Motherboard A55BM-E/BR
E8866 First Edition December 2013 Copyright © 2013 ASUSTeK COMPUTER INC. All Rights Reserved. No part of this manual, including the products and software described in it, may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by any means, except documentation kept by the purchaser for backup purposes, without the express written permission of ASUSTeK COMPUTER INC. (“ASUS”).
Contents Safety information....................................................................................................... iv About this guide.......................................................................................................... iv Package contents........................................................................................................ vi A55BM-E/BR specifications summary......................................................................
Safety information Electrical safety • To prevent electrical shock hazard, disconnect the power cable from the electrical outlet before relocating the system. • When adding or removing devices to or from the system, ensure that the power cables for the devices are unplugged before the signal cables are connected. If possible, disconnect all power cables from the existing system before you add a device.
Where to find more information Refer to the following sources for additional information and for product and software updates. 1. ASUS websites The ASUS website provides updated information on ASUS hardware and software products. Refer to the ASUS contact information. 2. Optional documentation Your product package may include optional documentation, such as warranty flyers, that may have been added by your dealer. These documents are not part of the standard package.
Package contents Check your motherboard package for the following items. Motherboard ASUS A55BM-E/BR motherboard Cables 2 x Serial ATA 3.0 Gb/s cables Accessories 1 x I/O Shield Application DVD Support DVD Documentation User Guide If any of the above items is damaged or missing, contact your retailer. A55BM-E/BR specifications summary CPU AMD® FM2+ Socket for AMD® A-Series/Athlon™ Series processors AMD® Turbo Core Technology 3.0 support Supports APU up to 4 cores • Refer to www.asus.
A55BM-E/BR specifications summary Storage / RAID AMD® A55 FCH: - 6 x Serial ATA 3.0Gb/s connectors (dark brown) support RAID 0, RAID 1, RAID 10, and JBOD configurations LAN Realtek® 8111G Gigabit LAN controller Audio Realtek® ALC887-VD 8-channel High Definition Audio CODEC • Use a chassis with HD audio module in the front panel to support a 7.1-channel audio output. USB AMD® A55 FCH: ASUS unique features ASUS 5X Protection - 8 x USB 2.0/1.
A55BM-E/BR specifications summary Back Panel I/O ports 1 x PS/2 mouse port (green) 1 x PS/2 keyboard port (purple) 1 x HDMI port 1 x VGA port 1 x LAN (RJ-45) port 4 x USB 2.0/1.1 ports 8-channel audio I/O ports (3-jack) Internal I/O connectors 2 x USB 2.0 connectors support additional 4 USB 2.0 ports 6 x SATA 3.
Product introduction 1.1 Before you proceed 1 Take note of the following precautions before you install motherboard components or change any motherboard settings. • Unplug the power cord from the wall socket before touching any component. • Before handling components, use a grounded wrist strap or touch a safely grounded object or a metal object, such as the power supply case, to avoid damaging them due to static electricity. • Hold components by the edges to avoid touching the ICs on them.
1.2 Motherboard overview Before you install the motherboard, study the configuration of your chassis to ensure that the motherboard fits into it. Ensure that you unplug the power cord before installing or removing the motherboard. Failure to do so can cause you physical injury and damage motherboard components. 1.2.1 Placement direction When installing the motherboard, ensure that you place it into the chassis in the correct orientation.
1.2.3 Motherboard layout 1 2 3 4 5 18.3cm(7.2in) KBMS CPU_FAN DIGI +VRM ATX12V CHA_FAN KB_USBWB AUDIO 23.6cm(9.
1.3 Accelerated Processing Unit (APU) This motherboard comes with an FM2+ socket designed for AMD® A-series accelerated processors with AMD® Radeon™ HD 7000/8000 series graphics. A55BM-E/BR A55BM-E/BR CPU socket FM2+ Ensure that you use an APU designed for the FM2+ socket. The APU fits in only one correct orientation. DO NOT force the APU into the socket to prevent bending the pins and damaging the APU! 1.3.
3 1.3.2 4 APU heatsink and fan assembly installation Apply the Thermal Interface Material to the APU heatsink and APU before you install the heatsink and fan if necessary.
3 4 5 To uninstall the APU heatsink and fan assembly 1 4 1-6 3 2 5 Chapter 1: Product introduction
1.4 System memory 1.4.1 Overview The motherboard comes with two Double Data Rate 3 (DDR3) Dual Inline Memory Modules (DIMM) sockets. A DDR3 module has the same physical dimensions as a DDR2 DIMM but is notched differently to prevent installation on a DDR2 DIMM socket. DDR3 modules are developed for better performance with less power consumption.
1.4.2 Memory configurations You may install 1GB, 2GB, 4GB, and 8GB unbuffered non‑ECC DDR3 DIMMs into the DIMM sockets. • You may install varying memory sizes in Channel A and Channel B. The system maps the total size of the lower-sized channel for the dual-channel configuration. Any excess memory from the higher-sized channel is then mapped for single-channel operation. • Always install DIMMs with the same CAS latency.
1.4.
1.5 Expansion slots In the future, you may need to install expansion cards. The following sub‑sections describe the slots and the expansion cards that they support. Unplug the power cord before adding or removing expansion cards. Failure to do so may cause you physical injury and damage motherboard components. 1.5.1 Installing an expansion card To install an expansion card: 1.
