Re: Outputting 720x400@70Hz with the ATi R300 DVI output in DOS

Posted on 29 minutes ago

by

by cde

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I tried changing the preferred modeline to 1280x960 60Hz and machine will not post if that resolution is available in EDID . Next I will try setting 1024x768@70Hz as preferred resolution . If that works, it avoids need for EDID emulator and preserves 4:3 aspect ratio. Darry, I have hacked a HDMI …

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[HOWTO] Running DOS games natively with perfect 4:3 aspect ratio @ 70 Hz over DVI

Posted on 31 minutes ago

by

by cde

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

As noted by myself and others, feeding the VGA output from 320x200 games into a LCD most often leads to the doubling of horizontal pixels which is due to the real horizontal resolution of the 720x400 mode, 720 not being a multiple of 320, and most monitors will just sample the signal at every pixel, …

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Re: finding a working IDE DVD drive

Posted on 2020-06-05, 15:00

by

by cde

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

DeadnightWarrior wrote on 2020-06-03, 09:33: Any advice on brands / models to check? I was in the same situation as you and then found the NEC ND-4570A and NEC ND-4571A. There were manufactured at the beginning of 2006 and work fine with a variety of discs. All units that I bought turned out fine. …

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Re: ESS AudioDrive (ES1868) - a surprisingly good ISA sound card

Posted on 2020-06-02, 20:01

by

by cde

in Marvin \ Sound

in Marvin \ Sound

I found the Terratec Gold-16/96 (ES1868F) to have very reasonable output levels and almost non existent noise. It's slightly more expensive than a basic 1868F though. for the volume levels issue, make a batch file that runs ESSVOL with your initial mixer settings (Say RESETSND.BAT) and run it after …

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Re: Outputting 720x400@70Hz with the ATi R300 DVI output in DOS

Posted on 2020-06-02, 18:52

by

by cde

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Unfortunately I don't know enough about the VBIOS modes to help you further :( you could however port my assembly patch from the 9600 Pro to the 9700 in order to force ignoring the EDID modes. After a lot of testing with various LCDs and modes I came to the personal conclusion that for 320x240 the …

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Re: Outputting 720x400@70Hz with the ATi R300 DVI output in DOS

Posted on 2020-06-01, 07:17

by

by cde

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Yes, that would be surprising. I would suggest booting Linux and try setting your desired modeline with xrandr, while keeping an eye on X.org log messages.

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Re: Outputting 720x400@70Hz with the ATi R300 DVI output in DOS

Posted on 2020-05-31, 07:57

by

by cde

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I haven't looked into the details of how the BIOS chooses the modes from the EDID, sorry. I just disabled the whole portion of code that does this choice in order to force the use internal modelines. I suspect the pixel clock for 1600x1200@70 Hz could be higher than the card's acceptable range and …

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Re: Abit KT7A (KT133A/VIA686B), Athlon XP Mobile 2500+, ESS AudioDrive ES1868F, GeForce 6800 GT

Posted on 2020-05-30, 15:21

by

by cde

in Marvin \ System Specs

in Marvin \ System Specs

A SDRAM stick decided to give up and while doing so caused a shortcut in a small SOIC component below the RAM sockets, which gave smoke and the package is now bumped. Looking at it I read: HC26 FD8 (or FDS) 8958A. The FDS8959A is a "Dual N & P-Channel PowerTrench MOSFET" that can work at up to 30V …

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Re: Sound Blaster Issue - works but no sound

Posted on 2020-05-30, 10:42

by

by cde

in Marvin \ Sound

in Marvin \ Sound

Sorry to wake up an old thread but I had a similar problem with my SB16 (CT1740) and the solution could be useful to others. In order to get sound from audio CDs in DOS I bought an MPC-2 to JST PH 2.0. But I did not get any sound from the CD (which did produce sound, as tested with an ES1868F). As …

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Re: Good 4:3 LCD Monitor

Posted on 2020-05-29, 10:56

by

by cde

in Marvin \ Video

in Marvin \ Video

The result: 1600x1200 in 4x3 at 70Hz over DVI /HDMI under pure DOS and without apparent frameskip !!!! I realised I actually do notice frameskip when paying attention. That's really awesome! It reminds my of the BIOS hack I did for the 9600 Pro to force 70 Hz for 1280x1024, but your solution seems …

