Sanyo MBC-550 Series User Manual page 299

7) Place all the pins of the chip on one side of the
socket and gently push in as far as possible. Push the
other side down till you hear a click. Be careful not
to break the pins. If you have trouble, please consult
an authorized Sanyo computer dealer.
8) After you have placed seven chip in column B and
one chip in the last socket of column A, replace the
board and connect the plugs.
9) Check to make sure everything is secure before you
replace the cabinet cover.
10) Restore power to your unit.
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