Try holding the reset button for 15-20 seconds, then let it go. If that fails, unplug the AC and remove any batteries, leave the system like that for an hour or so and then plug t…

Plugged a known working power adapter into the 1400c. Pushed the on key and nothing. Pushed the reset button at rear and the light at the top of the screen comes on. Nothing else …

I have seen that behavior ... I can't remember where. /wracking brain --David

The only fixable cause of that symptom is a display cable problem. The flex cable is not infrequently to blame. If squeezing somewhere on the edge of the lid around the display mak…

I've tried all of them - different batteries (although they only last about 30 sec each), no battery, PRAM reset and PMU resets. Plugged in overnight, cold boot, etc. I'm positive…

Thanks for the suggestions. I've tried all of them - different batteries (although they only last about 30 sec each), no battery, PRAM reset and PMU resets. Plugged in overnight, c…

You might also consider an open-firmware reset dance. Can't hurt, might help.

Wait a sec... Isn't there a PMU reset button? I also thought that the lappies have a CUDA somewhere, no? Pull the battery and run it off AC. Does the problem happen? How about o…

That is really, really weird.

Sorry to hear about your problems. In all the years I have been using OS 7, 8 and 9 I have never heard of the problem you describe. Hope you get it sorted out soon.

In a way. Here's an issue I've seen with iBooks running OS 9 before: as soon as the desktop loads, the powerbook falls asleep. Wake it up, it falls back asleep. No amount of PRAM r…

The only fixable cause of that symptom is a display cable problem. The flex cable is not infrequently to blame. If squeezing somewhere on the edge of the lid around the display mak…

I hope someone can help me! I have a powerbook 1400 which I use daily, however a short time ago it began having two bars on the right side of the display. These are most noticable…

ROM 2.5.1 + Mac OS 8.6 definetivly works! I´m using it right now

So, the second Powerbook has had its fuse repaired, and I touched up the soldering on the first PB as well, thanks to new flux and the awesome video at CuriousInventor.com However…

Well, its still very unstable and unreliable. I bought a 256 mb stick and i will try that out, should be okay.

Well, i have gotten it working for now with vm on, hopefully it will run better. What i did was set the disk cache in memory control panel to Custom setting at 2 mb. Not sure why t…

Okay, its running with the 128 mb in, seems to be okay. I started up with extensions off, and did a ram test with guage pro, the ram was ok. So i took the daughtercard out and blew…

But i have no problems with only the one module in so i don't think it is an extensions conflict, i think its just when i have them both in and extensions on it has more to load in…

Interestingly it boots with extensions off but when they are on it freezes either before the finder loads or right after the icons show up. I tried flipping them around and the dau…

Are they both the same speed? Some modules aren't backwards compatible (speed wise) so could be conflicting Just a thought

I can't see how i would have a bad ram stick, if i can use the lombard with either on in without any problems. Its just when they are together that i can't boot.

You have a bad ram stick.

I got my lombard from ebay today, 333 mhz, 64 mb ram, 9.2.2 This runs os 9 great and thats where its going to stay i think. WamCom is a nice browser too. I have been trying to add …

I replaced the fuse in the one with the grey screen/no boot. ... It's booting Mac OS 9.1!! I'm excited. The soldering job isn't the best, but it works for now.