First time OC, looking for input

Just looking for input on possible improvements that could be done for the best performance from my machine right now. I don't know a whole lot about mem overclocking so for the most part my current setup is what i got my cpu to at under 55 at full load.

I have run Prime95 for around 12 hours and memtest86 x64 for 12 hours, all passed.

Looks good. Those Mushkin can probably run 5-5-5-12. Be sure to try less voltage. Mine work better at 2.0v than 2.1v

2 sticks or 4? Try 1T if you are using just 2 as it can increase bandwidth too

Yes there are only 2 sticks, i will try lowering the voltage some and changing over to 1T.

I have dropped the voltage down to 2.0 and changed my timings down to 5-5-5-12. I tried lowering the command rate to 1t but my computer would not even post.

Any input on why that would happen?

Edit: After some reading on the mushkin forums I have found out that AMD's AM2 chips do not support 1T timings at all.

http://www.download.orthy.de/reports/AM2-DDR2.gif a tabble from the AMD BIOS and kernel developer's guide.