While you're at it, update firmware to 20141219, its a critical update. Download is
here.
Ignore him! If it ain't broke, don't fix it!
The only thing you'd need to update with the Aug firmware is cgminer, not the firmware else you run the risk of bricking your rig, even worse, installing dodgy firmware (of which there are loads for the S3 variants)!
I am a representative of Bitmain. Absolutely upgrade to 12/19, it is the most stable of all S3 firmwares and fixes a critical bug.