How do I turn this thing on?

[thinkie]

Have a used planar, found on ebay. Plugged in a monitor, PS2 keyboard, put a temporary heat sink on the cpu, placed a fresh battery next to the battery contacts, and suddenly realized I had no idea how to turn it on without the switch.

Anyone have knowledge of how to momentarily short a couple of traces, or something else, that will tell the thing it's time to run?

08K3140, for an i Series.

Thanks for all the help found here over the years.