There is no difference at all, only the color of the PCB.
About 6 moths ago one moderator of the pcchips forum told me that PCCHIPS and ECS share the same assembly line.
Anyway <font color=red>stay away of them</font color=red>
well the thing is i am on a VERY limited budget so i want a new motherboard that takes both SDRAM and DDR, the motherboard i have right now is an ECS k7VMA that seems to work great but i need a new mb for ddr memory or newer cpu