since my case is being modded, i've been using a new spare case, bought it a while ago (intended to build another computer, but never did),
im having some problems with it, all i have in is my 2 hd, vid,sound,ethernet, tv tuner and thats it,
1.asus probe is giving me a reading of 13.056v on my 12v rail, cause for concern?
2.also i just noticed my vidcard fan has stop turning, i pulled out the vid card, and you actually have to apply pressure to turn the fan, its like its seized up. the fan was working maybe 2 days ago
3. it running hot, around 47-50c (116-122f), case is open on both sides, and mb temp is 28 (82f), room temp low 20's, also have no fans in this case, thats why i left it open, and still high temps, with the case im modding, completely closed, my mb temps were maybe 1c higher then room temps,
4. windows is studdering

when i open up stuff, its really jerky on the screen, its not doing any extra work or anything, heat issue? maybe vid card overheating? or NB, i have no fan on my NB broke a long time ago, just the aluminum thing it slides into,
info,
the psu is a 300w
and im only running at 1400mhz,