Q: Where is the CMOS reset button or jumper on the Z77 Extreme4?

The ASROCK Z77 Extreme4 motherboard offers two solutions to clear the CMOS: 1. CMOS Clear Switch (quick method) A switch located on the back panel of the board (I/O) allows you to quickly reset the CMOS without opening the case. This is the most convenient solution. 2. CLRCMOS1 Jumper (on the board) Alternatively, you will find a 3-pin jumper named CLRCMOS1 directly on the motherboard. To use it: Turn off your computer Unplug the power cord Wait 15 seconds Place a jumper cap to connect pins 2 and 3 for 5 seconds Return the jumper to its original position (pins 1 and 2 closed) The default jumper connects pins 1 and 2. Only modify pins 2 and 3 during the reset.

Q: What are the differences between WiFi 6E and WiFi 7?

The X870 Pro-A WiFi is equipped with WiFi 6E (802.11ax). This standard offers theoretical speeds of up to 9.6 Gbps and uses the 2.4 GHz, 5 GHz, and the new 6 GHz bands, which reduces interference and improves performance. For context, WiFi 7 (802.11be) shows theoretical speeds of up to 46 Gbps, but this standard is still very new and not widely deployed. WiFi 6E remains excellent for: High-definition online gaming 4K streaming without lag Fast file transfers Managing many connected devices simultaneously In practice, for the majority of users (streaming, gaming, browsing), the WiFi 6E of the X870 Pro-A provides a more than sufficient connection. WiFi 7 only becomes relevant for extreme use cases (very large data transfers, professional environments).

Question 1

Where is the CMOS reset button or jumper on the Z77 Extreme4?

Accepted Answer

The ASROCK Z77 Extreme4 motherboard offers two solutions to clear the CMOS:

1. CMOS Clear Switch (quick method)

A switch located on the back panel of the board (I/O) allows you to quickly reset the CMOS without opening the case. This is the most convenient solution.

2. CLRCMOS1 Jumper (on the board)

Alternatively, you will find a 3-pin jumper named CLRCMOS1 directly on the motherboard. To use it:

Turn off your computer
Unplug the power cord
Wait 15 seconds
Place a jumper cap to connect pins 2 and 3 for 5 seconds
Return the jumper to its original position (pins 1 and 2 closed)

The default jumper connects pins 1 and 2. Only modify pins 2 and 3 during the reset.

Question 2

The fan remains stuck at 100% after restarting the PC on the Rack ROMED8-2T/BCM

Accepted Answer

If the fan remains stuck at 100% after shutting down the PC and restarting, it generally indicates a sensor issue or a thermal protection condition on the Rack ROMED8-2T/BCM. Here are the troubleshooting steps:

Initial Diagnosis

Check temperature sensors - Access the BMC WebUI interface and check the Sensor tab. Ensure that the RPM readings and temperature values are not stuck at abnormally high thresholds. A faulty sensor can force the fans to maximum for safety.
Check Closed Loop Control settings - Go to Settings > FAN Settings and confirm that your closed loop settings have not been corrupted or reset to dangerous values upon restart.
Check the fan error LED - Inspect the fan error LED (amber) on the motherboard. If it is blinking, it indicates a fault condition that locks the fans for thermal protection.

Reset Procedures

Complete BMC reset - Completely power off the device, wait 30 seconds, then restart. This often clears erroneous temporary states from the BMC.
If the problem persists - Contact ASRock Rack support. A faulty sensor or BMC firmware issue may require a firmware update or a hardware reset that only support can perform. This board does not contain user-replaceable parts.

The most common cause is a faulty temperature sensor or an exceeded alert threshold triggering thermal protection. Start by checking the sensor readings in the BMC interface.

Question 3

How to configure the smart fan settings on the Rack ROMED8-2T/BCM?

Accepted Answer

To configure the smart fan settings on your ASROCK Rack ROMED8-2T/BCM motherboard, access the BMC (Baseboard Management Controller) management interface:

Accessing the settings

Navigate to Settings > FAN Settings in the BMC web interface.

Available control modes

Open Loop Control - Allows you to directly set fan speeds from predefined speed tables, providing precise manual control.
Closed Loop Control - Enables automatic adjustment of fan speeds based on real-time temperature sensor readings.

Recommended configuration

The Closed Loop mode is recommended as it automatically adjusts fan speeds according to actual thermal data, optimizing cooling efficiency and reducing operational noise.

You can also associate temperature sensors with specific fan units for automated thermal response tailored to each area of the motherboard.

Refer to pages 137-144 of the full manual for detailed configuration tables and step-by-step instructions.

Question 4

Why does the motherboard indicate WiFi 6E in the manual while some sellers advertise WiFi 7?

Accepted Answer

The manual for this motherboard is correct: the ASRock X870 Pro-A WiFi indeed has WiFi 6E, not WiFi 7.

This discrepancy generally arises from:

Seller error - The retailer likely copied and pasted the specifications from another model (different SKU) or misinterpreted the specs
Confusion with other models - ASRock offers other X870 and X870E motherboards with different WiFi configurations. Some high-end variants have WiFi 7, but not the Pro-A
Misunderstanding about the chipset - Some believe that the X870E chipset = WiFi 7 automatically, which is false. The chipset alone does not determine the WiFi standard

What to remember: The ASRock X870 Pro-A WiFi integrates the WiFi 6E (802.11ax) standard, which offers excellent speed and stability. If a seller claims WiFi 7 for this specific model, it is an error on their part - ask them to correct their product listing or contact ASRock for confirmation.

