Some manufacturers offer WOL w/o 3-pin cable. NIC gets power from PCI slot. Currently I know 3 companies: Intel, 3com and Linksys. But there are compatibility problems. My Asus A7V33 supports WOL via PCI, but it doesn't work w/ Linksys. That's why, if WOL is a must, then U need to invest in working NIC from Intel/3com