Re: Is 3COM 3C905C-TXM compatible with Windows for Workgroups 3.11?

Posted on 2023-10-21, 02:35

by

by spacesaver

in Marvin \ Software

in Marvin \ Software

Some success. The NDIS 3 driver does work after I installed the card in my other Pentium 3 retro PC. But there is no speed improvement over NDIS2. For both, it's 3.7 MiB/s read (sequential) 250 KiB/s write (I'm using a SD card to IDE adapter) I'm guessing it's because on a 1.4 GHz Tualatin P3, …

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Re: Is 3COM 3C905C-TXM compatible with Windows for Workgroups 3.11?

Posted on 2023-10-16, 00:52

by

by spacesaver

in Marvin \ Software

in Marvin \ Software

Ugh, the speed is pretty bad. Only 670 KB/s for reading large files and 180 KB/s writing to it. I suspect it has to do with using the real mode driver. I know from reading about how games using DOS extenders work that any I/O using BIOS calls had to do expensive transitions from protected to real …

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Re: Is 3COM 3C905C-TXM compatible with Windows for Workgroups 3.11?

Posted on 2023-10-15, 08:44

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by spacesaver

in Marvin \ Software

in Marvin \ Software

Success! By using the NDIS 2, instead of NDIS 3 driver. Let me share my findings for whoever attempts this frustrating but rewarding quest in the future. 1st, I tried the packet driver together with mTCP in DOS. That worked, so at least the hardware is good. Besides freezing on the Windows startup …

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Re: Flickering lines in Terminator Skynet

Posted on 2023-10-11, 08:40

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by spacesaver

in Marvin \ Software

in Marvin \ Software

Some progress. I tried a different CPU and video card. I was using patch 1.01 from the beginning. (Pentium Overdrive 83MHz, Voodoo 3 PCI) - no flicker ! (486 DX4 100, Voodoo 3 PCI) - flicker So I think it's due to wrong motherboard jumpers. That's the only difference besides the CPU. I'm using the …

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Re: Is 3COM 3C905C-TXM compatible with Windows for Workgroups 3.11?

Posted on 2023-09-25, 06:00

by

by spacesaver

in Marvin \ Software

in Marvin \ Software

Tried it and it was detected 3Com adapter(s) and configuration detected: Interrupt level: 11 I/O Base: E800 Slot number: 10 Boot ROM Size: 64KB Performance optimized for: Normal Data Rate : 10/100 Mbps support Media Connector: Auto Select Ethernet address: 000476F700C0 I also tried disabling all …

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Is 3COM 3C905C-TXM compatible with Windows for Workgroups 3.11?

Posted on 2023-09-25, 00:13

by

by spacesaver

in Marvin \ Software

in Marvin \ Software

Has anyone gotten this NIC to work in WFW 3.11? https://www.vogons.org/download/file.php?mode=view&id=174464 Here's what I tried so far 1. Clearly it works in Windows 98, which I saw it automatically detected 2. During boot, it runs the PXE boot loader. 3. I installed the WFW311 drivers from 3c90x1. …

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Re: Flickering lines in Terminator Skynet

Posted on 2023-09-24, 12:44

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by spacesaver

in Marvin \ Software

in Marvin \ Software

The card seems very new, so didn't want to unsolder any capacitors to measure them. Instead, I soldered on additional caps on the back side (at least 22uF), but only for the electrolytic ones. Unfortunately didn't make a difference. Then I realized you said to check the SMD caps. I see about 10 near …

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Re: Unable to install AWE32 Windows 3.1 driver

Posted on 2023-09-24, 12:22

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by spacesaver

in Marvin \ Software

in Marvin \ Software

You're right. I did the full install and success! Thanks. I installed the update, awedw3up.exe, and it was also fine. The strange thing is the drivers installed are, "Creative Sound Blaster 16 Wave and MIDI" "Creative Sound Blaster 16 Auxiliary Audio" "Sound Blaster AWE32 MIDI Driver" "Voyetra / …

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Unable to install AWE32 Windows 3.1 driver

