DigiTimes' nebulous "industry sources" have told the site that Asus intends to outsource some motherboard and graphics card production to ECS. Asus already outsources production to Pegatron, which was spun off the motherboard giant in 2007. Foxconn and Quanta have reportedly been lending a hand in manufacturing Asus notebooks and Eee PCs, as well.
According to the DigiTimes piece, Asus is moving to expand outsourcing to reduce its dependence on Pegatron and boost profitability. Pegatron doesn't seem to be at capacity, though. The same story notes that the manufacturing company is offering to produce motherboards and graphics cards for Gigabyte, which just happens to be Asus' biggest rival.