Dell OptiPlex 755 - Manual (Page 47)

Quick Reference Guide
47
Jumper Settings
1 internal speaker connector
(INT_SPKR) 12 RTC reset jumper (RTCRST)
2 processor connector (CPU) 13 intrusion switch connector
(INTRUDER)
3 processor power connector
(12VPOWER) 14 battery socket (BATTERY)
4 memory module connectors
(DIMM_1, DIMM_2, DIMM_3,
DIMM_4) 15 PCI Express x16 connector (SLOT1)
5 password jumper (PSWD) 16 PCI connector (SLOT2)
6 SATA connectors (SATA0, SATA1) 17 serial connector (SERIAL2)
7 front-panel connector (FRONTPANEL) 18 system board speaker (BEEP)
8 power connector (POWER) 19 aux power LED (AUX_LED)
9 fan connector (FAN_HDD) 20 floppy drive connector (DSKT)
10 eSATA connector (eSATA) 21 fan connector (FAN_CPU)
11 internal USB connector (INT_USB)
Jumper Setting Description
PSWD Password features are enabled
(default setting).
Password features are disabled.