Flex Disc options for the HP 9825
hp-fix at xs4all.nl
Sat Aug 13 04:37:09 CDT 2016
For what it's worth a small warning about the HP 9825 series computers.
The power supply doesn't have a crowbar(over voltage protection), so a
transistor failure in the Psu can be catastrophic.
On the other hand the two 9835's I have, which uses the same form factor and
almost the same power supply layout are HP modified with crowbars added.
It seems to be good practice to add some ov-protection to the HP 9825 supply
because the switching transistor and 723 voltage regulators don't have the
And there no certain prediction in how they fail, short or open circuit, I
found out the hard way several years ago.
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