Apple IIGS boot requirements?

[PotShotScott]

Question as I can’t remember from my childhood in middle school. I have a IIGS that I’ve gone over. It chimes twice and the LED comes on. I don’t have an Apple monitor so I was going to try composite video.

I’ve got all the proper Voltages but the 12V rail is 11.70V. I don’t have any disk drives or OS materials at the moment. Clock battery is dead but I haven’t seen any mention of not booting due to dead clock battery.

Question - why does it chime twice and what would I need to have in the machine to see video or some sort of life when I turn it on?

 

[LaPorta]

If it is working, usually you’ll hear the startup sound (as you say), then when it can’t find a disk to start from, it makes the same noise again and displays a message like “can’t find a startup device” and bounces an Apple back and forth the screen. That is likely what you are hearing. You’ll probably see that if you hook it up to a composite monitor.

 

[PotShotScott]

Sweet! Thanks for the quick response!

 

[volvo242gt]

It'll say "Check Startup Device!" with the alternating open/solid apples going back and forth.

 

[PotShotScott]

Thanks! I'd like to do the clock battery before I get too much further. Has anyone swapped the original 3V battery with a modern CR2032 socket?

 

[volvo242gt]

This is what I'm using on mine. Fits nicely under the power supply. I use two Energizer Lithium AAA batteries for the correct 3.6 volts.

Battery: IIgs ROM0/1 Caddy

The battery in the ROM0 and ROM1 IIgs system connects to the motherboard using wire "legs". These legs can be easily cut close to the battery. This provides a simplistic way to remove the battery and

www.reactivemicro.com

-J

 

[PotShotScott]

Oh that's easy. Thanks Volvo

 

[volvo242gt]

Not a problem, PotShot...

-John