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I bought a pair of 8-chip 256MB DIMMs from OWC which do work in my Wallstreet. They don't mix with one 8-chip and one 16-chip, though. OWC sold them as low-profile for the lower slot, and had a 16-chip standard profile for the upper slot, and mixed didn't work. These are certainly cheap enough...

With my 300 MHz G3 Wallstreet, I found the easiest way to install OS 10.4 is to pull the HD and put it in an external FireWire case, then use my iBook to install. It can be done with subterfuge and XPostFacto, but takes forever and there are a couple of tricks which I never remember from one...

Why not? My 1977 Apple II still works with all the original parts except a couple of dead keys on the keyboard. I oughta haul my Mac II out of the closet where it's been supporting a couple of boxes of junk for the last decade...

If it's been rained on for several years, chances are the power supply has internal corrosion and the chip sockets on the mainboard will be oxidized and corroded. It may be salvageable by a good take-apart and cleanup, it may not. Since none of us can see the machine, we can't guess what the...

The CPU writes to the FPGA to configure it thru the same buss it sends video after the FPGA is running, so there is no buss conflict. I think Lapis embedded the config within the driver, instead of using an EPROM, so the FPGA data is easily extracted and hacked by editing the driver file. Xilinx...

A Wallstreet with a G4 upgrade and maxed RAM? Nice score, and yeh, it takes a while for that much RAM to run POST. :)

For the SE's standard built-in video, a PC monochrome compatible monitor was usually used with the horizontal sweep circuit adjusted to run at the Mac's higher frequency. As for the 2-page display card, that will depend on the card. There were a lot of different monitors and setups used, and...

The price is certainly right, and you'd probably upgrade the drive and RAM anyhow. The Sawtooth is a workhorse, a great OS9 Mac, and a solid OS X performer. Congrats!

The RAM controller used in beige G3s could drive 3 slots by itself. It needed driver chips to handle more slots, and the driver adds a wait state to each memory cycle. Three slots is most common in G3 and G4 series.

It will be difficult to tell whether your cube is in target mode without any video. It should work though. Even if your laptop has 10.5 installed, it should let you install 10.4 on an external drive (the cube). If you have an external hard drive, you could install Tiger on that and update using...

Sorry, the flashing utility is only for PC-DOS. You can use any old PC with PCI slots, so it won't cost much. You will need a DOS boot floppy and internet access to download the utility and ROM files to the floppy. You can do that from a Mac with a USB floppy drive. Instructions are on...

Similar experience with my Sawtooth running a 1.2GHz PLX CPU. In my case the DIP switches which set the buss multiplier evidently glitched and it went to 1.6GHz, which is way overclocked for a 1GHz 7455 (PowerLogix had already overclocked it by 200MHz). It overheated and the symptoms were the...

An FX5200 is a good card for the B&W except that OS9 support is limited to generic VGA mode. Kvanderlaag's instructions are correct. I have flashed a pair of 5200s for mine.

Given the choice, I'd take the G4. The B&W G3 has so many problems with the IDE disk controller that it is useless with any modern drive unless you get a PCI disk controller for it, and those cards cost a lot more than the computer. The G3 plastics are thinner and break around the screw...

I haven't used that particular adapter, but with proper drivers, SCSI ethernet adapters will work with System 6. You need to install a compatible version of AppleTalk, and probably Public Folder or equivalent to do file sharing. The other popular file sharing method in System 6 days was TOPS...

Sure, it should work. I don't know of a Plus schematic published anywhere, so you'd have to trace the decoders and find the matching address line to a 128/512. On my Mac 512K MoBo, the W1 jumper is between a pad connected to +5V (not ground) and an address line. The 47 Ohm resistor is between...

As you found, the switch disables the extra address line, making a 128K Mac. The switch should connect to +5V and the address decode output as shown at W1 (wire jumper #1). Running with the switch closed should be safe as long as the resistor is still present. Have fun with the ROMs. You could...

I believe Lisa uses fonts stored in RAM, so unless the CPU is running properly and power on self test completes, the screen will be filled with a random pattern which won't move, that is it won't roll, flicker, or tear like an old TV with misadjusted horiz & vert controls. If the screen is...

FWIW - It's been a long time and memory isn't infallible, but I don't remember any shipping insert in the Apple 400K floppy drives. There WAS a cardboard insert in one of my 3rd party 800K drives. There was a yellow insert in the Apple II 800K Unidisk, and of course in Macs when they began...

Which Apple II do you have? It's easy to defeat the color killer on a II or II+, and I bet it can be done on a //e or //c as well. Bear in mind, text will have purple & green tinges, and 80 col will be illegible. I'll dig out the Apple II schematic and tell you which pin(s) of which chip...