ASMB4-iKVM/ ASMB4-SOL PLUS Server Management Board
E6568 Second Edition V2 March 2011 Copyright © 2011 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 Notices.......................................................................................................... vi Safety information..................................................................................... viii About this guide.......................................................................................... ix ASMB4-iKVM/ASMB4-SOL PLUS specifications summary..................... xi Chapter 1: Product introduction 1.1 Welcome!.............................................
Contents 3.1.8 Adjusting the monitoring settings................................... 3-14 3.1.10 Viewing PET information................................................ 3-17 3.1.9 3.2 ASUS Host Management Controller Setup.................................... 3-20 3.2.1 Installing and launching the ASUS Host Management Controller Setup utility..................... Command fields............................................................. 3-21 3.2.4 View................................................
Contents 4.6 4.7 4.5.4 Chassis Identify Command............................................ 4-13 Maintenance................................................................................ 4-13 Languages................................................................................... 4-14 Appendix: Reference information A.1 BMC connector..............................................................................A-2 A.3 Troubleshooting.............................................................
Notices Federal Communications Commission Statement This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: • • This device may not cause harmful interference, and This device must accept any interference received including interference that may cause undesired operation. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules.
REACH Complying with the REACH (Registration, Evaluation, Authorization, and Restriction of Chemicals) regulatory framework, we published the chemical substances in our products at ASUS website at http://csr.asus.com/english/ REACH.htm. ASUS Recycling/Takeback Services ASUS recycling and takeback programs come from our commitment to the highest standards for protecting our environment.
Safety information Electrical safety • • • • • • To prevent electrical shock hazard, disconnect the power cable from the electrical outlet before relocating the server. When adding or removing devices to or from the server, 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 server before you add a device.
About this guide This user guide contains the information you need when installing and configuring the server management board. How this guide is organized This guide contains the following parts: • • • • • Chapter 1: Product introduction This chapter describes the server management board features and the new technologies it supports. Chapter 2: Installation This chapter provides instructions on how to install the board to the server system and install the utilities that the board supports.
Conventions used in this guide To make sure that you perform certain tasks properly, take note of the following symbols used throughout this manual. DANGER/WARNING: Information to prevent injury to yourself when trying to complete a task. CAUTION: Information to prevent damage to the components when trying to complete a task. IMPORTANT: Instructions that you MUST follow to complete a task. NOTE: Tips and additional information to help you complete a task.
ASMB4-iKVM/ASMB4-SOL PLUS specifications summary Chipset Aspeed 2050 Internal RAM 56 Mb for system 8 Mb for video Internal ROM 16 Mb Timers 32-bit Watchdog Timer Main features IPMI 2.0-compliant and supports KVM over LAN Web-based user interface (remote management) Virtual media Form factor 22 mm x 17 mm * Specifications are subject to change without notice.
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This chapter describes the server management board features and the new technologies it supports.
1.1 Welcome! Thank you for buying an ASUS® ASMB4-iKVM/ASMB4-SOL PLUS server management board! The ASUS ASMB4-iKVM/ASMB4-SOL PLUS is an Intelligent Platform Management Interface (IPMI) 2.0-compliant board that allows you to monitor, control, and manage a remote server from the local or central server in your local area network (LAN). With ASMB4-iKVM/ASMB4-SOL PLUS plugging in a server motherboard, you can completely and efficiently monitor your server in realtime.
1.3 1. IPMI 2.0 • System interface (KCS) • System Event Log (SEL) • • • • • • • • • • 2. 3. 4. 5.
8. 9. KVM over Internet (ASMB4-iKVM only) • ������������������������ Web-based remote console Remote Update BIOS (ASMB4-iKVM only) • Use Remote floppy to update BIOS 10. Remote Storage (Virtual Media) (ASMB4-iKVM only) • ������������������������������������������������������� Support two remote storage for USB/CD-ROM/DVD and image 11. Remote Install OS (ASMB4-iKVM only) • Use remote storage to remote install OS * A power supply supported PMBus and PSMI is necessary.
1.5 Network setup The ASMB4-iKVM/ASMB4-SOL PLUS server management board installed on the remote server connects to a local/central server via direct LAN connection or through a network hub. Below are the supported server management configurations.
