ASUS PVI-486AP4 Mainboard Specifications: - Processor (On Board Intel Socket 3, White Socket) . IntelDX4 - 100 MHz (P24C, DC 3.45V) . Intel i486 DX2/DX/SX, 487SX and 486 OverDrive Processor (P23T) - Coprocessor . Internal Coprocessor of Intel DX4, 486DX, 486DX2, 487SX and 486 OverDrive (P23T) - Chipset . Intel Green PC 82420EX PCIset (Intel Aries) - Cache Memory . 128KB/256KB/512KB for option - System Memory . Four 72-pin SIMM Sockets Support 1MB to 128MB . Use 1/2/4/8/16/32MB 72-pin DRAM Module with 70ns Fast Page Mode - On Board IDE . 32-bit PCI Local Bus IDE Controller - Expansion Slots . 3 32-bit PCI slots . 1 PCI/VL shared slot . 3 16-bit ISA slots - BIOS . Award 486 PCI BIOS and NCR PCI SCSI BIOS . 1M-bit Flash EPROM - Board Size . Half Baby AT PCB, 22cm x 26cm (8.7" x 10.3") * The specification is subject to change without notice. * The brand and product names are trademarks of their respective companies.