Re: 386 not booting (no POST or beeps), battery leaked on my childhood hero

Posted on 2024-04-16, 07:36

by

by Doigan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

jasposiris wrote on 2024-04-15, 22:57: (please send me your email address in pm since I can't yet send answers to pm messages because my account is too new ...) Gotcha! ☺️

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Re: 386 not booting (no POST or beeps), battery leaked on my childhood hero

Posted on 2024-04-15, 15:15

by

by Doigan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

jasposiris wrote on 2024-04-15, 14:43: I'm gonna solder a lithium pram battery and varnish some parts of the pcb, and then Doigan I should be able to send it to you. Could you send me your address? That is great news! It looks like you have done some really good progress 😁 I'm very happy. I will …

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Re: 386 not booting (no POST or beeps), battery leaked on my childhood hero

Posted on 2024-04-12, 07:34

by

by Doigan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

jasposiris wrote on 2024-04-11, 21:45: Quick update (but I'll explain more in details later): I was able to make it boot! And yes it is a copam motherboard yet unregistered on the retro web! This is such great news! So happy about this 😁

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Re: 386 not booting (no POST or beeps), battery leaked on my childhood hero

Posted on 2024-03-31, 18:41

by

by Doigan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Actually I will be pleased to offer it to you ! I'll keep you updated on my attempts to make it work and worst case scenario would send it to you unrepaired.. Next steps: fpm ram, replace pram battery and check for damaged traces... Thank you so much! This means a lot to me. I have searched long …

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Re: 386 not booting (no POST or beeps), battery leaked on my childhood hero

Posted on 2024-03-31, 18:11

by

by Doigan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thanks a lot! Here is pics of my motherboard which is not booting.. 386sx 20, ram 72pin edo, trident 8900c VGA chipset and acc micro 2036 chipset. Yet I only have 3 long beeps when there is no ram, but nothing on the screen unfortunately..IMG_20240330_213731.jpg. Wow! That sure looks to be the very …

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Re: 386 not booting (no POST or beeps), battery leaked on my childhood hero

Posted on 2024-03-31, 17:36

by

by Doigan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thanks a lot! Here is pics of my motherboard which is not booting.. 386sx 20, ram 72pin edo, trident 8900c VGA chipset and acc micro 2036 chipset. Yet I only have 3 long beeps when there is no ram, but nothing on the screen unfortunately..IMG_20240330_213731.jpg. Wow! That sure looks to be the very …

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Re: 386 not booting (no POST or beeps), battery leaked on my childhood hero

Posted on 2024-03-31, 17:22

by

by Doigan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thanks a lot! Here is pics of my motherboard which is not booting.. 386sx 20, ram 72pin edo, trident 8900c VGA chipset and acc micro 2036 chipset. Yet I only have 3 long beeps when there is no ram, but nothing on the screen unfortunately..IMG_20240330_213731.jpg. Wow! That sure looks to be the very …

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Re: 386 not booting (no POST or beeps), battery leaked on my childhood hero

Posted on 2024-03-31, 11:15

by

by Doigan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi @doigan It seems I have the same motherboard. Do you have any info or photo of the whole computer so that I would where it is coming from... Also did you manage to repair it finally? Best regards Hello @jasposiris Thank you for your post, I do have more information about this computer. It's an …

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Re: Compaq Prolinea 4/66 bay rails (5 1/4) + manual

Posted on 2022-03-24, 07:24

by

by Doigan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi! I bought a new machine today and I noticed that it was missing the rails for the 5 1/4 bay - anyone know what they look like? I did find what looks to be new rails on ebay but i'm not sure if they match the 4/66 and what they should look like. Also, does anyone have the manual for the machine? …

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Compaq Prolinea 4/66 bay rails (5 1/4) + manual

