Re: 386 board dead?

Posted on Yesterday, 21:38

by

by Guld

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Based on what you're saying, sounds like it could be a cracked solder joint somewhere, i.e. when the board is cold it "works" but then after it warms/heats up it starts failing probably due to expansion of components. Yeah, after it wouldn't boot several times, I gently pushed on opposite corners …

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Re: Voodoo 3 3000 Texture Issue?

Posted on Yesterday, 20:42

by

by Guld

in Marvin \ Video

in Marvin \ Video

You can try the AmigaMerlin 2.9 driver, it's the best Yep, I've tried that one, no change unfortunately. The particular issue I see seems to not be a driver issue. I tried 3DMark2001 and noticed some very similar issues and even got an error about "CreateTexture failed: D3DERR_OUTOFVIDEOMEMORY", …

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Re: 386 board dead?

Posted on Yesterday, 20:25

by

by Guld

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Okay, so ran memtest86 again. Ran for maybe an hour or more...and I noticed it wasn't progressing. Rebooted and it's back to it's non responsive state. Diag board just shows dashes and no response at all. Keyboard does light up briefly on startup. I have not tried anything else yet, this is just …

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Re: Voodoo 3 3000 Texture Issue?

Posted on Yesterday, 12:54

by

by Guld

in Marvin \ Video

in Marvin \ Video

Ok, I stand corrected. I ran the video memory stress test on several of my video cards, including some that have never given me any trouble. And they all got the same error. I read the documents on the test program again and noticed that I had missed this: - Monitor standby function must be …

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Re: 386 board dead?

Posted on Yesterday, 01:26

by

by Guld

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The other photos have socket near the main chip populated with 74F373 while your MB doesn't have it. Is it important? I thought that as well when I first looked at the photo but I'm pretty sure that chip is there, you can see the legs. It appears that chip has a different top coat that makes it …

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Re: 386 board dead?

Posted on Yesterday, 01:24

by

by Guld

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Horun wrote on 2025-01-11, 22:42: Yes I would suspect bios chip gone bad as these micro 386 boards are near bullet proof otherwise (unless person does something dumb 😉) Never underestimate my abilities to do dumb things! 😁

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Re: 386 board dead?

Posted on Yesterday, 01:23

by

by Guld

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Basics to keep you occupied :) : 1. bit rot, I'd try to reflash the BIOS. 2. check if all legs of big ICs make contact 3. do the keboard LEDs light up when powered on? they should all light up briefly Which tools do you have to troubleshoot? Oscilloscope, soldering station, eeprom programmer...? So …

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386 board dead?

Posted on 2025-01-11, 18:15

by

by Guld

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I recently got a 386 DX-40 board with chip to play around with. Board linked here (Shuttle HOT-317R3) https://theretroweb.com/motherboards/s/shuttle-hot-317r3 When I first got it, I was able to boot up DOS and starting running some basic benchmarks. However, they would all fail shortly into the test …

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Re: Voodoo 3 3000 Texture Issue?

Posted on 2025-01-11, 18:02

by

by Guld

in Marvin \ Video

in Marvin \ Video

Thanks, hadn't gotten around to that test yet, but ran it on 2 different machines. P3 1GHz P3 450MHz (slot 1) I did this to make sure it wasn't a problem with the newer 1GHz board which I haven't used that much yet, whereas my P3 450 is quite stable. On both machines, I get the following error in …

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Voodoo 3 3000 Texture Issue?

