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<p>Wanting to reconfigure the s/w to a linux version needed the
UEFI/CMOS password. <br>
To reset the password I wanted to remove the coin battery. <br>
It is well hidden, on bottom of the mother board. <br>
<br>
This voided any warranty so did at my own disk. <br>
May have made a brick if not careful. <br>
Not for the fainthearted or probably anyone not experienced.
Scared me and I'm fearless. <br>
Just something I did to pass the retirement time, can't always do
genealogy. <br>
<br>
First photo. Remembering to use static sensitive procedures, I
pretty much did this. <br>
<br>
Unplugged all connectors and placed the unit face down and remove
the 4 screws. <br>
Using 2 small screwdrivers carefully separated the back cover. <br>
Inserting one a bit and turning clockwise generated a click, which
is a release. <br>
Used the second one to keep the plastic separated, moving along
with the first. <br>
Started at the bottom of the unit and worked around. <br>
<br>
Carefully peeled back some of the foil and cloth tape from the
metal plate under the green board. Red circles. <br>
Unplugged the connector from that board. Blue circle. <br>
Removed 7 screws, most labeled 1-M2, 2-M2, etc. Green circles. <br>
Carefully removed the plate. <br>
<br>
Second photo, I. <br>
<br>
Removed 5 screws. Green circles (not the one with the arrow yet).
<br>
Spread the black fins and only loosened these 2 screws. Rose
circles. <br>
Loosened the 5 heat sink screws. Blue circles. <br>
lifted the heat sink and removed the last screw where green arrow
points. <br>
Put on some thermal paste and tightened only 4 of the 5 heat sink
screws. <br>
<br>
Gently lifted tape. Tricky to get the tape free. Red circle. <br>
Gently used finger nails to pull black lock strip towards board
edge and unplugged ribbon cable. Blue arrows. <br>
<br>
Lifted board, moving cable (in white circle) and removed the coin
battery for a while. <br>
<br>
Replaced the battery. <br>
Replaced the main board, but not the metal plate. <br>
Powered up and used F2 to change the password. May have needed to
do this twice. <br>
(Found if I powered up and got a white screen I didn't have the
ribbon cable in.) <br>
Cycled power a few times to test the new password worked. <br>
Replace the metal plate, connected it's board and retested. <br>
<br>
Then closed it up. <br>
<br>
Found the SATA configuration had to be correct to match the HD to
allow s/w to boot fully. <br>
<br>
Changing the hard drive would be rather easy. <br>
</p>
<pre class="moz-signature" cols="80">--
R. W. (Bob) Neeper
(Retired Toledo Scale Engineer & Library Computer Guy)
<a class="moz-txt-link-abbreviated" href="mailto:neeperro@gmail.com">neeperro@gmail.com</a>
Doing Genealogy at:
Community Library
Sunbury, Ohio
<img src="cid:part2.0D5E5DAC.DDED2B45@gmail.com" alt="">
<img src="cid:part3.63F0705F.11A2C2E1@gmail.com" alt=""></pre>
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