The Toshiba has a weird little setup which is A-1, and its shared with I/O16. It appears I/O16 becomes A-1 in byte mode. But A-1 is not A1. And it doesnt really explain what A-1 ac…

The portable and backlit portable both use 100ns ram. This is my first time making a ram expansion so if I have the logic wrong its a simple matter of modding the VHDL and flashin…

techknight said: I would rather have the Toshiba SRAMs trag. Why? Less CPLD lines I need the better. I will end up using an XC9572XL CPLD as the memory address chip select d…

oh man this is pretty exciting. 

I would rather have the Toshiba SRAMs trag. Why? because they are 16 bit and plus they have both an upper and lower byte access mode. This is a requirement for the 68000 as there i…

The portable keeps the card hot at all times however there is a standby signal. But I wouldnt use it. 3.3v logic isnt a problem. The question really wasnt about the design. More a…

i'd deffinatley buy one since i only have a 1mb card for my portable and as the onboard ram is bad there is a good chance the upgrade card might be bad aswell Even at $6.88 a chip…

techknight said: I have been thinking, I was going to design and build a RAM expansion card for the portable, with the potential to max it out at 9MB.  Question is, would an…

Isn't the Portable's RAM actually psuedo-static, not static? Just spitballing, but if you could make a board that could take a BGA here's a 4Mx16 70ns Psuedo-RAM that's $5 a head: …

My 5120 doesnt have any expansion cards, and I had noticed decent cards are hard to come by, if not impossible.  Soo...  I have been thinking, I was going to design and build a R…

Even if it runs it won't last for long. The first generation G5's have a terrible reputation for dropping dead due to RoHS problems and thermal flexing, not to mention the LCU equ…

I think they went with Aluminum cases for heat reasons as well. Apple has a history of using plastic cases (easier to style) whiles PCs were metal boxes.

I'm guessing they need all that extra space for airflow, I wonder how that cool that machine could stay if it used the case as an extension of the heatsink..

I was surprised they ran 10.3. Should check to see if I need a patch installed since mine is the first model. Kind of funny how large the G5 tower is yet only holds 1 optical and …

Yep . . . but that friggin' cheese grater. Maybe some graphite grillwork?

Trash: the earliest G5s came from the factory with a special G5-specific build of Mac OS X 10.2, and all subsequent models had some version of 10.3 or 10.4. A late-model G5 from b…

Thanks Joe from Des Moines. I posted an update on his medical thread: https://68kmla.org/forums/index.php?/topic/23626-medical-update-916-health-scare/&do=findComment&…

I hope Elfen is feeling better soon! Joe from Des Moines sends his best.

Hello, The 17'' PowerBook I had a while ago was badly dented on the left hand and side of the lower case. So I decided to tap the damage out with a tack hammer. I managed to tap o…

Okay. If that's the case probably what I'd suggest is going to iFixit, browsing their take-apart/repair guides, and following one just remove the top case. (The instructions for th…

Its the 17in model. As is, if you have it resting on a desk or your lap, you can't hardly tell that there is something wrong. But if you inspect the machine, yes it is damaged in i…

For me, I always felt the G5 never lived up to its Hype,   or my expectations. Back in 03, man it really seem'd like the G5 CPU was the next best thing since sliced bread. And, i…

Holy crap! http://www.everymac.com/systems/apple/powermac_g5/specs/powermac_g5_quad_2.5.html

Interesting, the early G5 runs 10.4? What was the lastest, fastest G5 that ran Classic under 10.4.6 me wonders?

Yes, each logic board is keyed to the CPU speed. Pain in the rear, as you can imagine. Like 8 different PSU combinations too.