1-6 Chapter 1: Product introduction
This chapter provides instructions on how to install the board to the server system and install the utilities that the board supports.
2.1 Before you proceed Take note of the following precautions before you install the server management board to the remote server system. 2.2 • Unplug the server system power cord from the wall socket before touching any component. • Use a grounded wrist strap or touch a safely grounded object or to a metal object, such as the power supply case, before handling components to avoid damaging them due to static electricity. • Hold components by the edges to avoid touching the ICs on them.
3. Press the board firmly until it is completely seated in place. 4. When installed, the board appears as shown. 5. Reinstall the remote server system cover, then connect the power plug to a grounded wall socket. Everytime after the AC power is re-plugged, you have to wait for about 30 seconds for the system power up. 6. Insert the LAN cable plug to the LAN port for server management. Refer to the Appendix for the location of the LAN port for server management. 7.
2.3 Firmware update and IP configuration You need to update the ASMB4-iKVM/ASMB4-SOL PLUS firmware and configure IP source before you start using the ASMB4-iKVM/ASMB4-SOL PLUS board. 2.3.1 Firmware update To update the firmware: 1. 2. 3. 4. 5. Insert the support CD into the optical drive. Restart the remote server, then press during POST to enter the BIOS setup. Go to Boot menu and set the Boot Device Priority item to [CD-ROM].
7. �������������������������������������������������������������������� When the update process is completed, the following screen appears��. NewImageSize = 10MB, offs = 0 Uploading Firmware Image : Completed Flash Update Completed Device Firmware has been upgraded successfully. The device will be reset within 10 seconds for the new firmware to take effectt. Press any key to continue ... You may update firmware from the web-based user interface. Refer to page 4-13 for details.
2.3.2 1. 2. Configure BMC IP source static IP Repeat the step 1-4 in the previous sub-section. On reboot, the main menu appears.Select Configure BMC IP Source Static IP for LAN1 (or LAN3), and press to enter the sub-menu.
2.3.3 1. 2. Configure BMC IP source DHCP Repeat the step 1-4 in the previous sub-section. On reboot, the main menu appears.Select Configure BMC IP Source DHCP for LAN1 (or LAN3), and press to enter the sub-menu.
2.4 BIOS configuration You need to adjust the settings in the BIOS setup of the remote server for correct configuration and connection to the central server. • Update the remote server BIOS file following the instructions in the motherboard/system user guide. Visit the ASUS website (www.asus.com) to download the latest BIOS file for the motherboard. • The BIOS setup screens shown in this section are for reference purposes only, and may not exactly match what you see on your screen.
Set LAN1/LAN3 Configuration Allows you to set the BMC LAN Parameter settings. Server BIOS SETUP UTILITY LAN Configuration. Current Current Current Current IP address in BMC: Subnet Mask in BMC: Gateway Address in BMC: MAC address in BMC: IP Address Source IP Address Subnet Mask Gateway Address Options 010.010.010.243 255.255.255.0 000.000.000.000 00.10.20.3D.40.5F DHCP Mode Static Mode [Static Mode] [000.000.000.000] [000.000.000.000] [000.000.000.
View BMC System Event Log Allows you to view all the events in the BMC event log. It will take a maximum of 15 seconds to read all the BMC SEL records. Server Total Number Of Entries: BIOS SETUP UTILITY 700 SEL Entry Number: [ 1] SEL Record ID: 0001 SEL Record Type: 02 (System Event) Event Timestamp: Jan 1, 2008 00:00:06 Generator ID: 0020 Event Message Rev: 04 (IPMI ver 1.
2.5 Running the ASMC4 utility The ASMC4 utility allows you to update the ASMB4-iKVM/ASMB4-SOL PLUS firmware, configure the LAN setting for the remote server and change the user name/ password in DOS environment. This utility is available from the support CD that came with the package. To run the ASMC4 utility: 1. 2. 3. 4. 5. Insert the support CD into the optical drive. Restart the remote server, then press during POST to enter the BIOS setup.
