HP 303B Maintenance & Service Guide: HP 303B Microtower Business PC - Page 53

Clearing CMOS, Turn on the computer.

Page 53 highlights

5. Locate the CMOS jumper header on the motherboard. The jumper is labeled CLR_CMOS. 6. Remove the jumper from pins 1-2 pins and put it on pins 2-3 to clear CMOS. Keep the cap on pins 2-3 for 5 to 10 seconds. 7. Replace the jumper on pins 1-2. 8. Reinstall the battery. 9. Replace the access panel, external equipment, and reconnect the power cord. 10. Turn on the computer. 11. Hold down the F1 key during boot and enter BIOS setup to re-enter data. Clearing CMOS 45

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5.
Locate the CMOS jumper header on the motherboard. The jumper is labeled CLR_CMOS.
6.
Remove the jumper from pins 1-2 pins and put it on pins 2-3 to clear CMOS. Keep the cap on
pins 2-3 for 5 to 10 seconds.
7.
Replace the jumper on pins 1-2.
8.
Reinstall the battery.
9.
Replace the access panel, external equipment, and reconnect the power cord.
10.
Turn on the computer.
11.
Hold down the
F1
key during boot and enter BIOS setup to re-enter data.
Clearing CMOS
45