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Wow thanks @macuserman for that montage, it's wonderful. I am using the XLR8. It's only being used for bus speed testing. I have a B&W G3 for any riskier experiments.

I believe the Sonnet only has 3 multipliers it selects from, accounting for 50MHz, 66MHz, and 100MHz bus speeds (9x, 6.5x, and 5x). I am motivated to remove the micro-controller, as I want to build an 83MHz bus Beige G3 again. Others have reported that at 83MHz, these run the 5x setting, for a...

I can't get my 7300 to boot much past 58MHz, but I've confirmed the Sonnet 7410 "500" (RX550 on the die) maintains the 9x multiplier at 57.8MHz, for 520MHz. I really want to see what the Sonnet does at 60MHz. I do believe with minimal cooling the 550MHz rated CPU should be able to do 540MHz...

Not that I'm aware of. I have 5 modules with horribly bent pins, planning to disassemble them to get a better look at everything. I bought 10x ZIF modules recently, and every one had smashed pins. They were shipped in way too small of a box with way too little packing material.

I made an offer, but it wasn't high enough. I did just win a Sonnet G4 500, with interestingly a 550MHz rated CPU on it. Curious to see if it'll maintain the 9x multiplier up to 58MHz bus, for 522MHz.

Unless I am mistaken, and maybe this is already known: it seems not all 750L CPUs supported a 10x multiplier. I think it was added with revision 3.2. I have a 350MHz 750L that seems to be revision 2.1, and a 450MHz that seems to be 2.2 (as reported by Gauge Pro). The datasheets seem a little...

hoping != guessing Several similar interposers have been designed and successfully implemented, not sure what issue you see with this specific one is. I am fairly far along with the design, and it does not seem "ridiculously complex" so far.

Yes I believe you are correct. But actually I forgot mSATA and M.2 SATA were distinct from each other. M.2 SATA is probably the better option.

Oops, sorry, I did mean I've been wanting an M.2 SATA PCI card. Any way to mount a commonly available SSD into a PCI slot is great, and this is the only PCI card I am aware of that allows this.

This is amazing. Just bought one. Will probably buy more. I've been direly wanting an old-Mac-compatible PCI card with an mSATA connector. The hard-mount looks well done, too. Any thoughts on making variants with 2x mSATA and/or 2x 2.5" (instead of 1 each)?

by "per thread use" I meant "per logical core". Was trying to account for the hyper-threading.

That's why I normally use encoding, it can use all 24 threads my CPU has. I also have a desktop resource monitor (conky) display at all times my resource use, including per thread use. Normally encoding would push all cores to 100%, but on my 12900K it only pushes to like maybe 85%. So I do...

I've had computers run fine at 100% reported CPU use for extended periods, but crash (and/or run uncomfortably hot, cant remember its been a while) after a short time using a dedicated stress test program. So I still always run the CPU at "100%" for testing.

60MHz froze on boot. I had what appeared to be a stable system at 58MHz. However, un-stuffing some small installers gave a "could not verify data integrity" or some such message. I suspected it could have been related to the bus overclock, and so tested lower speeds. 55MHz never gave the...

Awesome, I will try them all. Normally on my newer PCs, my stress test consists of encoding videos; any suggestions on what I can use here? I usually prefer real world CPU intensive apps over dedicated stress-test programs, but that may be more due to superstition (over fears of running chips...

Found most of my answer, and I'm sure many are aware of it; MacBench. It shows actual CPU and bus speed.

Just booted my 7300 for the first time yesterday, and the first time I booted a PPC604 Mac in like, 15 years. This machine is going to be used for bus overclock testing 3 different mainboards; a 7300, a 7600, and an 8600. I am using an XLR8 ZIF Carrier with a 350MHz G3 750L, 320MB 60ns EDO RAM...

First thing I tried was separate sync, and it's working perfectly. Thanks!

I think you should go with an mSATA SSD the one all the way left; much smaller than a 2.5" drive

I've been on vacation for the past few weeks, so haven't worked on it a whole lot since, but should start back up again soon. I will say it has been a great learning experience using KiCAD. I've made a lot of it, then started over twice. But I think it's helping me find the easiest and most...