ASMC4 Help Menu options Options -kcs[smic/bt/pci_smic] NetFn command data.... -bmc_ip_source source[1: Static, 2: DHCP] -bmc_ip [ip_addr] (e.g., bmc_ip 10.10.10.20) -bmc_mask [ip_mask] (e.g., bmc_mask 255.255.255.0) -bmc_gateway [ip_addr] (e.g., bmc_gateway 10.10.10.254) -pet_ip_mac [ip_addr] [mac_addr] (e.g., pet_ip_mac 10.10.10.20 010203040506) -bmc_ip_s_lan1 source[1: Static, 2: DHCP] -bmc_ip_lan1 [ip_addr] (e.g., bmc_ip 10.10.10.20) -bmc_mask_lan1 [ip_mask] (e.g., bmc_mask 255.255.255.
2.5.1 Configuring the LAN controller Before you can establish connection to the ASMB4-iKVM/ASMB4-SOL PLUS board, you must configure the LAN port for server management used by the remote server to connect to the local/central server. To configure the LAN port of the remote server: 1. 2. 3. Run the ASMC4 utility from the support CD following the instructions in the previous section. Set IP source: (a) Type asmc4 -bmc_ip_source 1 if you want to set a static IP address.
2.5.2 Configuring the user name and password You may change your user name and password from the ASMC4 utility. To change the user name and password: 1. Follow steps 1-5 on page 2-11. 2. ��������� When the C:> prompt appears,������ type asmc4 -user_name xxxxx, then press to change the user name. C:\>asmc4 -user_name super Detect MotherBoard -> (Z8PE-D12X) Detect KCS Interface Change User Name to super C:\> 3. 4.
2.6 Software installation You can monitor, control, or manage the remote server from the local/central server using the ASUS Remote Console (ARC). The ARC is a web-based application available from the support CD that came with theASMB4-iKVM/ASMB4-SOL PLUS package. You must install the ARC on the local/central server to access the remote server. Before you install the ARC: 2.6.1 • For SNMP Service: View the Platform Event Trap (PET) information. See page 3-17 for details.
3. Follow the installation wizard instructions to install the utility. 2.6.2 Launching ARC To launch the ARC utility, click Start > All Programs > ASUS Remote Console > ASUS Remote Console from the Windows® desktop. OR Double-click the ASUS Remote Console icon on the Windows® desktop.
This chapter tells you how to use the ASUS Remote Console (ARC) that the server management board supports.
3.1 ASUS Remote Console (ARC) The ASUS Remote Console (ARC) is a web-based utility, designed for ASMB4-SOL PLUS, that allows you to monitor the remote host’s hardware information including temperatures, fan rotations, voltages, and power. This application also lets you instantly power on/off or reset the remote server. 1 2 3 4 5 6 The ARC window is made up of six sections: 1. Menu bar 3. Navigation window 2. 4. 5. 6.
3.1.1 ARC sections Menu bar The Menu bar contains all the commands for the ARC application. Click on a menu to display a list of available commands.
Some remote server information (such as the SDR) contains several sensor groups such as Temperature, Voltage, and Fan. Click before the remote server information to display the sensor groups. Click before a sensor group to display individual sensors. For example, clicking before the sensor group Temperature displays the CPU1 and system temperatures. Sensor groups Sensors You can also change the server directory display by clicking the buttons on top of the window.
Detail/SEL window The Detail/SEL window displays the detailed SDR and FRU information, and the SEL (System Event Log). The window provides the link for detailed sensor information or system events and allows you to adjust the sensor threshold values. Event window The Event window displays the Platform Event Trap (PET) received by the ARC. The PET information includes the event index, source IP address, enterprise, community, generic and specific traps, and time ticks.
3.1.2 Connecting to the remote server To connect to the remote server: 1. From the menu bar, click Server, then select Add New Server Node. An Add new server connection window appears. 2. Type the remote server name and IP address on the fields. Click Save Default to set the remote server connection as the default. Otherwise, click OK to continue or Cancel to close the window. The default server connection name and IP address are automatically displayed everytime you add a new server connection. 3.
The navigation window displays the remote server. The available remote server information are displayed on the Detail/SEL window. 4. • • • 5. 6. Use any of these options to connect to the server: Click before the remote server to display the remote server information, then select from the list. Double-click a remote server information from the Detail/SEL window. Click Server, then select Connect. When prompted, enter the default user name (admin) and password (admin).
