Ah, just what I was worried about... none of the ASRock 785G boards have power phases fit to run a 125W processor, especially overclocked and running extra voltage. They're all 4+1 power phase, and they look to be of startlingly low quality. If your mosfets don't blow right away, chances are they'll degrade over time and either blow later and provide a power output to the CPU so unstable that it'll take your overclock with it and you'll have to down those clocks back to stock (speaking of which, to prevent any major disasters you really should do that now!)
If you don't have any money to swap that board, the best thing you could do is buy a ~$10 pack of mosfet heatsinks to keep within the safe zone on that board. Also, do not ever pass 1.475V. Ever.
1333 CL7 is about equal to 1600 CL9 anyway so not much to worry about. May be the C2 revision proecssor holding you back.