I would guess it was a power management issue with the software.  Like shutdown every 15 minutes.  It only asked you because you were using it.

Yes , strange. Maybe a virus, there was some : http://lowendmac.com/2015/classic-mac-os-viruses/ Can get them with old downloaded games sometimes. Install Desinfectant.  Happy t…

I booted from a 9.1 CD and it wasn't doing it, so I did a fresh install... and it's ok now. Genuinely confused as to what caused it (~15 years playing with Macs and I've never see…

Ok , thanks, was making my life harder for nothing then

Where you lift the screen does not change the amount of pressure, it just makes it harder for you to open it since you have less leverage. If there is 2lbs of resistance, there wil…

Lubricate the hinges helps. I usually remove the two hinges covers, and apply a bit of silicone oil , then put back the hinges. Also , when opening, don't hold it from front of th…

Have you tried booting from a system cd , see if it does the same ?

I know this isn't a mechanical problem, as I've gone so far as to unplug the power button to see what I can do here. I know the power button works, because it can boot the thing f…

(Elfen you were right, the floppy that I normally put disk tools on had died.  The SCSI CD drive will no longer boot either the c or cs, but I think it may be a termination issue. …

Ok so the 5300c's bus is fine; this is at least partly a drive issue.  The drive in question, with a jumper, spins but isn't recognized.  Without a jumper it spins and shuts down i…

I was going to say, Elfen, if you can clue me in to any factors you think might affect the cards, I can test them systematically and make like a grid along with a correlation of th…

The adapters giving problems are all directly PCMCIA/Cardbus to SD.  I successfully set up my 16gb card - the one that had the weird OS 8.5 Disk Tools System Folder on it - with th…

This thread is about PRAM batteries. The native 3400/Kanga PRAM battery is NiMH, not li-ion.

Ah, well ... The native PB 3400c/Kanga battery is LiIon, not NiMH. AichEss

For the record, if anyone buys the PB 3400c/Kanga NiMH battery replacement, black is positive and red is negative: in addition to switching the connector you will need to reverse t…

Lets go back to the very beginning... You got... A CF in a PCMCIA adapter that crashed a 3400 and gives problems on a 5300? It gave  a Sad Mac on the 3400 and then bars on boot wh…

No strange sounds! Hope the glass is still OK!

Inside the Widget is a glass scale used for head position feedback.  The scale is attached with glue and 30 years later on many Widgets the glue has failed.  This  commonly results…

The floppy drive has been very well tested and works perfectly.  The disk also works perfectly. I was going to say the SCSI enclosure didn't work but it appears to be booting to O…

I think it might be because the disk isnt getting up to full RPM? I know the servo controllers of HDDs are smart enough if it senses a problem with spindle speed, the rest will han…

Yes. This is not going well. Sometimes the brake releases, but after that not much happens. I'm not sure if this disk will work ever. But I will try it on a Lisa one day. That wil…

On your video, I never hear the brake release. After the drive comes to speed - about 5 seconds or so, you should hear a "clunk" as the brake releases and then the drive should sta…

Hi,  I have some. Send me a P.M, if you still need one. Take Care,

Elfen said: I think you can turn the unit on as a SCSI Drive and connect it to another Mac through the SCSI Port and inspect the drive like modern Macs can connect by FireWir…

bigmessowires said: A commenter on my blog also pointed out this homebrew adapter based on an Altera DE0-Nano. It's got a very nicely detailed write-up of how it works. https…