Htpc 1080p choppy

i just bough a amd sempron 140 and 785g mobo and i unlocked the second core but my 1080p video is still choppy all the reviews i have read say that it should play this no problem i am using vlc but i have tried mpc and xbmc both still choppy as well when i run my desktop resol. at 1280x1024 its not so choppy but my cpu is at 60% usage does this seem right? thanks for any help in advance

Are you running it on the integrated gpu (HD 3200)? I'm curious to know your cpu usage while running the 1080p. Also, is the 60% with your desktop with the unlocked core? On more thing; is your cpu stable. Have you ran a torture test of any sort on it, such as prime95 since you unlocked to extra core?

Prime 95 is a reliable program that stresses the system to the point where faults will appear, and if they do, that means your system is unstable. Just prime95 reports an error, you may not notice it in everyday computing since you probably aren't stressing the cpu/ram as much as prime 95 does. However, it still means your system is unstable, and it could crash at a time when you least suspect it.

The OC might have been all that you needed, then, and since it's not going over 80%, if you're worried about heat, you could probably back it off a tad, too. I'm curious, though, which OS are you using?

That's interesting. I thought you might be running Vista or 7 (lots of system resources used in the background) and if that were the case that might explain why you were getting choppy frames on stock clocks. Since you're running xp, however, that doesn't make sense. If it's stable at those clocks with the extra core unlocked, I wouldn't worry about it. Good luck