Re: how to fix a wavetable addon to a sound card?

Posted on 2021-05-03, 20:49

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by kalm_traveler

in Marvin \ Sound

in Marvin \ Sound

received my DigiKey order today but found that I measured wrong, and have placed another order now that I'm pretty sure I have the correct measurements: the spacing is ~ 10mm and the holes are ~ 4mm so I'm trying these: https://www.digikey.com/en/products/detail/709621600/732-12592-ND/9488296?utm_ …

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Re: What retro activity did you get up to today?

Posted on 2021-04-29, 14:02

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by kalm_traveler

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Good to know. I have not run into any issues, yet, luckily. I also must have been lucky - I've converted and sold a bunch of ATX systems to AT (and just did my own 233MMX with a nice new ATX supply) but I have heard of this problem. I only use decent-and-up power supplies for these conversions and …

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Re: What retro activity did you get up to today?

Posted on 2021-04-28, 16:08

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by kalm_traveler

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Any decent modern PSU can do the job. Incidentally, my experience thus far has been the opposite. It is a known issue that pre-Pentium 4 era machines have their primary load on the +5v rail, rather than P4 and newer which shifted to almost entirely the +12v rail. As a result, modern PSUs have …

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Re: Ryzen snoozer build.

Posted on 2021-04-28, 05:04

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by kalm_traveler

in Milliways

in Milliways

That is amazing! I like the sleeper idea with PCs. In my case since I'm surrounded by too much modern useless stuff, I decided to go the opposite route and take retro guts but use it with as much modern tech as possible. So far that's resulted in the socket 370 rig in my sig - but it's in a modern …

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Re: What retro activity did you get up to today?

Posted on 2021-04-27, 16:09

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by kalm_traveler

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Building a new old stock vintage system, at no cost other than shipping, for a friend who's a member here and at VCF. He's looking forward to it. NOS In Win A500 ATX Computer Case NOS Supermicro P6DBE Dual Slot 1 Motherboard NOS Intel Pentium II 300MHz x2 512MB RAM (128MB x 4) 13GB IDE HDD Sound …

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Re: how to fix a wavetable addon to a sound card?

Posted on 2021-04-27, 16:04

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by kalm_traveler

in Marvin \ Sound

in Marvin \ Sound

Another option is one of the assorted packs from ebay. You get numerous sizes, and they wouldn't be an issue to trim if needed. ooh thank you - wish I would have seen this before placing an order with Digikey. Ah well, I needed to pick up an SMD resistor to repair a spare TUSL2-C motherboard and …

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Re: graphical artifacts only at low resolutions - dying card? bad caps?

Posted on 2021-04-27, 16:02

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by kalm_traveler

in Marvin \ Video

in Marvin \ Video

Note that Zork Nemesis isn't what would usually be considered "low resolution", it uses 640x480x16bpp. Most DOS games were 320x200 and practically all of them used only 8bpp. That's fair - I was mistaken on the conditions under which the graphical artifacts appear anyhow - seems it was more of a …

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Re: graphical artifacts only at low resolutions - dying card? bad caps?

Posted on 2021-04-27, 15:58

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by kalm_traveler

in Marvin \ Video

in Marvin \ Video

Just had a thought it's probably a long shot but is your PSU up to the task? Thanks for the reply - I *think* so, for the time being I'm using an old PSU from the dark ages (early 2000's) with 40A on the +5v rail, looks to be dropping to 4.87 to 4.90v under load, the other rails stay slightly above …

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Re: graphical artifacts only at low resolutions - dying card? bad caps?

Posted on 2021-04-27, 15:54

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by kalm_traveler

in Marvin \ Video

in Marvin \ Video

Try testing the card with VMT CE. https://m.majorgeeks.com/files/details/video_memory_stress_test.html There's an ISO in the archive that you need to burn to a CD and then boot from the CD. Edit: When using the program keep in mind it is primarily helpful in ruling out memory issues. It does …

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Re: graphical artifacts only at low resolutions - dying card? bad caps?

Posted on 2021-04-27, 01:48

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by kalm_traveler

in Marvin \ Video

in Marvin \ Video

pentiumspeed wrote on 2021-04-27, 00:40: Hi there, what is this game with these symbols on the stone disc? Cheers, Hi there, this is Zork Nemesis

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Re: graphical artifacts only at low resolutions - dying card? bad caps?

