Re: How to get 486 SXL2-66 to clock-double w/AMI Mark V Baby Screamer motherboard

Posted on 2018-02-06, 15:57

by

by Anonymous Coward

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Are you sure the screamer doesn't have hidden or slow refresh? Maybe the ability to toggle them is just not available. We really need to get MR-BIOS for this board.

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Re: Compudyne 486 rebuild

Posted on 2018-02-06, 15:03

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by Anonymous Coward

in Marvin \ System Specs

in Marvin \ System Specs

Gotta love those triangles. Great bezel design.

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Re: How to get 486 SXL2-66 to clock-double w/AMI Mark V Baby Screamer motherboard

Posted on 2018-02-06, 09:35

by

by Anonymous Coward

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

That post from Uncreative Labs was written by me many years ago before I had a better understanding of the DLC type CPUs. At the time I hadn't read the 486SXL reference manual, and I didn't know that TI switched the function of the CCR0 register that controls caching scheme (direct mapped/two way …

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Re: Best 386 Motherboard?

Posted on 2018-02-05, 09:35

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by Anonymous Coward

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

From what I recall from another poster, a 386 board with VLB only seems to show any benefit from VLB when using clock doubled CPUs. In my opinion, it has more to do with whether or not the CPU has any cache. When I compared a VLB mach64 with an ISA mach64 on an OPTI495SX motherboard, the i386-33 ( …

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Re: Compudyne 486 rebuild

Posted on 2018-02-05, 01:14

by

by Anonymous Coward

in Marvin \ System Specs

in Marvin \ System Specs

I'm a big fan of Compudyne cases. Why won't you show us the front end?

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Re: Best 386 Motherboard?

Posted on 2018-02-04, 13:04

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by Anonymous Coward

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

It might be worth it for a hard disk controller or a network card. I highly doubt that the 386 can take advantage of the extra bandwidth of the EISA bus, but if you have a lot of RAM installed, it might be advantageous to have your adapters on a bus that has more than 24-bit address lines. I've …

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Re: Best 386 Motherboard?

Posted on 2018-02-04, 00:51

by

by Anonymous Coward

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

EISA for 386s exists, but it's mostly an OEM thing (nonstandard motherboards that only fit in the manufacturer's chassis). These boards tend to be a bit dated, but could still be fun to play with. Compaq, ALR or AST probably made the better ones, but AST had weird 64-pin memory. There are a few AT …

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Re: Best 386 Motherboard?

Posted on 2018-02-03, 12:23

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by Anonymous Coward

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

There are a few 386 boards that take FPM (not EDO) 72-pin SIMMs. Most of them are either PS/2s or OEM machines. I've seen a few relatively standard 386s with that configuration though. I don't know that there's any advantage of going that route unless it's difficult to get 4MB density 30-pin SIMMs. …

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Re: a 386 with 256K cache? It is done and works, mostly (questions inside)

Posted on 2018-02-03, 12:18

by

by Anonymous Coward

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

That's a nice, clean Cyrix chip you have there.

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Re: Socket 5 Beast Restoration

Posted on 2018-02-01, 11:58

by

by Anonymous Coward

in Marvin \ System Specs

in Marvin \ System Specs

No way, Mach64GX is period correct.

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Re: Creative Waveblaster ct1900 value?

Posted on 2018-02-01, 11:55

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by Anonymous Coward

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I am was pretty sure I saw this thread near the top of the page. It almost makes me wonder if somebody responded before me and then retracted their post.

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Re: Bought these (retro) hardware today

Posted on 2018-02-01, 11:52

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by Anonymous Coward

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

chose007 wrote: finally got my first EISA VGA card S3 928 by Miro […] Show full quote finally got my first EISA VGA card S3 928 by Miro Nice card. Very similar to the ELSA Winner 2000, but without extra ISA interface. I kind of wish I hadn't traded mine away.

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Re: Creative Waveblaster ct1900 value?

Posted on 2018-02-01, 11:24

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by Anonymous Coward

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Interesting. I wasn't paying attention to the date when I responded to the thread. I assumed it was a very recent posting.

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Re: The TI486SXL2-66 (PGA-132)... & repair!

Posted on 2018-02-01, 05:01

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by Anonymous Coward

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Is it just the 66MHz version of this that's rare as hell, or is it because it comes as a drop-in upgrade package rather than a surface-mount chip? I was looking around and it seems 50MHz SXLC2s are fairly readily available. Either way good on you guys for putting in the time to fix these up and get …

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Re: The TI486SXL2-66 (PGA-132)... & repair!

Posted on 2018-02-01, 04:55

by

by Anonymous Coward

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Don't bother trying to pry off that white "socket". It's part of the module, and it doesn't come off.

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Re: Creative Waveblaster ct1900 value?

Posted on 2018-02-01, 04:52

by

by Anonymous Coward

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Most of the Wave Blaster 1's I've seen sell recently go for more than $100. I think I even saw one sell for close to $200...without the box or extras. There's not much point to ask here what things are worth. Go on eBay and do a search for recently sold items. That usually holds the answer.

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Re: Best 386 Motherboard?

Posted on 2018-02-01, 01:19

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by Anonymous Coward

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Maybe NT 3.x would run okay. I personally wouldn't want to use anything less than a 5x86-133 on NT4.

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Re: Rarest CPUs?

Posted on 2018-02-01, 00:47

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by Anonymous Coward

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The Cyrix branded 6x86 P200+ (the original, not the L version) is supposedly pretty rare. There apparently are P200+ rated ST versions as well, and those are even more obscure. I don't even think they made it to retail. The IBM branded ones are somewhat common however.

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Re: Best 386 Motherboard?

Posted on 2018-02-01, 00:35

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by Anonymous Coward

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I always use matched 60ns 9-chip SIMMs when available. I'm hoping to have 32MB installed in my system, but more than 16MB can be problematic in many of the boards with earlier chipsets and BIOSes. Some 386 boards can take up to 64MB of RAM, but normally they don't cache all the RAM. The only board I …

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Re: Best 386 Motherboard?

Posted on 2018-01-31, 14:47

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by Anonymous Coward

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Google killed Picasa...and along with it all of my photo comments. The photos are still available on google photo (which is a crap service). I migrated some of my stuff over to imgur, but at the moment the link escapes me. I'm actually in the process of redesigning my Ultimate 386, and I'll create a …

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