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    can you convert quadra 650 board to quadra 800?

    I know you were following my thread on TD about my wombat board dying in the ultrasonic cleaner and how I repaired it. If you reread, you’ll see those were the symptoms of mine too. Chime then nothing. If you are absolutely certain that U63 is working and that all it’s traces are connected...
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    can you convert quadra 650 board to quadra 800?

    I think the differences are trivial and easily "corrected". If you read the article that Unknown linked above they are detailed. There is another much older resource somewhere on the internet that details the differences too, but I forget where... Edit: Here...
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    can you convert quadra 650 board to quadra 800?

    Yes*, all you have to do is plug the led from a Q800 into the header that's in the corner of the board above the battery holder. It's a three pin header (IIRC) and two of them are jumpered on the plug for the LED. The boards are identical*, the rom/system software changes the gestalt value...
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    Bootability of Silicon Express nubus cards...

    I must have missed that tidbit, thanks!
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    Bootability of Silicon Express nubus cards...

    I wonder if the ability to cold boot from an unblessed volume is the different behaviour provided by a SM 4.3 host? Or does that come from the beta firmware? Do you know if the firmware be rolled back on these if updated?
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    Bootability of Silicon Express nubus cards...

    Yes, that makes sense to me. Sir is correct, although as a Scot I don’t tend towards formality! I also don’t think any congratulations are in order as I didn’t do anything clever to achieve this. Lucky perhaps! The 700 is running 7.1.1, the 800 is running 8.1. Note I have only tried the...
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    Bootability of Silicon Express nubus cards...

    I have some questions and thoughts about this. Contrary to most of what I have read about them, I have been successful in booting from both SE II and SE IV cards in my Quadras (700 and 800). In both cases there was no magic involved, just followed the instructions in the SEIV user manual and it...
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    Wombat (650, 800) board overclocking limitations

    Apologies for going a bit off-topic, but you two seem to know a bit about the FastCache Quadra and I haven't found much solid information about it before now. I have one, and installed in my Quadra 800 (modified 650 board, my original 800 board has dead SCSI right now so I can't test it in that...
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    Using Magneto Optical drives on vintage 68k Macs

    Thanks for clearing that up, I assumed there were physical hardware differences beyond the gpu... I have a rev A G3 MT so was aware of the A-B differences, I didn't even know there was a rev C until now!
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    Using Magneto Optical drives on vintage 68k Macs

    Apologies if I am preaching to the choir, but revision A of the beige G3 logic board can't use slave drives, while B can. So I guess there are significant differences to the IDE controller between them...
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    Need help to fix quadra 800

    No problem! No trace and no via means it's not connected to anything. I did a bombed 650 board (same board as 800) recently and most of the N/C pads were gone, and a couple of the connected pads needed some repair. All worked fine when I soldered the IC back on (along with some other repairs...
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    Need help to fix quadra 800

    That pad is N/C. You can safely ignore it.
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    Replacement power led for quadra 800

    Can anyone recommend a suitable one? I'm afraid that whatever generic led I buy will be way too bright. The original was very subtle and I really hate bright glary leds so I'd like the replacement to be similar... Thanks.
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    What is the best Usb Wifi dongle for a PowerPC Mac?

    I just use one of the below units configured as a wireless bridge connected to the computers ethernet. Works on any mac with ethernet and avoids all messing around with drivers and wifi configurations. Got a quadra 700 sitting next to me right now connected to my home network via one of these...
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    Booting 9.2 on Cube with Encore ST 1.7 cpu...

    Is it possible? I am having no luck doing so. It will boot and load extensions, but freezes on the loading screen after the extensions have loaded before going to the desktop. With extensions disabled, it freezes in the same place just with no extensions loaded. I have the Sonnet firmware...
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    Scored a beat up Quadra 950

    I was watching it on ebay too, and had the exact same intention of using the 601 card in my 700 if the 950 was truly a gonner - decided I didn't need any more projects in the end! Good to see it's in capable hands!
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    Unexpected surprise in a G4 cube...

    Hi, yeah the problem appears to be independent of the VRM - same on both. If you didn't see my other thread, I got it working with a wireless bridge instead of direct connection to the router. I don't know why, but it works now. On the heatspreader, I left the foil on the heatsink side, I just...
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    G4 cube becomes unstable when ethernet is connected

    No, I am in the UK. Well, I have an update. I did the large folder duplicate and it worked fine. I have some cheap wifi bridges/endpoints laying around that I use at work so I decided to try one of those. It's on a very short (about 15") ethernet cable. With that it is running just fine. Been...
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    G4 cube becomes unstable when ethernet is connected

    Thanks for your thoughts, I really appreciate it. I am 99.99% sure it's just the ethernet. If the machine is just idling on the desktop with nothing running it will sit like that indefinitely, sleep and wake no problem, launch applications and go back to idling etc., but when I plug the...
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    Unexpected surprise in a G4 cube...

    I made a new post in the proper subform about this as I have been working on it; https://68kmla.org/bb/index.php?threads/g4-cube-becomes-unstable-when-ethernet-is-connected.38641/#post-417773 I discovered that it's some how related to the ethernet. I can launch every app on the drive...
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