No. While green is the most common color for printed circuit boards, any color, such as orange, blue, red, or purple can also be used.
green
All Intel chipsets and motherboards support crossfire.
Nearly all computers manufactured today have motherboards which use bios chips based on flash memory technology
Intel does not use refurbished motherboards in there pc workstations.
Adapter cards
Yes there are multiple controllers on all motherboards.
10 motherboards
If you mean "how many models of motherboards" - thousands. If you mean "how many pieces of motherboards" - probably billions.
motherboards do the same job but they are all different. MistroJoe
See the Related Link below for pictures of motherboards.
motherboards
Motherboards are pretty much manufactured the world around. Most for PC's come from China, Taiwan, Korea, India, Japan, Malaysia and the such. Motherboards for US weapon systems are made in the US. Many European countries make motherboards.