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HP and Compaq Desktop PCs - Motherboard Specifications, N-Alvorix-RS880-uATX (Alvorix)

Figure 1: The N-Alvorix-RS880-uATX (Alvorix) motherboard

 Photograph of motherboard

Motherboard description

  • Manufacturer's motherboard name: N-Alvorix-RS880-uATX (Alvorix)

  • HP/Compaq name: Alvorix

Form Factor

  • uATX form factor: 24.4cm (9.6 inches) x 24.4cm (9.6 inches).

Chipset

  • AMD 785G

Front-side bus speed

  • 1333/1066/800MHz

Upgrade Information

Processor upgrade information

  • Max TDP: 95W

  • Motherboard supports the following processor upgrades:
    NOTE: Only Socket AM3 processors are supported with this motherboard.
    • AMD Phenom II X6 10xxT Six-Core (Thuban core)

    • AMD Phenom II X4 9xx/9xxe/8xx Quad-Core (Deneb core)

    • AMD Phenom II X3 7xx/7xxe Triple-Core (Heka core)

    • AMD Phenom II X2 5xx (Callisto core)

    • AMD Athlon X4 6xx/6xxe (Propus)

    • AMD Athlon X3 4xx/4xxe (Rana)

    • AMD Athlon X2 2xx/2xxe (Regor)

    • AMD Sempron Single Core 1xx (Sargas core)

Memory upgrade information

  • Dual channel memory architecture

  • Four DDR3 DIMMs (240-pin) sockets

    • PC3-8500 (DDR3-1066)

    • PC3-10600 (DDR3-1333)

  • Non-ECC memory only, unbuffered

  • Supports 1GB, 2GB, and 4GB DDR3 DIMMs

  • Supports up to 16 GB on 64-bit systems

  • Supports up to 4 GB on 32-bit PCs

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

Integrated video

Integrated graphics using ATI Radeon 4200

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

  • Integrated graphics using ATI Radeon 4200

  • Integrated graphics: concurrent use of the DVI and VGA ports is supported.

  • Also supports PCI Express x16 graphics cards*

NOTE: *Either integrated graphics or the PCI Express x16 slot are usable at one time; they are not usable concurrently.

Integrated audio

Integrated ALC888S-VD audio

*Integrated audio is not available if a sound card is installed.

  • Audio CODEC: ALC888S-VD

  • Number of channels: 8

  • Maximum sample rate: up to 192,000 Hz

  • Supports one SPDIF digital connection

Integrated network

LAN: 10-Base-T

  • Technology: PCI Realtek RTL8105E

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

  • Transmission standards:10-Base-T Ethernet

I/O Ports and internal connectors

Back I/O ports

Figure 2: Back I/O panel

 Photograph of the ports on the back panel
1 - One electrical S/PDIF Output
2 - One VGA port
3 - Four USB 2.0 ports
4 - One RJ45 10/100 Mb/s LAN
5 - Center/Subwoofer-out (yellow - orange)
6 - Rear speaker-out (black)
7 - Line-in (light blue)
8 - Line-out (lime)
9 - Mic-in (pink)
10 - Side speaker-out (gray)
11 - One DVI-D port

Internal Connectors

  • One CPU fan connector

  • One system fan connector

  • Four SATA connectors

  • One front audio header

  • One Mini-PCIE LED header

  • Two Dual-USB 2.0 headers

  • Four Single-USB 2.0 headers

  • One front panel header

  • One S/PDIF out header

  • One Power Supply connector

  • One ATX connector

Expansion Slots

  • 1 PCI Express x16 slot Gen 2 speed

  • 3 PCI Express x1 slots

  • 1 PCI Express x1 mini card socket

Jumper settings

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

Clearing the CMOS settings

This jumper allows you to clear the Real Time Clock (RTC) RAM in CMOS. To clear CMOS, follow these steps:

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

  2. Locate the jumper labeled CLR_CMOS.

  3. Move the jumper cap from pins 1-2 (default) to pins 2-3.

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

  5. You may now restart the PC.

Clearing the BIOS password

This jumper allows you to clear the BIOS password. The BIOS password is used to protect BIOS settings from unwanted changes. If you have forgotten your password you may disable password checking.

To clear the BIOS password follow these steps:

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

  2. Locate the jumper labeled CLR_PWD.

  3. Move the jumper cap from pins 1-2 (default) to pins 2-3.

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

  5. Plug in the power cord and turn ON the computer.

Motherboard layout

Figure 3: layout

Line drawing of motherboard showing components

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