Multistart II Rom Switcher


3 ROM version

Download a High Res Picture of the 2 ROM version
High Res (800 x 341)

Kickstart Switcher for the A2000 which allows you to switch between different versions of KickStarts. This Kickstart switcher is unique in some ways, because some versions can actually hold three kickstart chips instead of the usual two. The pcitures here show both the 2 ROM and 3 ROM versions of this device.

Note: The crocodile clip on the pigtail wire must be attached to either pin 11 on the paula chip or pin 41 on the gary chip. This is true for both versions of this device.

Selecting the Boot ROM and the Keyboard Selectable ROM
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The ROM slot with the round holes is the default boot ROM. The other two
are for ROM chips selected with this jumper.

Locate the three position jumper on the Multistart II (the one off by
itself) that is on the bottom center of the board.
By setting the jumper to the position closest to the ROM chips
themselves, you can have the far (currently occupied in the image) ROM
as the Alternate (keyboard selectable) Boot ROM. By setting the jumper
to the other position (the one farther from the ROM chips - current
position in image), it will use the center slot for the Alternate Boot
ROM. This jumper doesn't effect the fact that the Default (normal) boot
ROM will be whatever is in the ROM slot with the round holes.

Setting the MultiStart II for Amiga 500 or 2000
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"You need to set the MultiStart II for the computer that you are
installing it in. Locate the three position jumper on the MultiStart II
board that is on the bottom right side of the board (currently occupied
by a green jumper in the image). The default setting (current) is for
the A2000."

(The other setting is for the A500)

(quoted from manual, with my (notes))

"You can optionally install a switch on the two pin header connector
(the only remaining jumper block on the board :) on the right side (next
to the jumper block with the green jumper on it) of the board if you
have three ROMs installed. This will allow you to switch between the two
alternate ROMs to use with the keyboard."

You use the ctrl-Amiga-Amiga keystroke to reboot normally. But holding
for 5+ seconds will boot with the Alternate ROM. In a three ROM setup,
another 5+ second hold down of Ctrl-Amiga-Amiga boots to the *next
Alternate ROM. Otherwise, it goes back to the Main (default) ROM.

Thanks to Mustang AKA Skunkbomb and Ron Mascaro