PLEASE READ: - These boards are New in the box, NEVER USED. The CR-2032 battery is NEWLY Replaced in July 2021... Both units were fully tested with vintage memory chips, CPU, ISA boards etc., Fully functional 100% perfect. (Joe D.)The IN845GV motherboard is design for use Intel Pentium 4 Processor in 478 Pin Package Processor with Hyper-Threading Technology support, the Intel 845GV Chipset delivers a high performance and professional desktop platform solution. Which utilize the Socket 478 design and the memory size expandable to 2.0GB.IN845GV motherboard use the Intel 845GV Chipset Supports 400/533MHz System Bus in data transfer rate, This motherboard provided a wide range of memory choices with 133MHz SDRAM clock frequency to support DDR333/266/200 SDRAM. This motherboard offers ULTRA ATA 100 to provide speedier HDD throughout that boosts overall system performance. With integrated 2D/3D Graphics Accelerator which supports 256 bit graphics core, and supports hardware motion compensation assist for software MPEG/DVD decode, makes this board a low cost alternative to add on video card. The IN845GV also provide an AGP connector for those who wish to use of a digital display equip with DVI , the IN845GV support digital channel via an AGP Digital Display card (ADD)The AGP connector support ADD card Only. The IN845GV motherboard including PCI LAN Controller chip support 10/100 Mb/sec Base transfe rate.Its also has integrated onboard an AC’97 2.1 CODEC support 3D surround positioning Audio, which isfully compatible with Sound Blaster Pro that gives you the best sound quality and compatibility. With USB control as well as capability of expanding to 6 USB2.0 function ports to meet faster data transfer, built-in hardware monitor function. This enable system monitor and protect your computer. These motherboards provided design in hardware to protect BIOS from virus crash BIOS data. These motherboards provides special function in BIOS Setup to setting CPU Host clock step by step increasing. 1-2 Specification Spec Description Design ∗ Micro ATX form factor 4 layers PCB size: 9.5”(W) x 9(D)(24.4x23.0cm)Chipset ∗ Intel 845GV Graphics Memory Controller Hub (GMCH)Chipset for IN845GV∗ Intel 82801DB I/O Controller Hub (ICH4) ChipsetCPU Socket(mPGA478B Socket)∗ Support Intel Pentium 4 478 Pin package utilizes Flip-Chip PinGrid Array (FC-PGA2) package processor∗ Support CPU Frequency 400MHz & 533MHz for IN845GV∗ Support 1.5G∼3.0G (IN845GV) 478 Pin Pentium 4 processor∗ Reserves support for future Intel Pentium 4 processors Memory Socket ∗ 184-pin DDR SDRAM module socket x2∗ Support Memory Type 64Mb to 512Mb Technology∗ Support Only 8x and 16x SDRAM device with 4 banks∗ Support DDR333/DDR266/DDR200 SDRAM (DDR333 at533MHz FSB Only)∗ Expandable to 2.0GBExpansion Slot &Headers∗ Supports AGP slot x1 (“ADD” Card ONLY)∗ 32-bit PCI slot x3∗ CNR slot x1Integrate IDE ∗ Two PCI IDE controllers support PCI Bus Mastering, ATAPIO/DMA and the ULTRA DMA 33/66/100 functions that deliver the data transfer rate up to 100 MB/sLAN On Board ∗ Realtek RTL8100BL PCI LAN Controller chip∗ Supports 10/100 Mb/sec data transfer rate Audio ∗ AC’97 Digital Audio controller integrated∗ AC’97 2.1 Audio CODEC on board∗ Sound Blaster Pro compliant∗ Audio driver and utility included BIOS ∗ Award 2MB Flash ROMMulti I/O ∗ PS/2 keyboard and PS/2 mouse connectors∗ Floppy disk drive connector x1∗ Parallel port x1, Serial port x2∗ USB 2.0 connector x2∗ USB 2.0 headers x2 (connecting cable option)∗ Audio connector Line-in, Line-out, MIC & Game Port.