AP's not getting 30w on 4510

We aren’t getting much help from Cisco TAC so maybe one of y'all can point me in the right direction.

We have a 4510R+E with 8 - 4748UPOE blades, dual 8T SUP's and running Version 03.10.03.E IOS. Our issue is with power to the new 3802 AP's. Some ports we get 30w and others we only get 15.4w. There doesn't seem to be any pattern in the allocation and the overall power available should be more than enough to supply 30 AP's over 8 modules.

Any ideas why the switch isn’t supplying enough power to the AP's? What can we do to correct this?

Info:

Mod Ports Card Type Model

---+-----+--------------------------------------+------------------+-----------

1 48 10/100/1000BaseT UPOE E Series WS-X4748-UPOE+E

2 48 10/100/1000BaseT UPOE E Series WS-X4748-UPOE+E

3 48 10/100/1000BaseT UPOE E Series WS-X4748-UPOE+E

4 48 10/100/1000BaseT UPOE E Series WS-X4748-UPOE+E

5 8 Sup 8-E 10GE (SFP+), 1000BaseX (SFP) WS-X45-SUP8-E

6 8 Sup 8-E 10GE (SFP+), 1000BaseX (SFP) WS-X45-SUP8-E

7 48 10/100/1000BaseT UPOE E Series WS-X4748-UPOE+E

8 48 10/100/1000BaseT UPOE E Series WS-X4748-UPOE+E

9 48 10/100/1000BaseT UPOE E Series WS-X4748-UPOE+E

10 48 10/100/1000BaseT UPOE E Series WS-X4748-UPOE+E

EX:

Gi4/45 auto on 31.6 30.0 AIR-AP3802I-B-K9 4

Gi4/46 auto on 16.2 15.4 AIR-AP3802I-B-K9 4

Gi4/47 auto on 16.2 15.4 AIR-AP3802I-B-K9 4

Gi4/48 auto on 31.6 30.0 AIR-AP3802I-B-K9 4