Now that the P4 is on the loose, we should see gads of new Intel-based motherboards (not to mention those basaed on the VIA chipset). AOpen let us know yesterday that it is the first to come out with boards based on the Pentium 4 845 chipset. The MX4BS and the AX4BS both have a black PCB for the fashion-conscious, come with Socket 478 and Intel 845 chipset designs, and use PC-133 SDRAM memory. Both boards come with one AGP slot, one CNR slot, support for four USB ports (two front/two rear), two IDE ATA33/66/100 controllers, an AC97 audio interface, and LAN on-board. The MX4BS comes with three PCI slots and a uATX form factor (244mm x 244mm), while the AX4BS comes with five PCI slots and an ATX form factor (305mm x 220mm). The MX4BS has an estimated street price of $139 USD and the AX4BS is priced at $149 USD. Both support ACPI 1.0 and APM 1.2 specs, come bundled with Norton Anti-Virus 2001 software, and include AOpen's standard three-year warranty.