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Hello. Some time ago, I set out to replace the ADC ports on certain OEM graphics cards with an HDMI port. I finished the project a while back and have converted several graphics card models (Ati Rage Pro, Radeon 7500, GeForce 2 MX, Geforce 4 MX, and a Radeon 9000 Pro); it seems to work well...

It seems this topic hasn't sparked any interest. Anyway, I’ve continued running tests. That QS machine refused to recognize the new Gigadesigns 2x 1.6GHz processor—whether using the Newertech patcher, the two from Gigadesigns, or the one from Sonnet. I have three other QS logic boards and...

I finally found version 3.0.1 on one of my hard drives. I uninstalled version 2.1.0 and installed 3.0.1, but it still doesn't work!!! Was there a specific patcher for the Dual models that allowed them to run on the QS models? Does anyone still have the original CD? I’d appreciate an ISO.

Maybe i need Giga Designs Updater 3.0.1 ?? Someone have it? .

Hi. A friend sold me a Gigadesigns Dual 1.6GHz MC7447A upgrade. I tested it myself in his Quicksilver 2002 and then removed it. Now I’ve tried installing it in my own QS 2002, but it doesn't recognize the CPU. I tested it in a DA model, and it works there. At first, I thought the applied...

@François Yes, that's what I thought, but the Cubes that use diodes come with LMs, while mine, without diodes, uses an LMJ. I can't find a datasheet for the J. My motherboard doesn't have diodes. Do I need to add them? Or is it already implemented in my motherboard revision? Are the LMJ and LM...

Thank you so much for the photos and references! So, I have one question. I don't have the diodes, only an LMJ2679. If I replace it with the LM2679 without the "J", do I need to add the diodes?

Hello, I have a Cube motherboard with the same symptoms: FireWire failure and excessive heat. My board doesn't show any visible damage, but instead of the LM2679 with the two diodes, it has an LMJ2679 without the diodes. I can't find either the IC or the datasheet for the "J" version; I can...

Hello everyone. I've been having fun for a couple of days with a G-Celerator 1250 CPU card that I swapped with an MC7457RX1267LC, and I've also been experimenting with overclocking, surprisingly reaching 1.67GHz...

This might be silly, but my LCII had RAM issues until I ran a fine sandpaper over the motherboard contacts, and it solved the problem. There must have been some surface rust on the contacts.

Hi! I have some news. This afternoon I started testing. I focused on the MC34119 (op-amp), and coincidentally, when I soldered a wire to pin 4 to check for a signal with the oscilloscope, the Macintosh LC powered on without sound. I checked that pin and it wasn't connected to R74 and R75, so...

Hello. I haven't received any replies since my last post. Perhaps I didn't use the oscilloscope correctly; it was my first time, but I think it illustrates the problem. Today I ran a test. I had the motherboard from an LC3 and swapped the two sound chips. The LC2 with the LC3 chip has the same...

Thanks, I’m going to keep testing. In the case of BlueSCSI, it includes termination, which can be disabled with a jumper. I want to try with other IDs because without the SD it boots without problems, but with the SD it gets stuck there. Maybe I should try booting with BlueSCSI without the...

hello I just tried it and the same thing happens. I had not tried it because I also have an external blueSCSI, DB25, which works perfectly together with the internal HDD. Maybe I haven't placed the connector correctly, I'll check it tomorrow.

Hello. Well, I've tried it, and it seems to work, BUT with a catch. I added a 50-pin connector to the ribbon cable, and if I connect the BlueSCSI without an SD card, it works; it powers on and lights up, blinking due to the missing SD card, and the Mac boots from the IDE HDD. But if I insert an...

Thank you for the response. So there is no internal connector, I see... Do you think it would be possible to add a connector like this to the 50-pin ribbon? I'm not sure if the order of the wires is the same.

Hi! I recently got an LC 630, the basic model without a CD-ROM drive. I didn't know the HDD is IDE, and I already had a BlueSCSI ready for it, but instead I'll use a 250MB CF drive I have. I haven't finished opening it completely, but I don't know how to connect the SCSI cable to the proprietary...

Thanks for the suggestion. I have a small oscilloscope that I haven't used yet. I connected it to C104 (it's on the back, ceramic) and, as you said, the amplitude has been decreasing. I've attached some videos. So, where do you suggest the problem might be?

Yes, I already tried that, it sounds the same through headphones as through the speaker. Could it be a UB10?

I've checked the solder joints and the traces, and everything's still the same. When I turn it on from cold, I hear the "bing" sound, and then when I play a game (Lemmings), the sound gradually distorts and loses volume... Insufficient power supply? Which pin on UB10 can I measure the voltage...