HP Pavilion t350.uk Desktop PC - Manual (Page 147)

upgrading and servicing the pc (2) 139
closing the computer
After you have finished installing memory or drives, inserting or replacing
add-in cards, or changing the battery, you need to replace the drive cage, the
fan duct and the side panel.
replacing the drive cage
1 Holding the drive cage at a 45-degree angle, slide the two nubs (A) on the
drive cage into the guides (B) on the chassis.
A
B
NOTE: The second nub (A) is on the other side of the drive cage (not
pictured).