View Full Version : Vintage Mitsubishi MP286L Laptop boot issue

26-02-2008, 08:00 AM

My laptop won't boot and the cmos battery is flat. Google tells me a special prog is needed to set up the bios settings from fdd. I also believe the fdd is 720kb. The laptop itself is from late 80's, I think 1989. I don't know what os it has either as yet. I was told the 720kb's were last made 15years ago, but I scratched around and finally located a 720kb disk to use. My XP computer tells me the file system on that old floppy is FAT.

My question is: Can I write to it from XP with its' 1.44mb drive and expect that to work in the laptop? What boot DOS version should I use on the floppy?

Here is some google info:



Take trip down memory lane....

26-02-2008, 10:13 AM
You don't know what O/S? Why bother then?

Its probably DOS 5.0. Or maybe DOS 3.0.

26-02-2008, 12:00 PM
That must be the older, slower 8 mhz model - the blisteringly fast 10 mhz model produced the next year (1990) had the standard 1.44 floppy! :rolleyes:

This laptop was manufactured in 1990 August and is a 286-10hmhz computer in a laptop form factor and has a customized carrying case. Actually, the proper word for this computer might actually be luggable, since the MP286L is almost 4 inches thick and weighs more than 10 pounds. It uses an 11.5 inch LCD standard 1.44 floppy drive, and a MFM 3.5 inch hard drive (type 11) and has a full size keyboard. An interesting feature of this laptop is that the power LED also functions as a reset button when it is pushed.
Museum piece

26-02-2008, 01:13 PM
Well if it can read it and it says it's using FAT filesystem then it should be able to write to it fine also.

Then you'll just need to find a way to get it bootable with DOS if it's not already - and do you even have the setup program?

26-02-2008, 10:29 PM
Well, success of sorts though not quite the way I expected it. I downloaded the dos5 boot files and extracted onto a 1.44mb floppy. It worked, so I guess it must be a 1.44mb drive. The setup prog "gsetup31", I downloaded and it works but my cmos battery is flat. For fun I might get a new battery but couldnt see myself actually using one of these dinosaurs.
My, how things have changed. This is a laptop before the term was invented, it's just that you need a very strong lap.
I will post back when I get the battery.......
Thanks to all.

26-02-2008, 11:10 PM
Why exactly are you doing this? You know, laptops (I mean proper ones) aren't actually that expensive nowadays...