Re: HWiNFO support of vintage hardware

Posted on 2021-01-27, 21:42

by

by Am386DX-40

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Or maybe the brownish one is somehow defect or unstable and it fails (besides the IEEE test) the generic IIT check. Maybe sometimes, maybe permanently... I don't want to say that's impossible, because obviously it isn't, but pretty improbable. They both work perfectly fine with all software I throw …

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Re: HWiNFO support of vintage hardware

Posted on 2021-01-27, 21:19

by

by Am386DX-40

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Now that I look at more details especially FPU clock detection based on execution time, it's clearly not a 387DX as that one has much longer execution times for certain instructions. I'd rather say that the brownish one is an early IIT part that didn't yet support all later quirks. Yup, the …

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Re: HWiNFO support of vintage hardware

Posted on 2021-01-27, 20:41

by

by Am386DX-40

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Ok, as I had the Jaguar V on the bench I went and removed the fpu and swapped it with the one on the M326, and HWInfo reports it as an Intel 80387DX at 73.6 MHz, just like the M326. So both FPUs are clearly different (even though they look identical) and they might report a different string to …

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Re: HWiNFO support of vintage hardware

Posted on 2021-01-27, 20:24

by

by Am386DX-40

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thanks for the reports, those are interesting systems! I will adjust the mainboard names so it will be correctly reported. But the FPU detection is quite strange and I have no clue why the IIT check works on one machine, but doesn't on another one with the same FPU model. Can you try to open the …

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Re: HWiNFO support of vintage hardware

Posted on 2021-01-27, 19:28

by

by Am386DX-40

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Here's another one. In this case, the motherboard is an Octek Jaguar V rev 1.4, also with a DX-40 soldered in. This time the IIT 4C87DLC-40 (which is not the same as the one in the motherboard I posted above) is correctly identified as IIT, but incorrectly as 3C87 (though they might be the same chip …

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Re: HWiNFO support of vintage hardware

Posted on 2021-01-27, 19:09

by

by Am386DX-40

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Can you please attach the HWiNFO Debug File? This can be created by running with the -d argument. I have a PcChips M326 V5.2 motherboard with an Am386DX-40 soldered in, and I added an IIT 4C87DLC-40 FPU. The motherboard is detected as M601/602 which is not correct (that one is a 486 board with 3 …

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Are all IIT 387 FPUs the same? 3C87 =/= 4C87DLC after all?

Posted on 2021-01-27, 17:41

by

by Am386DX-40

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hey guys, another tricky (and interesting) one. I've always read that there's absolutely no difference between the IIT 3C87 and the IIT 4C87DLC, and that the 4C87 is just a relabelled 3C87 that changed the name to go with the Cyrix/TI 486DLC line of processors. Fair enough. But today, I've found …

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Re: Weird memory layout on generic Trident 9440

Posted on 2021-01-14, 15:51

by

by Am386DX-40

in Marvin \ Video

in Marvin \ Video

Looks like someone grabbed whatever was left in the back of the drawer and jammed it in that card. Yup, looks like that, and it didn't have any impact. I removed those 2 chips that are to the right of the card (the vertical ones) and it's still working and still reporting 1mb of ram, even if there …

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Weird memory layout on generic Trident 9440

Posted on 2021-01-14, 14:07

by

by Am386DX-40

in Marvin \ Video

in Marvin \ Video

Ok, so here's a tricky one and we'll see if someone can clarify things a bit for me. I got a generic Trident 9440 card that I've been using to do some quick testing of several socket 7 processors to see if they work or not, but something got my attention: this Trident card has 5 memory sockets (for …

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Re: Why are 3Com NICs regarded in such high regard?

Posted on 2020-12-17, 18:50

by

by Am386DX-40

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I've run a few on various 3Com chipsets, but not in DOS. Some revisions performed better than others. https://www.vogons.org/viewtopic.php?p=808110#p808110 Yeah, I saw your thread, but those were PCI cards right? I'm looking for ISA. Your benchmark was cool and useful though, for my Socket 7+ …

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Re: Why are 3Com NICs regarded in such high regard?

