You should do manual.
At first you'd need to tamper with the htt speed (hyper transport), bump it a bit and try to boot into Windows and run a stress test. Look for the ram ratios or ram speed and reduce them to the minimum to avoid having ram make the system crash too. (you can later try to oc ram a bit, but it's not a good idea on this platform...) Best thing you should do is try to maintain the stock ram speeds by reducing the ratio.
For example, if the stock ht is 200mhz you set it to 210mhz and then proceed to run a test like intel burn test, prime95 or maybe even cinebench.
Cinebench is quick and dirt, works good. If it passes the test, you can reboot and try a bit higher till it won't budge no more.
Then there are a few more things to do, but it will depend on your bios settings. If you have voltage adjustments you may be able to go further, if not you're most likely stuck there.
What kind of cooling does that thing have? A stock cooler won't take you very far btw.
A good read: