ASRock K7S41GX2 User Manual - Page 16

2.5 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 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. Jumper Setting FSB Select Jumpers (see p.10 No. 25) FSB_SEL1 FSB_SEL0 1_2 2_3 FSB 200MHz 2_3 FSB_SEL1 2_3 FSB_SEL0 FSB 266MHz Description 1_2 FSB_SEL1 1_2 FSB_SEL0 FSB 333MHz Note: The setting of the CPU front side bus frequency of this motherboard is by means of the adjustment of jumper-setting. You must set the FSB jumper according to your AMD CPU before you use the "Manual" option as the FSB setting in BIOS setup to perform over clocking. Please follow the figures above to set the CPU front side bus frequency. PS2_USB_PWR1 1_2 2_3 Short pin2, pin3 to enable (see p.10 No. 1) +5V +5VSB +5VSB (standby) for PS/2 or USB01/23 wake up events. Note: To select +5VSB, it requires 2 Amp and higher standby current provided by power supply. USB_PWR1 1_2 2_3 Short pin2, pin3 to enable (see p.10 No. 16) +5V +5VSB +5VSB (standby) for USB4_5 wake up events. Note: To select +5VSB, it requires 2 Amp and higher standby current provided by power supply. 16