I've had the M4A78 Plus for slightly over 5 months now. I've tried all the BIOS and driver updates for the motherboard, and can never get my ram to operate in dual channel, it's always indicated as unganged.
Right now I'm using BIOS 1206 (I'm about to try upgrading to 1214 but I'm really not hopeful that will change anything). All drivers are most current releases.
CPU is AMD Phenom II X2 550 Black Edition Callisto 3.1 GHz Socket AM3 80W Dual-Core Processor Model HDZ550WFGIBOX - Retail.
Memory is Corsair CM2X2048-6400C5, which IS listed in the motherboard manual under the Qualified Vendors List. Both sticks are in the first 2 gold slots.
Is there anything about these parts that anyone can see as incompatible with this motherboard? Nothing is overclocked at all, basically just running in default.
Anyone have any suggestions? This is on top of the constant "network cable unplugged" issue that keeps popping up.
Ganged or Unganged is not related to dual channel, it is a method of how memory is addressed to multiple applications/multicore processor's.
To verify your running in dual channel use CPU-Z free software, it will identify either single channel or dual channel.
Unganged has the broadest benefit, ganged is more specific.