Specifications

2-16 Chapter 2: 7401-4xxx Product Overview
Graphics Subsystem
The7401‐45xxprocessorboardsareequippedwithaSMILynxSVGA
LCD/CRT3DMgraphicscontrollerwith8MBofintegrated
synchronousgraphicsDRAM.The7401‐46xxprocessorboardshavean
SMILynx3DM/3DM+graphicscontroller.
Theprocessorboardssupportlinearaddressingbycreatingaʺholeʺin
thememoryaddress
spaceatthe63MBboundary.Whenthesystemis
configuredfor64MBandlinearaddressingisenabled,thelast1MBof
systemmemoryisunusable;therefore,theboardwillreportthattotal
availablesystemmemoryis63MB.
Becauseaholeinmemorycreatesanon‐contiguous
addressspace,
enablinglinearaddressingwhentotalsystemDRAMisgreaterthan64
MBisnotrecommended.Videolinearaddressingisenabledthrough
PCSetupundertheIntegratedPeripheralsmenu.
TheprocessoralsosupportsVESAstandardssuchastheVESADPMS
protocoltoplaceaDPMScompliantmonitorintopowersavings

modes.
Resolutions Supported
Resolution Colors Max Vfreq
800x600x8bpp 256 85Hz
800x600x16bpp 64k 85Hz
800x600x24bpp 16M 85 Hz
Colors Supported
Resolution 256 Colors
(8-Bit)
65,000 Colors
(16-Bit)
16.7 M Colors
(24-Bit)
800x600 512k 1MB 2MB