Asus A55BM-K driver and firmware
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A55BM-K User's Manual - Page 2
.... Copies of these licenses are included in this product. Where the applicable license entitles you to the source code of such software and/or other additional data, you may obtain it for a period of three years after our last shipment of the product, either (1) for free by downloading it from http://support.asus.com/download or...
A55BM-K User's Manual - Page 3
...iv About this guide...iv Package contents...vi A55BM-K specifications summary vi Product introduction 1.1 Before you proceed 1-1 1.2 Motherboard overview 1-2 1.3 Accelerated Processing Unit (APU 1-4 1.4 System memory 1-7 1.5 Expansion slots 1-10 1.6 Jumpers...1-11 1.7 Connectors 1-13 1.8 Software support 1-21 BIOS information 2.1 Managing and updating your BIOS 2-1 2.2 BIOS setup program...
A55BM-K User's Manual - Page 4
... try to fix it by yourself. Contact a qualified service technician or your retailer.
Operation safety
• Before installing the motherboard and adding devices on it, carefully read all the manuals that came with the package.
• Before using the product, ensure all cables are correctly connected and the power cables are not damaged. If you detect any damage...
A55BM-K User's Manual - Page 5
... 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.
Conventions used in this guide
To ensure...
A55BM-K User's Manual - Page 6
Package contents
Check your motherboard package for the following items.
Motherboard Cables Accessories Application DVD Documentation
ASUS A55BM-K motherboard 2 x Serial ATA 3.0 Gb/s cables 1 x I/O Shield Support DVD User Guide
If any of the above items is damaged or missing, contact your retailer.
A55BM-K specifications summary
APU Chipset Memory
Graphics
Expansion slots
AMD® FM2+ ...
A55BM-K User's Manual - Page 8
... power connector 64 Mb Flash ROM, UEFI AMI BIOS, PnP, DMI 2.0, WfM 2.0, SM BIOS 2.7, ACPI 2.0a, Multi-language BIOS, ASUS EZ Flash 2, ASUS CrashFreen BIOS 3, F12 Printscreen function, F3 Shortcut function and ASUS DRAM SPD (Serial Presence Detect) memory information Drivers ASUS Update ASUS utilities Anti-Virus software (OEM version) Windows® 8.1 / 8.1 64bit Windows® 8 / 8 64bit Windows...
A55BM-K User's Manual - Page 9
... the system is ON, in sleep mode, or in soft-off mode. This is a reminder that you should shut down the system and unplug the power cable before removing or plugging in any motherboard component. The illustration below shows the location of the onboard LED.
SB_PWR
A55BM-K
ON
OFF
Standby Power Powered Off
A55BM-K Onboard LED
ASUS A55BM-K
1-1
A55BM-K User's Manual - Page 10
... 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. The edge with external ports goes to the rear part of the...
A55BM-K User's Manual - Page 12
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-K
A55BM-K 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...
A55BM-K User's Manual - Page 13
3
4
1.3.2 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.
To install the APU heatsink and fan assembly
1
2
ASUS A55BM-K
1-5
A55BM-K User's Manual - Page 15
... 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.
The figure illustrates the location of the DDR3 DIMM sockets:
DIMM_A1 DIMM_B1
A55BM-K
A55BM-K 240-pin DDR3 DIMM sockets
Channel Channel A Channel B
Sockets DIMM_A1 DIMM_B1
ASUS A55BM-K
1-7
A55BM-K User's Manual - Page 16
... using a 32-bit Windows® OS.
- Use a 64-bit Windows® OS if you want to install 4GB or more memory on the motherboard.
• This motherboard does not support DIMMs made up of 512Mb (64MB) chips or less.
• The maximum 32GB memory capacity can be supported with 16GB or above DIMMs. ASUS will update the memory QVL once the DIMMs...
A55BM-K User's Manual - Page 18
... to the card. 3. Install the software drivers for the expansion card.
When using PCI cards on shared slots, ensure that the drivers support "Share IRQ" or that the cards do not need IRQ assignments. Otherwise, conflicts will arise between the two PCI groups, making the system unstable and the card inoperable.
1.5.3 PCI slot
The PCI slot supports cards such as a LAN card, SCSI card, USB card, and...
A55BM-K User's Manual - Page 24
... a system with more power-consuming devices or when you intend to install additional devices. The system may become unstable or may not boot up if the power is inadequate.
• If you are uncertain about the minimum power supply requirement for your system, refer to the Recommended Power Supply Wattage Calculator at http://support.asus. com/PowerSupplyCalculator/PSCalculator.aspx...
A55BM-K User's Manual - Page 25
... Serial ATA hard disk drives. The Serial ATA RAID feature is available only if you are using Windows® XP SP3 or later version.
• When using hot-plug and NCQ, set the type of the SATA connectors in the BIOS to [AHCI].
4. Digital audio connector (4-1 pin SPDIF_OUT) This connector is for an additional Sony/Philips Digital Interface (S/PDIF) port.
+5V SPDIFOUT GND
A55BM-K
SPDIF_OUT A55BM...
A55BM-K User's Manual - Page 29
... time without notice. Visit the ASUS website at www.asus.com for updates.
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...
A55BM-K User's Manual - Page 31
... your BIOS
2
Save a copy of the original motherboard BIOS file to a USB flash disk in case you need to restore the BIOS in the future. Copy the original motherboard BIOS using the ASUS Update
utility.
2.1.1 EZ Update
EZ Update is a utility that allows you to automatically update your motherboard's softwares, drivers and the BIOS version easily. With this utlity, you can also manually update the...
A55BM-K User's Manual - Page 32
...You can restore a corrupted BIOS file using the motherboard support DVD or a USB flash drive that contains the updated BIOS file.
• Before using this utility, rename the BIOS file in the removable device into A55BMK.CAP.
• The BIOS file in the support DVD may not be the latest version. Download the latest BIOS file from the ASUS website at www.asus.com.
2-2
Chapter 2: Getting started
A55BM-K User's Manual - Page 33
... the BIOS To recover the BIOS: 1. Turn on the system. 2. Insert the support DVD to the optical drive or the USB flash drive that contains the
BIOS file to the USB port. 3. The utility automatically checks the devices for the BIOS file. When found, the utility
reads the BIOS file and enters ASUS EZ Flash 2 utility automatically. 4. The system requires you to enter BIOS Setup to recover BIOS setting...