AXIOMTEK IMB520R User Manual
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AXIOMTEK IMB520R User Manual

Intel socket 1151 coretm i7/ i5/ i3 / pentium / celeron processors atx industrial motherboard
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IMB520R / 521R
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Intel
Socket 1151 Core
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Pentium
/ Celeron
Processors ATX Industrial
Motherboard
User's Manual

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Summary of Contents for AXIOMTEK IMB520R

  • Page 1 IMB520R / 521R ® Intel Socket 1151 Core i7/ i5/ i3 / ® ® Pentium / Celeron Processors ATX Industrial Motherboard User’s Manual...
  • Page 2 Axiomtek does not make any commitment to update the information in this manual. Axiomtek reserves the right to change or revise this document and/or product at any time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of Axiomtek Co., Ltd.

  • Page 3: Esd Precautions

    To discharge static electricity from your body.  Wear a grounding wrist strap, available from most electronic component stores, when handling boards and components. Trademarks Acknowledgments Axiomtek is a trademark of Axiomtek Co., Ltd. ® ® Intel and Celeron are trademarks of Intel Corporation.

  • Page 4: Table Of Contents

    Table of Contents Disclaimers ...................... ii ESD Precautions ..................... iii Chapter 1 Introduction ..........1 Features ....................2 Specifications ..................2 Packing list .................... 4 Chapter 2 Board and Pin Assignments ....5 Board Layout ..................5 Rear I/O ....................6 Block Diagram ..................
  • Page 5 2.5.21 VGA and DVI-D Connector (CN3) ............21 2.5.22 TPM Pin Header (CN23) ................. 22 2.5.23 Internal Mouse Connector (CN9) ............22 2.5.24 Internal Keyboard Connector (CN8) ............22 Chapter 3 Hardware Description ......23 Microprocessors .................. 23 BIOS....................23 System Memory ..................
  • Page 6 This page is intentionally left blank.

  • Page 7: Introduction

    Chapter 1 Introduction The IMB520R / 521R is an advanced ATX industrial motherboard based on the 9th/8th Generation Intel® Core™ i7/ i5/ i3/ Pentium® and Celeron® processors (Coffeelake) in an LGA1151 socket and comes with an Intel® Q370 chipset. Specially designed for optimal...

  • Page 8: Features

    IMB520R / 521R LGA1151 ATX Motherboard Features LGA1151 socket 9th/8th Generation Intel® Core™ i7/i5/i3, Pentium® and Celeron®  processors (Coffeelake) up to 95W  4 x DDR4 2666/2400MHz DIMM with maximum memory capacity up to 128GB (max. 32GB per slot) ...
  • Page 9 IMB520R / 521R LGA1151 ATX Motherboard  Serial ATA  4 x SATAIII with RAID 0/1/5/10.  Audio  Realtek ALC662 HDA Codec.  Supports MIC-in/line-in/line-out.  Display  1 x 15-pin D-Sub as VGA connector. Resolution max. up to 1920x1200 @60Hz.

  • Page 10: Packing List

    IMB520R / 521R LGA1151 ATX Motherboard Packing list  Bulk packing  1 x Motherboard  1 x I/O bracket  Gift box  1 x Motherboard  1 x I/O bracket  1 x Driver DVD Board and Pin Assignments...

  • Page 11: Board And Pin Assignments

    IMB520R / 521R LGA1151 ATX Motherboard Chapter 2 Board and Pin Assignments Board Layout Top side Board and Pin Assignments...

  • Page 12: Rear I/O

    IMB520R / 521R LGA1151 ATX Motherboard Rear I/O I/O side I/O bracket Board and Pin Assignments...

  • Page 13: Block Diagram

    IMB520R / 521R LGA1151 ATX Motherboard Block Diagram Board and Pin Assignments...

  • Page 14: Jumper Settings

    A square pad, which you can find on the back of the motherboard, is usually used for pin 1. Before applying power to the IMB520R / 521R series, make sure all of the jumpers are in factory default position. Below you can find a summary table of all jumpers and onboard default settings.

  • Page 15: Clear Cmos (Jp8)

    IMB520R / 521R LGA1151 ATX Motherboard PCIe x16 slot 1-2 Close JP10,JP11 Default: x16 1-2 Close 2.4.1 Clear CMOS (JP8) This jumper (3x1-pin p=2.54mm) allows you to clear the Real Time Clock (RTC) RAM in CMOS. You can clear the CMOS memory of date, time, and system setup parameters by erasing the CMOS RTC RAM data.

  • Page 16: Com1 Mode Select (Jp4, Jp5, Jp6)

    IMB520R / 521R LGA1151 ATX Motherboard 2.4.3 COM1 Mode Select (JP4, JP5, JP6) Use these jumpers (3x2-pin p=2.54mm) to set COM1 port to operate in RS-232, RS-422 or RS-485 communication mode. Function Setting JP6 1-2 close RS-232 mode JP4 3-5, 4-6 close...

