Asus A55BM-PLUS driver and firmware
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A55BM-PLUS User's Manual - Page 2
... the express written permission of ASUSTeK COMPUTER INC. ("ASUS"). Product warranty or service will not be extended if: (1) the product is repaired, modified or altered, unless such repair, modification of alteration is authorized in writing by ASUS; or (2) the serial number of the product is defaced or missing. ASUS PROVIDES THIS MANUAL "AS IS" WITHOUT WARRANTY OF...
A55BM-PLUS User's Manual - Page 3
...vi A55BM-PLUS 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 1-8 1.5 Expansion slots 1-10 1.6 Jumpers 1-12 1.7 Onboard switches 1-13 1.8 Onboard LEDs 1-14 1.9 Connectors 1-15 1.10 Software support 1-24
BIOS information
2.1 Managing and updating your BIOS 2-1 2.2 BIOS setup...
A55BM-PLUS 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-PLUS User's Manual - Page 8
A55BM-PLUS specifications summary
ASUS unique features
ASUS Quiet Thermal Solution - Stylish Fanless Design Heat-sink solution - ASUS Fan Xpert 2
ASUS EZ DIY - ASUS CrashFree BIOS 3 - ASUS EZ Flash 2 - ASUS My Logo 2
ASUS Q-Design - ASUS Q-Slot
Back panel I/O ports
1 x PS/2 keyboard port 1 x PS/2 mouse port
1 x HDMI port 1 x DVI port 1 x D-Sub output port 1 x LAN (RJ-45) port 2 x USB 3.0 ...
A55BM-PLUS User's Manual - Page 16
... compatibility, we recommend that you install memory modules of the same version or date code (D/C) from the same vendor. Check with the retailer to get the correct memory modules.
• Due to the memory address limitation on 32-bit Windows® OS, when you install 4GB or more memory on the motherboard, the actual usable memory for the OS can be...
A55BM-PLUS User's Manual - Page 18
... card
After installing the expansion card, configure it by adjusting the software settings.
1. Turn on the system and change the necessary BIOS settings, if any. See Chapter 2 for information on BIOS setup.
2. Assign an IRQ 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...
A55BM-PLUS User's Manual - Page 21
... fails to boot due to BIOS overclocking, press the MemOK! switch to boot and load BIOS default settings. A message will appear during POST reminding you that the BIOS has been restored to its default settings.
• We recommend that you download and update to the latest BIOS version from the ASUS website at www.asus.com after using the MemOK! function.
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A55BM-PLUS User's Manual - Page 24
... support an 8-channel audio output.
7. USB 2.0 ports 1 and 2. These two 4-pin Universal Serial Bus (USB) ports are for USB 2.0/1.1 devices.
8. USB 3.0 ports 1 and 2. These two 9-pin Universal Serial Bus (USB) ports are for USB 3.0/2.0 devices.
• DO NOT connect a keyboard / mouse to any USB 3.0 port when installing Windows® operating system.
• Due to USB 3.0 controller limitations...
A55BM-PLUS User's Manual - Page 27
... for details.
• You must install Windows® XP Service Pack 3 or later version before using 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]. See section 2.6.2 SATA Configuration for details.
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A55BM-PLUS User's Manual - Page 32
... can install to avail all motherboard features.
The contents of the Support DVD are subject to change at any 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. Click Drivers, Utilities, Make Disk, Manual...
A55BM-PLUS User's Manual - Page 33
... goes into POST.
To launch EZ Update, click EZ Update on the AI Suite 3 main menu bar.
Click to automatically
update your motherboard's driver, software
and firmware
Click to find and select the BIOS
from file
Click to select a boot logo
Click to update the BIOS
EZ Update requires an Internet connection either through a network or an ISP (Internet Service Provider).
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A55BM-PLUS User's Manual - Page 34
... utility, download the latest BIOS file from the ASUS website at www.asus.com.
To update the BIOS using EZ Flash 2:
1. Insert the USB flash disk that contains the latest BIOS file to the USB port.
2. Enter the Advanced Mode of the BIOS setup program. Go to the Tool menu to select ASUS EZ Flash Utility and press to enable it.
3. Press to switch to the Drive field...
A55BM-PLUS User's Manual - Page 35
...a single partition.
2. Download the latest BIOS file and BIOS Updater from the ASUS website at http://support.asus.com and save them on the USB flash drive.
NTFS is not supported under DOS environment. Do not save the BIOS file and BIOS Updater to a hard disk drive or USB flash drive in NTFS format.
3. Turn off the computer and disconnect all SATA hard disk drives (optional).
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A55BM-PLUS User's Manual - Page 50
... want to use the Serial ATA hard disk drives as Parallel ATA physical storage devices.
[RAID]
Set to [RAID] when you want to create a RAID configuration from the SATA hard disk drives.
[AHCI] Set to [AHCI] when you want the SATA hard disk drives to use the AHCI (Advanced Host Controller Interface). The AHCI allows the onboard storage driver to enable advanced Serial ATA features that increases...
A55BM-PLUS User's Manual - Page 61
... Driver Support [Disabled]
[Disabled]
Select to skip the network stack driver from loading during POST.
[Enabled]
Select to load the network stack driver during POST.
Next Boot after AC Power Loss [Normal Boot]
[Normal Boot] Returns to normal boot on the next boot after AC power loss.
[Fast Boot]
Accelerates the boot speed on the next boot after AC power loss.
ASUS A55BM-PLUS...
A55BM-PLUS User's Manual - Page 63
...] For better compatibility, enable the CSM to fully support the non-UEFI
driver add-on devices or the Windows® UEFI mode. [Disabled] Disable the CSM to fully support the Windows® Security Update and
Security Boot.
The following four items appear when you set Launch CSM to [Enabled].
Boot Device Control [UEFI and Legacy OpROM] Allows you to select...
A55BM-PLUS User's Manual - Page 64
... when you set the OS Type to [Windows UEFI]. Configuration option: [Standard] [Custom]
The following item appears when OS Type is set to [Windows UEFI mode].
Key Management This item appears only when you set Secure Boot Mode...KEK from your system. Configuration options: [Yes] [No]
Load KEK from File Allows you to load the downloaded KEK from a USB storage device.
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Chapter 2: BIOS information
A55BM-PLUS User's Manual - Page 65
... from your system. Configuration options: [Yes] [No]
Load DBX from File Allows you to load the downloaded DBX from a USB storage device.
Append DBX from file Allows you to load the additional DBX from a storage device so that more db's images cannot be loaded.
The DBX file must be formatted as a UEFI variable structure with time-based authenticated variable.
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A55BM-PLUS User's Manual - Page 66
..., press when ASUS Logo appears.
• To access Windows OS in Safe Mode, press after POST.
2.8.11 Boot Override
These items displays the available devices. The number of device items that appears on the screen depends on the number of devices installed in the system. Click an item to start booting from the selected device.
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Chapter 2: BIOS information
A55BM-PLUS User's Manual - Page 67
... CMOS settings, press , and then select Yes.
• DO NOT shut down or reset the system while updating the BIOS to prevent the system boot failure!
• We recommend that you update the BIOS file only coming from the same memory/ CPU configuration and BIOS version.
Load/Save Profile from/to USB Drive Allows you to load/save CMOS profile from/to USB drive.
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