My tablet needs 5v, 2A to charge via the micro usb but all I have is a
700ma walwart (which does not work) so I was thinking I could use my ATX
power supply. There are 2 rails on the ATX for 5v, one for 30a and one for
2a. Is there any reason I cannot use either rail? The tablet will only
draw the current it needs, right?