Question 5

What are the differences between WiFi 6E and WiFi 7?

Accepted Answer

The X870 Pro-A WiFi is equipped with WiFi 6E (802.11ax). This standard offers theoretical speeds of up to 9.6 Gbps and uses the 2.4 GHz, 5 GHz, and the new 6 GHz bands, which reduces interference and improves performance.

For context, WiFi 7 (802.11be) shows theoretical speeds of up to 46 Gbps, but this standard is still very new and not widely deployed. WiFi 6E remains excellent for:

High-definition online gaming
4K streaming without lag
Fast file transfers
Managing many connected devices simultaneously

In practice, for the majority of users (streaming, gaming, browsing), the WiFi 6E of the X870 Pro-A provides a more than sufficient connection. WiFi 7 only becomes relevant for extreme use cases (very large data transfers, professional environments).

Question 6

Where is the CMOS battery located on the ASROCK Z97 Anniversary motherboard?

Accepted Answer

The ASROCK Z97 Anniversary motherboard manual mentions the CMOS battery but does not specify its exact location on the diagram. However, here is what you can know:

The CLRCMOS1 jumper (position #21) is located near the CMOS battery. This jumper is used to clear the CMOS data without removing the battery - simply short the pins 2 and 3 for 5 seconds after turning off and unplugging the system.

To precisely locate the CMOS battery:

Refer to the component layout diagram in the PDF manual (available for download on this page) - the battery is identified there.
The CMOS battery is a coin-cell button battery (type CR2032), circular in shape and easily recognizable on the board.
It is generally soldered directly onto the board near the chipset and the CLRCMOS1 jumper.

Tip: If you need to remove the battery to reset the BIOS, make sure you have first booted and shut down the system normally - do not do this immediately after a BIOS update.

Question 7

How to activate the 8-channel mode of DDR4 memory?

Accepted Answer

The 8-channel mode of DDR4 memory is automatically activated on the ASROCK WRX80 Creator R2.0 motherboard. You just need to install a DDR4 module in each of the 8 available DIMM slots, and the motherboard will naturally detect this configuration without any additional intervention.

Supported memory specifications:

Native speed: DDR4-3200 MHz
Maximum capacity: up to 2,048 GB
Accepted types: U-DIMM, R-DIMM, 3DS R-DIMM with or without ECC
Overclocking potential up to DDR4-4400+ MHz

No BIOS settings are required to activate the 8-channel mode - detection and activation are fully automatic. If you wish to optimize performance through overclocking, the built-in AMI UEFI BIOS tools will allow you to adjust DRAM and CPU voltages as needed.

Question 8

How to disable S1/S3 sleep modes on the ASROCK B550M/ac motherboard?

Accepted Answer

The ASROCK B550M/ac motherboard supports S1/S3 sleep modes according to the ACPI 5.1 standard. To disable these modes, you need to access the UEFI BIOS:

Steps to disable S1/S3:

Restart your computer and access the BIOS by pressing Delete during startup
Navigate to the power management settings (usually in a section called "Power Management" or "Advanced")
Look for the options "Suspend Mode", "S1 Support", or "S3 Support"
Disable these options according to your preferences (S1, S3, or both)
Save your changes with Ctrl+S or by using the save menu

Note: Your motherboard uses an AMI BIOS with Jumpfree support, which means that sleep modes can be fully managed by software without hardware modification. During S1/S3 sleep, the indicator LED blinks. Disabling these modes will prevent the system from entering these low power states.

Question 9

Does the ASROCK B150M-ITX motherboard have M.2 slots?

Accepted Answer

No, the ASROCK B150M-ITX motherboard does not have dedicated M.2 slots. However, it supports NVMe SSDs, but only via the PCI Express 3.0 x16 slot using an external adapter.

For storage, this motherboard offers:

4 SATA3 connectors (6 Gb/s) for traditional SATA hard drives or SSDs
NVMe support via the PCIe x16 slot - requires an M.2 to PCIe adapter

If you want to use an M.2 NVMe SSD on this motherboard, you will need to obtain a compatible M.2 PCIe adapter for the PCIe x16 slot.

Question 10

Where are the power button pins located on the ASROCK H170 Combo motherboard?

Accepted Answer

The power button pins are located on the PANNEAU1 connector (9 pins), referenced as "No. 16" on the ASROCK H170 Combo motherboard diagram.

PANNEAU1 Pin Configuration

The connector accommodates the front panel cables of the case according to the following layout:

PWRBTN# - Power Button
RESET# - Reset Button
PLED+/PLED- - Power LED (lights up during operation, blinks in sleep S1/S3)
HDLED+/HDLED- - Hard Drive Activity LED
GND - Ground

Pin Arrangement: PLED+ PLED- PWRBTN# GND / GND RESET# GND HDLED- HDLED+

Important Note: Before connecting the front panel cables, make sure to correctly identify the positive and negative pins. This is particularly crucial for polarized LEDs - a reversed connection can damage the components.

Refer to the connector diagram in the detailed manual for precise identification of the pins on your motherboard.

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