Posted on 2023-09-23, 12:36

by

by spacesaver

in Marvin \ Software

in Marvin \ Software

I have a CT3930, which has been working well in DOS. I tried to install the drivers for Win 3.11, 1st using the official Creative installer, s16dw3up.exe & awedw3up.exe. It installed, but no sound or see it loaded. Then tried installing it in Control Panel -> Drivers, but get this error https://www. …

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Flickering lines in Terminator Skynet

Posted on 2023-09-23, 12:24

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by spacesaver

in Marvin \ Software

in Marvin \ Software

This is very annoying and happens at 320x200. I cannot use 640x480 (loading UNIVBE allows 640x480, but freezes after drawing 1 frame). The game also crashes quite often. What could it be? I suspected something to do with the cache because I've seen similar artifacts when forgetting to write back …

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Re: Amikey-2 pinout

Posted on 2023-09-20, 21:26

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by spacesaver

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

It was only recognizing the delete key needed to get into the bios, not just any key. Does the replacement work ok? Yes, I said desoldering the chip (easy with hot air) and painstakingly soldering each of 40 pins (couldn't use hot air because the plastic socket would soften and make the pins slide …

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Re: Amikey-2 pinout

Posted on 2023-09-20, 05:13

by

by spacesaver

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

OK, that's fine if they're not reprogrammable. I want to know more why it stopped working. Do OTP and mask ROMs degrade over time or is it something else?

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Re: Amikey-2 pinout

Posted on 2023-09-20, 04:51

by

by spacesaver

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Anyone know if Amikey 2 (RAMIF-0016) is reprogrammable? I keep finding references saying it's programmable, but not clear if that's only factory programmed. I replaced a bad one recently. It was recognizing key presses to enter the BIOS and cancel the memory test, but stops responding after. Before …

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Re: Asus pvi-486sp3 bios reset

Posted on 2023-09-19, 09:45

by

by spacesaver

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

It was a bad keyboard controller! I took a gamble and ordered a DIP socket and Amikey 2, but it paid off. I wonder if the Amikey 2 is programmable. Then I might be able to reflash it with the image from the working chip.

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Re: Asus pvi-486sp3 bios reset

Posted on 2023-09-04, 22:19

by

by spacesaver

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Actually, I'm not sure if "load BIOS defaults" triggered it. It was working right after I did it. I attached an oscilloscope to the data and clock lines and see normal clock activity when keys are pressed until the end of the mem test. Then the clock line stays at 0 almost all the time. The clock …

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Re: Asus pvi-486sp3 bios reset

Posted on 2023-09-04, 09:25

by

by spacesaver

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

FPM. The keyboard was fine before until I did "load BIOS defaults"

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Re: Asus pvi-486sp3 bios reset

Posted on 2023-09-04, 07:47

by

by spacesaver

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I tried taking out the battery and shorting the battery posts. Then on the next boot, it says CMOS checksum mismatch, loading defaults, but I can't proceed because it's not responding to the keyboard and it seems it doesn't save the restored values until you press F1. Ugh.

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Re: Asus pvi-486sp3 bios reset

Posted on 2023-09-04, 07:10

by

by spacesaver

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I need to do the same. For some reason, I can get into the BIOS by pressing delete, but after that, it doesn't respond to keys any more. Same if you boot to DOS. I think it's because I did "load BIOS defaults" earlier, which isn't the same as "load setup defaults" I tried taking out the battery and …

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Re: Convert USB keyboard to PS/2 or AT?

Posted on 2023-08-19, 10:10

by

by spacesaver

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Fail ! How did I not find ps2pico. That's exactly what I need. So sekigon-gonnoc/Pico-PIO-USB uses up both of the PIO units, so you can't add a 3rd USB port. But it doesn't use all the state machines within each PIO, so maybe still possible. But you can already use the USB port used for programming/ …

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Re: Convert USB keyboard to PS/2 or AT?

Posted on 2023-08-19, 02:16

by

by spacesaver

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Fail ! My only experience with a 486 is with a IBM PS/1 2133-652, which had 2 PS/2 ports. So pardon my ignorance. Also, saved me a lot of wasted time :) I saw many PS/2 splitter cables for sale, so I thought PS/2 was shared, not point to point. I did have major doubts. pointed out where? I only …

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