Recommending NVRAM to a guy who says he hasn't got a soldering iron seems a bit OTT. Granted it will solve the problem, but so would a remote battery pack and would be orders of magnitude easier to install than NVRAM.
If the OP has someone who can install it (and has done it before I'd say) then great. If he's buying it based on a belief that it is plug and play, then it's potentially dangerous advice.