Third Opinion: Time for a new battery (may want to upgrade to a extended life one if available, not that much more $$)...Mav.

This could explain why your IE seems to be slow, like caperjack said we need more info on the board. If it is the same mobo I don't see why it should be slower. If you changed to a different mobo...

Also, doubt its the adapter, but it is alot cheaper and easier if im wrong (I remember that happening once), so you may want to try it. There may be a computer store that will let you test that...

I would say you are good on the voltage (varies by location), im an electrician and regularly see 110v AC at 105-128v, depending on location, distance from panel, loads on the circuit, etc...however...

Sounds like heat or PSU. Check to see if the HS is attached securely and the fans are operating. You likely only need a case fan. Check to see if you fan runs of the PSU, if not theres your...

The dual PSUs are for redundancy, not for additional power. They are probably 1U type which is atypical for home PCs (generally used in servers), these are smaller, so you cannot use a normal PSU. ...

I had 1 on my old system, I was very impressed with its silence, but cooling wasn't fantastic, but exceptional 4 the money. I would buy it and if you swap it out save the fan...AC makes the best. ...