Settings Question for A7N8X

Greetings all,

I just built a new system around the A7N8X DX, Rev. 1003.
With a 3000+ Barton and
Corsair XMS CL 2.0 512MB (slot 2-3).

Here are my settings:

CPU Ex. Frequency [166]
CPU Multiple Setting [MENU]
CPU Multiple [13.0x]
System Performance [User Defined]
CPU Interface [Aggressive]
Memory Frequency [By Spd]
Resulting Frequency 200 MHz.
Memory Timings [User Defined]
Active Precharge Delay [8]
RAS to CAS Delay [3]
RAS Precharge Delay [3]
CAS Latency [2T]

I don't want to sacrifice stability but yet I
want to get the most out of the hardware I bought.
Does this look about right? Should I make any
adjustments? It seems stable at the moment but time
will tell. It's running about 52C. Does that sound
right?

Thanks.