Lenovo ThinkCentre M90 Hardware Maintenance Manual page 131

Figure 65. Removing the internal speaker
8. Remove the attached thermal sensor cable from the old internal speaker and install it on the new
internal speaker.
9. Insert the two tabs 2
chassis, and push the speaker straight down until the other two tabs
.
Chapter 9 Replacing FRUs (Machine types: 3026, 3039, 3137, 3149, 3245, 3269, 3319, 3394, 3491, 3627, 3699, 3878,
on the bottom of the new internal speaker into the corresponding holes in the
4972, 5132, 5261, 5297, 5391, 5472, 5485, 5536, 5548, 5567, 5864, and 6213.)
1 snap into position.
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