Re: Choosing 286 motherboard

Posted on 2020-06-21, 17:59

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by waterbeesje

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Maybe your best chance may be looking for one that already has been modified to fit a 2032 style battery. Or, if you're not afraid of soldering, change the old barrel yourself. Some have connectors for an external battery so you can just disconnect the barrel and plug in the external one.

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Re: Bought these (retro) hardware today

Posted on 2020-06-21, 13:05

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by waterbeesje

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Made a deal on a Compaq SLT 286 today. Gonna collect it somewhere in the next few weeks. Cons: Dallas clock is dead Some little case damage No battery (empty slot) Keyboard wire falls apart No bios disk Untested fdd/HDD after some years of no usage Pros: Actually turns on and posts to say failed …

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Re: What is your oldest working Brand name computer ? - ( Challenge ).

Posted on 2020-06-19, 22:29

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by waterbeesje

in Marvin \ System Specs

in Marvin \ System Specs

http://vorselijk.nl/Vogons/Tavaflyer1.jpg http://vorselijk.nl/Vogons/Tavaflyer2.jpg http://vorselijk.nl/Vogons/Tavaflyer3.jpg And yes, it boots from HDD, I haven't got a single floppy to go with it :( @waterbeesie, ver doesnt work, but I hope the second photo answers your question. db This seems …

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Re: Rebuilding "Bakbeest" (486 Intel Ninja)

Posted on 2020-06-19, 22:23

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by waterbeesje

in Marvin \ System Specs

in Marvin \ System Specs

Just to be clear wasn't questioning your choice of the case but the original system builder. Full tower case would have added to the initial cost. Good for you (as long as you have the space) as its more rare/interesting . Hanging not bug isnt an issue unless your using external midi device, and if …

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Re: 486

Posted on 2020-06-19, 12:12

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by waterbeesje

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

For 30 pin Simms keep in mind you need four or eight modules. These are 8 bit wide and your 486 CPU expects 32 bit bandwidth (as with a 386 DX, while the 386 SX and 286 expect 16 bit and can go with only 2 Simms. 72 pin dimms can usually be used single as these are usually 32 bit wide. Also don't go …

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Re: 486

Posted on 2020-06-19, 10:00

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by waterbeesje

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

For a dos box it will be a nice base. The Matrox card would be quite fast for a 486, as it almost certainly will not be the bottleneck and will give you very clear image. Getting a S3Trio64 or S3 864 would make it more period correct for a later 486, and those are still quite fast for PCI. And …

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Re: 486

Posted on 2020-06-19, 07:32

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by waterbeesje

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The pin 1 is marked on the motherboard, where you can see the A1 note on the silk screen. There you should align the CPU at. Inserting it otherwise will at least make it fail to boot, possibly damaging both CPU and motherboard due to short circuit. Socket 3 lif is unusual but not impossible. Also …

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Re: 486

Posted on 2020-06-18, 21:14

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by waterbeesje

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

To me it sounds like the CMOS battery could be it. If it was already corroded you did the right thing by removing it. Replacing it but the very same type of cell could solve it (and maybe not). To be sure: did you do a CMOS reset? Sometimes that may solve it. Naming a DX/4 100 the jackpot just …

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Re: 486

Posted on 2020-06-18, 18:37

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by waterbeesje

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

You could look at the bottom of the CPU to see if you can find any numbers and check if you can find them at http://www.cpu-collection.de/ Just putting an unknown socket 3 CPU on a random motherboard may get you some little fireworks if the he CPU is 3,3 or 3,45v (DX/4 and some DX/2) and three …

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Re: Sy-025J2 / unknown 486 ISA - Need help, Have questions

Posted on 2020-06-18, 18:08

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by waterbeesje

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Unknown no 2: Nice little board, not the fastest one but very simple to use. I have one too (bios says 4SLUD-2.0 as well) . On my board there is a 50MHz crystal placed and I run it with a DX 50 processor (not a DX/2!) And managed to get it stable with 0ws cache (20ns) and 1ws ram (8x 1MB, 70ns). So …

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Re: Bought these (retro) hardware today

Posted on 2020-06-18, 14:25

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by waterbeesje

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

seleryba wrote on 2020-06-18, 10:25: Bought two CPUs: AMD 5x86-P75 and UMC Green CPU SUPER40 Nice catch! If they were rationally priced over here I'd get myself some too... But €50+ incl shipping is a but to much.

