Watchdog error vs Power Scheme Selection

[Merle]

In exploring our issue with periodic system watchdog errors, I came across a baffling scenario. First I noticed that if the classmate was plugged in the watchdogs went away, so next I started exploring the setting of the "power options properties" (power options icon under control panel).

I found that I could set the "portable/laptop" scheme to identical settings as the "presentation" setting; however I would get ~20 watchdog errors in 5 minutes under the laptop scheme, but no errors under the presentation scheme. This is running the default code with no changes. It doesn't appear to make a difference what the settings with each scheme are, rather just that the 'portable/laptop' selection gives watchdog errors while under battery power. I haven't yet explored any of the other power option schemes.

Can any one duplicate this, or better yet, explain why this could be?

Merle Yoder
GRUNTS Team #3146