Cases and power

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What are the dimensions of the board? LxDxH -same with daughter-board?

It’s got the length of a standard Mini-ITX board, but is more shallow.
The dimensions are 170mm x 80mm x 35 mm. (unknown if daughter-board adds height).

Regarding daughterboard height:
“Hard to say exactly. The top of the 68060 is roughly level with the top of the joystick connectors.
As long as there is room for a heatsink plus some airflow you should be fine.”

What is the spacing between the mounting-holes on the board? exactly the same as a Mini-ITX?

The spacing of the mounting holes differ, the Mini-ITX is square, and two sides are the same length as the FPGA-AR board.
So, the FPGA-AR board will fit inside any Mini-ITX case, just two of the screws will line up, but with the backpanel in place this should make it sturdy enough for most applications.
If you’re making a portable setup, you might want to make some extra mountingpoints in the case for peace of mind.


What is the minimum wattage of power supply I can use? -same with daughter-board? (I know it’s low, but how low can you go?)

Standard ATX power supplies are available from 90W and up.
Smaller ATX PSUs are available, going as low as 50W. These take “no” space and usually mounts directly in the 20-pin connector on the FPGA-ARs ATX-powerboard, and has an external power-brick, unless you want another board (ac-dc conv.) in your case .
Larger PSU-boards are also available if you want to mount it with screws inside the case.

The board is powered from a +5V power rail. 
The peak power consumption is:
FPGA Arcade alone : 700mA (3.5W)
FPGA Arcade + daughter-board w/060@106MHz : 2.2A (11W) (18.5W if USB is utilized).

Does the board generate any heat, should my case have a fan, or will there be enough with ventilation-holes? -same answer if I have a fan-less power supply inside the case? -same with daughter-board?

The basic setup will not need a fan, ventilation-holes allowing some airflow will do.
Running the 060 at over 100 MHz on the daughter-board makes it quite hot. A fan is necessary.
If you decrease clock frequency to 80-90 MHz it can run with passive cooling.

What size does the hole in the case need to be for the motherboards i/o back plate?

Standard ATX backplate size.
Nominal cutout size = 6.25″ (158.75mm) by 1.75″ (44.45mm). (From

Some notes on fitting the IO panel.

You will need to remove the locking bolts from the joystick ports first.
The two rightmost ones are outside the ATX area, so they cannot be fitted. I usually move these to the DVI connector.
(I’ve started to fit the bolts on the DVI connector as well for new boards, these also need to be removed first).
Depending on your case, it may be easier to fit the panel to the board with the four bolts first, otherwise be careful of the alignment of the ring on the SVHS connector  – it can cause the panel to bend.


Are there any pin-outs for LEDs?

-like Power, SD-activity etc.?

No pin-out for LEDs on the motherboard
But there is an IO patch panel where it is possible to add additional LEDs to replicate the on-board ones.

The optional ATX-powerboard has pin-outs:
*PWR BUTTON (power up/shut down button.)
*PWR OFF (can be connected to motherboard, lets the board shut itself down if needed.)
*FAN (3pin, x2) (up to 2 fans start with the board.)
*PWR LED (indicates power-state.)

What kind of keyboard is required?

Do I need one with “windows”-buttons?
Any buttons you can’t do without?

Currently PS/2 keyboard is the only option. 
For the Amiga-core, Windows keys are mapped as Amiga-keys. (Left + Right)
For all cores, F12 is used for menu button and F11 is currently used for resetting target.

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