Dell Dimension 2100 System Reference Manual page 5

1 Microprocessor connector (J5H1)
2 Memory sockets (BANKn)
3 Fan connector (J3J1)
4 3.3-V power connector (OPTIONAL
POWER)
5 Secondary IDE channel connector (SEC
IDE)
6 Control panel connector (J9F2)
7 Floppy drive interface connector
(FLOPPY)
8 Primary IDE channel connector (PRI IDE)
9 Power input connector (POWER)
10 Battery socket (BATTERY)
11 Wakeup On LAN connector (WOL)
System Board Configuration Jumper
NOTE: The red dot in the jumper denotes pin 1.
Jumper
Setting Jumper
Pins 1-2
jumpered
(Normal
Description
In Normal mode, system setup settings and
installed passwords are retained when the
computer starts up. In this mode, an automatic
12 Speaker (LS9A1)
13 Configuration jumper
14 Power light
15 Card connectors (natural color) (PCIn)
16 Serial connector (COM1)
17 Parallel connector; sometimes referred to
as LPT1 (PARALLEL)
18 Video connector (VIDEO)
19 USB connectors (USBn)
20 Mouse connector (MOUSE)
21 Keyboard connector (KEYBD)
(J7A1)