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Re: Trouble setting up CompactFlash as IDE on 386

Posted on 2020-06-24, 15:00

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Ok as always, teh simplest solution was the one that worked! FDISK /MBR? This fixed it. thanks so much! I also like https://archive.org/details/whatide Doing this myself soon for the first time on a 386 (I've done it on other systems) so I'm reading about any problems and solutions with interest. …

Re: Trouble setting up CompactFlash as IDE on 386

Posted on 2020-06-19, 13:41

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

FDISK /MBR? I'll try that! Not necesserily. You need to run IDEINFO.EXE on the CF-IDE adapter/card combination, possibly on another PC where the controller can read the geometry. Then and only then will you know how you manually have to set it up so that it works properly. Where do I get IDEINFO?

Trouble setting up CompactFlash as IDE on 386

Posted on 2020-06-18, 21:58

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

You guys are gonna hate me... yeah I have problems again :P I got a 512MB CompactFlash after advice given in this thread and I went to set it up but I ran into several problems. I had done this before but never on a machine this old. First of all there was the issue of geometry. I found a post here …

Re: 5.25" floppy drive reads but can't write?

Posted on 2020-06-17, 13:17

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Are the disks that work only on your C64 single-sided ? No, they were all 2SDD. Also I am using a 1571 and formatting full double sided. Yes ! DOS 7.1 (Win98) is a bit different for working with floppies than real DOS (5 or 6.x) or DOS 7.0 (Win95). It is a known problem for some of us.... https:// …

Re: 5.25" floppy drive reads but can't write?

Posted on 2020-06-16, 22:11

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

OK I am more confused than before. I did a lot more tests, and I managed to format a bunch of 360KB disks, but not all. Also the only 1.2MB disk I have, I couldn't format (same error, track 0 unreadable). I made a MS-DOS 6.22 boot disk which seemed more successful at formatting disks than the …

Re: 5.25" floppy drive reads but can't write?

Posted on 2020-06-16, 15:00

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

In both cases, I fixed it by opening the drive and gently cleaning the heads. I also moved the heads up and back on their track as well as lifting the top head while in operation. I don't know why this worked, but it did. Essentially, I had to 'play' with the drives until they worked again. I have …

Re: 5.25" floppy drive reads but can't write?

Posted on 2020-06-16, 04:33

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I'm gonna put it back in the 386 and see what happens. OK I didnt even get to this point yet. I found a 1.2MB disk around, and I tested it. SAME error. "cannot format track 0, disk unusable". So the drive refuses to write any disk. If I try in Windows 98, it says "there's no disk in drive or the …

Re: 5.25" floppy drive reads but can't write?

Posted on 2020-06-15, 20:21

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

darry wrote on 2020-06-15, 18:01: If the Gateway BIOS lets you set the right drive type, it should just work, AFAIK . Then again, by the 440BX era, 5 1/4 drive support was an afterthought, so maybe it could be a strange bug . I'm gonna put it back in the 386 and see what happens.

Re: IBM PCjr emulation preferably on old PC? And other related questions

Posted on 2020-06-15, 18:03

in PC Emulation

in PC Emulation

OK I went and changed DOSBox config to use 1000 cycles, which looked like about a good speed on Flight Simulators, but IBM PCjr-specific software will STILL not run, always exiting with various errors. I can't even run BASICA.COM to run IBM PCjr BASIC software. I'll have to look into the options …

Re: Help resurrecting a Gateway 386SX/25

Posted on 2020-06-15, 17:45

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Another way to maybe tell is (and that's AFTER you remove the shorted capacitor!) is to plug the backplane and then use the meter beep to look for connection between various points on the backplane and the PSU connector. With everything else removed and powered off, obviously. Now, there might be …

Re: 5.25" floppy drive reads but can't write?

Posted on 2020-06-15, 17:43

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

What model is the drive and can it write 1.2MB disks correctly ? I cannot tell because I have no 1.2MB disks. Can't remember the model right now. EDIT: the 1.2MB should be able to read 360KB disks it has written itself, but it is not the case 100% of the time. It probably depends on the drive . …

Re: IBM PCjr emulation preferably on old PC? And other related questions

Posted on 2020-06-15, 17:37

in PC Emulation

in PC Emulation

Jorpho wrote on 2020-06-15, 15:40: kikendo wrote on 2020-06-15, 04:34: I edited the .ini file of course. Of course, yes, but what did you edit? as I said already, I did NOT add a value to the "cycles" setting which is what you said I should be editing. I only told it to use 386_SLOW under CPUTYPE, …

Re: 5.25" floppy drive reads but can't write?

Posted on 2020-06-15, 04:37

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Which kind of drive do you have ? 1.2MB drive or 360KB drive ? 1.2MB drives often can read from 360KB disks but can't properly write to them. Seems like you guys probably hit the nail right in the head again. This is a 1.2MB drive. I am trying to write to a 360KB floppy. It read them just fine (I …

Re: IBM PCjr emulation preferably on old PC? And other related questions

Posted on 2020-06-15, 04:34

in PC Emulation

in PC Emulation

Well, how exactly did you tell it to do that? I edited the .ini file of course. But I didn't mess with the cycles because I don't know what I am doing with that. I feel like I've read about emulators for cartridge ROMs before. MAME (formerly MESS), maybe? Or https://bitbucket.org/hdk_2/5511emu/src/ …

5.25" floppy drive reads but can't write?

Posted on 2020-06-14, 23:59

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hello, yeah it's me again, the guy with the 386 :P I just realized that my 5.25 drive reads disks just fine, but writing to them causes a error and disks immediately get thrashed. LIke, they don't read the content anymore after I tried formatting, or copying a file to them. I never had a drive that …

Re: IBM PCjr emulation preferably on old PC? And other related questions

Posted on 2020-06-14, 23:52

in PC Emulation

in PC Emulation

I tested it with Dosbox on the old Pentium, and everything was too fast, unplayable or simply didn't work. Generally, there's really no point to using DOSBox on an old Pentium instead of on a modern PC, especially if you're working with disk images. Regardless of what kind of computer you're using, …

Re: IBM PCjr emulation preferably on old PC? And other related questions

Posted on 2020-06-12, 17:15

in PC Emulation

in PC Emulation

I had a couple of these Drive Destroyers in my pile, but I guess I was feeling lucky so I decided to try and read them anyway. Epic fail ensued. Maybe I sorta *was* lucky, since it only took a few passes with some 99% isopropynol to get the drive reading again, but they're best treated as you would …

Re: AT PSU worth it for AT computer?

Posted on 2020-06-11, 21:12

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

- they expect a "turn on" signal whereas AT PSU is either on or off, the button acting like a light switch. In other words, you can't hook up an ATX to a system that has a power button which creates a continuous connection (i.e. a button you can press in and stays in) The AT-ATX adapter I have …

AT PSU worth it for AT computer?

Posted on 2020-06-11, 20:00

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Sorry it's me again with questions related to my 386 restoration. I'll make it brief. The power supply in my unit is gone and I see an AT power supply for sale on eBay but it's rather expensive. https://www.ebay.com/itm/152431356038 Would it be OK to just use an ATX PSU? I currently am using one, …

Re: How to know which hard drive limit my BIOS has?

Posted on 2020-06-11, 19:48

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thank you all for the replies so far. Very educational. You see, I only entered the PC game back in the day at the Pentium level. I never had to mess with anything older. 99% for a 1991 386 computer the limit is the classic 1024cyl/16heads/63sectors=528MB. The rest 1% is even smaller . You can …

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