Has anyone noticed that the 5V rail on their M2-ATX is kind of low, or sags really easily even with a small load? My M2 is powering a low power Jetway J7F2WE2G motherboard, plus a USB hub, wifi dongle, bluetooth, and GPS. The system draws <50 watts, yet my 5V rail sags down to 4.75 volts.

Some peripherals hooked up to my USB hub start having problems at this low voltage, so Im wondering if the rails on the M2-ATX can be tweaked? Perhaps maybe swap out a resistor or something. I'd prefer to not have to power the USB hub separately from an external regulator if possible, since it's hard to source a cheap 5v switching regulator that can do 3 amps or more.

Ideas?