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quinta-feira, 29 de janeiro de 2015

Hardware testing session

I have recently assembled two mahines out of my electronics "garbage". The Osicom Gold 486 (this one has most of the original hardware) and a Generic Win98 era machine - a Pentium // 400Mhz.
In this session I used an old MS-DOS based diagnostics software (PC Diagnostics '95) to test both computers. All went good, but the pentium// needs a new CMOS battery.
Also, the 400MB HDD from the 486 sometimes has trouble to wake up! :/

The 486DX33 Osicom Desktop computer, working like a tower in this case to save space. I removed the stickers to apply retr0bright sometime soon.

Win98 bootdisk

PC Diagnostics 95 - Summary screen

Some CPU tests

The "failed" on the motherboard test was the PS/2 mouse. It wasn't connected.

All fine with the keyboard controler.

Direct Memory Addres controlers

Testing base memory

The extended memory. This system has an odd 20MB RAM. (16+4)

Testing Cache memory

I don't have an LPT loopback connector. It obviosly failed this test. That's fine!

Same for de serial ports.

Disk Controllers

Floppy

IRQ table. I can see IRQ11 on the network card. That will be useful!

The lazy Maxtor HDD passed all the tests! humm...

Network Card

Memory Map

The integrated Cirrus Logic Card. Only 512KB VRAM. That explains why I can't run WinNT3.1 at 800x600 256colors I guess! :(

Adicionar legenda

All Ok!! Lets go to Windows now! Booting...


Very important to password protect this dinossaur! LOL

This is how I used to arrange my desktop back in the early 90's! :D I used Windows 3.1 though!
The Pentium 2 - 400Mhz - In a Suprides Tower case from the late 90's. This one is in very good shape and color.


This software only detects 64MB of RAM. I guess it's to old. The computer has 192MB. The Bios detects them and Memtest86+ approves them!

All good with the MB!

The Bios is from 1999 - I don't know if it was updated somewhere in time or not.



The network card has no IRQ assigned to it. Got to fix that.

Memory Map

The graphics card is a Matrox Productiva G100


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