The freedom of a Friday afternoon at home has allowed me to fiddle with the 2300c some more. I ran it for 20 mins to get it good and hot in order to see where the trouble lay. I now suspect that the offending item was a small square copper-wound component (transformer?) at the left under the keyboard, which was very hot to the touch.
As this component cannot be replaced, I have adjusted the heat sink to make better contact with this component. Since booted again, the 2300c has run without crashing for some hours. The machine is still hot at the left, like many ppc powerbooks, but so far, and with this small adjustment, it runs without complaint.
I also recelled an old Duo battery with fresh NiMh cells. What a business! There isn't much room in there, is there? In fact, I was unable to get the top back on properly, so I have glued the little buggers in place, cut part of the top off and glued it on (so as to be able to replace the sliding cover), and all seems to be good. Electrical tape went on there too.
This is the first time I have been able to use the 2300c for any real length of time. I have previously used a Duo 270c and 280c, but find the small screen a challenge. The 2300c screen is not as sharp as the gem-like 270-280 series, but it's bigger and that helps. It's a rather elegant little unit, and evidently very lightly used in the past. I've installed 7.6.1 with Speed Doubler and Wordperfect 3.5e, a 48MB chip for 56 MB total, and a Toshiba 3GB HD. I have three good(ish) Duo keyboards (and two absolute duds), so I have also installed the best of the three keyboards on this one (and have no complaints to make about it). If I can get it to run reliably, and assuming that my battery continues to work as expected, I think I'll try a major writing project on the thing, as it is so much more compact than my Wallstreet, which I have lugged about for years, and so much more expendable in terms of the threat of theft in libraries etc. than a Macbook or the like would be. Retro goodness.
As this component cannot be replaced, I have adjusted the heat sink to make better contact with this component. Since booted again, the 2300c has run without crashing for some hours. The machine is still hot at the left, like many ppc powerbooks, but so far, and with this small adjustment, it runs without complaint.
I also recelled an old Duo battery with fresh NiMh cells. What a business! There isn't much room in there, is there? In fact, I was unable to get the top back on properly, so I have glued the little buggers in place, cut part of the top off and glued it on (so as to be able to replace the sliding cover), and all seems to be good. Electrical tape went on there too.
This is the first time I have been able to use the 2300c for any real length of time. I have previously used a Duo 270c and 280c, but find the small screen a challenge. The 2300c screen is not as sharp as the gem-like 270-280 series, but it's bigger and that helps. It's a rather elegant little unit, and evidently very lightly used in the past. I've installed 7.6.1 with Speed Doubler and Wordperfect 3.5e, a 48MB chip for 56 MB total, and a Toshiba 3GB HD. I have three good(ish) Duo keyboards (and two absolute duds), so I have also installed the best of the three keyboards on this one (and have no complaints to make about it). If I can get it to run reliably, and assuming that my battery continues to work as expected, I think I'll try a major writing project on the thing, as it is so much more compact than my Wallstreet, which I have lugged about for years, and so much more expendable in terms of the threat of theft in libraries etc. than a Macbook or the like would be. Retro goodness.