3.1.3 Retrieving sensor information The Sensor Data Record (SDR) provides remote server system information through available sensors including CPU/system/power temperatures, voltages, fan speeds, chassis intrusion, etc. The SDR also provides information on the sensor location (e.g. CPU1, CPU2, FAN1), event generation, and access information. To retrieve a sensor information: 1. From the navigation window, click remote server information. before the server name to display the 2.
3. Click More. A sensor window appears displaying additional information on the sensor. The Information tab displays basic sensor information including the sensor name, current status, current value, and sensor type. The tab also displays the sensor record ID and SDR version. 4. Click the Settings tab to adjust the sensor threshold values. Click on the up/down arrow button after each threshold value to adjust. Click OK to close the window.
3.1.4 Displaying FRU information The Field Replaceable Unit (FRU) information provides the manufacturer, product name, and/or serial number of various modules and components installed on the remote server. For example, the FRU feature can display the remote server motherboard name, model, and serial number. You can use this feature when retrieving information on a module or component installed on the remote server.
3.1.5 Displaying system event logs The System Event Log (SEL) is a non-volatile storage area where all remote server system events are stored for real-time tracking or later retrieval. The ARC application can display system events for efficient remote server monitoring and troubleshooting. To display the sytem events: 1. From the navigation window, click before the server connection, then click SEL. The status bar displays the progress of the SEL download.
3.1.6 Using Remote Console The Remote Console feature lets you see the remote server screen (text only) and is useful when you adjust the remote server BIOS settings. To display the remote server console, press the Remote Console item from the navigation window. The remote server screen appears in the Detail/SEL window.
3.1.7 Displaying all remote server sensors To display all remote server sensors in graphical format: 1. 2. From the navigation window, click remote server information. before the server name to open the Click All Sensors value. All remote server sensors are displayed on the Information window in graphical format. The color bar represents the upper/lower threshold values of each sensor. The green pointer indicates the current value of the sensor.
3.1.8 Adjusting the monitoring settings The ARC application allows you to adjust the remote server monitoring settings including SEL polling, SDR reading, and PET. To adjust the monitoring settings: 1. Click Server on the menu bar, then select General Setting from the drop‑down menu. A Server Settings window appears. 2. Click on the up/down arrow button after each setting to adjust the value. 3. 3-14 Click OK to save your changes and close the window; otherwise, click Cancel to ignore your changes.
Enabling the Short Message Service (SMS) feature The Short Message Service or SMS feature allows you to receive Platform Event Trap (PET) information on your smart phone (ASUS P505). You must install Microsoft® ActiveSync® before you enable the SMS feature. Visit www.microsoft.com to download Microsoft® ActiveSync® . To enable the SMS feature: 1. 2. Check the box before the Enable Short Message Service feature. Click Set Phone List. 1 3. 4.
3.1.9 Controlling the remote server power ARC allows you to power up, power down, or reset the remote server using the power menu. Before turning off or resetting the remote server, make sure that it is not being used and that no application is currently running on it to avoid data loss. To power down the remote server: 1. Click Control on the menu bar, then select Power down from the drop-down menu. Power Down OR Click the power down button on the tool bar. 2.
3.1.10 Viewing PET information The Platform Event Trap or PET is an SNMP trap used for system management alerts. When the ARC receives a PET, it displays a pop-up window notifying you of the alert and its source (IP address). Right-click the window to close. You need to install an SNMP service to the remote server to receive PET information. To install an SNMP service to the remote service: 1. On the Windows® taskbar, click Start > All Programs > Control Panel. 2. Double-click Add/Remove Programs.
4. Double-click Management and Monitoring Tools. 5. Select Simple Network Management Protocol (SNMP). 6. 3-18 Click OK.
Important notice for Windows® XP (Service Pack 2) users If the local server system is behind a firewall, you must create a UDP port to receive PET information. To create a UDP port: 1. 2. 3. 4. 5. 6. 7. 8. Double-click the My Computer icon from the Windows® desktop, then click the My Network Places link. Click the View network connections link, then select the LAN connection the remote server system is using. Right-click the LAN connection, then select Properties from the drop-down menu.
3.2 ASUS Host Management Controller Setup The ASUS Host Management Controller Setup utility provides precise configuration and basic functions including System Event Log (SEL) generation and System Data Record (SDR) reading in DOS mode. This utility also supplies configuration sequences for the type of host interface as well as direct real-time monitoring of system information including CPU temperature(s), fan speeds and system voltages. 3.2.
