Dell Precision T3500 (Early 2009) Instrukcja Użytkownika Pobierz pdf (Strona 2)

About Your System Board

DellPrecision™T3500ServiceManual

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.

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