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About Your System Board
DellPrecision™T3500ServiceManual
Password Enable Jumper
NVRAM Reset Jumper
System Board Schematic
Your computer's system board offers two jumpers—a password enable jumper and a RTCRST (Real Time Clock Reset) jumper.
Password Enable Jumper
PSWD - Password enable. The system password will be cleared and disabled when the system is started with this jumper removed.
Pins 1-2 shorted enables password
NVRAM Reset Jumper
RTCRST - Clears NVRAM. The NVRAM will be cleared when the jumper is closed (use the jumper from the password bridge). To properly clear; AC power must
be applied (not necessarily turned on) to the system for about 10 seconds while the jumper is closed.
Pins 1-2 shorted clears NVRAM
The picture below shows the location of the configuration jumpers on the system board.
System Board Schematic
WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best
practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance.
NOTE: You can use the RTCRST jumper procedure above to attempt recovery from a No POST, No Video situation.