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Re: Good 4:3 LCD Monitor

Posted on 2020-05-27, 19:17

by

by cde

in Marvin \ Video

in Marvin \ Video

Real and available 4:3 monitors are small, is there some 24+ LCD with which can force 4:3 mode for everything and simply dont run as wide screen in any case? Or is there some magic box like DVI emulator to make such thing happen? There are some gaming monitors that do just that. I have a AOC …

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Re: Silicon Image 3114 BIOS flash

Posted on 2020-05-26, 20:22

by

by cde

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I haven't encountered your issue, got to flash the card under DOS with the standard method (it's a noname SI3114 bought on eBay). I remember it working fine under DOS/Win98/WinXP (driver slipstreaming required)/Linux. However I decided to drop it because of the large amount of low memory it required …

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Re: Welcome to the updated VOGONS

Posted on 2020-05-21, 08:52

by

by cde

in Milliways

in Milliways

cyclone3d wrote on 2020-05-17, 01:41: Can somebody point me to a signature that causes issues? I use mine for usefully links. This is what your signature looks like on a mobile phone, it takes a lot of screen estate: Filename Screenshot_20200521-104951.png File size 254.95 KiB Views 263 views

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Re: Working on a water cooled Athlon system.

Posted on 2020-05-19, 17:53

by

by cde

in Marvin \ System Specs

in Marvin \ System Specs

The ultra had dual plugs for extra power.The ultra was a over volted OC'd 6800gt with better ram timings so it pulled more power. I'm hoping the card will work with ultra bios, a common mod back in the day. I suppose as long as you have a spare PCI video card to reflash your GT 6800 in case the …

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Re: Working on a water cooled Athlon system.

Posted on 2020-05-19, 17:20

by

by cde

in Marvin \ System Specs

in Marvin \ System Specs

I lied. I did not buy a pump, fitting or tubing today. I was on eBay looking if I could find a fx5950 or 5900 ultra as I do every day and I found grossly over priced GeForce 6800GT V9999GT 256MB, the rarer model with the ultra heat sink and PCB with dual power plugs. I made a low ball offer to the …

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Re: Bought these (retro) hardware today

Posted on 2020-05-19, 16:22

by

by cde

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I have received my CT1750 SB16 with DSP 4.05. It was pricey but works extremely well, I have coupled it with a DreamBlaster X2 (the audio level from the DB seems a bit weak though). I expected this card to be quite noisy but it turns out the noise level are quite low and very acceptable. I have …

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Re: Does it worth to make a Windows98SE/DOS Pc today?

Posted on 2020-05-12, 09:39

by

by cde

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

At the risk of being slightly off-topic I would recommend above all getting a CRT. Even if you use it with eg. dosemu, a good CRT really improves the experience on several fronts: - 4:3 aspect ratio at all times - true VGA 70 Hz for 720x400 modes (especially 320x200), so no frame dropping - higher …

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Re: Bought these (retro) hardware today

Posted on 2020-05-04, 14:29

by

by cde

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

[*]Using FASTVID, it can reach 70+ FPS in Quake 1 under pure DOS while running in software mode at 640x480 As for me, on the GeForce 6800 GT, I get 140 FPS at 640x480@60 Hz and about 164 FPS at 640x400@70 Hz. I don't use FASTVID but instead MTRR LFB WC. This is using the timerefresh console command …

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Re: 19" 5:4 vs 20" 4:3 -- which LCD would you choose?

Posted on 2020-05-04, 13:49

by

by cde

in Marvin \ Video

in Marvin \ Video

I will try using the nvidia driver to output letterboxed display ... I currently only have one pc this is relevant to, as my dos PC obviously doesn't have nvidia drivers installed. I do have NOLF installed on a PC with a FX5950U, and it is a game without a 1280×1024 display option...meaning I am …

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Re: 19" 5:4 vs 20" 4:3 -- which LCD would you choose?

Posted on 2020-05-04, 10:56

by

by cde

in Marvin \ Video

in Marvin \ Video

This is Lands of Lore. I did not have text during the Intro, just speech, so I took this photo of the character screen which has some text. The aspect seems fine to me, which is not surprising as 320x200 is a 4:3 display resolution. Excellent, thanks. Indeed it looks like there is no distorsion ( …

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