Intel Pentium 4 423 Socket Type Computer Processors (CPUs) for sale | eBay
Pentium 4 socket 423 system overview - YouTube
New MSI 845 Pro ver: 1 MS-6529 socket 423 ATX PC motherboard main system board - NOS S423 Pentium 4 P4 Willamette AGP 4x PCI USB - Classic Computer Shop