Posted on 2020-12-17, 16:32

by

by Am386DX-40

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Sorry to bump this old thread, but has any1 done any benchmarks/comparisons under pure DOS with several isa cards?

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Re: BIOS image collection - requests, discussion etc

Posted on 2020-10-08, 16:59

by

by Am386DX-40

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Can some mod edit this entry? https://www.vogons.org/viewtopic.php?p=679058#p679058 #6 Manufacturer/Identifier: Chipset: SiS 85C407 It's clearly a Soyo 025J2, the last "2" indicating it has 256kb of cache. Part of the Soyo 025J/K/L family. The chipset would be SiS 85C471 And here's the manual with …

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Re: Socket A: Nvidia vs Via - battle of the platforms!

Posted on 2020-10-08, 13:40

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by Am386DX-40

in Marvin \ System Specs

in Marvin \ System Specs

I do have a complete Abit KG7-raid build with Athlon 1400C, 1*2gb of CAS2 ram; geforce4 ti and an old IDE WD 60gb. Planing to do a comparison between AMD760 chipset, VIA KT133A and VIA KT266A to see which was the best performer in 2001 and between 1400C on Via KT133A and 1400S on VIA Apollo 133T to …

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Re: Turbo/Speed LED Display help needed.

Posted on 2020-10-07, 23:19

by

by Am386DX-40

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

See if you can find something here: https://drive.google.com/drive/folders/10o3zS5jf4PJgGXsLq_ICR9L32IbemrFf?fbclid=IwAR3cSlauIRgiHepPtGS7XJz8eeLq_S6EerxoV_h1jnL2a_86VDKRPZmkcSs Even if you exact model is not there, you may get a grasp on how it works, or just power it up and change some jumpers to …

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Re: Where to find ide/xt type controller card?

Posted on 2020-10-07, 02:26

by

by Am386DX-40

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

There is no such thing. For XT machines, you could have MFM or RLL controller/drives, but not IDE. IDE was born with the AT machines (aka 286+). That's why XT-IDE was created.

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Re: Socket A: Nvidia vs Via - battle of the platforms!

Posted on 2020-10-06, 20:43

by

by Am386DX-40

in Marvin \ System Specs

in Marvin \ System Specs

Awesome collection! You're missing the KG7, or you forgot to type it 🤣

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Re: Post your 386 Speedsys results here

Posted on 2020-10-05, 21:06

by

by Am386DX-40

in Marvin \ System Specs

in Marvin \ System Specs

Going by what GigAHerz and stalk3r posted, and my own benchmark found in the previous page (https://www.vogons.org/viewtopic.php?p=797568#p797568) we can probably asume that we hit the limit of the "real" 386DX-40 at 31 mb/s cache and 20-21 mb/s ram. Stalk3r is using the same motherboard as I am, …

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Re: How about a MR-BIOS ROM file repository?

Posted on 2020-10-03, 15:13

by

by Am386DX-40

in Marvin \ Software

in Marvin \ Software

Guys, I have a Seritech SER-386ADIII with ALI M1429/M1431 chipset. Every time I install an FPU it hangs and won't boot, or be very very unstable. Was thinking of trying a MR-BIOS with it, but I haven't found any for ALI chipsets. Is there anything out there? Photo taken from another user: https:// …

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Re: How about a MR-BIOS ROM file repository?

Posted on 2020-10-03, 05:45

by

by Am386DX-40

in Marvin \ Software

in Marvin \ Software

Guys, I have a Seritech SER-386ADIII with ALI M1429/M1431 chipset. Every time I install an FPU it hangs and won't boot, or be very very unstable. Was thinking of trying a MR-BIOS with it, but I haven't found any for ALI chipsets. Is there anything out there? Photo taken from another user: https://i. …

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Re: Everything You Wanted To Know About Tualatin

Posted on 2020-10-03, 04:22

by

by Am386DX-40

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Not only Coppermine-T processors, there is at least 1 regular Coppermine that also comes with IHS, the SL5B3

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