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Re: CT2740 IDE Socket

Posted on 2018-01-31, 03:41

Blahhh!!! So as I may or may not have mentioned, I took out the SB card and put in my ESS AudioDrive card instead. That one has a bonafide IDE interface on it. Hooked up the cables and the computer refused to start. Not even a POST. No video, nothing. Thought I'd broken it. After a component swap …

Re: Does ISA video card need IRQ/DMA/PORT?

Posted on 2018-01-30, 21:11

I actually came across IRQ 2 and 9 and how they were used on the older display formats. They also had the curious property of working in tandem with each other, effectively prohibiting you from using either one. I don't understand why mind you but I wasn't going to use them anyway so if my ISA …

Re: AutoCAD R14 on Win3.X ?

Posted on 2018-01-30, 20:20

I have an AMD40DX and a ULSI at 40 but both are clocked at 33MHz because of an unanticipated hurdle with the crystal being 66MHz. I think I have the requirements to "run" R13 but it just may be unusable with anything more than a rectangle. I'm going to see if I can find upgraded ram to help out a …

AutoCAD R14 on Win3.X ?

Posted on 2018-01-30, 19:15

I read the wiki and supposedly R13 was the last 3.X compatible release. However R14 was a milestone in file format compatibility. Many future versions of AutoCAD allowed saving files in the R14 format, which means you could view present day work on an old rig. I would like to do so using my 386 with …

Re: Does ISA video card need IRQ/DMA/PORT?

Posted on 2018-01-30, 17:05

Of course I have no reason to doubt you. If it doesn't need it, it doesn't need it. But I am confused as to why other ISA devices which are "less important" (or at least lower bandwidth) such as lan cards, sound cards, modems, etc., being ISA, still need IRQ/DMA/PORT assignment. It must not be …

Does ISA video card need IRQ/DMA/PORT?

Posted on 2018-01-30, 15:06

I've been educating myself lately on how cards use resources and need IRQ/DMA/PORT assignments that don't conflict. While there is a wealth of info on this topic, surprisingly I have never seen video cards mentioned once. I would think out of all the things you could plug into a computer, the video …

Re: Found an obscure capture card

Posted on 2018-01-28, 20:51

That card is old, very old. It's from 1996 and wasn't a consumer product. https://web.archive.org/web/19970811051536/http://www.matrox.com:80/imgweb/meteorm.htm Unless you want to mess with the MIL C library, that thing is of no use. That makes sense since I pulled it from an old work machine. I …

Found an obscure capture card

Posted on 2018-01-28, 17:15

I came across a Canadian-built oddity - a Matrox Meteor_Pro 690-01, which is identified as a "frame grabber", which I assume means it's used for video capture. As yet I can't find the drivers for it but I'm still looking. It's got VGA, S-VIDEO and COMPOSITE on the back so a nice selection to pick …

Re: CT2740 IDE Socket

Posted on 2018-01-28, 17:00

Seems I've had a small victory (maybe). I was rummaging through my stuff and came across an ESS AudioDrive Card (1868 model, says FX-16 on the front). It HAS an IDE CD-ROM header on it! In fact, this was the original equipment in the computer before I swapped it out for a sound blaster. This means …

Re: CT2740 IDE Socket

Posted on 2018-01-26, 14:49

Ok. Let's hold on a minute here. 1. The CT2740 in your possession will not work with an IDE CD-ROM drive. Even attempting it can damage something because the pinouts do not match. Same cable, different interface. 2. You have a few options, most of which have been mentioned above. A. Use a newer …

Re: CT2740 IDE Socket

Posted on 2018-01-25, 15:28

This tends to be my philosophy with most things: If there's any doubt, try it. Thank you all for the research. The page I was able to find with the technical data led me to believe I needed a Panasonic proprietary drive but who knows. Maybe the chips inside my drive (Panasonic stuff is all made by …

Re: CT2740 IDE Socket

Posted on 2018-01-24, 17:09

I see. Well in the past this cd drive was running off a regular 16 bit ide controller (which kinda burnt out) so now I just have the scsi, which works wonderfully for the hard drive and floppies but... now I'm stuck with only 1 8bit slot left and I'm pretty sure the cd-rom uses the generic ide …

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