ESC 848P ... runs on the i848 chipset, im guessing ECS but the chipset is enough: its an old, bad, slow chipset. The i865PE is a much better route and for not all that much more money
PU800CE-A ... its an ECS mobo ... nuff said (i.e., low performance, short lifetime, low reliability)... for soem of the prices you can get Abit, ASUS and MSI boards for, there shouldnt be a need to 'resort' to ECS