3.2.2 Command fields The utility menu bar has five commands: Initial, View, Set, Monitor and Help. You can select a command using the left or right arrow button on the keyboard. After selecting a command, use the down arrow key to display available options. Select a command, then press to execute. Menu options Menu bar 3.2.3 Initial The Initial command allows you to clear the SEL information or exit the utility.
To view the System Event Log (SEL): 1. 2. 3. Select BMC SEL from the View command option, then press . A complete list of system event records appear on the left pane. The right pane displayes the SEL information. The number on the left bottom of the window shows the system event displayed in the right window pane over the total number of system events in the remote host. Use the down arrow key to display the next sensor event. Press to return to the main screen.
To view the BMC information: 1. 2. 3. Select BMC Info from the View command option, then press . A list of BMC information appears on the left pane. Use the down arrow button to select a BMC information. The BMC information is displayed in the right pane. Press to return to the main screen.
3.2.5 Set The Set command controls the host interface type and the correct BMC time. To select the host interface: 1. 2. Select Host Interface from the Set command option, then press . The screen displays the host interfaces supported by the server management board. Use the down arrow button to select a host interface, then press . You can select from the following interfaces: KCS Interface SMIC Interface BT Interface PCI Interface KCS2 Interface 3.
3.2.6 Monitor The Monitor command displays real-time data on the remote server system and CPU temperatures, voltages, and fan speeds. To display a remote server information: 1. 2. 3. Select a sensor from the Monitor command options, then press . A list of server information appears on the left pane. Use the down arrow button to select a monitor information. The selected monitor information details are displayed in the right pane. Press to return to the main screen.
3.2.7 Help The Help command displays the available utility options, utility version, and copyright information.
This chapter tells you how to use the web-based user interface that the server management board supports.
4.1 Web-based user interface The web-based user interface allows you to easily monitor the remote server’s hardware information including temperatures, fan rotations, voltages, and power. This application also lets you instantly power on/off or reset the remote server. You should install JRE on remote console first before using web-based management. You can find JRE from the folder JAVA of the ASMB4-iKVM support CD. You can also download JRE from http://java.sun.com/javase/ downloads. 4.1.1 1. 2. 3.
4.1.2 Using the utility The web-based graphics user interface displays when you login in the utility successfully. 1 3 5 4 2 1. Menu bar: Click a menu to display available function lists. 3. Function title: Displays the function title. 2. 4. 5. Function list: Click each function key to start using its specific functions. Section information: Displays the section information. Help menu: Click to display the brief description of the selected function.
4.2 System Information This section contains the general information about the system, such as firmware version and detected FRUs. 4.3 Server Health This section contains the data related to the server health, such as the sensor readings and event log.
4.3.1 Sensor Readings (with Thresholds) The Sensor Readings page displays the system sensor information, including readings and status. 1 2 1. 2. 3. 3 Select a sensor type category: Allows you to select the type of sensor readings to be displayed in the list. Refresh: Click to refresh the sensor readings. Show/Hide Thresholds: Click to display/hide the thresholds assigned to each sensor. 4.3.2 Event Log The Event Log page displays a table of system event log. 1 2 1. 2.
4.4 Configuration This section allows you to configure the system settings. Click each function key to start using its specific functions 4.4.1 Alerts The Alert page allows you to configure the alert settings. Click to select the alert item that you want to modify, delete or send a test alert. 1 3 1. Modify: Click Modify button to redirect the alert modification page. 3. Delete: Click to delete the selected test alert. 2.
4.4.2 PEF The PEF page allows you to modify the PEF configuration. 1 1. Modify: Click to select the PEF item that you want to modify. Click Modify button to redirect the PEF modification page. 4.4.3 Mouse Mode The Mouse Mode page allows you to select the mouse mode. 1 1. Save: Select the desired mouse mode, and then click Save to apply the setting.
4.4.4 Network The Network page allows you to configure the network settings. 1 2 3 1. 2. 3. MAC Address: Select whether to obtain the IP address automatically or manually configure one. IP Address/Subnet Mask/Default Gateway: If you configure a static IP, enter the requested address, subnet mask and gateway in the given field. Save: Click to apply the settings. 4.4.5 SMTP The SMTP page allows you to configure SMTP mail server.
