Re: IDE controller card for Pentium 70 (ISA) worth considering?

Posted on 2019-08-07, 12:04

by

by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

There are also 3.5" drive bays for IDE-SD/CF adapters. The disk drive is too far away as well sadly - and I only have one 3.5 bay which I need for the floppy drive. And yeah it's a Pentium 75 - typo. But I found the manual and it says there is a 32 bit PCI slot. I assume PCI controllers ARE fast …

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Re: IDE controller card for Pentium 70 (ISA) worth considering?

Posted on 2019-08-07, 11:31

by

by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Pentium 70? That never existed. Sounds like either Pentium 60 or 75. If it's a Pentium 60, the 'silly reason' it only came with one IDE port was that is used the Intel i430LX chipset which only features one IDE channel... Anyway, compatibility with old junk depends mainly on PCI version. For that we …

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Re: 486 VLB/PCI Motherboard: Go VLB or PCI

Posted on 2019-08-07, 08:25

by

by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

PCI (the original variant) works at 33 MHz. VLB works at the same frequency as CPU's FSB. If you have a DX4-100, ie. 33 MHz FSB, then go PCI. VLB may be better for CPUs with 40 MHz FSB. Downside: 40MHz (let alone 50MHz) VLB operation is far from trouble-free. Frequently you need to add a wait state …

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Weames PA-9050-B (AD Echo) ROM (?) sockets

Posted on 2019-08-06, 22:33

by

by dionb

in Marvin \ Sound

in Marvin \ Sound

I have myself a little mystery card here. Stock photo, but identical to mine: http://www.yjfy.com/images/oldhard/sound/pa-wp9050-b_9403.jpg http://www.yjfy.com/images/oldhard/sound/pa-wp9050-b_9403_1.jpg The card has a model number: PA-WP9050-B (REV C) And an FCC ID: JUGMML9050 which resolves as: …

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Re: 486 VLB/PCI Motherboard: Go VLB or PCI

Posted on 2019-08-06, 14:49

by

by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

It really depends what you want. I currently have a nice Cx5x86 build with PCI that is almost certainly faster than a VLB build would be (unless you had a very, very fast VLB video card and/or no PCI cards with decent DOS speed), but I'm actively looking for a VLB motherboard that would take the …

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Re: Pentium 233 MMX vs 200 MMX

Posted on 2019-08-05, 22:01

by

by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

And of course it depends on the motherboard. Mine only did 233Mhz after I exploited an undocumented (by IBM anyway) trick to use a 3.5 multiplier at 66Mhz. I think every mmx supporting mobo will have the 1,5x multiplier setting? That will act as 3,5x with a 233mmx (or unlocked 200mmx). Every single …

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Re: Pentium 233 MMX vs 200 MMX

Posted on 2019-08-05, 00:03

by

by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Tbh, the later Pentium MMX CPUs were so overengineered with fantastic yields that binning was pretty arbitrary (all parts could easily do 233MHz or - much - faster). I'd just set the multiplier with the current CPU to 1.5/3.5 and enjoy 233MHz with that. Agreed that those 3D games are very demanding. …

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Re: Not sure what PCI graphics card to get

Posted on 2019-08-04, 11:55

by

by dionb

in Marvin \ Video

in Marvin \ Video

Gf2MX and TNT2-M64 PCI aren't that rare/expensive, offer more performance than this system could use (so no bottleneck) and are ideal in terms of compatibility. Of course a V3-3000 PCI would be nice, but unless you're very lucky, that will be a quite different category. But... if you're struggling …

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Re: What would be the rarest build?