1.5.4 PCI Express x1 slot This motherboard supports PCI Express 2.0 x1 network cards, SCSI cards, and other cards that comply with the PCI Express specifications. 1.5.5 PCI Express x16 slot This motherboard supports one PCI Express 3.0/2.0 x16 graphics cards that comply with the PCI Express specifications.
To erase the RTC RAM: 1. Turn OFF the computer and unplug the power cord. 2. Move the jumper cap from pins 1-2 (default) to pins 2-3. Keep the cap on pins 2-3 for about 5-10 seconds, then move the cap back to pins 1-2. 3. Plug the power cord and turn ON the computer. 4. Hold down the key during the boot process and enter BIOS setup to reenter data. Except when clearing the RTC RAM, never remove the cap on CLRTC jumper default position. Removing the cap will cause system boot failure! 2.
3. Keyboard and USB device wake up (3-pin KB_USBPWB) This jumper allows you to enable or disable the keyboard and USB device wake-up feature. When you set this jumper to pins 2-3 (+5VSB), you can wake up the computer by pressing a key on the keyboard. This feature requires an ATX power supply that can supply at least 1A on the +5VSB lead, and a corresponding setting in the BIOS. 1 A55BM-E/BR 2 2 3 KB_USBPWB +5V +5VSB (Default) A55BM-E/BR Keyboard and USB device wake up 1.7 Connectors 1.7.
LAN port LED indications Activity/Link LED Status Off Orange Orange (Blinking) Orange (Blinking then steady) Description No link Linked Data activity Ready to wake up from S5 mode ACT/LINK SPEED LED LED Speed LED Status Description OFF 10Mbps connection ORANGE 100Mbps connection GREEN 1Gbps connection LAN port 5. Line In port (light blue). This port connects to the tape, CD, DVD player, or other audio sources. 6. Line Out port (lime). This port connects to a headphone or a speaker. In the 4.1, 5.
1.7.2 1. Internal connectors CPU and chassis fan connectors (4-pin CPU_FAN, and 4-pin CHA_FAN) CHA_FAN +5V CHA FAN IN CHA FAN PWR GND A55BM-E/BR CPU_FAN CPU FAN PWM CPU FAN IN CPU FAN PWR GND Connect the fan cables to the fan connectors on the motherboard, ensuring that the black wire of each cable matches the ground pin of the connector. A55BM-E/BR Fan connectors DO NOT forget to connect the fan cables to the fan connectors.
2. ATX power connectors (24-pin EATXPWR, 4-pin ATX12V) These connectors are for an ATX power supply. The plugs from the power supply are designed to fit these connectors in only one orientation. Find the proper orientation and push down firmly until the connectors completely fit.
3. Serial ATA 3.0 Gb/s connectors (7-pin SATA3G 1~6) These connectors are for the Serial ATA 3.0 Gb/s signal cables for Serial ATA hard disk drives and optical disc drives. If you installed Serial ATA hard disk drives, you can create a RAID 0, RAID 1, or RAID 10 configuration through the onboard controller.
4. System panel connector (10-1 pin PANEL) This connector supports several chassis-mounted functions. F_PANEL PWR_LED+ PWR_LEDPWR GND +PWR LED PWR BTN HDD_LED+ HDD_LEDGround HWRST# (NC) PIN 1 A55BM-E/BR +HDD_LED RESET A55BM-E/BR System panel connector • System power LED (2-pin PWR_LED) This 2-pin connector is for the system power LED. Connect the chassis power LED cable to this connector. The system power LED lights up when you turn on the system power, and blinks when the system is in sleep mode.
6. Digital audio connector (4-1 pin SPDIF_OUT) +5V SPDIFOUT GND This connector is for an additional Sony/Philips Digital Interface (S/PDIF) port. A55BM-E/BR SPDIF_OUT A55BM-E/BR Digital audio connector The S/PDIF module is purchased separately. 7. Front panel audio connector (10-1 pin AAFP) NC AGND NC NC SENSE2_RETUR AGND NC SENSE1_RETUR This connector is for a chassis-mounted front panel audio I/O module that supports either High Definition Audio or AC`97 audio standard.
8. USB 2.0 connectors (10-1 pin USB34, USB56) These connectors are for USB 2.0 ports. Connect the USB module cable to any of these connectors, then install the module to a slot opening at the back of the system chassis. These USB connectors comply with USB 2.0 specification that supports up to 480Mbps connection speed. USB+5V USB_P3USB_P3+ GND NC USB34 USB+5V USB_P5USB_P5+ GND NC USB56 PIN 1 USB+5V USB_P4USB_P4+ GND PIN 1 USB+5V USB_P6USB_P6+ GND A55BM-E/BR A55BM-E/BR USB2.
10. LPT connector (26-1 pin LPT) The LPT (Line Printing Terminal) connector supports devices such as a printer. LPT standardizes as IEEE 1284, which is the parallel port interface on IBM PC-compatible computers. AFD ERR# INIT# SLIN# GND GND GND GND GND GND GND GND LPT PIN 1 STB# PD0 PD1 PD2 PD3 PD4 PD5 PD6 PD7 ACK# BUSY PE SLCT A55BM-E/BR A55BM-E/BR Parallel Port Connector 1.8 Software support 1.8.
To run the Support DVD Place the Support DVD into the optical drive. If Autorun is enabled in your computer, the DVD automatically displays the Specials screen which contains the unique features of ASUS motherboard. Click Drivers, Utilities, Make Disk, Manual, Contact and Specials tabs to display their respective menus. The following screen is for reference only.
