't know, but could be a tolerance or temperature rating.
Hope this helps,
Trash80toHP_Mini
NIGHT STALKER
I haven't got mine handy, pretty sure I've got one though, but from what I recall from the gamba SE/30 lore:
__It's definitely a PDS Passthru Connector . . .
_______the passthru connector is the same length as the PDS connector for the MoBo
_______there's not room on the card for the NuBus Chipset, which uses a shorter EuroDIN connector anyway
_______because it's a PDS Riser format board, it has jumpers on it to change its Virtual Slot (?) address
_______ISTR, from the IIsi DevNotes, that some SE/30 cards cannot deal with the IIsi's faster I/O bus.
So, if your problems are NOT PSU, PSU CAP, Board CAP issues or the same issues on the Card itself . . .
. . . then check out the gamba site for info on the SE/30 multi-card hacks to make sure your problem with the slot isn't just an address conflict. If it is an I/O bus speed issue, you're scrod!
If anyone has the docs for this card, or ANY other IIsi expansion card, please scan them and post them! :approve:
< tangent mode >
AFAIK, the IIsi is basically a more capable, 5 MHz faster SE/30 in terms of its PDS centric I/O expansion feature set. The IIsi's roots would be more in line with the IIci's architecture and Vampire Video subsystem with sound ports added for good measure. Whereas the SE/30 was basically a IIcx adapted to the SE format.
IMHO, the IIsi was intentionally hobbled in order to protect "High End Sales," as was/is the norm for low and middle market class Macs of most any era. This was achieved by the removal of the NuBus Chipset from the MoBo in order to limit it to either an Apple PDS Slot RA Adapter Card or an Apple RA NuBus Adapter Card. This can also be attributed to the IIsi's form factor and I/O structure and the limits these imposed upon placement of a NuBus Card by less skeptical 68k collectors.
A large number of developers wedged I/O expansion into this chink in the IIsi's I/O structure, developing all sorts of PDS Passthru RA Adapter Cards, making the IIsi an even more interesting subject for hacking to me than either the SE/30 or the Color Classic.
}
__It's definitely a PDS Passthru Connector . . .
_______the passthru connector is the same length as the PDS connector for the MoBo
_______there's not room on the card for the NuBus Chipset, which uses a shorter EuroDIN connector anyway
_______because it's a PDS Riser format board, it has jumpers on it to change its Virtual Slot (?) address
_______ISTR, from the IIsi DevNotes, that some SE/30 cards cannot deal with the IIsi's faster I/O bus.
So, if your problems are NOT PSU, PSU CAP, Board CAP issues or the same issues on the Card itself . . .
. . . then check out the gamba site for info on the SE/30 multi-card hacks to make sure your problem with the slot isn't just an address conflict. If it is an I/O bus speed issue, you're scrod!
If anyone has the docs for this card, or ANY other IIsi expansion card, please scan them and post them! :approve:
< tangent mode >
AFAIK, the IIsi is basically a more capable, 5 MHz faster SE/30 in terms of its PDS centric I/O expansion feature set. The IIsi's roots would be more in line with the IIci's architecture and Vampire Video subsystem with sound ports added for good measure. Whereas the SE/30 was basically a IIcx adapted to the SE format.
IMHO, the IIsi was intentionally hobbled in order to protect "High End Sales," as was/is the norm for low and middle market class Macs of most any era. This was achieved by the removal of the NuBus Chipset from the MoBo in order to limit it to either an Apple PDS Slot RA Adapter Card or an Apple RA NuBus Adapter Card. This can also be attributed to the IIsi's form factor and I/O structure and the limits these imposed upon placement of a NuBus Card by less skeptical 68k collectors.
A large number of developers wedged I/O expansion into this chink in the IIsi's I/O structure, developing all sorts of PDS Passthru RA Adapter Cards, making the IIsi an even more interesting subject for hacking to me than either the SE/30 or the Color Classic.
}
Trash80toHP_Mini
NIGHT STALKER
:lol: Found'em! It turns out that my three different IIsi NICs are actually three different revs of the Asante MacCon NIC! :
The most recently acquired one had a Math CoPro in the socket and a 10bT connector in between the Thin-n-ThickNet Connectors, so that's the one I grabbed.
Testing done for powerup/boot: NoPro.
Testing with (known good) SuperMac Spectrum/8si v 1.0 PDS card installed yielded boot, but no video out of the PDS VidCard . . .
. . . which is the same result I got with the (each known good) Radius Color Pivot II IIsi Riser Card/Color Pivot II SE/30 Direct Slot combo . . .
. . . addressing conflict for sure . . .
. . . time to head to gamba to brush up on my MultiCard SE/30 Hacking Lore! }
The most recently acquired one had a Math CoPro in the socket and a 10bT connector in between the Thin-n-ThickNet Connectors, so that's the one I grabbed.
Testing done for powerup/boot: NoPro.
Testing with (known good) SuperMac Spectrum/8si v 1.0 PDS card installed yielded boot, but no video out of the PDS VidCard . . .
. . . which is the same result I got with the (each known good) Radius Color Pivot II IIsi Riser Card/Color Pivot II SE/30 Direct Slot combo . . .
. . . addressing conflict for sure . . .
