[F040] Re: Nova resolutions and AB040/nemesis

From: Michael Grove <seasonediron_at_ispchannel.com>
Date: Mon, 8 Jan 2001 8:22:34 -0800

I have a 2 and 4 meg card. Both will work at 1024*768 on my lowley 14 and 15" monitors. Look like 15 or 16 bit color is the max with my setup however. I can't seem to find the right settings to run 24 or 32 bit color at those resolutions.
>From: Oliver Skelton <skelton_at_fuchinobe.skk.slb.com>
>Date: Mon, 08 Jan 2001 23:02:31 +0900
>To: falcon040_at_ml.free.fr
>Subject: [F040] Re: Nova resolutions and AB040/nemesis
>Well I never got above 896x672 resolution but I did confirm my card is the
>2MB Graphics Pro Turbo.
>I also see it doesn't have the headers for the 2MB daughterboard.
>Rather than pay money to try and repair my big Idec 17" monitor I was
>wondering if I would be better off trying to upgrade the memory on the
>graphics card to get the full 4mB. (I found an internet sight offering the
>upgrade board for $70).
>Does anyone know if it is possible and practical to solder on the connector
>for the daughterboard? I seem to have the requisite rows of solder points.
>Oliver Skelton wrote:
>> Is there anyone here?
>> Since my last post I made some discoveries and thought of a new question.
>> I have also managed to get a 1024x768x256 colour resolution but not yet the
>> 24bit I seek.
>> I rediscovered that not all Mach64 cards for the Nova are equal. Some
>> cannot support the 24bit 1024x768 resolution, but I believe my card is the
>> 2MB VRAM model which should be capable of this. If I get time I will stick
>> it in the PC to see what the BIOS messages identified it as.
>> I also looked through past postings to ab040 list and saw at least one
>> person complain about the complexity of the VMG program used to generate
>> Nova resolutions. I now understand that program pretty well and maybe be
>> able to give helpful tips for anyone interested.
>> [One very useful tool was the Excel spreadsheet using the Generalised
>> Timing Formula available from ftp://ftp.vesa.org/pub/GTF/
>> You can input the clock rate, desired resolution and get suggested total
>> vertical and horizontal values together with suggested hsync and vsync
>> signals and resulting horizontal and vertical refresh rates). These values
>> seem to be a good starting point for building resolutions with VMG.PRG]
>> Now the question: Does the clock rate of the bus (Nemesis?, AB040?) affect
>> the graphics card? Can I increase the colour depth by accelerating the
>> graphics card in this way?
>> --
>> Regards,
>> Oliver
Received on ma. jan. 08 2001 - 21:10:51 CET

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