Re: Bought these (retro) hardware today

Posted on 2021-06-25, 17:44

by

by dataino.it

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

SteveC wrote on 2021-06-25, 09:56: I'm on an IBM PS/2 buying spree - seller's photo 😀 It doesn't work but hey that's half the fun eh? Beautiful, complete with everything, no more than 300 euros

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Re: Bought these (retro) hardware today

Posted on 2021-06-23, 15:52

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by dataino.it

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The latest arrival .. ASEM DESK 3021 Onboard EGA + serial + printer

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Re: Dead Asus P3C-E?

Posted on 2021-06-23, 12:58

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by dataino.it

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Do you have the tools to check for the presence of clocks on the oscillators?

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Re: Checking unexpected interrupt and stuck NMI - Failed - ASEM THOR 8050 - Restoration ....

Posted on 2021-06-22, 18:43

by

by dataino.it

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

PSU ready for recap

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Re: Checking unexpected interrupt and stuck NMI - Failed

Posted on 2021-06-22, 18:42

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by dataino.it

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Doornkaat wrote on 2021-06-22, 10:47: That PC looks seriously awesome! It is fantastic apart from the frightening weight, it has a particular design with the power supply in view and the connections at the top .. When I saw him in the picture in the midst of various computer junk it took me a while …

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Re: Checking unexpected interrupt and stuck NMI - Failed

Posted on 2021-06-21, 21:43

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by dataino.it

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

This was the first step, to fix and restore my 286 "ASEM THOR" which weighs about 20KG The next step will test the power supply. Who meanwhile took a bath ..

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Re: Checking unexpected interrupt and stuck NMI - Failed

Posted on 2021-06-21, 21:37

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by dataino.it

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

At the and I fixed it but it was a struggle. After removing all the chips the quartz and replacing a part of the capacitors. I made other measurements and concluded that there was no short on the 5V. Too bad that after having reassembled everything the situation got worse and the card started but …

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Re: Checking unexpected interrupt and stuck NMI - Failed

Posted on 2021-06-20, 19:40

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by dataino.it

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Well I checked the connections from the 74ALS245 lead to the various chips and everything is ok. Since I have two identical motherboards, I started a parallel measurement of the various pins with respect to the ground, and I immediately realized that the problem is much more complex, since the board …

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Re: Need help reviving this Socket 7 Motherboard

Posted on 2021-06-20, 19:34

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by dataino.it

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Great !!

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Checking unexpected interrupt and stuck NMI - Failed - ASEM THOR 8050 - Restoration ....

Posted on 2021-06-18, 20:06

by

by dataino.it

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I have the twin of this motherboard http://www.win3x.org/uh19/motherboard/show/8225 , which I revived after countless problems caused by the loss of battery acid. I am left with a mysterious start-up error "checking unexpected interrupt and stuck nmi" but I don't know if it is related to the real …

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Re: Need help reviving this Socket 7 Motherboard

Posted on 2021-06-10, 08:02

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by dataino.it

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

It is a procedure that I use when I repair the cards, it often happens that a chip or a component has bad soldering. Yesterday with this method I found the faulty clock capacitor on this card that in the pc worked once and 3 no.

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Re: Need help reviving this Socket 7 Motherboard

Posted on 2021-06-10, 05:35

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by dataino.it

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Try turning on the card by squeezing the card chips one at a time. as I do in this video http://www.dataino.it/vogons/video/20210601_221857.mp4

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Re: Bought these (retro) hardware today

Posted on 2021-06-07, 21:21

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by dataino.it

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Some purchases I gots an Aopen AX6... most boring Slot 1 board ever. Just runs. Not remarkably fast, not remarkably slow, supports what it says it supports. If you put a water cooling system on it, it would turn the coolant into chamomile tea. It's my card then !! I don't like slow things or fast …

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Re: Bought these (retro) hardware today

Posted on 2021-06-07, 18:33

by

by dataino.it

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Some purchases

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Re: How to finish DOS?

Posted on 2021-06-06, 12:49

by

by dataino.it

in Marvin \ Software

in Marvin \ Software

EDIT autoexec.bat add at the end c:\windows\win

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Re: Bought these (retro) hardware today

Posted on 2021-06-04, 23:37

by

by dataino.it

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Gigabyte GA-8TX Socket 423 + CPU Pentium 4 1,5 GHz + 128mb ram

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Re: Best most modern motherboard for Windows XP?

Posted on 2021-06-03, 21:04

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by dataino.it

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

You can add a PCI LPT port for max 3 Euro for the performance see the CPU supported , https://www.cpu-upgrade.com/mb-Intel/DG43NB.html i installed a Quad-core X3220 for 10 euro and runs very well with windows 7 But now i came back to windows XP . ( found on archive.org the original driver https:// …

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Re: Best most modern motherboard for Windows XP?

Posted on 2021-06-03, 17:58

by

by dataino.it

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Why not a Intel Desktop Board DG43NB ? I have this board and installed XP, Windows 7 e 10 whit no problem. CPU SUPPORT https://www.cpu-upgrade.com/mb-Intel/DG43NB.html Feature Summary Form Factor ATX (294.64 millimeters [11.60 inches] x 243.84 millimeters [9.60 inches]) Processor Support for an …

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Re: 486 no keyboard found, only PC speaker beep

Posted on 2021-06-03, 09:27

by

by dataino.it

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

No resistente can be measured and Is 0 . It Is infinite fuse Is broker and Need replace

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Re: AQUARIUS SYSTEMS, INC. A10001 - Does not want to read from the floppy

Posted on 2021-05-30, 21:22

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by dataino.it

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The signal voltage for me is good - 5v The duration is OK ? 8ms is pretty long, no single DMA transaction should take anywhere near this long. When you said it's a short pulse I though it was some 10 or so nanoseconds. I think it might be timing out now. I see you have some sort of logic analyzer? …

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