Jumpers on my 386 motherboard.

Posted on 2017-04-10, 21:27

by

by Baoran

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I bought a 386 motherboard and I got it in the mail today. The motherboard seems to be KMC A419-8. I noticed that only half of the 8 cache slots are filled with chips. Since I don't have any kind of manual for the motherboard, I don't know if I need to change any jumpers on the motherboard if I …

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Re: Sticker residue removal.

Posted on 2017-04-10, 21:13

by

by Baoran

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Well, I managed to scratch all the white stuff from the sticker with just my finger nails and that just left the transparent sticky residue on cache ships of the motherboard that I got today. I'll probably try the isopropyl alcohol on it tomorrow.

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Re: Sticker residue removal.

Posted on 2017-04-10, 19:12

by

by Baoran

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I bought a bottle of 99% isopropyl alcohol 2 weeks ago. It was one liter bottle so it should last for a while and didn't cost much.

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Re: Sticker residue removal.

Posted on 2017-04-10, 13:29

by

by Baoran

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Would using isopropyl alcohol work and not damage anything? Just asking because I already have it and I would not need to buy anything.

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Sticker residue removal.

Posted on 2017-04-10, 10:39

by

by Baoran

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Anyone has any advice on how to remove sticker residue from memory modules, motherboards and cache chips without damaging them? They are usually just price stickers that someone has just put on to old hardware.

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Re: What retro activity did you get up to today?

Posted on 2017-04-08, 20:08

by

by Baoran

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I played around with some ecc ram modules I had gotten for free to check what size they were and if they worked. First I removed the non-ecc 256Mb module from my pentium 2 build. Then I put the first one there. It worked and it was also 256 Mb module. Then I turned ecc on in bios and everything …

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Re: Asus A8R32-MVP deluxe missing bracket

Posted on 2017-04-08, 09:32

by

by Baoran

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

After some searching, I found this: http://www.ebay.com/itm/272202539687?_trksid= … K%3AMEBIDX%3AIT Would that work with my motherboard?

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Re: Replacing my pentium 2 cpu fan.

Posted on 2017-04-08, 06:21

by

by Baoran

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I think a 80mm fan and 2 zip ties going underneath the heatsink where the heatsink is higher and through the screw holes of the fan might actually work. If I will be find thin enough zip tie to go through the screw holes and still long enough to go all around the heatsink.

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Re: Asus A8R32-MVP deluxe missing bracket

Posted on 2017-04-07, 22:40

by

by Baoran

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Are those brackets alike for all the motherboards? This is what my motherboard looks like after I removed the water block. I don't know if I would need a new back plate too or if I could use the one that was used with the water block. Filename 20170408_011218.jpg File size 1.99 MiB Views 347 views …

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Asus A8R32-MVP deluxe missing bracket

Posted on 2017-04-07, 22:14

by

by Baoran

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I have a Asus A8R32-MVP deluxe, but the plastic bracket that is around the cpu slot is missing. The motherboard used to be used with water cooling and that is why the bracked was removed, but the pump broke down and I would like to go back to air cooling in a smaller case now that there is really no …

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Re: AT Power supply for 386.

Posted on 2017-04-07, 20:28

by

by Baoran

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I just connected 2 old optical drives to it for load. I wouldn't have been upset if it would have destroyed those. Also another thing is that the seller said that the psu had been tested and is working. People always warn you about opening power supplies and that you might get electrocuted so I have …

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Re: AT Power supply for 386.

Posted on 2017-04-07, 19:44

by

by Baoran

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I just got the DTK PSU I talked about earlier. Seems to turn on and I connected 2 drives to PSU that it has some load and then measured voltages 11.92V and 5.05V from third molex which seem to be stable. Nothing smells like burning inside and fan seems to be ok and quiet. Do I need to open the psu …

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Re: Can anyone recognize this 486 motherboard?

Posted on 2017-04-07, 15:12

by

by Baoran

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I bought it. In the end I got it real cheap. I paid $32 it and that includes shipping. If the motherboard isn't good, at least I get the memory modules and the cpu, so I don't think it was a big risk.

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Re: I recently found this hardware, AKA the Dumpster find thread.

Posted on 2017-04-07, 06:58

by

by Baoran

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

It probably depends on the manufacturer of the keyboard. I have an IBM keyboard from 1996 that doesn't have windows keys, but has the smaller ps/2 connector. That is why I thought the Keytronic keyboard would be older. ^^ I remember "windows" keys becoming pretty much ubiquitous shortly after w95 …

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Re: Can anyone recognize this 486 motherboard?

Posted on 2017-04-06, 19:55

by

by Baoran

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The seller doesn't seem to know much about the motherboard when I asked him earlier. He did say that the battery doesn't appear to be leaking and when I asked him about the cpu and what model the motherboard is, he just replied what text is on the cpu. A80486DX-33 L2526281 SX419

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Can anyone recognize this 486 motherboard?

Posted on 2017-04-06, 18:59

by

by Baoran

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I only have a very unclear picture of a 486 motherboard + cpu + ram that someone is selling for $35 5348489143.jpg Would anyone be able to recognize the motherboard from such a blurry picture? I know that the cpu is 33Mhz, but I would like to know if you could put any faster cpu on that motherboard …

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Re: I recently found this hardware, AKA the Dumpster find thread.

Posted on 2017-04-06, 18:36

by

by Baoran

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Would a late 90s keyboard have that big din connector instead of a ps/2 connector? All late 90s motherboards that I have seen have had ps/2 for keyboard. That Key Tronic board ought to be from the late 90s, if I'm finding things right (but Key Tronic has a ton of rather similar designs). It's a …

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Re: I recently found this hardware, AKA the Dumpster find thread.

Posted on 2017-04-06, 16:17

by

by Baoran

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I found this fully working Keytronic keyboard today. It was a good find for me because I didn't have a keyboard with an AT connector before. I only wiped most of the dust/dirt from the surface. I probably still need to clean it inside. 20170406_185656.jpg 20170406_185740.jpg Does anyone know how old …

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Re: Replacing my pentium 2 cpu fan.

Posted on 2017-04-05, 14:35

by

by Baoran

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The pins are at same level, but there are no holes for any screws for the fan. There is just those 4 holes where the pins go through the board to the metal part that you can see in the first picture of the cpu. Filename 20170405_171806.jpg File size 3.21 MiB Views 865 views

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Re: Replacing my pentium 2 cpu fan.

Posted on 2017-04-05, 09:34

by

by Baoran

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Today I got another pentium 2 cpu for free. It doesn't have any fan at all, so I am bit worried about putting it in the computer that doesn't have case fans. At least the heat sink in this seems to be easy to remove. Filename 20170405_121703_001.jpg File size 1.89 MiB Views 881 views

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