Re: Bought these (retro) hardware today

Posted on 2023-09-22, 21:10

by

by Nexxen

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Some serial and PS2 mice. The green ones are funny stuff. I looked up for the brand and it turns up it's a freebie for MDs. They actually are of good quality and inside it's solid, not those low weight budget ones.

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Re: Problem with old PC not booting anymore

Posted on 2023-09-22, 21:07

by

by Nexxen

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Try another video card? Otherwise it's reinstall time.

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Re: Problem with old PC not booting anymore

Posted on 2023-09-22, 13:28

by

by Nexxen

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Try in safe mode. Try a different video card.

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Re: Problem with old PC not booting anymore

Posted on 2023-09-22, 01:20

by

by Nexxen

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

To boot with one stick it needs to be in a certain slot. Use memtest and check them all. the "faulty" stick is removed, despite sometimes works fine if i move it a little bit. I'll try then for now to use one stick only, but can it be that with different amount of GB than before, can give such …

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Re: Problem with old PC not booting anymore

Posted on 2023-09-22, 00:21

by

by Nexxen

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

To boot with one stick it needs to be in a certain slot. Use memtest and check them all.

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Re: Biostar G31-M7 TE : more issues (repair thread)

Posted on 2023-09-19, 16:29

by

by Nexxen

in Milliways

in Milliways

Tonight I soldered a P75+P09 couple to test the board. I tested after soldering and it didn't shut down the PSU. I went ahead and soldered the other 2 couples. Checked and they were shorting to ground. Didn't even connect it to the PSU. Maybe it's the soldering temperature... IDK I'm calling it as …

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Re: ABC COMPUTER COMPANY, LTD. A3286 / A3886-01 V3.0 - repair thread

Posted on 2023-09-18, 14:13

by

by Nexxen

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I tested all the tantalums that I desoldered. A few have above 10 ohms ESR, I guess that's not good. The others have 0.x, I believe this to be the correct value. One actually broke as soon as I removed it, it had cracks and it just fell apart. This is new :) Another had a lead come out, as it had no …

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Re: Biostar G31-M7 TE : more issues (repair thread)

Posted on 2023-09-18, 01:47

by

by Nexxen

in Milliways

in Milliways

Tonight I soldered a P75+P09 couple to test the board. I tested after soldering and it didn't shut down the PSU. I went ahead and soldered the other 2 couples. Checked and they were shorting to ground. Didn't even connect it to the PSU. Maybe it's the soldering temperature... IDK I'm calling it as …

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Re: ABC COMPUTER COMPANY, LTD. A3286 / A3886-01 V3.0 - repair thread

Posted on 2023-09-17, 03:01

by

by Nexxen

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Of 4, 3 are 1N4148. Need id of this diode, the white one: Edit: from another source I found the same diode with markings on. It appears to be a germanium diode, 1N34A. It looks okay (see pic).

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Re: ABC COMPUTER COMPANY, LTD. A3286 / A3886-01 V3.0 - repair thread

Posted on 2023-09-16, 20:54

by

by Nexxen

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

or for the price of chemicals you could buy brand new [1pcs] VL82C331-FC Bus Controller QFP160 US $8.15 from Poland. Too easy. Won't fit. LOL My point is to learn from this. And I already have the stuff, no expenses. Are you sure it still works the VLSI? Internally I hope so, I couldn't test it as …

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Re: ABC COMPUTER COMPANY, LTD. A3286 / A3886-01 V3.0 - repair thread

Posted on 2023-09-16, 14:01

by

by Nexxen

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

After job pics. Old solder was rotten to the core and wasn't easy to remove. I even saw a few small 0.45 like solder balls float around, like if the initial solder job at the factory wasn't that successful. Next is to desolder the diodes and maybe replace those as well. Ferrite beads are ok. Quick …

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Re: ABC COMPUTER COMPANY, LTD. A3286 / A3886-01 V3.0 - repair thread

Posted on 2023-09-15, 13:47

by

by Nexxen

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

While I was putting solder mask I came across a few more issues, the LM358 and some caps + res came off. At a glance they look soldered and poking doesn't make them come off. Handling the board I hit some and then they came off clean ripping the contacts, and on those tiny 1206 it's simply …

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Re: Unmarked socket 370 motherboard

Posted on 2023-09-15, 12:09

by

by Nexxen

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

While that Fortemedia soundchip isn't really what I'd call quality, Shuttle's AT implementation of 370 is far better than most PCChips mainboards. I wonder if the HOT-685 doesn't support Coppermines with some modding. That was from my experience with 3 Shuttle boards, they all sucked on capacitors' …

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Re: Unmarked socket 370 motherboard

Posted on 2023-09-15, 11:19

by

by Nexxen

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

What I'd check would be the caps. Those are 20+ years old caps. Nope, that's 20+ years of LOW QUALITY caps... nuance there not negligeable :) This is PCChips level, good it didn't blow in his face straight off. While that Fortemedia soundchip isn't really what I'd call quality, Shuttle's AT …

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Re: ABC COMPUTER COMPANY, LTD. A3286 / A3886-01 V3.0 - repair thread

Posted on 2023-09-15, 02:53

by

by Nexxen

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Wires solder masked, anchored and let(s hope it'll work.

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Re: Unmarked socket 370 motherboard

Posted on 2023-09-14, 22:25

by

by Nexxen

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

PcBytes wrote on 2023-09-14, 22:03: What I'd check would be the caps. Those are 20+ years old caps. Nope, that's 20+ years of LOW QUALITY caps... nuance there not negligeable 😀 This is PCChips level, good it didn't blow in his face straight off.

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Re: Unmarked socket 370 motherboard

Posted on 2023-09-14, 01:23

by

by Nexxen

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

My take would be that one RAM slot has issues, and when you use the other then you get as far as an issue with the video card. So I'd leave it in the slot where you get one long and three short, then try a PCI video card. From ram to video, that's progress! :) Yes, PCI card if he has one. I think …

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Re: ABC COMPUTER COMPANY, LTD. A3286 / A3886-01 V3.0 - repair thread

Posted on 2023-09-14, 01:15

by

by Nexxen

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I rebuilt traces/pads. Now I need to anchor them. Some with solder mask others probably epoxy. IDK

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Re: Found in my spare parts box: AMD Slot A K7 1000 - AMD-K7100MNR53B A

Posted on 2023-09-13, 15:53

by

by Nexxen

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Yeah, I saw that it was the first 1ghz, and fastest slot a, but I figured maybe like 50/75 bucks, some higher than the 600 and 700 for example. And is it completed as in sold? Or just ended? Don't listen to him! Your CPU is (maybe) worth $20! And me, being a good samaritan, I'm willing to buy it …

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Re: Unmarked socket 370 motherboard

Posted on 2023-09-13, 15:42

by

by Nexxen

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

https://theretroweb.com/motherboards/s/shuttle-hot-685 It should be sporting an Intel chipset if the silkscreen is correct (440BX) Model on yours is 685V12A, probably not relevant but it's close enough. Beeps should be ram related, reseat ram stick if no go clean with some deoxit (contact cleaner) …

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