What do you mean by "a bit low?" Most of the time it realy isn't enough to be conserned with, most of the time it has something to do with a cheap sub-standard PSU.
I personaly wouldn't bother if your voltages are within a reasonable limit
__________________
Signing out...
Yo-DUH_87
If it works, fix it until it's broke!
Then, after it's broke, add duct tape!
Affordable webhosting!