Re: Tandy 4000 - Puff of smoke

Posted on 2018-05-03, 15:36

by

by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I'd go with 33uF poly caps. Something like these: https://www.digikey.ca/products/en/capacitors/aluminum-polymer-capacitors/69?k=polymer+capacitors&k=&pkeyword=polymer+capacitors&pv7=3&pv7=2&FV=ffe00045%2C1140050%2C1f140000%2Cmu33%C2%B5F%7C2049%2Cmu12.5V%7C2079%2Cmu12V%7C2079%2Cmu16V%7C2079&quantity …

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Re: Which PCI sound card is best for DOS/98SE games?

Posted on 2018-05-03, 04:59

by

by gdjacobs

in Marvin \ Sound

in Marvin \ Sound

t's a shame this board doesn't have a PC/PCI header or a YMF PCI card would be a no brainer. I'd probably pick up a few different cards. A Solo 1, a YMF724/744/754, a Vortex 2 card (if you find one for a good price), and an Audigy 2. Maybe also an ALS4000 as a dark horse contender. You'd be covered …

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Re: Bought these (retro) hardware today

Posted on 2018-05-03, 02:42

by

by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Cyrix200+ wrote: OPTi ISA sound: […] Show full quote OPTi ISA sound: I spy with my little eye an illegally cloned OPL3 chip and DAC.

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Re: Tandy 4000 - Puff of smoke

Posted on 2018-05-03, 02:38

by

by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Usually the recommended replacement for tantalums these days is solid polymer caps. It would be helpful if you can find any markings wrt series so replacement can be found with appropriate ESR and ripple handling. Also, caps with higher max voltage handling will be just fine.

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Re: Antec True Power 480

Posted on 2018-05-03, 02:25

by

by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

candle_86 wrote: yes but i need at least 32A on the 5V 🤣 There are models from Delta and Zippy that can deliver that. Also, there's a thread for this: The PSU Matchup Thread

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Re: Old Compaq motherboard - Super Socket 7

Posted on 2018-05-03, 02:18

by

by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

As any business will tell you, know your supply chain.

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Re: Which PCI sound card is best for DOS/98SE games?

Posted on 2018-05-03, 01:31

by

by gdjacobs

in Marvin \ Sound

in Marvin \ Sound

The moment you say DOS and PCI I think the best option is a good ESS Solo-1 card like the Terrated 128i. Everything else has crappy OPL3 emulation. The Yamaha cards have genuine OPL3 built in. They also have worse compatibility with DOS games on pretty much any PCI bus out there. The SOLO-1 just …

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Re: 3D Accelerated Games List (Proprietary APIs - No 3DFX/Direct3D)

Posted on 2018-05-03, 01:20

by

by gdjacobs

in Marvin \ Video

in Marvin \ Video

Perhaps you forget, it's already here! https://www.youtube.com/watch?v=ZmCEXbspWuI

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Re: Which PCI sound card is best for DOS/98SE games?

Posted on 2018-05-01, 17:42

by

by gdjacobs

in Marvin \ Sound

in Marvin \ Sound

My recommendation isn't always going to be a Vortex 2 card for DOS. 1) They're more expensive than some alternatives. 2) Inferior OPL3 implementation. 3) TSR is quite heavy.

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Re: Antec True Power 480

Posted on 2018-05-01, 17:17

by

by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Any issues beyond the caps?

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Re: Is this AT PSU usable and worth salvaging?

Posted on 2018-05-01, 17:10

by

by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Eh? What is missing if I may ask? Pretty much the only thing which looks okay on this supply is the ground point. Let me itemize the failure: One PTC for transient suppression isn't enough. Two plate capacitors for line filtration. This is insufficient and unsafe; what's installed doesn't form a …

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Re: Which PCI sound card is best for DOS/98SE games?

Posted on 2018-05-01, 16:09

by

by gdjacobs

in Marvin \ Sound

in Marvin \ Sound

cyclone3d wrote: What motherboard are you using? This is the primary concern. DOS PCI sound compatibility is heavily chipset dependent.

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Re: Ebay 7" VGA monitors

Posted on 2018-04-30, 23:08

by

by gdjacobs

in Marvin \ Video

in Marvin \ Video

badmojo wrote: The OP was clear, but you took the opportunity to show us your “smarts” anyway. You’ve also assumed that he has access to craigslist but hot tip, there are places in the world that don’t 😀 Or where Craigslist is a barren wasteland.

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Re: Is this AT PSU usable and worth salvaging?

Posted on 2018-04-30, 16:15

by

by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I bought a rather yellowed AT case lately, and while the front panel and interior has been hosed down in preparation for some retrobrighting, I thought I would also check the PSU out. It was the single most filthy PSU I've ever seen. So as much as I hate washing down any electronics, I had to hose …

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Re: Pentium 4 DOS machine - choice of two motherboards

Posted on 2018-04-30, 16:08

by

by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The 865 PE supports faster bus clocks than the 865 P. Both do not feature GMA video onboard.

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Re: Spam, spam, spam

Posted on 2018-04-30, 08:09

by

by gdjacobs

in Milliways

in Milliways

That one's actually kind of neat. Written by a Markov chain algorithm?

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Re: Via C3 Build Help Needed

Posted on 2018-04-30, 06:22

by

by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

DOS PCI sound isn't necessarily going to result in a fruitless search, but there isn't much information on what sound chips work well with SIS chipsets or which SIS chipsets retain compatibility for ISA emulation under DOS. Probably the two best chips when it comes to compatibility and sound …

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Re: QDOS / Q2DOS with 3Dfx OpenGL on DOSBox

Posted on 2018-04-30, 05:21

by

by gdjacobs

in DOSBox Games/Apps

in DOSBox Games/Apps

It's important to note that Daum has been abandoned by it's maintainer and is unlikely to see any further improvement whereas both DOSBox-X and ECE are maintained by people who are active on this forum. If you want to, you can probably PM them about how you can help squash this issue.

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Re: Bought these (retro) hardware today

Posted on 2018-04-29, 23:29

by

by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

PcChips is the distributor for (marketing branch of) Hsing Tech. Hsing Tech is the actual manufacturer. . Yup. PC Chips was known under many names (like Amptron and Matsonic), but ECS wasn't yet one of them. Reminds me of that line from "The Exorcist". Karras : So far, I'd say there seem to be …

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Re: Bought these (retro) hardware today

Posted on 2018-04-29, 15:37

by

by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

If you like Mechwarrior 2, PowerVR is definitely the way to experience it. However, I'm not sure what the price delta is between an M3D card CIB and the same card CIB, sealed.

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