Any 478 chip will fit that board ...
Socket 478 and FSB800/DDR400 Motherboard
The M916 is one of the most advanced motherboards ever created by PCCHIPS. This full-featured plastform supports the latest Intel Pentium 4 HT CPU, up to 800MHz FSB, DDR 400 and features 6 USB2.0 ports for fast connection to the latest technology. With all these advance supports, the M916 will deliver incredible performance and value to your computer.
This verstaile mainboard has a Socket-478 supporting Intel Pentium 4/Hyper Threading Technology processors with Front-Side Bus (FSB) speeds up to 800 MHz. Hyper Threading Technology, designed to take advantage of the multitasking features in Windows XP, gives you the power to do more things at once.