Re: Osborne 1 - Resurrection
Come on! Let us proceed, there is still a lot of work to do, and a lot of pictures left!
Step 4: The underground
The Osborne 1 has two floors, and I have put the power supply unit and the hard drive in the lower one .
Step 5: The upper level
A small mainboard is found, because space is narrow.
The fan, which blows the air out:
This is close-fitting:
Step 6: Modding the front
The front-fan needs a grill, silver inside, black painted outside.
The DVD-cover is made of black cardboard. Sorry, but I have not had something better at that time. It was very important to build in a slot-in drive, because the 5 inch disk drives of the 80ies have not had a drawer like optical drives nowadays.
The DVD-drive-busy-LED needs a new position:
On/off switch...:
...and the connector to the mainboard.
Re: Osborne 1 - Resurrection
Step 7: Modding the front interfaces
The front is removable and it would be perfect to mount the interfaces on a batten (right expression?), which is fixed inside. But because of space problems, the batten is screwed on the front.
Elongation of VGA-cable...
...and audio. Almost every connection from the mainboard is repositioned to the front.
Features: 3 USB, 1 VGA-out, audio-out, mic-in, TV-out
Step 8: Assembly
Test before installing Windows:
Everything finished:
After three hours of program installations the PC ran silent and everything looked fine. I slept like a log in that night. The next day I started the osborne again, but ... what was that? Klickklack ... klickklack ... klickklack ... klickklack ...
Re: Osborne 1 - Resurrection
Sweeet work, great comparison of old vs new parts.
I am a big fan of making old systems work with new parts, great work so far! Check Tesco Offers and Lidl Offers.
Welcome to the boards and btw, your english is about 1000 times better than my German! Keep it up!
Re: Osborne 1 - Resurrection
Many thanks, I appreciate that! :up:
But I have to go on with my story, which is long, very long. I hope you have the endurance to hang on.
Back to klickklack.
This is a 80 GB exhibit:
But why did it die? :think:
The heat is bearing the blame! This is the result after measuring the tempertures: PSU - 60 degrees Celsius, the hard disk - 56 degrees, CPU - about 50 degrees. This is definitely to much! :eek:
Step 9: Improvement
After buying a new hard drive, I inserted a few more fans. Two 4cm-fans sucking hot air away from the hdd and one 6cm-fan blowing fresh air inside, nearby the PSU. I misused the two boxes in the front. Usually you can store your 5inch-disks there (it is still possible), but now they are air ducts.
Argh, the tests have not shown much better temperatures than before. This is one of those moments ... :dead:
Step 10: Improvement #2
I reversed the airflow direction and inserted more fans! Instead of two 4cm-fans blows one 8cm-fan, which is only 15mm thick, fresh air directly on to the hard drive. The remaining holes have been covered. On the other side are now two 6cm-fans, which suck worm air from the PSU to outside.
No air holdup anymore, this is the key fan:
The same reversion on the upper floor! Front fan blowing fresh air over graphics card, the grill has been modified and in the upper cap are two 6cm-fans blowing warm air outside.
Thinner CPU-fan leads to more space to the cap.
Re: Osborne 1 - Resurrection
Excellent job. In addition, if you install Vista, you could rig up that tft for sideshow. Snazzy. Let's see some fully finished multi-angle glamor shots.
whoops, thought you were done. nm
Re: Osborne 1 - Resurrection
Step 10: Final test
Temperatures: PSU - 35 degrees, HDD - room temperature, CPU - about 44 degrees. Perfect! Ready for continuous duty. Ok, the PC is explicit hearable, but it is cheaper not to buy a hard disk every week.
We have picture on 28"-TV and on the 5"-TFT:
Thank you very much for your attention! 8)
Re: Osborne 1 - Resurrection
i like how you tried to keep everthing original +rep.
Re: Osborne 1 - Resurrection
Very cool man, very cool. +rep.
Re: Osborne 1 - Resurrection
dude, this was a beautiful work, it was perfect, and it didn't lose old Osborne's characteristics. congratulations :up: