Long delayed followup:

I replaced the bad F3 polyfuse with a new fuse and my power woes are gone.

Having stability woes that seem polyfuse related. My tp2 to tp1 voltage is always lower than 4.7, from several power supplies, cords, etc. Thankful to find this post after wading though many "it must be your PSU" posts. I seem to have a quite a large voltage drop across the F3 polyfuse und...