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HP Pavilion PCs - Motherboard Layout and Information: ASUS P5S-VM
This document provides motherboard information about jumper locations, settings and their functions for the following HP Pavilion models:
System board layout
Figure 1: ASUS P5S-VM layout
Jumper settings and functions
VGA interrupt selection (VIRQ) and VGA setting (VEN_DIS)
VIRQ allows you to set the VGA interrupt method. The default enables the chipset’s internal interrupt routing. The VEN_DIS allows you to enable or disable the onboard VGA. Disable the onboard VGA, if you are using a VGA card on the expansion slot.
Figure 2: VIRQ and VEN_DIS jumper settings
Audio line out setting (LINEOUT_SW) and audio setting (AUDIOEN)
LINEOUT_SW allows you to set the audio line out settings. The default allows a stereo amplified connection to external speakers through the Line Out jack of the optional GAME/AUDIO connector. Sound quality is better using the Without Amplifier setting and an external amplifier or powered speakers. AUDIOEN allows you to enable or disable the onboard audio. Disable the onboard audio, if you are using an audio card on the expansion slot.
Figure 3: LINOUT_SW and AUDIOEN jumper settings
Keyboard power (wake) up (KB_UP)
This allows you to disable or enable the keyboard power or wake up function. Set to Enable, if you want to use your keyboard (by pressing the SPACEBAR) to power or wake up your computer. The default is set to Disable, because not all computers have the appropriate ATX power supply.
Figure 4: Wake and KB_UP jumper settings
CPU external (BUS) frequency selection (FS0, FS1, FS2, FS3)
These jumpers tell the clock generator what frequency to send to the CPU, chipset, and AGP. These allow the selection of the CPU’s externalfrequency (or BUS Clock). The BUS Clock times the BUS Ratio equals the CPU’s Internal frequency (the advertised CPU speed).
Figure 5: BUS and CPU to BUS frequency jumper locations
1 - CPU external (BUS) frequency jumpers
2 - CPU to BUS frequency ratio jumpers
Figure 6: CPU external (BUS) frequency jumper settings
CPU to BUS frequency ratio (BF0, BF1, BF2)
These jumpers set the frequency ratio between the internal frequency of the CPU and the external frequency (called the BUS Clock) within the CPU. These must be set together with the above jumpers CPU external (BUS) frequency selection.
Figure 7: CPU to BUS frequency ratio jumper settings
Voltage regulator output selection (VID0, VID1, VID2, VID3)
These jumpers set the VCORE voltage supplied to the CPU. Switching regulators allows some jumper settings to be the same for two voltages of different power planes.