Intel® 865G/865GV Chipset Datasheet - download.intel.nl - Intel

Introduction1.4.7 Display InterfaceThe GMCH provides interfaces to a progressive scan analog monitor and two DVOs (multiplexedwith AGP) capable of driving an ADD card. The digital display channels are capable of driving avariety of DVO devices (e.g., TMDS, LVDS, and TV-Out).• The GMCH has an integrated 350 MHz RAMDAC that can directly drive a progressive scananalog monitor up to a resolution of 2048x1536 @ 75Hz.• The GMCH provides two multiplexed DVOs that are capable of driving a 165 MHz pixelclock. It is possible to combine the two multiplexed DVO ports to drive larger digital displays.The GMCH is compliant with DVI Specification 1.0. When combined with a DVI compliantexternal device and connector, the GMCH has a high-speed interface to a digital display(e.g., flat panel or digital CRT).1.5 Clock RatiosTable 2 lists the supported system memory clock ratios. AGP, CSA, and HI run at 66 MHzcommon clock and are asynchronous to the chipset core. There is no required skew or ratiobetween FSB/chipset core and 66 MHz system clocks.Table 2.System Memory Clock RatiosHost Clock DRAM Clock RatiosDRAM DataRateDRAM TypePeakBandwidth100 MHz 133 MHz 3/4 266 MT/s DDR-DRAM 2.1 GB/s133 MHz 133 MHz 1/1 266 MT/s DDR-DRAM 2.1 GB/s200 MHz 133 MHz 3/2 266 MT/s DDR-DRAM 2.1 GB/s133 MHz 166 MHz 4/5 333 MT/s DDR-DRAM 2.7 GB/s200 MHz 160 MHz 5/4 320 MT/s DDR-DRAM 2.6 GB/s200 MHz 200 MHz 1/1 400 MT/s DDR-DRAM 3.2 GB/s24 Intel ® 82865G/82865GV GMCH Datasheet