X541na 4g Ram N3350/n3450/n4200 Cpu Cpu Rev 2.1 Notebook Mainboard For Asus X541 X541n X541na Laptop Motherboard 100% Tested Ok - Laptop Motherboard - AliExpress
Review: Abit BW7 and Asus P4B i845 chipset Pentium 4 motherboards
Ruby Electronics:
P4R8L ASUS Intel P4 Socket 478 Motherboard Rev 1.03 (Refurbished)