Lenovo J SERIES 3000 - Manual (Page 76)

7 VGA monitor connector 15 PCI Express x1 or PCI Express x16 adapter connector (some
models)
8 USB connectors 16 PCI adapter connectors
Removing the covers
Important
Read Chapter 2 “Safety information” on page 3 and “Handling electrostatic discharge-sensitive devices” on
page 5 before opening the cover.
Some FRU replacements require the removal of only the left-side cover. Others require removal of both
the left-side and the right-side covers.
1. Shut down the operating system, remove any media (DVDs, CDs, or tapes) from the drives, and turn off
all attached devices.
2. Unplug all power cords from electrical outlets.
3. Disconnect all cables attached to the computer. This includes power cords, input/output (I/O) cables,
and any other cables that are connected to the computer.
4. Remove the two thumb screws at the rear of the left-side cover and slide the cover to the rear to remove.
5. If necessary, remove the right-side cover in the same manner.
Locations
The following illustration will help you locate the major FRUs in the computer.
70 Hardware Maintenance Manual Lenovo 3000 J Series