I'll try the 2 12800s sticks. I'll send a PM with my info. Thanks for looking!
Hey, I'd just take all 3 in case neither of the 12800 work, then maybe you can at least have 6GB with the exiting 2GB and the 10600 4GB.
Sometimes older stuff is finicky this way so I've learned to hedge bets when I can.
(Been trying to get 2x 4GB modules to work in my PX4-300D nas unit and keep hitting a dead end. Took me long enough to find a 2GB module that would work with the factory 2GB module.)