Can a powerboard slow your processor speed?

I've never posted on one of these forums, so excuse me if I give out too many details.

I recently changed the powerboard on my Acer 3050 Aspire laptop b/c the DC jack wasn't charging and I couldn't remove the old adapter to replace it. I used a slightly different model that's also compatible with my laptop (the DA0ZR1PB6F0 REV F instead of the REV D which came with my laptop). After installing this power adapter my computer started to run very sluggishly. Pretty much everything makes my CPU performance hit 100% and stay there. Pretty much every flash page I load crashes (youtube stutters like I'm loading it from 1997). When I idle my computer w/o any applications open, it'll still fluctuate from 40% to 70% and task manager will be the most intensive application taking only 8%.

Also, things to note are:
1) One of the 2 USB ports on the powerboard does not work. At first it would recognize something plugged in but then fail.
2) When my computer plays any sound I can hear the power turn on in my headphones (like the pop sound when you turn on a speaker system) before the sound plays.

Could the powerboard be doing all of this? Did I forget to plug something in when I reassembled my computer? Is the faulty USB port or powerboard sucking system resources?

 

Yes, the powerboard could be the source of both problems. It might not be putting out enough power or putting it out cleanly enough.

Double check all the connections. I'd get more info from Acer o see if the boards are interchangeable. Just because it fits in the socket doesn't mean it will actually work.