She paid five grand for it when it was new (and worth eight, or at least, it sold for eight grand with a two page mono and an 8*24 display card) and she definitely got her money out of it. My mother used her Mac IIci with System 7.1 or something for absolutely ages, until just a couple of years ago in fact. Macs are workhorse machines which will not always be the fastest horse but will usually run for a long time. The biggest plus of a macintosh is that it is friendly and generally consistent in behavior. The fact that you can make it run on them with third party software that tricks the installer into going ahead and doing its job is particularly pathetic. But what's stupid is that the OS was not designed to address this issue in the hardware.Īpple's support of their own hardware is selective and short-lived at best, as evinced by the lack of support for several macs with G3 processors in OS X. Well, almost on the second count, but certainly I will forgive an error, even though Sun managed to use the same chip in several Ultra systems quite successfully. Now, I can forgive apple for having a bug and for not replacing motherboards. The cheapest software I could find to work around the problem was $80.Īnd of course, there's no firewire booting on those models, so I couldn't get around the problem that way, either.Īpple has since suppressed information about this by removing the applicable documents from the techinfo library when it was folded into their current support system.

However, you need a third party disk driver to do this. There is a workaround which was considered acceptable given that these are some slow-ass macs, which is to use the PIO modes. I verified that this was the cause of my woes with an OS9 app that tests disk writing and yes indeed, I had this problem. Unfortunately mine was not a drive which you could use and if there was any significant CPU use whatsoever it would write invalid data. You can use slower UDMA methods on some drives, and some will do the whole shebang, up to whatever UDMA mode it supports most.

Ever owned a blue and white G3 and decided to upgrade it? If it's revision 1, then you cannot use UDMA transfer modes on most hard drives, and have to resort to PIO.

Pearpc mac os 9