Re: Conner disks

Posted on 2012-02-08, 00:40

by

by Markk

in Milliways

in Milliways

I have an ancient 8086-clone(OKI I think) laptop, which has a 21MB 2.5" conner disk. Initially it didn't work. So once I decided to open the cover of the disk. It seemed that the head was stuck. If moved it a little, it would work for a while, but a soon as the computer was powered off, and left …

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Re: PENTIUM II VOODOO POWERED

Posted on 2012-02-07, 00:54

by

by Markk

in Marvin \ System Specs

in Marvin \ System Specs

Obviously, the word "daughterboard" is misleading, and made the guys think of a wavetable card. I have the same soundblaster live, and I used to try to connect a midi keyboard on one of those ps/2-like sockets. I ended up using a cheaper midi to joystick port cable. But if you really want to make …

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Re: 80286 relic

Posted on 2012-02-01, 12:37

by

by Markk

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

LOL I agree, this puts things into perspective for "baby AT" vs "full AT" (though this board probably is an oversized AT anyway). It was used for some business or government purpose so I guess it's a form of an industrial board. I believe that prior to 1990, very large motherboards should be common …

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Re: 80286 relic

Posted on 2012-02-01, 00:37

by

by Markk

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

When I was a kid, and I'd been reading computer magazines, I really couldn't understand why they referred to all the boards I saw, as being of the "Baby" AT form. Nowadays I can see why...

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Re: Battery for RTC clock

Posted on 2012-01-31, 13:30

by

by Markk

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I just did some research on these coin type batteries, and it seems that their type number is the battery's dimensions. So for a 2032 it's 20mm diameter and 32mm height. Then it shouldn't be that hard to measure the type for a missing battery. edit : wrong, it's 20mm diameter and 3.2mm height .

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Re: Monochrome TFT

Posted on 2012-01-31, 12:59

by

by Markk

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I've seen that before. Interesting, but not quite a bargain...

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Re: Battery for RTC clock

Posted on 2012-01-31, 12:57

by

by Markk

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

What type of card do you have? I used to have an AST six pak plus card on my xt for a real time clock. When I got it it had a larger battery than a 2032. I remember that it worked fine using a 2032 even if it was smaller. Then I purchased the correct type. Recently I sold my xt board with the AST …

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Re: Ye Olde Synthe i486

Posted on 2012-01-31, 12:41

by

by Markk

in Marvin \ System Specs

in Marvin \ System Specs

Well if that's the case, well done! In my room, where the lack of space is obvious, I have a good hi-fi system with two line inputs, and I use a couple of these, in order to connect more machines : http://www.yousaytoo.com/gallery_image/pics/19/32/64/1291519/original/remote_image20110603-22664- …

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Re: 1990: What hardware were you using?

Posted on 2012-01-31, 11:43

by

by Markk

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The motherboard had only 6 expension slots. VGA card was cheap (Trident was almost the cheapest you could get) And the cpu couldnt be replaced.. It was welded on the board.. Well, I think you ask too much for a 1993 386 :dead: . In 1993 if you were lucky you would have a sound card. So that's 3 …

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Re: Ye Olde Synthe i486

Posted on 2012-01-31, 11:29

by

by Markk

in Marvin \ System Specs

in Marvin \ System Specs

The first 2 channels are for microphones, so you can't use them for a line level signal. One stereo line level input is certainly one pair of the white/red rca connectors, and probably some of the silver 1/4" jack inputs. But you're going to need a few adaptors in order for that to work.

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Re: 1990: What hardware were you using?

Posted on 2012-01-30, 00:53

by

by Markk

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

In 1990 I was in elementary school. I didn't have a PC of my own yet. But we had a computer class at school. There was a room with 10 Amstrad 1512 pcs, and we used to form groups of 3-4 persons that would sit in front of each pc. We were learning the Logo language and design stuff, which when we …

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Re: 486 Time Machine Build

Posted on 2012-01-30, 00:42

by

by Markk

in Marvin \ System Specs

in Marvin \ System Specs

Beautiful! I love that kind of desktop cases. I'm using one myself on my 286 pc. And that's a really nice 486. Well done!

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Re: If you were building a 486 - would you go VLB or PCI?

Posted on 2012-01-28, 15:39

by

by Markk

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

On my 486 VLB board (Soyo) I tried once to compare a DX/50 to a DX2/66 and while the first seemed to perform really good, the results showed that the DX2 was faster.

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Re: If you were building a 486 - would you go VLB or PCI?

Posted on 2012-01-28, 13:53

by

by Markk

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Btw, the CPU broke into 3 pieces? I've never seen that happen before. For how long was the power on? Well it wasn't much longer that 1-2 seconds. But it was enough to damage it... I remember that I took a picture of it, and finally I found it. It seems that I didn't remember it very well. It was …

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Re: If you were building a 486 - would you go VLB or PCI?

Posted on 2012-01-28, 12:09

by

by Markk

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I have an older Soyo 486 VLB board. I had a dx2/66 cpu on, and once I bought a heatsink/fan to place on it just to be safe. After a few days, while wanting to fix something and I removed the cpu. Then, by not paying much attention to what it's original position was, and since with the heatsing on …

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Re: If you were building a 486 - would you go VLB or PCI?

Posted on 2012-01-27, 11:48

by

by Markk

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

In my opinion, the classic 486s were those up to 66MHz. Anything faster released later, was a cheaper substitute for a pentium system. It was maybe a little faster than a dx2/66 but slower than the low-end pentiums. And I believe that VLB goes better with the slower 486s, while PCI is better on the …

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Re: 80286 suntac motherboard.

Posted on 2012-01-27, 01:10

by

by Markk

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I've been looking for crystals about half a year ago. I needed a 40Mhz for my other 286 which was upgraded from a siemens 286-16 to a Harris 286-20, and a 50MHz one to test a 386-25. I found on ebay, My original BIOS didn't have diagnostics. But that was the one that didn't work. The other I use now …

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Re: 80286 suntac motherboard.

Posted on 2012-01-26, 13:20

by

by Markk

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I told you I've got the same board on another thread. I took a look at it later and found out that it is similar, yet not the same. Mine has more memory sockets. But the layout is very similar. I encountered the same problem concerning the BIOS once, and it turned out to be one of the dip switches …

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Re: 80286 suntac motherboard.

Posted on 2012-01-26, 11:08

by

by Markk

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

If I can see well, there isn't a socket for a 2032 battery, but a circle indicating where such a socket would be placed. I bet that originally it had a barrel type battery soldered there.It must also have an external battery connector. If you're going to change the cpu, check the crystal. If it has …

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Re: The OPTi 495SLC 386/486 chipset

Posted on 2012-01-26, 10:57

by

by Markk

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I believe the VLB slots would work with a 386. Why not? As for your final question, about the cpu socket, look at the last photos here : http://redhill.net.au/b/b-94.html . It seems there's a socket for a 386, and another larger one that can be used for a 486 or a 387.

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