Actually, most 3+1 actually are not very well ready for quad OC-ing, though I know that in the past this board was a popular choice for unlocking Phenom II x3s.
I would recommend not pushing high voltage, perhaps not even running as quad. There's a big risk involved. This is the techpowerup review
I mentioned involving the TA790GX VRMs. They can get easily hot. The particular MOSFET that failed was the third transistor/driver, it is common that an improperly sized driver (i.e. cheaper 3rd transistor as opposed to a proper driver chip) can result in VRM failure due to over-current, whether on Biostar or MSI or even on older Gigabyte designs. The tests in the review were done on an unlocked x2 550 at 3.7Ghz and just 1.41V. Even with MOS-C1 installed, the MOSFET hit max temperature of 72C. That's very hot and starting to approach unsafe levels. Of course, that was an average - the hottest particular ones hit over 85C. That's becoming very unsafe.
The low phase count may also hinder overclocking as it will not provide the most stable power to the CPU (with each FET having more load placed onto it there will be much more fluctuation than on a reliable VRM setup).
Seraphic if you have options to get a different motherboard, it may be a good idea to start looking.Edited by xd_1771 - 8/12/11 at 4:01pm