68kMLA Classic Interface
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| Quadra 700 Mainboard in IIcx case ... | |
| Posted by: franklyn on 2026-05-07 01:44:25 What kind of thread does the screw have to mount the HDD bracket ...? | |
| Posted by: franklyn on 2026-05-07 02:51:59 I installed the Q650 motherboard into the cx case because of the three NuBus slots, and the Q700 motherboard is back in its original case. ... I still need to do a bit of rasp and hone on the back panel, and then paint it. | |
| Posted by: killvore on 2026-05-14 10:07:57 I've just received a large collection of IIcx/IIcis and machines with compatible logic boards. Both the Quadra 650 and Quadra 800 logic boards will fit in the Quadra 700 case, unmodified, and are directly compatible with the PSU. This is just a drop-in replacement. The Power Macintosh 7100 will also fit, but you will need to cut holes in the back plate to fit the different ports, so I suggest using a bombed IIcx or IIci case instead of wrecking a Q700 case. There is a 3d printable bracket which allows you to use the "round" style speakers from the Quadra 650, Quadra 800, and Power Macintosh 7100 in the IIcx/IIci/Q700-style cases. Mac Quadra650 Speaker Mount for Quadra 700 by Kero＇s Mac Mods | Download free STL model | Printables.comSpeaker mount for Quadra700 with 650 logic board installed | Download free 3D printable STL models
www.printables.com
Here is a 7100/80 running inside a IIci case - I can play Diablo 1 just fine!  | |
| Posted by: killvore on 2026-05-18 05:34:31 With a G3 accelerator on a 7100/80 board, there does not seem to be the need for additional cooling. After an hour of quake the temp was 41 degrees C. Will test with the naked 80MHz PPC 601 at some point. | |
Posted by: croissantking on 2026-05-19 02:20:12With a G3 accelerator on a 7100/80 board, there does not seem to be the need for additional cooling. After an hour of quake the temp was 41 degrees C. Will test with the naked 80MHz PPC 601 at some point.Is that wise? Might you damage the chip? | |
Posted by: killvore on 2026-05-19 02:57:17Is that wise? Might you damage the chip?I don't think so, there was no overheating fron my measurements and no performance issues so I am assuming it's fine. | |
Posted by: croissantking on 2026-05-19 03:02:00I don't think so, there was no overheating fron my measurements and no performance issues so I am assuming it's fine. If a 33MHz and above 68040 needs a heatsink then I'd assume a 80MHz 601 also needs one. | |
| Posted by: joshc on 2026-05-19 03:30:14 80MHz 601 definitely needs a heatsink, even if its just a thin crappy one | |
Posted by: killvore on 2026-05-19 03:31:09If a 33MHz and above 68040 needs a heatsink then I'd assume a 80MHz 601 also needs one.Oh! I meant "naked" as in "no accelerator" - I will of course have the heatsink on, and probably a 40mm fan jammed into it 😅 | |
| Posted by: joshc on 2026-05-19 04:53:14 Ah, vanilla is probably a better word for that | |
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