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Motherboard Layout and Information: ASUS P2B-VE

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This document provides motherboard information about jumper locations, settings and their functions for the following HP Pavilion models:
Pavilion modelModel numberPavilion modelModel number
6460 D7377A 8490 D7311A
6466 D7366A 8496 D7329A
6470Z D7336A 8500 CTO D7201
8400 CTO D7200 8570C D7430A
8480Z D7310A 8576C D7479A

Features

  • Designed to operate with the Intel Pentium(R) II or III Processor.
  • Accepts processors operating at 350 MHz to 450 MHz.
  • The memory subsystem supports up to 256 MB of SDRAM (for improved performance).
  • Two DIMM sockets that support 8-128 MB 168-pin 3.3 Volt SDRAM memory modules.
  • Features Intel’s 440ZX AGPset with I/O subsystem
  • The onboard VGA features an onboard RagePro AGP with 8MB of SDRAM.
  • Connectors on the motherboard support the PCI and ISA expansion slots.
  • Features 4 PCI slots, 1 ISA slot and 1 AGP slot.
  • Manufactured for HP by ASUS
    NOTE: The ASUS model number is printed on the motherboard near the PCI slots

Motherboard layout

Figure 1: System board
1- Keyboard BIOS & multi-I/O chip12- FS2 BUS frequency selection
2- PCI slots13- SDRAM video (2MB each)
3- Accelerated graphics port (AGP)14- VEN_DIS VGA INT
4- CMOS battery (CR032 3V Lithium cell)15- Primary (bottom) & secondary (top) IDE
5- ATX power connector16- Floppy drive connector
6- Single edge contact CPU slot 117- ASUS ASIC
7- PS_fan connector18- Front panel connector
8- Intel 440ZX AGP set19- IDE LED
9- System fan connector20- BUS frequency multiple selection
10- DIMM socket 1 & 221- Intel PIIX4 PCIset
11- AMC connector22- COM2 connector

Enable/disable onboard video

The VGA-INT jumper, shown in Figure 2, allows you to set the VGA interrupt method. The default enables the chipset's internal interrupt routing for TV-Tuner or MPEG cards that may require interrupt assignment by the onboard chipset.
Figure 2: Onboard Video jumper settings

Enable/disable onboard video (VGA)

The VEN_DIS jumper, shown in Figure 1, allows you to enable or disable the onboard video. Disable the onboard video if you are using a VGA card in the expansion slot.

Clear real time clock (RTC) RAM (CLRTC)

The onboard button cell battery powers the CMOS RAM. To clear the RTC data, do the following:
  1. Unplug the computer.
  2. Using a small conductive object, such as a penny, momentarily connect the two squares labeled CLRTC (see Figure 3).
  3. Turn on the computer.
  4. Press and hold F1 while the computer is restarting and enter BIOS setup to re-enter user preferences.
Figure 3: Real Time Clock RAM (CLRTC)

Setting the CPU BUS frequency

CPU BUS frequency (FS2)

This option tells the clock generator what frequency to send to the CPU, DRAM, and the AGPset. This allows the selection of the CPU's external frequency (or BUS Clock). The BUS Clock multiplied by the BUS Ratio equals the CPU's internal frequency (the advertised CPU speed).

CPU Core: BUS frequency multiple (BF0, BF1, BF2, BF3)

This option sets the frequency ratio between the internal frequency of the CPU and the CPU's External frequency. These must be set in conjunction with the CPU Bus Frequency.
Figure 4: P2B-VE CPU Jumpers
NOTE: The flexible design of the motherboard will accept processors operating at 233 MHz to 500 MHz. Intel’s new “coppermine“ processor is not compatible with this motherboard.

CPU jumper settings

CPU Freq. (MHz) RatioBus Freq. (MHz)BUS Frequency FS2 Frequency Ratio
5005.0x 100 1-2 2-3 1-2 1-2 2-3
450 4.5x 100 1-2 2-3 1-2 2-3 1-2
400 4.0x 100 1-2 2-3 1-2 2-3 2-3
350 3.5x 100 1-2 2-3 2-3 1-2 1-2
333 5.0x 66 2-3 2-3 1-2 1-2 2-3
300 4.5x 66 2-3 2-3 1-2 2-3 1-2
266 4.0x 66 2-3 2-3 1-2 2-3 2-3
233 3.5x 66 2-3 2-3 2-3 1-2 1-2

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