Motherboard: Power Mac G3 Blue&White Rev 1 (more or less functional but ATA controllers died not too long ago while it was being used at my dad's shop, don't ask me what happened, I have no idea and was generally 14km away from it at all times)
CPU: Motorola XPC750 PRX300PB 300Mhz 1MB L2 (see notes below, still functional)
CPU Cooling: Stock heatsink with Evercool EC5010M12CA (functional but bearings are in bad shape)
Memory: Total 512MB - OWC 256MB PC133 CL3, unknown(can't remember) 128MB and 2x 64MB (unless otherwise noted all RAM is 3.3v 168 pin PC133/100 SDRAM, all still functional)
Video Card: Radeon 7000 64MB DDR PCI V/D/VO (in 66Mhz 32bit PCI slot, make unknown as it is black with silver finned HS and not really marked, still functional, overclocked and in listed in my current sig)
Hard Drive: Samsung SP1213N (120GB, failed last January literally overnight and just hours before I was about to purchase a new HD)
Optical Drive: Toshiba SD-R1312, unknown DVD-ROM (I think that DVD-ROM might be the one I have in my current sig.. but I cannot really remember, The Toshiba combo drive lost control of all it's internal motors a while back)
Sound Card: Onboard Apple Burgundy (aka Crystal CS4211-KM, 16-bit stereo audio input and output(3.5mm), 44.1-kHz sampling rate, functional)
Power Supply: 480w Demon Silver Chrome ATX (failed(well, it kinda still works...), some external wires intermittent and the caps look like they are -><- this close to exploding)
Case: Generic massive ATX(same one the computer currently in my sig is in, functional and under the wrath of my drill and other cutting devices at the moment :P )
Ok, so, this CPU was from a Beige G3(the previous model) and did function at 350Mhz (it used jumpers on the mobo, procedure here:
Power Macintosh G3 (B&W) Tune-Up 1 ) but I ended up with a curious pattern of lines both horizontal and vertical where something, an icon or window for example, would have these lines. The lines were gaps and you could see the desktop background through them if I recall and they changed number and positions in sync with the size of whatever object they were affecting. I have _never_ _ever_ seen this sort of thing before when overclocking any CPU, bus, GPU or VRAM.
As a result I normally kept it at 300Mhz but later I got Rev 2 B&W board that came with it's stock 350Mhz CPU (an "IBM25PPC 750L2DMIA 350W" and it ran fine at 400Mhz. That IBM 350Mhz did not even boot at 450 though so I think the cache was just being pushed too far. I have also found that if I dump it into a Beige G3 board I can push it to 433Mhz because of the bus speed that board has.
Heh, later I got a Sawtooth board with 450Mhz G4 and pushed it to 500 *pets Weller WTCPN* (procedure here:
Overclock your PowerMac G4 Sawtooth Single and Dual ) I don't think I bothered going higher though as the 7400 series normally had issues with over 500Mhz and I ended up getting a 1Ghz 7455 that I still use when I swapped that Sawtooth board for a Digital Audio board.
That is pretty much it for my primary tower based Mac desktops. Please don't force me get details on all the other things I have overclocked. >_<