Search \ VOGONS

Re: Xi 8088 by Segey Kiselev

Posted on 2020-12-16, 22:55

maxtherabbit wrote on 2020-12-16, 21:41: Did bloody cactus, keenerb or smbaker ever get their xi 8088 stable? I'd like to build one but after reading this thread I'm hesitant I did not, but I didnt' spend much time on it after I built my micro8088.

Re: Delid fail on one of my Pentium 3 Tualatin

Posted on 2020-11-11, 15:38

by keenerb

in Marvin \ General Old Hardware

That should be an easy enough part to replace. I'd do it and see what happens. Just use a normal CPU though...

Re: VOGONS Driver Library

Posted on 2020-11-03, 23:53

by keenerb

in Marvin \ General Old Hardware

I made an ugly scan of the EMerson 4412 product manual. It's too large for attaching here, PM'ing the link to you directly. The built-in MSDOS version is 3.31. It has ROM drivers for XMS and EMS functionality.

Re: VOGONS Driver Library

Posted on 2020-10-30, 05:06

by keenerb

in Marvin \ General Old Hardware

I've dumped the ROMs for the Emerson 4412 286 system. It's a pretty neat box, and there's not a lot of information around on it. It's got a lot of nice features: 8mb ram max, built-in hardware EMS support, boots from rom, a very in-depth self diagnostic BIOS utility. The manual hints at some sort …

Re: Dumping KM23C1010 mask ROM

Posted on 2020-10-18, 23:01

by keenerb

in Marvin \ General Old Hardware

debs3759 wrote on 2020-10-18, 22:48: Could you post a copy of the image file here, for anyone else who may need it? I posted it in the Vogons Driver library thread.

Re: Dumping KM23C1010 mask ROM

Posted on 2020-10-18, 22:13

by keenerb

in Marvin \ General Old Hardware

Oh sorry, it's an Emerson 4412EC. A 286-12mhz with some nice built-in features.

Re: VOGONS Driver Library

Posted on 2020-10-18, 21:44

by keenerb

in Marvin \ General Old Hardware

I've dumped the ROMs for the Emerson 4412 286 system. It's a pretty neat box, and there's not a lot of information around on it. It's got a lot of nice features: 8mb ram max, built-in hardware EMS support, boots from rom, a very in-depth self diagnostic BIOS utility. The manual hints at some sort of …

Re: Dumping KM23C1010 mask ROM

Posted on 2020-10-18, 21:35

by keenerb

in Marvin \ General Old Hardware

Thanks, I was able to dump it as a 27C010 chip once I figured out how to disable chip id checking.

Dumping KM23C1010 mask ROM

Posted on 2020-10-18, 19:16

by keenerb

in Marvin \ General Old Hardware

Can't find a lot of info on this rom, and it's not in my minipro chip supported list. Any suggestions as to what I can use to read this chip? It's the ROM of a fairly rare system it seems, I'd like to archive it for posterity.

Re: Tandy Nano - 3 Voice Soundcard ISA - Lowprofile

Posted on 2020-08-13, 15:46

by keenerb

in Marvin \ Sound

I sent you a PM two weeks ago, no response..

Re: Hardware failure.

Posted on 2020-08-10, 18:12

by keenerb

in Marvin \ General Old Hardware

I recently had a failed RTC oscillator. Never saw one of those before, I'm not sure how to test that at all, was just blind luck that I was able to track it down.

Re: Powering old laptops and other stuff with USB-C PD powerbanks

Posted on 2020-07-22, 15:58

by keenerb

in Marvin \ General Old Hardware

I've been planning on doing this with my Tandy 1100FD. Glad to see it's working for you.

Re: K6-266 with single PCI slot; what should I put there?

Posted on 2020-07-21, 18:33

by keenerb

in Marvin \ General Old Hardware

I'll consider that a vote for the Voodoo2.

K6-266 with single PCI slot; what should I put there?

Posted on 2020-07-21, 17:35

by keenerb

in Marvin \ General Old Hardware

I've got a super nice and clean Compaq Presario 2254 system with a K6-266 processor. Seems like it will make a pretty sweet DOS and early Win95 gaming box. It has a single PCI expansion slot. What should I put there? I have an Nvidia 6200 PCI that supposedly supports Win95/98. I also have a couple …

Which memory manager offered the TSR unload/instant reboot feature?

Posted on 2020-07-10, 17:21

by keenerb

in Marvin \ General Old Hardware

I seem to remember one of the EMM386-style apps offered some dynamic TSR unloading and a "rapid" DOS restart of some sort. Does that ring a bell with anyone?

Re: Emulating MT-32 on an RPi2

Posted on 2020-07-06, 15:14

by keenerb

in MT-32 General

https://streamable.com/cnzpbh Playing a few sample MT32 midi files on my RPI4 2gb. If I understand htop's output it seems like it's using maybe 50% of one core for these particular midi files. I think that's plenty of leftover CPU for DOSBOX and whatever else you'd need. That's with Process all MIDI …

Re: Emulating MT-32 on an RPi2

Posted on 2020-07-05, 02:52

by keenerb

in MT-32 General

I have Munt running on a raspberry pi 4 2gb with full GUI and it seems to run fine, all the test MT-32 midi files I'v e played sound great. Will be running some Dosbox games through it soon.

Re: Are there any USB -> XT keyboard interface devices?

Posted on 2020-06-12, 12:39

by keenerb

in Marvin \ General Old Hardware

I have a feeling that will only work for the USB keyboards with native PS/2 support built in, not all keyboards support tohse passive USB - PS2 cables, will they? I think I'll pick one up just to see though.