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Re: The Ultimate Hardware 2019 project- a new, modern TH99

Posted on 2020-06-17, 22:06

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by waterbeesje

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Cap values are certainly handy when these have to be replaced! By placing values right on top of an image will be sufficient for these older boards of the are not too many caps... Would this also work with lots of caps clustered together?

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Re: IBM Aptiva 2137 - IBM theme files found!

Posted on 2020-06-17, 11:31

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by waterbeesje

in Marvin \ Software

in Marvin \ Software

Don't know about the ThinkPad series... But since IBM did reuse some of its images, slightly modified for the drivers, they may have been using them I guess? It's not unlikely...

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Re: Rebuilding "Bakbeest" (486 Intel Ninja)

Posted on 2020-06-16, 19:23

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by waterbeesje

in Marvin \ System Specs

in Marvin \ System Specs

Seems strange to have such a big case for what a standard case could support. Usually these full towers had SCSI and multiple HDD's If it was me I'd use the onboard IDE and attach the CD drive off the soundcard especially if your keeping it more or less a 95 build. But I also feel like working to …

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Re: What is your oldest working Brand name computer ? - ( Challenge ).

Posted on 2020-06-16, 08:37

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by waterbeesje

in Marvin \ System Specs

in Marvin \ System Specs

I have in my possession a Tava Flyer. I just can't find the photo's I have of the thing, It is in working condition however, I do not have any fitting floppy or other drives so its just something I have in storage and do not use it, the screen isn't very fresh. For pictures I can refer to: http:// …

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Re: Rebuilding "Bakbeest" (486 Intel Ninja)

Posted on 2020-06-15, 11:12

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by waterbeesje

in Marvin \ System Specs

in Marvin \ System Specs

All of your graphics cards are faster than the PCI host of the mainboard. You might want to check if you have options like "PCI write buffer" and/or "PCI burst writes" in the chipset setup, and enable them. Early Intel chipset PCI performance is not the great . I wonder if something like FASTVID …

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Re: Rebuilding "Bakbeest" (486 Intel Ninja)

Posted on 2020-06-15, 08:13

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by waterbeesje

in Marvin \ System Specs

in Marvin \ System Specs

Chipset options contains two options: one involves memory usage by ISA stuff, the other one gives me 0.4fps higher performance on 3D bench and PC player Vesa. No changes in other benchmarks. This system being not the fastest is correct as even my IBM PS/Valuepoint with S3-805 onboard (VLB) gets …

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Re: Rebuilding "Bakbeest" (486 Intel Ninja)

Posted on 2020-06-14, 22:32

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by waterbeesje

in Marvin \ System Specs

in Marvin \ System Specs

And took a little time to benchmark some graphics cards. Bios settings: stock, as there is nothing to change at all... Same 70ns memory Good old LAN card 64MB compactflash, loaded with MS-DOS 6.22 and Phills benchmark compilation. VGA cards tested: - Video Magic pci-V864 (V864 1MB) - Diamond Stealth …

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Re: Rebuilding "Bakbeest" (486 Intel Ninja)

Posted on 2020-06-14, 20:55

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by waterbeesje

in Marvin \ System Specs

in Marvin \ System Specs

First things first, the Dallas was dead and was in need of repair. Without it, there's no way the bios can save it's config. I took out the motherboard (again) and got my cutting tools to expose the Dallas' leads to the internal battery. As I explained before, I did not want to resolder the whole …

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Re: Bought these (retro) hardware today

Posted on 2020-06-13, 11:32

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by waterbeesje

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Perhaps not the most exciting find ever, but for almost nothing it's basically ok 😀 The two lower ones match perfectly with almost any Pentium 2 without onboard sound.

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