ASRock K8Upgrade-VM800 Quick Installation Guide - Page 11
Jumpers Setup, English - bios update
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2.4 Jumpers Setup The illustration shows how jumpers are setup. When the jumper cap is placed on pins, the jumper is "Short". If no jumper cap is placed on the pins, the jumper is "Open". The illustration shows a 3-pin jumper whose pin1 and pin2 are "Short" when jumper cap is placed on these 2 pins. Short Open Jumper Setting PS2_USB_PWR1 Short pin2, pin3 to enable (see p.2, No. 1) +5VSB (standby) for PS/2 or USB wake up events. Note: To select +5VSB, it requires 2 Amp and higher standby current provided by power supply. JR1 / JL1 Jumper (see p.2, No. 28) Note: If the jumpers JR1 and JL1 are short, both the front panel and the rear panel audio connectors can work. Clear CMOS Jumper (CLRCMOS2) (see p.2, No. 23) Note: CLRCMOS2 allows you to clear the data in CMOS. The data in CMOS includes system setup information such as system password, date, time, and system setup parameters. To clear and reset the system parameters to default setup, please turn off the computer and unplug the power cord from the power supply. After waiting for 15 seconds, use a jumper cap to short the Clear CMOS jumper for 5 seconds. After shorting the Clear CMOS jumper, please remove the jumper cap. However, please do not clear the CMOS right after you update the BIOS. If you need to clear the CMOS when you just finish updating the BIOS, you must boot up the system first, and then shut it down before you do the clear-CMOS action. English 11 ASRock K8Upgrade-VM800 Motherboard