I need urgent help with my network design. I have put forward 2*WS-C3750E-24TD-E switches in the design. I have ordered it and now have found that it comes with 265W power supply. The problem is I have also ordered PWR-RPS2300 with 2*C3K-PWR-750WAC, thought of supplying back up power incase AC fails. Here is my question, is this switch with 265W PSU can be backed up with 750W PSU or in other way is 265w PSU compatible with 750w PSU.