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Conference noted::ibmpc-95

Title:	IBM PCs, clones, DOS, etc.
Notice:	Intro in 1-11, Windows stuff in NOTED::MSWINDOWS please
Moderator:	TARKIN::LINND

Created:	Mon Jan 02 1995
Last Modified:	Fri Jun 06 1997
Last Successful Update:	Fri Jun 06 1997
Number of topics:	3023
Total number of notes:	28404

2895.0. "DECpc 433 and replacement Cirrus video card " by VYGER::KIRKPATRICKI (IAN KIRKPATRICK@AYO) Tue Jan 28 1997 10:59

    I've installed a Cirrus Logic CL-GD5429 Video card in a DECpc 433
    (Olivetti version) with a VRC15-KA monitor running under Windows 95.
    
    I configure via Control Panel/Display/Setup/Change Display
    I select under Adapter Type, Cirrus Logic then Cirrus Logic 5429 and
    then the drivers are loaded from the Windows 95 CD-ROM.   
    
    The Windows setup shows me all the options I would expect - 600x480,
    800x600, 1024x768 at 16 or 256 colours or 64K, etc.
    The monitor setup is SVGA 1024 x 768.
    
    I setup as 600x480 with 16colours - OK.
               800X600 with 16colours - screen is diagonal colours
              1024x768 with 16colours - no picture
    Any option at 256 colours behaves as 1024x768 16 colour setup.

    The video card is OK, and I think the problem is conflict - original 
    video card (intergrated on motherboard) and the new card. I think
    that the old card is NOT disabled, but I have been unable to obtain 
    any meaningful technical documentation for this machine. 

    Is there jumper(s) on the motherboard I need to change to disable the
    original video card.

    This is reaching "phone the samaritans" level. Can anyone advise.
    
    Ian Kirkpatrrick.

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2895.1 NETRIX::"[email protected]" Mark Harris Tue Jan 28 1997 14:05 14

T.R	Title	User	Personal Name	Date	Lines
2895.1		NETRIX::"[email protected]"	Mark Harris	`Tue Jan 28 1997 14:05`	14
	You say 640x480x16 is "OK" what exactly do you mean by OK? If you can boot in Win95 at that resolution fine, then while Win95 is running select Control Panel/System/Device Manager and look at which video card(s) it things it's seeing. There probably IS a jumper to disable on-board video. Your 15" monitor just might not be able to handle the REFRESH rate and scanning freq of the new card in higher res modes. Some video drivers actually allow you to select the refresh rate under Win95. Perhaps you can do this? Mark [Posted by WWW Notes gateway]

You say 640x480x16 is "OK" what exactly do you mean by OK? If you can
boot in Win95 at that resolution fine, then while Win95 is running
select Control Panel/System/Device Manager and look at which video
card(s) it things it's seeing.

There probably IS a jumper to disable on-board video.

Your 15" monitor just might not be able to handle the REFRESH rate
and scanning freq of the new card in higher res modes. Some video
drivers actually allow you to select the refresh rate under Win95.
Perhaps you can do this?

Mark
[Posted by WWW Notes gateway]