Question 1

What precautions should be taken when replacing the battery on an ASROCK B85M Pro4 motherboard?

Accepted Answer

Replacing the CMOS battery on the ASROCK B85M Pro4 motherboard must follow some essential precautions. The motherboard uses a CR2032 button cell lithium battery, a standard component for maintaining BIOS settings and the system clock. Before any intervention, completely turn off the computer and unplug the power cable from the electrical outlet, then wait at least 15 seconds before removing the battery.

Protection against electrostatic discharge is crucial to preserve the motherboard. Wear an anti-static wrist strap connected to ground or touch a metallic part of the case to discharge yourself before any handling. Absolutely avoid placing the motherboard on a surface like a carpet, which accumulates static charges. If you remove other components, place them immediately on a dedicated anti-static mat or in their original packaging.

To locate and access the CMOS battery on the B85M Pro4, refer to the component layout plan number 21 indicated in the manual (schematic section). When removing, handle the battery carefully without touching the surrounding components. Note the polarity: the (+) sign must be facing up during reinstallation. Reversing the polarity will prevent the motherboard from functioning correctly.

Insert the new CR2032 battery while strictly adhering to the polarity marked on the holder, then wait a few seconds before restoring power. After powering on and rebooting the system, check that the BIOS settings are retained and that the system clock displays the correct time. If you notice a loss of configuration, consult the BIOS menu to restore the default settings if necessary. Important: the lithium battery used contains controlled substances; comply with local regulations when disposing of it.

Question 2

How to access and configure the BIOS of the ASROCK H87M motherboard?

Accepted Answer

The ASROCK H87M motherboard is equipped with a 64 MB AMI UEFI BIOS with a multilingual graphical interface. To access the BIOS and configure your system's hardware settings, you need to press the F2 or F6 key during the computer's startup, before the operating system loads. It is important to be quick during startup, as you only have a few seconds to press the key during the POST (Power-On Self Test).

Once in the UEFI BIOS menu of the ASROCK H87M, you can configure the following settings specific to this motherboard:

Boot Order: Select the order of boot devices (hard drive, SSD, USB drive) to choose from which medium to launch the operating system.
CPU Configuration: Enable or disable features of the 4th generation Intel Core processor, including Intel Turbo Boost 2.0 Technology and overclocking options via OC Tweaker.
DDR3 Memory Management: Set the DDR3 frequency (1600, 1333, or 1066 MHz), timings, and enable Intel Extreme Memory Profile (XMP) 1.3/1.2 to optimize your RAM performance. This motherboard supports up to 32 GB of DDR3 memory.
Voltage Adjustment: Configure the CPU, DRAM, PCH 1.05V, and PCH 1.5V voltages according to your needs (note: reserved for experienced users).
Security Options: Set BIOS passwords to protect access to the setup or the operating system.
Integrated Devices: Enable or disable SATA controllers, USB 3.0 and USB 2.0 ports, the Gigabit Ethernet network card, or the 7.1 CH audio codec according to your needs.
Drives and Storage: Configure RAID modes (0, 1, 5, 10) for your SATA drives, and enable Intel Smart Response Technology to enhance performance.
Advanced Options: ASRock Restart to UEFI (Windows 8 compatible) for easy access to the BIOS even with Fast Boot technology enabled, and ASRock Good Night LED to turn off LEDs when the system is in sleep mode.

To update the BIOS, use the ASRock Instant Flash feature integrated into the motherboard. After downloading the BIOS file onto a USB drive formatted in FAT32, press F6 or F2 at startup to access the BIOS setup, then launch ASRock Instant Flash. Note: during the BIOS update, ensure that the computer remains powered on. ASRock Crashless BIOS will automatically protect the update in case of a power outage.

If you have made changes to the BIOS and wish to revert to the default settings, you can use the CLRCMOS1 jumper located on the motherboard. Turn off the computer, unplug the power supply, wait 15 seconds, then place the jumper on pins 2 and 3 of the CLRCMOS1 jumper for 5 seconds. This operation will clear the CMOS data and reset all BIOS settings to their factory values. After clearing the CMOS, check the BIOS option "Clear Status" if you receive an open chassis alert message.

Warning regarding overclocking: The ASROCK H87M supports overclocking via OC Tweaker and BIOS modifications. However, be aware that overclocking carries risks: it can affect system stability and damage components. ASRock disclaims any liability for damage resulting from overclocking. Only modify BIOS settings if you are an experienced user, note your original settings before making any changes, and proceed gradually with stability tests after each change.

For advanced configurations and overclocking, you can use the A-Tuning software suite (including XFast RAM, Good Night LED, FAN-Tastic Tuning, OC Tweaker) or Intel Extreme Tuning Utility (IXTU) provided on the CD included with the motherboard. These tools allow you to adjust system settings without rebooting, offering a more user-friendly interface than traditional BIOS.

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