Re: 286 motherboard memory issues

Posted on 2019-02-15, 12:17

by

by pan069

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Very nice! That's quite a collection. I see you have an Olivetti board. Awesome. I had two Olivetti's growing up in the early nineties, an M24 (8086) and an Olivetti PC S286, both thrown out by my mother a few years after I moved out of the house. I'm sure you can imagine the shock when I found out …

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Re: 286 motherboard memory issues

Posted on 2019-02-15, 10:09

by

by pan069

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Right click and open in new tab to get 100% view.

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Re: 286 motherboard memory issues

Posted on 2019-02-15, 10:01

by

by pan069

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

@Predator99 It even says "Bank 0" and "Bank 1" on the right hand side... Facepalm... 😀 I will first use the Bank 0 sockets for testing, then do the same tests on Bank 1. Could be that one there is a problem with one of the sockets?

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Re: 286 motherboard memory issues

Posted on 2019-02-15, 09:46

by

by pan069

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

@konc I'm pretty sure any of those BIOS options where Disabled, but I will check, just to be sure.

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Re: 286 motherboard memory issues

Posted on 2019-02-15, 09:45

by

by pan069

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Eagle eyes! OK. This is what I will try. I will remove the 4 smaller ones and remove the top bank. If that equates to 512Kb then I will switch out the bank with the ones from the the top bank. If one is kapot, it should equate to less memory reported in either try. If both times it reports 512Kb …

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Re: 286 motherboard memory issues

Posted on 2019-02-15, 09:10

by

by pan069

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Great suggestion! Thanks! To use half the memory, should I take out a column or two rows (if that makes sense)?

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286 motherboard memory issues

Posted on 2019-02-15, 08:54

by

by pan069

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi all, I have this 286 motherboard. It seems to be in good condition except that it seems to have some problems with the memory. There is supposed to be 1 meg on the board and when I first fire it up (after it's been cold for a while), the first time it will report 702Kb and every single time after …

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Problems with mode-x 360 x 270 on LCD display

Posted on 2019-01-28, 06:18

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by pan069

in Marvin \ Video

in Marvin \ Video

I'm currently doing a bit of graphics programming using mode-x resolution 360 x 270. I'm developing in DosBox and all seem to be well until I ran my app on real hardware that I noticed that mode-x 360 x 270 isn't correctly displayed. On an LCD display it seems to be able to display the 360 width …

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Re: 80GB hard drive on Pentium motherboard

Posted on 2019-01-18, 11:26

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by pan069

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

zyga64 wrote: Here you'll find patched bios for your motherboard. Up to 120GB is possible. Awesome! Thanks.

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Re: 80GB hard drive on Pentium motherboard

Posted on 2019-01-18, 10:40

by

by pan069

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

that's why it may be completely locked, that's why f4 didn't work Ah OK. I was under the impression that it would just try to allocated the largest possible size, but that doesn't seem to be the case then? Still not sure what the reason of the lock though...

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Re: 80GB hard drive on Pentium motherboard

Posted on 2019-01-18, 08:02

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by pan069

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thanks for that. Unfortunately my drives have no size related jumpers, so that's option is out the window. Re. the custom BIOS, I have an Award BIOS, is that the BIOS you're referring to? I will look into Dynamic Drive Overlay. There seems to be some detailed info here on Vogons by PhilsComputerLab …

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80GB hard drive on Pentium motherboard

Posted on 2019-01-18, 06:15

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by pan069

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I have this old Lucky Star 5I-VX1F board with a Pentium MMX in it and I also have a few 80GB Seagate hard drives lying around which to my knowledge all work fine. However, when I connect the drive to the board it's doing the "Detecting primary master [press F4 to skip]" thing and it just sits there. …

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Pentium MMX 166 in Lucky Star 5I-VX1F board

Posted on 2019-01-14, 23:44

by

by pan069

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

So, I have this Lucky Star 5I-VX1F board and an Intel Pentium MMX @ 166Mhz and I was wondering if the two actually fit together. I can find two references/manuals for this board and [1] does mention MMX support and [2] doesn't. Furthermore, when I look at reference [2] there is a section "CPU TYPE …

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Re: 286 external CMOS battery advice

Posted on 2019-01-13, 09:13

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by pan069

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I managed to find a manual for (it seems) a very similar board and it actually says this: J15: External Battery Pin 1. +6V voe Pin 2. Not Used Pin 3. Not Used Pin 4. Ground http://minuszerodegrees.net/manuals/misc/286%20HT%20Single%20Chip%20System%20Board%20-%20User's%20Manual.pdf Case closed I …

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286 external CMOS battery advice

Posted on 2019-01-13, 05:30

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by pan069

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi everyone! I have a 286 motherboard exactly like this one: https://i.imgur.com/ncqcsJz.jpg In my case, someone also removed the NiCad battery (thank you kind sir!). However, the board is now without CMOS memory. But, if you look closely, in the top left corner of the board, next to the keyboard …

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115/230v vs 120/240v

Posted on 2018-12-14, 10:34

by

by pan069

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi everyone, Another noob question but I think I'm better of asking dumb questions rather blowing stuff up. I have this AT power supply that says on the label: 400W Switching power supply AC 1/P 115/230V 6/3A 60/50HZ DC 0/P +5V +12V -5V -12V MAX A 32A 18A 0.5A 0.5A MIN A 0.5A 0.5A 0.5A 0.5A Now I'm …

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Re: Manual for StarTech/Motorola ISA IDE,FDC,COM,LPT controller card

Posted on 2018-12-13, 21:04

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by pan069

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I think I found something: http://www.arvutimuuseum.ee/th99/c/C-D/20266.htm More cards: http://www.arvutimuuseum.ee/th99/c/c16ide_i.htm

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Manual for StarTech/Motorola ISA IDE,FDC,COM,LPT controller card

Posted on 2018-12-09, 02:24

by

by pan069

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi everyone, I have this old controller card that was part of a 486 kit I had back in the early 90's. I'm looking for the manual for this thing as I'm trying to figure out what the jumper settings are: https://i.ibb.co/tDYwDdR/IMG-20181103-151531.jpg Not really any luck in finding anything, was …

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Re: Power supply advice

Posted on 2018-12-06, 19:52

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by pan069

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thanks guys! I look around a bit more. I did came across this while Googling, thought it might be of interest: https://whirlpool.net.au/wiki/psu_manufacturers

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Re: Power supply advice

Posted on 2018-12-06, 09:18

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by pan069

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I'd love to get my hands on a cool looking AT mini tower in good condition, but one can only dream I guess. I think my set ups will be running on the test bench I'am afraid..

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