Posted on 2019-08-02, 22:44

by

by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

S3 Savage2000 cards are also fairly rare. I have quite a few Savage 2000 cards, most of them are made by Diamond. I obtained them very easy in the past and they were *very* cheap. Now they don't appear in the wild so often, but that's true for almost any card from that era, so I don't think they …

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Re: What sort of PC is this

Posted on 2019-08-01, 18:40

by

by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

[...] I have Ultra 450 and Ultra 5. Very boring machines :D Fun fact: the Ultra 5 was built by the same ODM as Packard Bell machines at the time - and it showed. Compared to the earlier Ultra1/2 the 5 was very low-end PC-like in terms of build quality. I believe they changed ODM again soon …

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Re: Bought these (retro) hardware today

Posted on 2019-08-01, 15:45

by

by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Love that Alaris Leopard. Has to be one of the weirdest boards out there. I want one IBM SLC/DLC/Blue Lightning board. The later Blue Lightning undoubtedly offers the best performance, but I have an i7 for that - so I'd love to get my hands on a Leopard for undoubtably the best 16b I/O performance …

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Re: What sort of PC is this

Posted on 2019-08-01, 15:42

by

by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Solaris is Unix, not Linux, and Sun systems can do a lot more than just networking (there's a reason Oracle - a database company - snapped them up). But that aside, if you're truly not interested it's better that someone who is takes it, and at this price pretty much anyone who is interested in …

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Re: CGA to VGA converters vs VGA cards in an XT clone

Posted on 2019-08-01, 13:31

by

by dionb

in Marvin \ Video

in Marvin \ Video

Alternatively, there's also the SCART route (RGB output lacks Composite CGA, though).. Those are two different things and if your card supports it, you could do both... SCART is a connector standard, not a signal standard. It originally supported RGB and composite, and was later updated to also …

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Re: So Realtek made a Video chip: RTG3105iEH

Posted on 2019-08-01, 13:14

by

by dionb

in Marvin \ Video

in Marvin \ Video

It seems to be a rather LATE chipset for the ISA bus, introduced in 1994, well after VLB and PCI were a thing. Where have you found that date? Look at the two Fujitsu chips above the Realtek controller. They have '9512' codes on them. That sounds like week 12 1995, which would match with the '9516' …

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Re: Which PCI Soundcard

Posted on 2019-08-01, 13:06

by

by dionb

in Marvin \ Sound

in Marvin \ Sound

Almoststew1990 wrote: It has a CN400 chipset and comes with a VIA VT1617A for audio. So this might be OK for DOS audio? That's the northbridge (CN400) and AC97 codec (VT1617A). What's the southbridge? If VT82C686B or VT8231 you should be in luck, if VT8233 or above less so and you need a PCI card.

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Re: Tube Time: Announcing The Snark Barker, a 100% Compatible SB 1.0 Replica!

Posted on 2019-08-01, 12:49

by

by dionb

in Marvin \ Sound

in Marvin \ Sound

root42 wrote: So my placeholders are here! Next up I’ll call in some quotes from China for metal brackets. E54D87B7-AB25-4E1B-8266-5252CCBFFA39.jpeg If you find a good quote, I'm in - have messed around a bit, but no results remotely like this one.

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Re: TC430HX voltage regulator gets way too hot

Posted on 2019-08-01, 10:07

by

by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The Serpent Rider wrote: Put a bigger heatsink on it? You can't. Heatsink is soldered to the motherboard. Nothing that a soldering iron can't solve...

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Re: What sort of PC is this

Posted on 2019-07-31, 22:28

by

by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Actually, you could run Win98SE on this with a SunPCI card - essentially a complete K6-2 or (more suitable for this model) P3 computer on a PCI card that would let you run x86 stuff at native speeds in a window under Solaris.

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Re: Which board and OS should i use for my MMX 200 build?

Posted on 2019-07-29, 09:15

by

by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Windows9566 wrote: why does the voltage regulator next to the CPU socket get really hot when i run it for a while? Because it's an old linear regulator so cheap & dirty and very inefficient. It basically just burns off the difference between 3.3V and 2.8V so by design gets hot.

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Re: Bought these (retro) hardware today

Posted on 2019-07-28, 21:24

by

by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

[...] I believe that is an Ultima Plus . I posted about mine a while back. It's a VERY early, if not first gen, PCI graphics card. https://www.vogons.org/viewtopic.php?f=46&t=39993&p=721779&hilit=matrox#p721779 Ah yes, that does look very similar. The Ultima Plus uses an Atlas chip (no hw gouraud …

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