My raspberry pi didn’t supply enough current to the connected usb devices and I didn’t want a usb hub so something had to be done..
Got the idea from Larry_Adlards post (Sun Jun 17, 2012) to raspberrypi.org/forums/viewtopic.php?f=63&t=8591 but since my rev 3 board did not have polyfuses F1 and F2 (they were shorted) I had to also remove those shorts.
The 5v line on the pi usb port is now 5.04v while before the mod it was ~4,3V with the devices attached (below spec).