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Finally got the Cat-5 Ethernet card for my SE/30, and it works beautifully. Now I want to run MacSSH and AUX on it. I upgraded my Quadra 700 to 68 MB and put its old 4MB SIMMs in the SE/30, but it won't boot with them in there. I've tried putting the 4x4MB SIMMs in Bank A and leaving the 1MB...

This site is a lot of fun. Great advice and smart people here. Here's a couple of questions that ought to be interesting. 1. What was the fastest G3 system ever produced. I'm familiar with the 700 MHz iMac, but was there another that was faster? 2. What was the quietest G4 ever made? I know...

I'll double check those pins. I think the card is in need of washing. I'm using the card in an LC 475 with a replaced 68040. It's running System 7.1, and I ran the 2.2.1 installer. Does that sound OK?

Hi Everyone, Does anyone have an LC/PDS IIe card schematic? I have a card that gives me the "defective" error message, despite recapping it and resoldering all the PDS pins (thanks to a certain post on this website).

I truly admire your patience. I ditched my PowerLogix upgraded 8600 in 2003 after I got my tangerine iMac G3 400 MHz. These days, I'm completely spoiled with my 4.5 GHz 4690k on SSD with Arch Linux.  The funny thing is: this overclocked monster gaming PC is the first machine I've had that...

And it took apple 10 years to recover from the damage that penny-pinching did to their reputation. :(

So you were using an external Flash ROM? The newer Xilinx FPGAs have Block RAM slices that could be used as the ROM storage, and it wouldn't be terribly difficult to load the Mac ROM into BRAMs from the bitstream. Such a setup would not have any of those timing issues.

Woah, he lives here! BTW, I randomly found your 68 Katy project and used it as a reference for a system I made, great stuff. In your comments you mentioned some possible clock-edge synchronization issues regarding the stability. Some of the schematics show a slightly different clock frequency...

Wow, thanks for making me aware of this. This is fascinating and impressive! Yeah, this would be a great starting point. He's done a hell of a lot of work. Looking through his code, which is an intimidating amount of verilog, I read some of his comments discussing mysterious behavior and...

Great response, thanks! I can't imagine that a few bus decoders/mux chips would save enough money to make an appreciable difference in cost relative to a multi-thousand dollar machine, unless the cost of adding layers to PCBs was enormous in ~1990 (doubtful). I was always suspicious that they...

I'm an FPGA guy, and I really like this idea. As others on this thread have stated, increasing the CPU clock won't buy you anything with slow ROMs, RAM, etc because you'd spend most of your time stalling.  But putting the system on FPGA is a way to get everything up to speed. Implementing the...

Two general questions about LCs and systems with LC040 that I've wondered for a long time: 1. Is it possible to replace the LC040 with 68040 in a system with a socket? Are the pinouts even the same? 2. Why did LCs only have 16 bit data busses instead of 32? How did this really lower the cost...

Alright, Mr. Stick-in-the-mud, but this thread is about PowerPC for modern tasks, so if that isn't interesting to you...

Crusty hardware -- you know forum you're on, right?

Techknight, got it working! Thanks for your urging to check into the address and data lines. Apparently, only the first 8 address lines are actually connected to the ASC. I took out the 68030 and checked for continuity on the address lines and saw that A6 was not making any contact. ...

Techknight, I've been looking at the schematics and noticed that the ASC address lines are A(0:11), and since the glue chip doesn't have connections to A(2:11), I assume that the CPU is the thing that directly talks to the ASC. Is this accurate? In other words, should I only be concerned about...

Is the objective of this challenge to use the PPC hardware, or use retro software? My Dual 1 GHz MDD G4 running Lubuntu 14.04 PPC is a competent machine. Current mainline builds of Firefox with HTML5 means it's usable. For non-web tasks, it's surprisingly snappy -- much more than OS 10.3 or .4...

Thanks techknight, I think there must be more wrong with this than just bad caps as you are suggesting. Another symptom is the machine will freeze for a short amount of time after playing a few sounds. If I click the alert sounds in the sound control panel a few times in a row, it will play the...

Yes, the left channel Snd chip was out. Replacing it fixed the sound after boot. The distorted chime is still puzzling. In case anyone comes across similar problems, I'll go into some detail. There is 1 ASC (surface mount, 44 pin sound processor) and 2 smaller chips (DIP16), one for each...

Now I want to install A/UX on my Quadra 700! I really wish I had kept my 650 from when I was a kid. That thing ran Marathon 2 like a champ. IIRC, the bad part of the 650 case was the cover. The ability to have a tray CD ROM in the box was nice. If there had been a separate cover and front...