However regards to the B744, yes as Rainbow said the AC pumps on systems 2 and 3 are options. If you look at MAS B744's (basic configuration) they have 4 ADP's across the ship. Took me by surprise first time I saw it as I had done the BA differences course from the classic.
If by MAS you mean Malaysia Airlines, their B744 have ACMP as demand pumps in sys 2 and 3. Just went out and tryed it. APU off, 2 and 3 pressurise the hyds, so the AMM must be right.