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Maintenance & Service Guide
Presario 7900 Series Personal Computers
Models: 7922, 7930, 7935, 7940, 7947, 7950, 7970, 7973, 7985

 


Troubleshooting

Clearing CMOS for Model 7930, 7935, 7940, 7947, 7950, 7970, 7973, and 7985

7900 Models with K6-2 System Board

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Password Jumper Location

If the power-on password is not known, clearing CMOS will disable the power-on password. To clear CMOS, complete the following steps:

1. Complete the preparation for disassembly.
2. Remove the chassis.
3. To disable the password, move the
jumper at J3  from 2-3 to 1-2.
4. Wait for 10 seconds.
5. Move the jumper at J3 from 1-2 to 2-3.
6. Replace the chassis and perform the appropriate troubleshooting.



Back to Troubleshooting

 

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