Posted on 2025-01-10, 19:27

by

by Guld

in Marvin \ Video

in Marvin \ Video

I'm testing out a new (to me) Voodoo 3 3000 card to make sure it's all working correctly. System: Abit BX-133 RAID ( https://theretroweb.com/motherboards/s/abit-ab-bx133-raid P3 1GHz (133 MHz x 7.5) Voodoo 3 3000 (heatsink/fan installed by me) no other cards Have run memtest86 on the system at …

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Re: GD5428/5429 issues using video modes that use more than 1MB video memory

Posted on 2024-12-31, 01:04

by

by Guld

in Marvin \ Video

in Marvin \ Video

I have developed https://www.vogons.org/viewtopic.php?t=92512 to handle interlaced video modes. It displays them as progressivized. For example, on a Diamond SpeedSTAR 64 (CL-GD5434), Windows 3.1 in interlaced 1280x1024 256 colors mode captures like follows: although it should be noted that such …

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Re: GD5428/5429 issues using video modes that use more than 1MB video memory

Posted on 2024-12-30, 21:54

by

by Guld

in Marvin \ Video

in Marvin \ Video

Ah...thanks, I didn't know about CLmode, that helps because it displays some info about interlaced modes (which I had completely forgotten about). Neither 1280x1024x4 (16 color) or 1280x1024x8 (256 color) work. Neither does 1024x768...unless I set it to a monitor which will cause it to output non- …

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GD5428/5429 issues using video modes that use more than 1MB video memory

Posted on 2024-12-30, 20:09

by

by Guld

in Marvin \ Video

in Marvin \ Video

I'm using a Shuttle HOT-419 motherboard https://theretroweb.com/motherboards/s/shuttle-hot-419 , set up with a 486 DX4/100 MHz (33MHz bus speed). Two different video cards, both with 2 MB of memory on them, are having the same issues. Cirrus GD5428 Cirrus GD5429 I see similar issues with not getting …

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Re: Help Identifying Sentimental 5.25 Floppy

Posted on 2024-12-28, 19:42

by

by Guld

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Auzlin wrote on 2024-12-28, 18:23: Thanks for trying Guld! It is a real mystery. If I remember correctly, it was plug and play, no need to open the case. However, my memory could be flawed. It probably connects via the parallel port like the IBM ones do.

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Re: Help Identifying Sentimental 5.25 Floppy

Posted on 2024-12-28, 17:34

by

by Guld

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

IBM 4869 backpack floppy of some form. Can't see the power switch to see if it's the double density or high density version (color gives it away), and I forget if heroes of the lance came on high or double density. Probably high. There are different versions, much easier to find double density …

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Re: PS/2 Model 30 (8086) Power Supply Question

Posted on 2024-12-28, 01:21

by

by Guld

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Closed up the power supply and powered it on today and it worked! Fan turned on after a second or two, and voltages seemed okay. Haven't connected to the motherboard yet, but soon! One step closer!

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Re: PS/2 Model 30 (8086) Power Supply Question

Posted on 2024-12-27, 02:01

by

by Guld

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Don't worry about the low resistances. They are intentional. Look at the second photo you took: Below the smaller coil (the big one is the transformer), there are two big white boxes, which are power resistors. One of them is 15 ohms, the other one 27 ohms, which is exactly what you measure between …

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PS/2 Model 30 (8086) Power Supply Question

Posted on 2024-12-26, 17:25

by

by Guld

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I received an IBM PS/2 model 30 a while back (originally posted here https://www.vogons.org/viewtopic.php?t=102890 ). I've cleaned up the boards a bit but I have some concerns about the power supply before I try to plug it in and see if it works. I'm not all that familiar with power supplies and …

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Re: Another PS/2 Mouse ISA (ISA8) card adapter

Posted on 2024-12-05, 02:28

by

by Guld

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I'm still interested in building a batch for members if others want to collaborate. I can order the PCBs and solder the components, but I have no experience flashing chips. I'd be interested in two of them! I'm way behind on the posts here and don't have the time to look through all 15 pages to see …

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Re: Capacitor Identification on Asus P/I-XP6NP5 (Socket 8) motherboard

Posted on 2024-11-30, 00:56

by

by Guld

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

So far it seems to be running stably after cleaning the SIMM sockets and chips with Deoxit. I'm surprised that reseating them didn't work, but the Deoxit did. None of the SIMM modules have gold plated pins, so maybe it did clean up the connection. Combined total of 11.5 hours testing in memtest 86 …

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