There are a number of ways to get this working, and it `should` work.
The systematic way to go about things, would be to take a single strip from each pair, put it in a slot on it`s own, boot into your OS and run the equiv. of CPU-z - goto the memory description and note what the timings are at what speeds you want to run the fsb at. Compare the two, and pick the slowest timings. (the mobo will always want to run at the slowest for a mix of memory types) Also make a note of the voltages required for each fsb speed. Whilst some are happy to stay at 1.8v for a number of fsb values, some will want to jump up to 2.1/2v. (this I really think is the problem here).
The other factor you have is occupying 4 slots of memory that`s not matched. No manufacturer will guarantee unmatched memory, even if all sticks are from them, will work together. Packs sold as quads they obviously will, but even 2xduals they won`t guarantee results. -- however in 90% of cases they can be coerced into working
4 slots occupied generally requires MCH voltage being increased for stability. Also you may need to go from 1T to 2T.
Simplest way, perhaps, maybe to stick 1 stick of either of the memories in. Boot into your bios and set the memory volts to 2.2 or 2.1, put the memory settings/speeds to SPD. Exit the bios, saving what you just changed, and shutdown. Stick all the mem strips in, and boot your pc with the intention of going to the OS. If the OS works fine - then great it works, and you can work on your timings from there. If you run CPU-z whilst your there, you can see what the SPD is now running as in terms of what the mobo and the memory agreed between themselves
You could then go into the bios and change from SPD to user defined settings for memory, putting in either what cpu-z reported, or really they should automatically change to that by themselves after changing to user defined.
Now your working, you can attempt changes to oc as you choose.
