Re: Rebuilding "Bakbeest" (486 Intel Ninja)

Posted on 2020-06-29, 23:09

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by waterbeesje

in Marvin \ System Specs

in Marvin \ System Specs

Drivers. Plug&pray. Went up and down the hill a few times more than is like, but I'm getting somewhere! Windows and the mouse didn't seem to like eachother. Just by trial and error I discovered Windows would not respond to the mouse when ctmouse was loaded. Reboot without loading ctmouse and Windows …

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Re: Rebuilding "Bakbeest" (486 Intel Ninja)

Posted on 2020-06-28, 20:45

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by waterbeesje

in Marvin \ System Specs

in Marvin \ System Specs

Windows is getting me crazy on the mouse, my perfectly well working Logitech three button mouse just won't be initialised by Windows. Besides I don't seem to find ant good Windows 3.11 driver that works with my S3 968 graphics card, besides standard VGA. So I deleted Windows 3.11 for now, going to …

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Re: Does this DIP memory fit on this ET4000?

Posted on 2020-06-28, 08:33

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by waterbeesje

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thankfully the memory soldered onboard also matches speed grade on the new ones: 70ns Faster can't do harm but slower mar result in instability or slow your card down (like the incompatible 41256 -80 ones you also have on your pucture)

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Re: Rebuilding "Bakbeest" (486 Intel Ninja)

Posted on 2020-06-27, 21:16

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by waterbeesje

in Marvin \ System Specs

in Marvin \ System Specs

The CF to IDE is already part of the system :) Primary master is the good old rotating noisy hard disk, and primary slave is the CF adapter. When the system is up and running I'm gonna make a full backup to CF and store at my (fairly modern) home server. I just can't let go the good old rattling …

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Re: Rebuilding "Bakbeest" (486 Intel Ninja)

Posted on 2020-06-27, 12:37

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by waterbeesje

in Marvin \ System Specs

in Marvin \ System Specs

I got into sound cards yesterday. The Sound blaster 32 didn't really fit well, all kinds of collision with cables and headers. Besides, the IDE cable for the CDROM would be exactly at the CPU cooler, blocking airflow. So I'll stick with a shorter card. I did test the card from my 386 computer which …

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Re: What is your weirdest troubleshooting experience when dealing with retro computers/hardware?

Posted on 2020-06-25, 17:01

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by waterbeesje

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I had an issue where when you first turned on the 386 pc it did read floppies for about 15 minutes and after that it stopped reading the floppies and gave just errors, so if I wanted to transfer data from floppies to hard drive I had to do it immediately after I turned on the computer. Never really …

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Re: What is your weirdest troubleshooting experience when dealing with retro computers/hardware?

Posted on 2020-06-25, 14:14

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by waterbeesje

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Weird stuff here as well, not figure it out yet. My oldest computer is a Multitech MPF-PC, 8088 IBM PC clone. It's got onboard fdd controller and a 360fdd attached, and an 8 bit ISA mfm controller with (if I remember the type correctly) 10MB Shugart SA712 hard disk attached. Trying to boot from …

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Re: Identifying my XT clone

Posted on 2020-06-24, 22:00

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by waterbeesje

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

That's gonna be hard, there were literally dozens of computer brand, not too mention noname computers, assembled by individual shops... And then you got the home grown PC... The dark grey panel does remind me of commodore, but the round edges don't seem to fit commodore? Wild guess...

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Re: External CD Rom Drive Q's -Scsi? vs. Parallel/EPP?

Posted on 2020-06-21, 21:26

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by waterbeesje

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Not really the most beautiful solution, but I once attached an externally placed internal IDE drive to my IBM model 30-286: Sound card with onboard IDE. Attached the IDE ribbon cable to it and got it out thru a slot cover youth openings. Power came from some ISA breadboard card where the power cable …

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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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