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 logic board swapinto a q700
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kastegir
New Member


USA
58 Posts
Posted - 25 Aug 2002 :  19:44:27
I have an old Quadra 700 and was wondering what other logic board will fit into the case without mods. I think a Q650 or Q800 is a drop in swap. Anyone know if this is the case or if there are other boards that will just drop in?

catsdorule
Senior Member


Canada
1627 Posts
Posted - 25 Aug 2002 :  19:58:37
Alot of boards will work without mods but it is the backpanel that might need to be changed.

-Danny Canadian Sniper Squadron 3 stars.
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kastegir
New Member


USA
58 Posts
Posted - 25 Aug 2002 :  20:55:49
Right, but I meant without hacking the back panel. I'm pretty sure that the Q800 and Q650 have exactly the same form factor and back panel configuration. I was hoping that someone could verify that.

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bigsadhu
Junior Member


Cayman Island
462 Posts
Posted - 26 Aug 2002 :  02:19:39
Well, they're pretty close, but I'd be willing to bet that it wouldn't fit. The order of ports is the same, but the distance between centres of the mic plug and the power button is about 1cm more on the 800.

The 800 may have a similar back panel configuration to the 650, but definitely has a different form factor, the 800 being a tower.

Cheers!
CC

Air Marshall, 605 sQUADRAn

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jruschme
Junior Member


USA
196 Posts
Posted - 26 Aug 2002 :  07:36:01
quote:

Well, they're pretty close, but I'd be willing to bet that it wouldn't fit. The order of ports is the same, but the distance between centres of the mic plug and the power button is about 1cm more on the 800.

The 800 may have a similar back panel configuration to the 650, but definitely has a different form factor, the 800 being a tower.



No, it's exactly the same board. The only difference is that the LED connector acts as a jumper to determine if the Gestalt is from a 650 or an 800.

I don't have the URL handy, but it's part of Mark Schier's clock chipping pages.

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kastegir
New Member


USA
58 Posts
Posted - 26 Aug 2002 :  15:09:49
Cool. Maybe I'll see if I can get a 650 or 800 board to drop into the q700 case for some more juice. Right now it's just acting as a localtalk-ethernet bridge, connecting my airport network to my laserwriter, but maybe I'll use it for something more fun. I was using it to run an smtp server until I moved that to my cube.

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FireWire is fast
General, 4 star


USA
1559 Posts
Posted - 26 Aug 2002 :  17:43:59
Swapping for a 650/800 board would require a bit of "hacking" as they have one more NuBus slot than the 700. The port arrangement is probably different too...

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Trash80toG-4
NIGHT STALKER


USA
2899 Posts
Posted - 26 Aug 2002 :  18:18:13
quote:

Swapping for a 650/800 board would require a bit of "hacking" as they have one more NuBus slot than the 700. The port arrangement is probably different too...


http://www.apple.com.pl/infotech/varia/Ports/Ports_Pinouts.pdf


jt .
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maclover5
LC Doctor/Hot Rodder


Australia
5830 Posts
Posted - 27 Aug 2002 :  00:16:25
Plus, with the 800 board, you'd also need to bring the PSU over to the 700, as well. The 800 doesn't use a IIci style PSU, but rather uses the same type as the 8100.

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jruschme
Junior Member


USA
196 Posts
Posted - 27 Aug 2002 :  07:18:05
quote:

Plus, with the 800 board, you'd also need to bring the PSU over to the 700, as well. The 800 doesn't use a IIci style PSU, but rather uses the same type as the 8100.


But we just established that the 800 board is the same as the 650 board which means that the 650 supply would work with the 800 board. That said, I though that the IIcx, IIci, IIvx, 650, 700, and 7100 supplies are interchangeable (albeit with differing output ratings).

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FireWire is fast
General, 4 star


USA
1559 Posts
Posted - 27 Aug 2002 :  19:45:52
quote:

http://www.apple.com.pl/infotech/varia/Ports/Ports_Pinouts.pdf

Oooh. High-tech!

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kastegir
New Member


USA
58 Posts
Posted - 28 Aug 2002 :  10:54:39
Ok, so we established that it should work. Of course, now my Quadra 700 has died, so I actually need a new board anyway. I'll keep you posted on the replacement/upgrade proceedings.

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kastegir
New Member


USA
58 Posts
Posted - 04 Sep 2002 :  19:45:35
The Q800 board is on it's way. Wish me luck.

Scalpel, anyone...?

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kastegir
New Member


USA
58 Posts
Posted - 06 Sep 2002 :  21:01:34
OK, here's the update. You CAN fit a Q800 board in a Q700 with a few caveats:

1) The board is a tight fit. It took some doing to get it in there.
2) The speaker jack on the board has been moved, so you'll need to get an extension or go without sound.
3) The motherboard LED is not on the Q800 board, just a plug to attach one. Need to do that.
4) It's a bit faster than the Q700. :-)

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catsdorule
Senior Member


Canada
1627 Posts
Posted - 06 Sep 2002 :  21:11:14
Nice going bring out the dremil tool!

-Danny Canadian Sniper Squadron 3 stars.
-------------------------------------
My site and web access to service manuals.
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maclover5
LC Doctor/Hot Rodder


Australia
5830 Posts
Posted - 06 Sep 2002 :  22:41:15
And how did you go with the PSU? Did it just plug in?

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68k Macintosh Liberation Army

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kastegir
New Member


USA
58 Posts
Posted - 06 Sep 2002 :  22:52:08
I didn't need the dremel at all. All of the ports lined up great. The only mods I'd have to make would be to add some wiring to extend the speaker wires and add an LED for the power light.

The Q700 PSU fit right in. Apparently the 650/700 board design is exactly the same as the 800. I do need to get a new HD for it though. My old 9gig scsi is shot. Back to eBay, I guess.

Now I just have to figure out what the heck to do with all the spare machines I have. :-) I just bought a Duo 280c on eBay to fix... The guy had a buy it now price of $25 and I couldn't resist. The screen alone is worth that for parts.

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