IBM PC 300GL - Manual (Page 22)

Chapter 2. System board features 15
Rocker switches
The two rocker switches on the system board are used for custom configuration. For
the location of the small and large rocker switches, see items 12 and 13 above.
The large rocker switch has eight switches for setting microprocessor speeds for
compatibility with the system board. The following table shows the rocker switch
settings for compatibility with the corresponding microprocessor speeds.
1 Microprocessor 13 Small rocker switch
2 DIMM 0 14 Battery
3 DIMM 1 15 Chassis intrusion detection connector
4 Fan connector 16 Wake on LAN connector
5 Power connector 17 Alert on LAN connector
6 Switch/LED connector 18 CD-ROM, CD-RW, or DVD drive connector
7 RFID connector (some models) 19 PCI adapter slot 1
8 Primary EIDE connector 20 PCI adapter slot 2
9 Secondary EIDE connector 21 PCI adapter slot 3 (for Alert on LAN adapter)
10 Diskette drive connector 22 Chassis speaker connector
11 Fan connector 23 AGP adapter slot
12 Large rocker switch (some models)