. . . time to head to gamba to brush up on my MultiCard SE/30 Hacking Lore! }
It just dawned on me: I own one of these too! Lol!
Anyway, here are the legacy docs on the Mac Con series from Asante, including the jumper settings. http://www.asante.com/downloads/legacy/mcmlrb.pdf
Anyway, here are the legacy docs on the Mac Con series from Asante, including the jumper settings. http://www.asante.com/downloads/legacy/mcmlrb.pdf
Trash80toHP_Mini
NIGHT STALKER
BINGO!!!!!!!!!!!!!!!!!!! :approve:
THX, I'll try that out tonight with the Radius Pivot Card! [] ]'>
THX, I'll try that out tonight with the Radius Pivot Card! [
] ]'>
Trash80toHP_Mini
NIGHT STALKER
Look above, I think beachycove posted them for the MacCon Card, were you looking for others?
BTW, I've tried the Mac Con 30ie MCPT Rev. C1 set up as shown in the Docs, thanks again for that link, but no joy so far. Lots of static coming from the speakers with the address set on A, B or E.
Dunno, could be a bad card. :-/ Maybe bad Caps? :?:
I'll test another one soon, I turned up a fourth one that I've had for over 10 years now, so that makes four, unless this one is bad, which would still leave me with three to test!
}
BTW, I've tried the Mac Con 30ie MCPT Rev. C1 set up as shown in the Docs, thanks again for that link, but no joy so far. Lots of static coming from the speakers with the address set on A, B or E.
Dunno, could be a bad card. :-/ Maybe bad Caps? :?:
I'll test another one soon, I turned up a fourth one that I've had for over 10 years now, so that makes four, unless this one is bad, which would still leave me with three to test!
}
I recall that one address on the SE/30 is always being occupied. I'm not sure if the same applies for a IIsi(Which I think is what you are testing on?), but the card might be hopping onto that occupied address.
However, seeing as you tried three different addresses, I'd rule out a bad card before continuing.
However, seeing as you tried three different addresses, I'd rule out a bad card before continuing.
Trash80toHP_Mini
NIGHT STALKER
YUP! I need to find my chip puller, the CoPro on Board might be VERY BAD!
I'll check the DevNote, but I doubt Asante would make such a NOOB move!n
LC_575, what's the exact Part Designation on your MacCon NIC? :?:
Pics of it would be good too!
I'll document all of mine for the upcoming Radius_Color_Pivot_II-n-MacCon NIC IIsi_Subterranian_Multi-PDS_CardHack™ thread.
Trash80toHP_Mini
NIGHT STALKER
I don't know if it was the CoPro or the "Fossilized Hot Fudge" that was bridging some of the socket/chip connections, but my Mac Con, and Radius Color Pivot II/IIsi seem to be getting along amicably after all! I'll have to post the address used for the MacCon and results when I try the CoPro, sans coco grunge, in the MacCon Socket again . . .
. . . I should probably test all the other address alternatives too. :
Per the MacCon Docs, graciously linked to by theos911, it has had its ThickNet DaughterCard removed and is plugged into The Radius Color Pivot II/IIsi, whose DB-15 connector has been installed in place of the ThickNet DB-15. There's something slightly kinky about this arrangement, but it works! When I looked at the backplane assembly originally, I'd wondered if I could remove that section!
I was able to switch the IIsi's Networking over to Ethernet successfully, but I haven't tested it yet. Time to stop with the SneakerNet dance and set up a network again!
I also haven't been able to install a 7.5.5 friendly rev. of TattleTech on the Q700 OS 7.5.5 HDD I've been using on the IIsi as yet. However, that .sea and a few other utilities now reside on a floppy after my morning of 2300c triage. Thanks for the lead on those three pathetic 2300s too theos! [] ]'>
Now all I need to do is transfer them to ZIP, set up a Network again or find a FDD that'll work in the IIsi, whose drive is shot.
The rest of the morning's Radius Color Pivot II/IIsi test results will be posted in that thread! :approve:
. . . I should probably test all the other address alternatives too. :
Per the MacCon Docs, graciously linked to by theos911, it has had its ThickNet DaughterCard removed and is plugged into The Radius Color Pivot II/IIsi, whose DB-15 connector has been installed in place of the ThickNet DB-15. There's something slightly kinky about this arrangement, but it works! When I looked at the backplane assembly originally, I'd wondered if I could remove that section!
I was able to switch the IIsi's Networking over to Ethernet successfully, but I haven't tested it yet. Time to stop with the SneakerNet dance and set up a network again!
I also haven't been able to install a 7.5.5 friendly rev. of TattleTech on the Q700 OS 7.5.5 HDD I've been using on the IIsi as yet. However, that .sea and a few other utilities now reside on a floppy after my morning of 2300c triage. Thanks for the lead on those three pathetic 2300s too theos! [
] ]'>Now all I need to do is transfer them to ZIP, set up a Network again or find a FDD that'll work in the IIsi, whose drive is shot.
The rest of the morning's Radius Color Pivot II/IIsi test results will be posted in that thread! :approve:
Trash80toHP_Mini
NIGHT STALKER
I'll post 2300c trio results . . . but not the recipe . . . not sure I wanna know either . . . in the SuperDuo thread! :approve:
