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This only matters if you are adding a switch. If you are re-using the controller as-is, then any switching/control that's built in should be to code already. It's easier to think of AC as unpolarized (in the voltage sense). The voltage polarity is switching 50-60 times a second, so any device...

I'm curious about the CFM ratings just to see how much of this is spec vs age, if possible. With the Quadra 605 I received, the Noctua was slightly better in terms of rated CFM, and your data seems to suggest that the CFM of the OEM fans here are similar to the CFM of the OEM fan for the...

This is good information. One thing I'd add is that I think I'd mostly just want to make sure that if you are inserting a switch somewhere, that you switch hot not neutral. The circuit works if you switch neutral, but as KennyPowers mentions, having more things energized is more of a shock hazard.

Yes. At least with how the extension is currently written. That said, rebooting System 7 is quick enough with a BlueSCSI or similar that I only disable 32-bit addressing when I want to use the IIe card.

I've had a BlueSCSI drive image corrupt itself in a Quadra 605, but it was overclocked at the time, which meant the SCSI chip was operating out of spec. IS your's on the stock clock speed?

That’s… unusual. Back when an 8600 was my primary machine, I had a 450Mhz G4 card (the joeCard I mention above) in there for a couple years. Even ran OS X on the thing. Nothing like what you mention here, and the 8600 has less internal volume for air circulation. The 7300 even less than the...

While we only had a 450Mhz G4 joeCard instead of the Sonnet, we never noticed an increased demand for cooling with the 7300. But we weren’t pushing things as hard as ClassicHasClass is here. Keep in mind the PSU in this thing is rated for 175W (EDIT: 150W), I believe. That’s your upper limit on...

With the 7300 recovered as much as I'm going to get, started looking at the first batch of peripherals and software. A lot of SCSI things mostly. A good chunk of this will be going into trade pile. Hardware APS 128MB MO (Epson OMD-5010 Mechanism) APS 1.2GB HDD (Quantum - DOA, Enclosure Works)...

I'll second that congrats on narrowing down the SSD issue. Disappointing that OWC's drives aren't as compatible as they probably should be. Very likely I got lucky with my Quicksilver setup not triggering the incompatibility.

As I started into trying to back up data off the 7300 drives, started running into the bane of many of these systems: Quantum brand HDD. I managed to clone the Seagate HDD onto the BlueSCSI, but the Quantum HDD is currently in the middle of dying. Doesn't look like I'll be able to copy much of...

It's neat, but the developer posted that code back in Nov 2004 after giving up on the project. I'm not super keen on jumping into something like this because there's no clear license on the existing source, and it would be trying to stand up a full bluetooth driver, which is a whole thing. One...

Been playing a bit with a Raspberry Pi Pico lately. I would like to use a Bluetooth mouse & keyboard with the G4, but to make it work in OS 9 requires some sort of HID proxy. A Pico W is one of the cheapest devices you can grab that has both USB and Bluetooth capabilities, and so it's more a...

I can't tell if you are joking or not, but these cards were built for 95/98 specifically, and support NT if you're willing to give up some of the custom tools that Orange Micro wrote that only work on 9x. Orange Micro includes custom driver/boot disks for Win95/98 installs to load up custom...

Yup, OrangeMicro used S3 for the 400 series as well. These cards are all variations on the same basic design, so expect to see a lot of the same chips. The 550 and 660 are interesting because they are the only ones with any kind of 3D acceleration as far as I know (ViRGE GX and Nvidia RIVA 128...

My father tends to hold onto old computer equipment, boxes, and the like. It's not so much an intentional collection, just things never gotten rid of. Since I've been building a small collection, I asked if he had any of the old Apple stuff still, and while he no longer had the SE/30 (heavily...

Washington state, so about as far away from you as I can get while still being in the lower 48. If the 7300 didn’t drop right into my lap, I would be interested though. For now, I need to see how many of the OrangeMicro 500-series cards still work (I wound up with 3 complete cards), and sort...

This style of case was pretty much exactly what I imagined when suggesting including the shroud. Great to see it become reality and work this well. This is one reason I was interested, as the 6100 DOS compatible is an interesting beast. I just got lucky this weekend as it turns out my father...

There are no termination settings on the DB-25 BlueSCSI... only the Desktop V2 does. And removing the external BlueSCSI does not affect performance of the internal. Well aware. I think we are getting into misunderstanding territory again. :) It's not long pauses, it's consistently low frame...

I can double check the termination settings on the internal just to make sure that the termination jumper didn’t come loose or something, but as it is all the same bus, wouldn’t this impact both devices? The testing was performed with both BlueSCSI devices installed at the same time, and so...

To be fair, I haven't traced all the clock signals through the schematic yet, so the additional details are interesting. As for the PLL Clock Driver, yes that agrees with my reading. The doubled frequency is for the CPU's PCLK, and the bus timings for the CPU are being fed from Q1, with...