Re: How to identify this 486 motherboard techmedia UMC um8498F

Posted on 2022-06-03, 14:58

by

by epictronics

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Are you using the onboard graphics? Have you tried to see if it behaves differently with other graphics cards? If the problem disappears with other graphics cards, I would swap the onboard VRAM chips next.

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Re: How to identify this 486 motherboard techmedia UMC um8498F

Posted on 2022-05-31, 22:54

by

by epictronics

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Here's the bodge I had to do on one of these boards: IMG_20220530_082516586.jpg GD Looking att this picture and some of the other boards I realize what a lucky board I got in the second video. Although the board I repaired for a friend in the first video needed many bodge wires. These VARTA …

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Re: How to identify this 486 motherboard techmedia UMC um8498F

Posted on 2022-05-30, 16:48

by

by epictronics

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

My apologies to tabmode - the forum won't allow me to PM or even reply to a PM that's directed to me..... epictronics: The ebay seller these boards came from also had some tower cases that I bought several of. It appeared to me that these boards had been pulled from these cases and a Pentium MMX …

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Re: How to identify this 486 motherboard techmedia UMC um8498F

Posted on 2022-05-29, 23:57

by

by epictronics

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

tabmode on this forum kindly donated one of these boards to the channel. Thank you : ) The board I got only had minor cosmetic damage to some traces and all the traces are working. I managed to get it running with a DX4ODPR thanks to you guys. Attached are the settings I used. (the board hangs with …

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Re: Daemon tools for DOS?

Posted on 2022-05-27, 22:26

by

by epictronics

in DOS

in DOS

Thanks : ) I'll give it a try

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Daemon tools for DOS?

Posted on 2022-05-27, 22:15

by

by epictronics

in DOS

in DOS

Hi all, Is there an equivalent of Daemon tools for DOS that would work with older games from around 1995 and older? I have a few machines with original double speed drives but they are too slow to play some games : ) Thanks

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Re: Remember The 8-Bit Guy's "Found at Computer Reset" Executive Workstation? I got one on the bench :)

Posted on 2022-04-30, 22:20

by

by epictronics

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The problem with unobtanium chips is that after he got that unit fixed and working those borrowed chips are going back to where they came from. David at the IBM Museum channel has kindly enough put aside a spare board for me. So, all systems involved will be fixed and fully working in a near future …

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Re: Remember The 8-Bit Guy's "Found at Computer Reset" Executive Workstation? I got one on the bench :)

Posted on 2022-04-30, 22:12

by

by epictronics

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I sat and watched the entirety of your video the other day, I gotta say well done. Using a hot air rework station to replace dead IBM custom chips is going so far above where anyone else would just give up. Congrats on getting that rare IBM system working completely. My only actual complaint with …

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Re: How do I split a large file in DOS?

Posted on 2022-04-29, 12:16

by

by epictronics

in DOS

in DOS

STX wrote on 2022-04-29, 11:14: Chunk Older utilities Nice old school software site, thanks

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Re: How do I split a large file in DOS?

Posted on 2022-04-29, 12:08

by

by epictronics

in DOS

in DOS

weedeewee wrote on 2022-04-29, 10:29: your filenames are PCV10__A.00x in the dirlisting your filenames are PCV10_A.00x in the copy command 😒 Solved! Well spotted : ) Thanks

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Re: How do I split a large file in DOS?

Posted on 2022-04-29, 10:23

by

by epictronics

in DOS

in DOS

Thanks, but no luck yet RAR 3.93 don't seem to run under DOS 3.30. It just produces some weird characters when I try to run it. I split my file in 3pcs in WinSplit 1.0 and used the /b to merge but got "0 files copied" I'll try PKzip next, thanks

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Re: How do I split a large file in DOS?

Posted on 2022-04-29, 08:09

by

by epictronics

in DOS

in DOS

Thanks, RAR 3.93?

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How do I split a large file in DOS?

Posted on 2022-04-29, 08:02

by

by epictronics

in DOS

in DOS

Hi all, I need to split a large file in two pieces to get it on Double Density disks. I used an app back in the day called WinSplit 1.0 that still works nicely. But my receiving system is DOS only and wont run WinSplit. Is there an equivalent out there that would work in DOS 3.30? Thanks

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Re: Remember The 8-Bit Guy's "Found at Computer Reset" Executive Workstation? I got one on the bench :)

Posted on 2022-04-29, 06:42

by

by epictronics

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

bofh.fromhell wrote on 2022-04-28, 23:57: Lovely channel. Nice combination of repairing and tweaking. Keep em detailed and keep em long =) Thanks : ) Next video is going to be short, fun and simple. But I sure have some long and detailed projects lined up too.

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Re: Remember The 8-Bit Guy's "Found at Computer Reset" Executive Workstation? I got one on the bench :)

Posted on 2022-04-29, 06:38

by

by epictronics

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

SteveC wrote on 2022-04-28, 21:46: Enjoyed that video! Subscribed and now working through the PS/1 play list 😀 Thanks : ) I eventually ran out of idea's for the PS/1. Let me know if you have suggestions for some more fun to do with the system.

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Re: Remember The 8-Bit Guy's "Found at Computer Reset" Executive Workstation? I got one on the bench :)

Posted on 2022-04-27, 10:39

by

by epictronics

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Bondi wrote on 2022-04-27, 10:33: Really enjoyed the video. Thanks for making it! Thanks : ) Glad you enjoyed it. This was my most enjoyable project so far

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Re: Remember The 8-Bit Guy's "Found at Computer Reset" Executive Workstation? I got one on the bench :)

Posted on 2022-04-26, 22:01

by

by epictronics

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

vetz wrote on 2022-04-26, 21:42: YouTube algorithm worked for me as well and I saw your video yesterday. Really nicely done! I also subscribed and watched many of your previous videos Thanks : ) Glad the algorithm worked. I have got some really weird suggestions from Yt lately.

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Re: Remember The 8-Bit Guy's "Found at Computer Reset" Executive Workstation? I got one on the bench :)

Posted on 2022-04-26, 21:13

by

by epictronics

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

GigAHerZ wrote on 2022-04-26, 20:11: I stumbled on your video as well yesterday and it was an amazing video to watch. Thank you for the great work! I absolutely loved it! (No hacks, real investigation and real fixing, etc.) Thank you : )

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Re: Remember The 8-Bit Guy's "Found at Computer Reset" Executive Workstation? I got one on the bench :)

Posted on 2022-04-26, 21:12

by

by epictronics

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

doogie wrote on 2022-04-26, 19:55: Awesome video! Love that you went the distance and got this very unique machine repaired and ready to run. Well done sir! Thanks : )

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Re: Remember The 8-Bit Guy's "Found at Computer Reset" Executive Workstation? I got one on the bench :)

Posted on 2022-04-26, 18:54

by

by epictronics

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I stumbled upon that video yesterday, very nice repair! And no paperclips in sight :stuck_out_tongue: You have some good stuff on your channel, will there be new episodes in the Commodore PC10 repair saga? Thank you : ) Yes, I have ordered and received the first batch of components and all the …

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