PCinsight has posted a review on the AK-74AC Motherboard from DFI.
The board remained rock stable up to the 140 MHz mark. In effect, our Duron 600MHz chip reached a pretty healthy 840MHz and ran stable at this speed. Not bad for overclock without multiplier adjustments.Read more
Although this board does not permit for more than a 0.1 volt increase over normal voltage, in most cases this should not be a limitation while overclocking. Naturally, further voltage adjustments could be applied by shorting the CPU bridges but this is just something that some people are simply afraid to do.