4.4.6 SSL The SSL page displays the default certificate and private key, and allows you to upload the new SSL certificate. Click Browse to navigate the available certificate, and the click Upload to upload a new SSL certificate. 4.4.7 Users The Users page allows you to configure the user settings and its privilege for this server. 1 1. 2. 3. 2 3 Add User: Select an empty item, and then click this button to add a new user.
4.4.8 Configure LDAP The Configure LDAP page allows you to authenticate and access the LDAP server. Complete the settings in the given field, and then click Save to apply the settings. 4.4.9 Date/Time/NTP Settings The Date/Time/NTP Settings page allows you to set up specific date/time or synchronize the date/time with NTP server.
4.5 Remote Control This section allows you to perform remote operations on the server. Click each function key to start using its specific functions 4.5.1 Console Redirection The Console Redirection page allows you to launch the redirection console and manage the server remotely. Click Java Console to open the java redirection window.
4.5.2 Server Power Control The Server Power Control page displays the current server power status and allows you to change the current settings. Select the desired option, and then click Perform Action to execute the selected action. 4.5.3 Capture Screen Video The Capture Screen Video page allows you to view the latest redirection screenshot. Click Capture Screen to view the screen capture data.
4.5.4 Chassis Identify Command The Chassis Identify Command page allows you to perform a chassis identify command control operation. Enter identify interval in seconds, and then click Perform Action to start the command. 4.6 Maintenance This section allows you to perform the firmware update for the remote server. Click Enter Update Mode to open the firmware update window.
4.7 Languages This section allows you to select the language for the web-based application. Select the available language from the list, and then click Apply to perform the setting.
The Appendix shows the location of the LAN ports for server management and BMC connector on server motherboards. This section also presents common problems that you may encounter when installing or using the server management board.
A.1 BMC connector The ASUS server motherboards that support the ASMB4-iKVM/ASMB4-SOL PLUS comes with a Baseboard Management Controller (BMC) connector. Refer to the illustration below to locate the BMC connector on different server motherboards.
A.2 LAN ports for server management The ASUS server motherboards that support the ASMB4-iKVM/ASMB4-SOL PLUS comes with three LAN (RJ-45) ports: one for network connection and the other two for server management. For easy identification, the LAN ports for server management are LAN1 and LAN3 ports. You must use the LAN1 and LAN3 ports for server management to connect the remote server to the local/central host (direct LAN connection) or to the network hub or router.
A.3 Troubleshooting This troubleshooting guide provides answers to some common problems that you may encounter while installing and/or using ASUS ASMB4-iKVM/ASMB4-SOL PLUS. These problems require simple troubleshooting that you can perform by yourself. Contact the Technical Support if you encounter problems not mentioned in this section. Problem Solution The local/central server cannot connect to the ASMB4-iKVM/ASMB4-SOL PLUS board 1. 2. 3. A-4 Check if the LAN cable is connected to the LAN port.
A.4 BMC Sensor Codes Table Category 1: Memory related Sensor No.
Category 2: HDD / Backplane related A-6 Sensor No.
Category 3: Power Supply related Sensor No.
Category 4: Hardware Monitor / System Sensor related A-8 Sensor No.
0x3F P2VTT (For Intel DP platform only -- ASUS Z8 series server MB; -E6 server system) Voltage 0x02 Threshold(0x01) Lower Non-critical - going low Lower Critical - going low Upper Non-critical - going high Upper Critical - going high 0x40 +3.3VSB Voltage 0x02 Threshold(0x01) Lower Non-critical - going low Lower Critical - going low Upper Non-critical - going high Upper Critical - going high 0x41 +1.
A-10 0xA2 FRNT_FAN1 FAN 0x04 Threshold(0x01) Lower Non-critical - going low Lower Critital - going low 0xA3 FRNT_FAN2 FAN 0x04 Threshold(0x01) Lower Non-critical - going low Lower Critital - going low 0xA4 FRNT_FAN3 FAN 0x04 Threshold(0x01) Lower Non-critical - going low Lower Critital - going low 0xA5 FRNT_FAN4 FAN 0x04 Threshold(0x01) Lower Non-critical - going low Lower Critital - going low 0xA6 REAR_FAN1 FAN 0x04 Threshold(0x01) Lower Non-critical - going low Lower Critital - go
