[28 September 2020] The system,
as I received it, would power on but the CPU fan
cranks up to maximum. The screen
can be used as a screen, and
it's a good size, but the CPU
fan persists unless the system
is opened up and the CPU removed
and fan disconnected.
- Try a replacement CPU
- Replace the BIOS Chip
tried a replacement CPU in
case that was the fault, but
that made no difference.
Alternatively I considered it
was a BIOS issue. This is soldered in
place so not a simple fix for
These systems seem to have a
good following in Russia where
some with the skills and
knowledge have done a better job
of diagnosing their technical
issues like these, but I barely
understand their processes (even
- Replace the CPU: tried,
- Replace the BIOS Chip:
- Use the system as a screen:
I have tried this but the CPU fan needs to be disconnected due
to the fault causing it to spin at 100% all the time
- Sell the system on ebay as
- - - - -
[23 October 2020] I received a
replacement BIOS chip from the Netherlands and proceeded to
unsolder the original and replace it.
The process went well. I had to
first remove a heatsink off a nearby chip (pressing down on the
hooks and gently rotating the heatsink).
I then worked carefully with
magnification and took my time to remove the original BIOS chip
using my soldering iron and liquid flux; this was the trickiest part of the procedure
since it takes some heat but you don't want to use too much. I
have learned from experience that this can either damage nearby
components, the solder pads which are held in place with adhesive,
or the board.
Once removed I prepared the pads,
applying a gentle dose of fresh solder.
I then sat the replacement chip in
place and then a little more heat to each of the feet softened the
solder and fixed it in place.
At first when I tried to test the
system it wouldn't power on at all. Had I done more damage? I
I tested it again the next day just
in case the situation had changed... it had. The system powered
on... but sadly it was just like before; the fan would go to
maximum and nothing else would happen.
[The Conclusion...or so I thought] I re-assembled
the system and concluded that there is some other issue with the
main-board and proceeded to sell it as spares/repairs since it
could be used as a
monitor (if the CPU fan is disconnected).