Posted on 2021-04-27, 01:48

by

by kalm_traveler

in Marvin \ Video

in Marvin \ Video

Which card is it? Have you tried different drives to rule out a software based issue? Also what resolution does the artifacting go away at? I know you said 1600x1200 is find but what other resolutions are fine too. Hi there! This is a Quadro4 980XGL, I have a few other cards I can toss in there to …

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Re: graphical artifacts only at low resolutions - dying card? bad caps?

Posted on 2021-04-26, 23:52

by

by kalm_traveler

in Marvin \ Video

in Marvin \ Video

adding that I tested with VGA and it does the same thing. The common thread here is that it has to be at low resolutions (like when running DOS games, older WIndows 9x games that run at say 640 x 480 and lower color modes). At native 1600 x 1200 and 32-bit color everything is crisp and without any …

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Re: how to fix a wavetable addon to a sound card?

Posted on 2021-04-26, 22:14

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by kalm_traveler

in Marvin \ Sound

in Marvin \ Sound

ok the holes look to be 3mm wide, and the distance from the top of one PCB to the bottom of the other is about 12mm. Time to find some plastic standoffs/clips! *EDIT* these look about perfect, going to order some and will report back: https://www.digikey.com/en/products/detail/701525000/732-12488-ND …

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graphical artifacts only at low resolutions - dying card? bad caps?

Posted on 2021-04-26, 18:31

by

by kalm_traveler

in Marvin \ Video

in Marvin \ Video

Hi guys, I am finally buttoning up my retro rig and have noticed that with particular combination of hardware, at low resolutions over DVI there are these funny graphical artifacts/glitches that move, change with objects on the screen changing, etc. I haven't tested VGA yet but was just curious if …

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Re: how to fix a wavetable addon to a sound card?

Posted on 2021-04-26, 18:00

by

by kalm_traveler

in Marvin \ Sound

in Marvin \ Sound

I have already tried many PCB Standoffs but wasn't able to find the ones with the perfect fit. Some are too short, some are to long and other are simply to thick. Back then the standoffs were delivered together with the daughterboard. If you find the perfect standoffs, let us know please :) Thank …

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how to fix a wavetable addon to a sound card?

Posted on 2021-04-26, 03:18

by

by kalm_traveler

in Marvin \ Sound

in Marvin \ Sound

Hey guys, I apologize for the doofy question but I googled a bit and can't find what hardware is used to 'fix' a wavetable card to a sound card. Specifically, I'm using a Roland SCB-55 wavetable card on an Aureal Vortex 2, and noticed immediately that the SCB is hanging quite a lot. Inspecting the …

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Modern PSUs with enough +5v amps for PIII rigs?

Posted on 2021-04-25, 16:16

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by kalm_traveler

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hey guys, I searched around a little bit to see if we already had a thread of recommended modern power supplies for these old platforms but didn't come up with anything. I understand that pre-Pentium 4 era, load was mainly on the +5v rail vs the shift to almost entirely on the +12v rail that we have …

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Re: Bought these (retro) hardware today

Posted on 2021-04-25, 15:42

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by kalm_traveler

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Went out yesterday to finish my first round of thrift hunting in over a year, ended up finding a mint Dell 2007fpb for $7 which is my new retro monitor! Also, a couple months ago picked up a Roland SCB-55 add-on card which finally arrived from eastern Europe. Got it installed on the Vortex 2 and now …

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Re: repairing Asus TUSL2-C, what type of resistor do I need to purchase?

Posted on 2021-04-25, 15:36

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by kalm_traveler

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

They should have loads. Are you looking under 'Chip Resistor - Surface Mount'? Just had a quick look, I can see about 300 options on Digikey. Biggest problem will probably be minimum order quantities. [Ah, found one: https://www.digikey.com/en/products/detail/panasonic-electronic-components/ERJ- …

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Re: repairing Asus TUSL2-C, what type of resistor do I need to purchase?

Posted on 2021-04-24, 22:06

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by kalm_traveler

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

221 is 220 ohms. First two digits are the most significant digits, the last digit is how many zeros. [Oh, and I'd guess they are 0805 package size, about 2mm long?] ahh ok thank you, I didn't know how to identify these super tiny SMD resistors :) yes about 2mm long, thank you so much. On Digikey, …

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