kds@physics.phy.duke.edu (Kevin Stokes) (05/10/91)
Does anyone know where or if a 25Mhz 486 Motherboard with VGA on the motherboard exists? I don't want the access to video RAM slowed down by having to transfer data across that slow 6Mhz AT-style bus. Any information would be appreciated. In the demo 3DBENCH, a company called HM is mentioned in the doc, but it could be a British outfit. Thanks in advance. Kevin Stokes Duke University Dept. of Physics kds@phy.duke.edu Durham, N.C. 27706 -- Kevin Stokes Duke University Dept. of Physics kds@phy.duke.edu Durham, N.C. 27706
jwbirdsa@amc.com (James Birdsall) (05/11/91)
In article <22262@duke.cs.duke.edu> kds@physics.phy.duke.edu (Kevin Stokes) writes: > Does anyone know where or if a 25Mhz 486 Motherboard with VGA on the >motherboard exists? I don't want the access to video RAM slowed down >by having to transfer data across that slow 6Mhz AT-style bus. It's a nice idea, but the bus is the least of your problems when dealing with video RAM. Contention with the raster generator is, and it can add half a dozen wait states. Video RAM is much slower than system RAM even when both are attached to the same (slow) bus. Putting the video on the motherboard isn't going to gain you much -- even assuming that the motherboard designers haven't just attached the video system to the AT-style bus. -- James W. Birdsall WORK: jwbirdsa@amc.com {uunet,uw-coco}!amc-gw!jwbirdsa HOME: {uunet,uw-coco}!amc-gw!picarefy!jwbirdsa OTHER: 71261.1731@compuserve.com ================== Kitten: a small homicidal muffin on legs. ================== =========== "For it is the doom of men that they forget." -- Merlin ===========