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I finally got everything I need (I hope) to power on and use my Power Mac 7300 and 8600. I just got a Dell E151FPb LCD 15" 1024x768 monitor that I am hoping to use with the on-board video of each. I have a Mac to PC VGA adapter that I am also hoping will work. It has dip switches for the...

Thanks for the thorough reply. Seems like my 7300/200 board may be a good candidate for a bus overclock then; 50MHz from the factory and no A/V circuitry (assuming the A/V circuitry comes into play). My goals with bus overclocking are just to see what sort of bus speeds would run reliably with...

Yes, I should have just added those few extra letters so there'd be no ambiguity. I think it'd be fun to build oddball systems into 7500 type cases. Another that'd be cool is a dual 604e (again, would need PSU and cooling considerations). But I really want to do a 604ev, as I've heard even...

I mean I have an entire 8600 Kansas motherboard.

I meant like PCB configurations. You showed 2, and then I believe the 604ev are different. So that's at least 3. Basically wondering how many different PCBs I would ever need to know the locations of the PLL CFG jumpers. Yep, I've got an 8600/250 (604ev) board that looks like a direct swap...

Wondering what the differences are between the the various 7500,7600,7300,8500,8600 boards. One thing I am interested in is bus speed overclock-ability, but really interested to know of any other differences they might have. For example, a 7300 lacks the A/V input circuitry. Might this help...

Awesome info. Do you know how many different card variants Apple used? I like the 604 series. I was even thinking about building my 7300 into a 604ev system, and overclocking a bit. Would be fun trying to meet the higher power and cooling demands in the smaller case. I remember reading...

Was 100% stable. The link in my sig is the article I wrote about it. Was before my professional career as a tech, so, some things I say there are a bit noobish, but still good info in there.

Are the XPC chips straight swaps from the Blue G3? Or what are the sources for these chips? Do they need any sort of programming before being used? Is the XPC chip the one that has the PLL config to set the bus speed? Way back in the day, I got my Sawtooth G4 running with a 120MHz bus, but...

I like clamps like this: https://www.leevalley.com/en-gb/shop/tools/hand-tools/clamps/41712-plastic-spring-clamps

Thanks very much. Attaching the info here: 6,7,9 = 66MHz 5,6,7,8,9 = 90MHz 5,6,7,8 = 94.5MHz 5,6,8,9 = 100MHz 5,6,8 = 116.3MHz [unstable in 1 test system - 38.75Mhz PCI bus] 5,6,9,10 = 120MHz [stable in 1 test system - 30MHz PCI bus] 70MHz & 105MHz settings not found

I know the information is out there, but I am having trouble finding it... What are the jumper settings for changing the bus speed on Blue & White G3s?

I believe it probably runs fine at 1.5GHz, but I wanted the 64MB VRAM, and a chip I believe would be more likely to run at 1.58GHz. I understand the seller's confusion, but wish he would have accepted the return with less arguing. Looking at his history, he has sold other Mac Mini 1.5GHz, as...

What I've done; you should have seen what the previous guy did. Missing RAM clip, broken motherboard mounts, missing screws. I've repaired electronics professionally for 15 years, this thing will go back together in better condition than when I've received it. As far as just wanting an OS 9...

The overclock is confirmed. It has smooth unmolested solder pads where the blank would be for 1.25GHz, and looks like the other 3 PLL jumpers were just broken off with a knife (with 4 missing jumpers, that is the setting for 1.5GHz). I opened a return request. There's one on eBay right now...

I just looked at the PLL location. Yep you're right. Has 0 jumpers, 3 look like they were popped off with a knife. Wonder how this is going to play out with trying to get a refund... Thanks

Would there be evidence on the board of an overclock? Somewhere I should look for evidence of hand-soldering?

I just purchased what was advertised as a 1.5GHz Mac Mini G4. I did not boot it up yet. I disassembled it and checked the writing on the CPU. It is labeled as a 1.25GHz 7447b. The main-board is also labeled as 1.25GHz. Is it safe to assume this is *not* a 1.5GHz model? Apple wouldn't run a...

a stock 266MHz 750 module runs the cache at 133MHz, and a stock 533MHz 7410 module runs the cache at 266MHz; wouldn't I want those faster cache chips? beautiful, thank you I'd actually personally be happy with 66 to 83MHz, but yes 100MHz would be ideal

I do plan to make or have made 7410 modules, but that seems really straight forward. I guess, can the pinout of the cache chips be counted on to match the ones pulled from the G4 modules? Back to 750FX; if the cache chips are removed, then the interposer could be twice (or more) as big...