A more difficult to access connection point
Once you have your HMM search the manual for
"Removing and replacing a FRU" then scroll down to 1050
Keyboard, it's on Page 82 of the manual, follow the
instructions in the manual to lift up the keyboard, leave it plugged in just
move it forward toward you to reveal the connection points.
You may have to remove the DIMM Standard, see page
87 of the manual 1070 DIMM (standard),
Under the DIMM you should now be able to see
the LSI, see photos
below.
The connections we will use are near the LSI, just
under the RAM module if one is fitted.
You will need to have some RAM in the R52 for
use later when we switch it ON, no don't switch it ON now, later OK.
If there is no RAM in the other DIMM slot, the
one underneath the R52, then you will need to remove the RAM from above and install it in the optional DIMM socket underneath the R52.
That other DIMM socket is lustrated on page
81 of the manual, 1040 DIMM (optional), undo the single screw on the cover to
gain access.
If there is already RAM installed in the other
DIMM socket underneath the R52 then you can just leave it there.
If there is no RAM installed in the other DIMM
socket underneath the R52 then remove the RAM from under the keyboard and
install it in the DIMM socket underneath the R52, later when all the work is
done reverse the procedure.
The RAM is held by 2 clips one on each side, page
81 of the manual, 1040 DIMM (optional) illustrates how to remove
replace DIMM
Use one finer nail on the end of each clip to
pull the clip aside
DON'T BEND THEM, just pull it out sideways just
enough so the RAM pops up, then you can remove it.
You must pull both clips at the same
time,
use one finger from one hand to pull on one
clip
and a finger from your other hand to pull on the other clip AT THE SAME TIME
and the RAM will pop up ready to be removed.
To install RAM into a DIMM socket start with
the RAM at angle of 45 degrees to the board [note the RAM can only go in
one way there is a key slot that is not in the middle, it only fits one way].
Holding the RAM at 45 degrees to the board
insert the RAM into the socket, make sure it is in all the way, if it wont
go in don't force it, turn it over till the key slot matches the socket.
Hold it into the socket and slowly fold it down flat until the two clips
snap over it to lock it in place.
