IBM 6341 - Manual (Page 35)

Locating components - small desktop model
The following illustration will help you locate the various components in your
computer.
1 Power supply 5 DIMM
2 PCI slot 6 Hard disk drive
3 System board 7 CD drive or DVD drive
4 Microprocessor and heat sink 8 Diskette drive
Identifying parts on the system board - small desktop model
The system board, also called the planar or motherboard, is the main circuit board in
your computer. It provides basic computer functions and supports a variety of
devices that are IBM-installed or that you can install later.
Chapter 4. Installing Options 27