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- From: ntaib@silver.ucs.indiana.edu (Iskandar Taib)
- Subject: Re: Replacing the DAC on your video card
- Message-ID: <C1FsHp.4pn@usenet.ucs.indiana.edu>
- Sender: news@usenet.ucs.indiana.edu (USENET News System)
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- Organization: Indiana University
- References: <93Jan20.031847.43680@acs.ucalgary.ca> <THEN.93Jan20112432@lk-hp-7.hut.fi>
- Distribution: inet
- Date: Tue, 26 Jan 1993 01:08:12 GMT
- Lines: 35
-
- In article <THEN.93Jan20112432@lk-hp-7.hut.fi> then@snakemail.hut.fi (Tomi H Engdahl) writes:
- >In article <93Jan20.031847.43680@acs.ucalgary.ca> akctai@acs.ucalgary.ca (Alan Kar-cheung Tai) writes:
- >
- >>I was wondering if anyone out there has dared to replace the DAC on
- >>their video card with the Sierra DAC chip. This is supposed to allow
- >>the card to output 16-bit color. The card I have now is a Trident 8900.
- >
- >If you have non-interlaced monitor, video BIOS at least version 3.01
- >and 8900C vide chip, no problems should occur.
- >
- >If you have interlaced monitor, you need tvgacrtc. It must be new enough that
- >it supports 32k/64k colour video modes, otherwise there may be difficulties in
- >getting them fit into the screen.
- >
- >If the old DAC chip is directly soldered to circuit board, there are
- >difficulties in removing the old DAC chip and installing new one. You have
- >to be experienced desoldering and soldering to do the job.
- >
- >There can be some problems with high-resolution (800x600) hicolor modes,
- >because it is possible that other hardware can't keep up with DAC. If
- >problems occurs, you have to lower the scan rate. One of my friends has
- >to use 45Hz refresh rate in 800x600 hicolor mode.
-
- I'd say you'd be better off getting one of the generic
- Tseng ET4000 based cards with hicolor - the Trident with
- hicolor should be comfortably slow...
-
-
-
-
- --
- -------------------------------------------------------------------------------
- Iskandar Taib | The only thing worse than Peach ala
- Internet: NTAIB@SILVER.UCS.INDIANA.EDU | Frog is Frog ala Peach
- Bitnet: NTAIB@IUBACS !
-