CMIzapper  Technology for your Mac repair business

Buy here: We ship World Wide*

* We are on vacation from July 13th till July 28. You can email us during this period but our responsetime will be somewhat longer.

Only the easy products will ship during out vacation. Everything else will ship out the moment we are back at work.

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SPI Activity Monitor

The Chipmunk SPI Monitor is a small tool that makes the life of the repair technician a little bit easier.

The SPI Activity Monitor is a little board that plugs into the SPI connector of those Macs that have one (MacBook Air & MacBook Pro 'retina'). The SPI-Clock signal is divided by a 12-bit counter and the result is displayed on 12 LEDs. When repairing a motherboard it is nice to know if the EFI-ROM got read. With this tool it is much easier to know if the PCH is running for example.

This board plugs into the LPC+SPI connector (J6100) of the motherboard of a MacBook air or 'retina'. With 12 LEDs it shows the activity on the SPI bus.

This version has the Hirose-30 connector for boards: 820-3208, 820-3209, 820-3435, 820-3437, 820-3462, 820-3476, 820-3536, 820-3662, 820-3787.

If there is demand for it then we could make a similar product for the later boards with Horose-12 connector, please let us know.


The Chipmunk SPI Monitor costs 80 EURO including shipping world wide.

The version has a Hirose-30 pin connector to plug into the motherboard.