Re: Any recommendations for a midi Selector, switch?

Posted on Yesterday, 21:11

by

by dionb

in Marvin \ Sound

in Marvin \ Sound

Some comments: A couple of options: - Roland A-880 8 in, 8 out. Primitive, but does the job excellently. Unfortunately rare/expensive outside of Japan Get a Japanese one and do the 5 Volt wall wart conversion. - Edirol UM880. 8x8 instead of UM550's 5x5. Great, but usually VERY expensive. Great …

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Re: Any recommendations for a midi Selector, switch?

Posted on Yesterday, 08:23

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by dionb

in Marvin \ Sound

in Marvin \ Sound

In my case at least, it's not the outputs but the inputs that necessitates something more. At the output end I feed MIDI to an MT-32, SC-55ST, MU50 and a Roland piano for good measure (but that's just a gimmick so could drop if needed). That could be done with a MIDI chain. However I have multiple …

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Re: Any recommendations for a midi Selector, switch?

Posted on 2020-08-11, 21:30

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by dionb

in Marvin \ Sound

in Marvin \ Sound

Thank you for your reply cyclone3d. I agree, it seems that the 550 would be the best choice. Haven't had much luck finding a 550 here in Sweden for sale though, so the simpler choice would be the Kenton and the UM-one mk2 for now perhaps. There are some 550 up for sale from Japan, but one of them …

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Re: Pentium MMX with refurbished MB will only turn on sometimes?

Posted on 2020-08-10, 22:41

by

by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

[...] In my opinion those CPUs are rather tolerant to wrong voltages but that may change over time as the hardware ages. P55C is possibly the most over-engineered and tolerant CPU ever made. At work some ancient teletext-related system died after almost 20 years solid service. Turned out to be a …

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Re: Pentium MMX with refurbished MB will only turn on sometimes?

Posted on 2020-08-10, 21:53

by

by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

[...] My biggest hunch is that the CPU jumpers seem to not be configured correctly, but I didn't question it since the old one ran like this and this one also seems to sometimes run like this, and I just don't know any better. Here is what I've been able to gather about that: Here's the manual: …

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Re: AT case suggestions

Posted on 2020-08-10, 21:38

by

by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Not just in the early days. Pretty much any babyAT board will fit in pretty much any ATX case. All you need is the AT keyboard plate. All you lose is the topmost expansion slot (#8) if used on the AT board. I have a set of motherboard trays from AOpen bigtower cases that I use for most of my builds. …

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Re: What do the CPU selection jumpers do exactly?

Posted on 2020-08-10, 21:34

by

by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Yep, WB vs WT, what A20 is doing, multiplier and voltage settings. It's incredibly frustrating how almost no manuals actually tell you what is going on, even when they have settings for (at the time of writing) not yet available CPUs that turned out to require different settings when actually …

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Re: Cyrix Screamer Pro P200+

Posted on 2020-08-09, 21:18

by

by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

VLSI Lynx chipset - the first So7 chipset officially supporting 75MHz. This is quite a system!

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Re: 3D games run slow. Slower than my old voodoo 1 and geforce 2 gts of the time.

Posted on 2020-08-05, 22:34

by

by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I bought the 3Dfx Banshee but im a little short of money for now. I think i will buy 64mb ram later this year, it cost at least 40$ on ebay. 1. Just to be sure to understand well.. If i never use more than 64mb ram because i play only games with this computer, will i still have my 128mb ram run as …

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Re: Anyone ever see an Aquanta XR/6 (12-way Pentium Pro)?

Posted on 2020-08-04, 09:39

by

by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

[...] I cannot understand how this would scale farther Just hypothesizing it's conceptually quite simple: PPro's internal logic supports clusters of 4, so you do 3 CPUs and the glue switch, as you describe with the /6. However instead of the glue just connecting two of those groups of 3 CPUs, the …

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Re: 486 dx2 - pc build ideas/help/recommendations

Posted on 2020-08-04, 09:25

by

by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

[...] ohh i did see it wasnt a scratch - it dried up hot glue as i discovered the was a loads of hot glue blobs and pull off as much as possible would it be possible to solder a coin cell battery holder where the old barrel battery was originally or will i need something else for that to work or …

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Re: 430FX jumper settings for 3x multiplier?

Posted on 2020-08-04, 06:29

by

by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Anonymous Coward wrote on 2020-08-04, 00:48: Were 133s ever multiplier locked? As far as I know this only affected *some* MMX chips. Oh yes, the SY022 chips were famous for it. I was very surprised recently to learn that some SY022 chips did let you modify the multiplier.

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Re: I have an Aztech Sound card that I cannot seem to get the drivers working for.

Posted on 2020-08-04, 06:27

by

by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

As for DOS drivers: you don't need any, it's hardware SB2.0 compatible. All you need is the config tool to set IRQ & DMA (as base address is set by jumper, currently 0x220 looking at your pic). In fact, you might not even need that - you can find current settings by trial and error, and if they're …

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Re: 486 dx2 - pc build ideas/help/recommendations

Posted on 2020-08-04, 06:19

by

by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

[...] ohh i did see it wasnt a scratch - it dried up hot glue as i discovered the was a loads of hot glue blobs and pull off as much as possible would it be possible to solder a coin cell battery holder where the old barrel battery was originally or will i need something else for that to work or …

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Re: I have an Aztech Sound card that I cannot seem to get the drivers working for.

Posted on 2020-08-03, 22:33

by

by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The Packard Bell P/N is probably on the back of the card and starts with a 6. Not that that's going to help you with an old beast like this. In any event, it is the MMSN811 (which goes by many marketing names), with its 2nd gen Aztech AZT1605-U05 chipset. As for DOS drivers: you don't need any, it's …

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Re: Routing sound cables to minimize noise

Posted on 2020-08-03, 22:00

by

by dionb

in Marvin \ Sound

in Marvin \ Sound

No, definitely not removing any ground pins. Have been messing around with different 12V adapters, but looks like it's not the power supplies. Tbh I suspect the Multilink adapter more than the monitor, but - miracles in finding even rarer hardware aside - I can't use the monitor without it, so too …

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Re: Tips for thrifting 486 parts?

Posted on 2020-08-03, 10:45

by

by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Also, factor in what you know you can repair. It's generally a safe bet that if a component has one issue not obviously caused by careless storage/transport, that is the reason it was thrown out. If you can fix that issue, you've got a good chance of getting a working part. Back when I was a cash- …

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Re: MB slot types (Abit PG5)

Posted on 2020-08-03, 08:48

by

by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thanks. That's interesting. I wonder why they had a need to add the proprietary VGA slot. I don't see any references to that in SiS 5511 datasheet. So perhaps some proprietary form of unified memory architecture solution? Or combining selected ISA signals for Soundblaster-compatible combined VGA+ …

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Re: 486 dx2 - pc build ideas/help/recommendations

Posted on 2020-08-03, 07:39

by

by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Robhalfordfan wrote on 2020-08-03, 07:24: [...] Thank you and where is the scratch on the ic Right-hand Winbond chip, between top PCI slot and SIMMs.

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Re: 440BX - BIOS shows 756MB and CPU-Z shows 1 GB: Which is right?

Posted on 2020-08-02, 15:48

by

by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

@dionb, thanks for the input. Here's my exact RAM purchase: https://www.ebay.com/itm/153188692778 As for the why, I shouldn't have to explain that on this site. (Because I can!) :) Er, except on this chipset: you can't :P i440BX has more than earned its legendary reputation, but it remains a 1998 …

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