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HP and Compaq Desktop PCs - Motherboard Specifications, MS-7525 (Boston)

Figure 1: The MS-7525 (Boston) motherboard

Motherboard description

  • Manufacturer's motherboard name: MSI MS-7525

  • HP/Compaq name: Boston-GL6

Form Factor

  • Micro-ATX: 24.4 cm (9.6 inches) x 21.9 cm (8.6 inches)


  • Intel G31 Express

Front-side bus speed

  • 800/1066/1333 MHz (processor dependent)

Processor upgrade information

Socket type: 775

Motherboard supports the following processor upgrades:

  • Core 2 Duo E7xxx (Wolfdale-M)

  • Core 2 Duo E4x00 (Conroe)

  • Pentium E2xxx series (Conroe)

  • Celeron Dual Core E1xx0 series (Conroe)

  • Celeron 4xx series (Conroe)

Memory upgrade information

  • Dual channel memory architecture

  • Two 240-pin DDR2 DIMM sockets

  • Supported DIMM types:

    • PC2-5300 (667 MHz)

    • PC2-6400 (800 MHz)

  • Non-ECC memory only, unbuffered

  • Supports 2GB DDR2 DIMMs

  • Supports up to 4 GB* on 32 bit PCs

    • 32 bit PCs cannot address a full 4.0 GB of memory.


Integrated graphics using Intel GMA 3100

*Integrated video is not available if a graphics card is installed.

  • Integrated graphics using Intel GMA 3100

  • Also supports PCI Express x16 graphics cards


Integrated Realtek ALC662 Audio

*Integrated video is not available if a graphics card is installed.

  • Audio CODEC: Realtek ALC662

  • 5.1 channel high-definition audio


LAN: 10-Base-T

  • Interface: Integrated into motherboard

  • Technology: Realtek 8101E

  • Data transfer speeds: up to 10/100Mb/s

  • Transmission standards:10-Base-T Ethernet

Expansion Slots

  • One PCI Express x16

  • Two PCI Express x1

  • One PCI

I/O Ports

Back I/O ports

Figure 2: Back I/O panel

1 - PS/2 mouse (green)
2 - Video Graphics Adapter
3 - RJ-45 Network (LAN)
4 - Audio: Line In (light blue)
5 - Audio: Line Out (lime)
6 - Audio: Microphone (pink)
7 - USB 2.0: 4
8 - PS/2 keyboard (purple)

Internal Connectors

  • One 24-pin ATX power connector

  • One 4-pin ATX power connector

  • Four SATA connectors

  • One floppy drive connector

  • Two 12v fan connectors for CPU fan and PC fan

  • One 9-pin header for power button, reset button, power LED, and HDD LED

  • Two USB 2.0 headers supporting 4 USB ports or devices

  • One SPDIF audio output connector

  • One 9-pin audio header for headphone-out and microphone-in (yellow, Vista capable, requires matching front audio jack module)

  • One jumper for resetting BIOS settings

  • One jumper to disable BIOS password checking

Motherboard layout

Figure 3: layout

Clearing the BIOS settings

CAUTION: Do not change any jumper setting while the computer is on. Damage to the motherboard can result.

Clearing CMOS

This motherboard has jumpers to clear the Real Time Clock (RTC) RAM in CMOS. In the default (normal) position the jumper is on pins 1-2.

To clear CMOS, follow these steps:

  1. Temporarily set jumper JBAT1 to pins 2-3.

  2. Wait 5-10 seconds and then return the jumper to pins 1-2.

  3. On the next startup, enter BIOS setup to reset any custom BIOS settings.

Clearing the BIOS password settings

The BIOS password is used to protect BIOS settings from unwanted changes.

To erase the BIOS password follow these steps:

  1. Turn OFF the computer and unplug the power cord.

  2. Remove the JPWD1 jumper.

  3. Connect the power cord and turn on the PC.

  4. Enter BIOS Setup Menu, you will find the previous password is cleared.

  5. Turn off the PC and unplug the power cord.

  6. Replace the JPWD1 jumper.

  7. Turn on the PC and set a new password if necessary.

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