Posted on 2022-03-23, 17:19

by

by Doigan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi! I bought a new machine today and I noticed that it was missing the rails for the 5 1/4 bay - anyone know what they look like? I did find what looks to be new rails on ebay but i'm not sure if they match the 4/66 and what they should look like. Also, does anyone have the manual for the machine? …

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Re: IBM 2144 Desktop Speakers PSU

Posted on 2022-02-21, 18:09

by

by Doigan

in Marvin \ Sound

in Marvin \ Sound

Try the EFISH DC 12V 2A 24W, its a 12v psu with only 24 Watt and plenty headconnectors to try. It shouldnt break the speakers. You can get it from Amazon and refund in the case it wont work. If youre from the US Belker offers something similar for US Customers Try "12v dc power supply" Amazon …

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IBM 2144 Desktop Speakers PSU

Posted on 2022-02-20, 09:29

by

by Doigan

in Marvin \ Sound

in Marvin \ Sound

Hello! I recently bought these speakers and they are missing the power supply. Does anyone know what specs can be used as an modern replacement? Polarity, wattage and amparage, any tips? Never done an replacement like this before and the only info is 12V DC.

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Re: 386 not booting (no POST or beeps), battery leaked on my childhood hero

Posted on 2021-12-04, 09:22

by

by Doigan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Predator99 wrote on 2021-12-03, 21:18: Here you get an idea what needs to be done 😁 Re: The bet. Can a card in this state be repaired? This is actually a very good post! Even though mine is not near that bad I get the idea on how to move forward 😀

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Re: 386 not booting (no POST or beeps), battery leaked on my childhood hero

Posted on 2021-12-04, 09:21

by

by Doigan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I think that needs the vinegar treatment, there's corrosion all around and that small traces that have a dark colour look bad, scrap the varnish and check then. What would be the best procedure for this, can I submerge the motherboard in vinegar or should I desolder as much as possible and just …

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Re: 386 not booting (no POST or beeps), battery leaked on my childhood hero

Posted on 2021-12-04, 09:20

by

by Doigan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thanks for all the messages! :) I did get a ISA POST card to see if it would show anything but it only shows "- - - -" on the displays, no beeping from the piezo speaker either. The LEDS for voltages on the card do light up though, all of them and I could get voltages on chips/cpu etc on the …

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Re: 386 not booting (no POST or beeps), battery leaked on my childhood hero

Posted on 2021-12-03, 14:41

by

by Doigan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Quick update, I did measure some pins on the CPU, BIOS and ISA and I could get voltages on the pins i tried out - any ideas on something that might fail or be needed in order to startup?

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Re: 386 not booting (no POST or beeps), battery leaked on my childhood hero

Posted on 2021-12-03, 14:10

by

by Doigan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I'd verify the voltages that get output from the psu. you'll need to see around... 12V 5V -5V and -12V, red yellow, blue and white... or was it white and blue? meh. I've seen computers that won't boot without a battery, though, most pc compatibles tend to boot without a battery if all other …

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Re: 386 not booting (no POST or beeps), battery leaked on my childhood hero

Posted on 2021-12-03, 14:05

by

by Doigan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Explanation of the images, First image is a closeup of the chip that is above the ISA slot in the third image. I tested all of the pinouts on the side facing ISA and they all connect to vias on the other side of the ISA and they all have continuation. The second image is from the same area as the …

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386 not booting (no POST or beeps), battery leaked on my childhood hero

Posted on 2021-12-03, 13:59

by

by Doigan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hello! I picked up my old 386SX that I had when I was a kid from my parents and opening it up revealed that the Varta battery had leaked and the computer was not booting at all. I removed the battery and started cleaning the leakage with vinegar and afterwards with some IPA where I could see it was …

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Re: SD to IDE adapter with ASUS P2B not detecting

Posted on 2017-12-20, 16:53

by

by Doigan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

So I got it to work! I changed the IDE cable to another one, strange is that the IDE cable that did not work with the SD to IDE adapter worked on the normal IDE drive, any suggestion why that is? 😳

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