Dell OptiPlex JK523 Quick Reference Manual page 26

1 fan connector (FAN)
2 processor connector (CPU)
3 processor power connector (12VPOWER)
4 front-panel connector (FNT_PANEL)
5 memory module connectors (DIMM_1,
DIMM_2)
6 SATA drive connectors (SATA0, SATA1)
7 power connector (POWER)
8 CD/DVD drive connector (IDE)
9 SATA drive connectors (SATA2, SATA3)
Jumper Settings
Mini Tower Computer
26
Quick Reference Guide
10 internal buzzer (SPKR1)
11 password jumper (PSWD)
12 real time clock reset jumper (RTCRST)
13 battery socket (BATT)
14 PCI Express x16 card connector
15 PCI card connectors (2)
16 floppy drive connector (FLOPPY)
17 serial/ PS/2 connector (PS2/SER2)