Too many system resources are being used to support the controller.

That's (IIRC) because the Highpoint cards are software RAID solutions with hardware acceleration. If you're worried about system resource usage, get a 3ware escalade card, which (I believe) are proper hardware RAID. They're not cheap, though.

I'm not 100% sure about this, though -- it's just what I found when looking for a card for my Linux box.