Well yeah, that valueram will not OC that far, but it is not crucial to stay at 1:1 like you said. You should still try to get to your max CPU even if you have to use dividers.
Here is my advice. Work on CPU and RAM seperately. Start with the CPU. Put it on the highest divider you have, probably 1:2 (RAM:FSB). This should take the RAM out of play. Now lower the LDT multi from 5 - 4. Now raise HTT in small increments at a time, testing stability at each point. Once unstable, increase vcore, repeat. Note you will need to lower the LDT multi to 3 after 250 HTT.
Now, after you find your max stable OC speed, you can now find out your max RAM OC. Put HTT back to 200 and put RAM back to 1:1. Now raise HTT in small increments again. Test stability and raise vdimm and loosen timings as necessary finding your max RAM OC. Now I would be surprised if your RAM goes over 220, so lowering the CPU multi will most likely not be necessary.
Anyways, thats about it. If its too confusing, read the sticky's again
Edit: Shoot forgot the last thing. Affter you have max CPU and RAM speed, you want to find a RAM divider that will put BOTH as close to their max as possible.