  • Page 17: Connectors

    IMB520R / 521R LGA1151 ATX Motherboard Connectors Signals go to other parts of the system through connectors. Loose or improper connection might cause problems, Make sure all connectors are properly and firmly connected. Here is a summary table showing the connectors on the hardware.

  • Page 18: Keyboard And Ps/2 Mouse Connector (Cn1)

    IMB520R / 521R LGA1151 ATX Motherboard 2.5.1 Keyboard and PS/2 Mouse Connector (CN1) The board supports a keyboard and mouse interface. Connector CN1 is a DIN connector for PS/2 keyboard connection via a Y-Cable. Signal Keyboard Data Mouse Data Keyboard Clock Mouse Clock 2.5.2...

  • Page 19: Gpio Header (Cn25)

    IMB520R / 521R LGA1151 ATX Motherboard 2.5.3 GPIO Header (CN25) This header (5x2-pin p=2.00mm) is for digital I/O interface. Signal Signal 1 3 5 7 9 DIO1 DIO8 DIO2 DIO7 2 4 6 8 10 DIO3 DIO6 DIO4 DIO5 The default value of DIO1 to DIO8 is set as GPI with high level.

  • Page 20: Lan And Usb 3.1 Connectors (Cn5 And Cn6)

    IMB520R / 521R LGA1151 ATX Motherboard 2.5.5 LAN and USB 3.1 Connectors (CN5 and CN6) The motherboard comes with two high performance plug and play Ethernet interfaces (RJ-45) which are fully compliant with the IEEE 802.3 standard. Connection can be established by plugging one end of the Ethernet cable into this RJ-45 connector and the other end to a 1000/100/10 Base-T hub.

  • Page 21: Front Audio Header (Cn11)

    IMB520R / 521R LGA1151 ATX Motherboard 2.5.7 Front Audio Header (CN11) This is a front audio header (5x2-pin p=2.00mm) for convenient connection and control of audio devices. Signal Signal MIC_IN LINE_IN_L LINE_IN_R AUD_OUT_L AUD_OUT_R 2.5.8 PCIe x16 slot (CN14) CN14...

  • Page 22: Displayport And Hdmi Connector (Cn2)

    IMB520R / 521R LGA1151 ATX Motherboard 2.5.11 DisplayPort and HDMI Connector (CN2) CN2 is a double-deck connector comprising an upper connector for DisplayPort (CN2A) and a lower connector for HDMI (CN2B). Signal Signal LANE 0 DATA2 CN2A LANE 0# DATA2#...

  • Page 23: Sata 3.0 Connectors (Sata1 ~ Sata4)

    IMB520R / 521R LGA1151 ATX Motherboard 2.5.13 SATA 3.0 Connectors (SATA1 ~ SATA4) These Serial Advanced Technology Attachment (Serial ATA or SATA) connectors are for SATA 3.0 interface allowing up to 6.0Gb/s data transfer rate. It is a computer bus interface for connecting to devices such as hard disk drive.

  • Page 24: Power Input Connectors (Atx2 And Cn26)

    IMB520R / 521R LGA1151 ATX Motherboard 2.5.16 Power Input Connectors (ATX2 and CN26) Steady and sufficient power can be supplied to all components on the motherboard by connecting the power connector. Please make sure all components and devices are properly installed before connecting the power connector.

  • Page 25: Pci-Express X4 Slots (Pcie1~Pcie4)

    IMB520R / 521R LGA1151 ATX Motherboard 2.5.17 PCI-Express x4 Slots (PCIe1~PCIe4) This motherboard has two PCI-Express x4 slots. Signal Signal +12V_PS +12V_PS +12V_PS +12V_PS +12V_PS SMB_CLK_RESUME SMB_DATA_RESUME +3.3V_PS +3.3V_PS +3.3V_SB +3.3V_PS PCH_WAKE_N PWRGD CLKOUT_PCIE_P5 PCIE1_SLOT1_TX_DP_C CLKOUT_PCIE_N5 PCIE1_SLOT1_TX_DN_C PCIE1_SLOT1_RX_DP_C PCIEX4_SLOT1_PRSNT2_N PCIE1_SLOT1_RX_DN_C...

  • Page 26: Pci-Express X1 Slots (Pcie5)

    IMB520R / 521R LGA1151 ATX Motherboard 2.5.18 PCI-Express x1 Slots (PCIe5) This motherboard has two PCI-Express x1 slots. Signal Signal +12V_PS +12V_PS +12V_PS +12V_PS +12V_PS SMB_CLK_RESUME SMB_DATA_RESUME +3.3V_PS +3.3V_PS +3.3V_SB +3.3V_PS PCH_WAKE_N PWRGD CLKOUT_PCIE_P8 PCIE5_SLOT_TX_DP_C CLKOUT_PCIE_N8 PCIE5_SLOT_TX_DN_C PCIE5_SLOT_RX_DP_C PCIE5_SLOT_RX_DN_C 2.5.19 Fan Connectors (FAN1~FAN3) This motherboard has three fan connectors.

  • Page 27: Internal Usb 3.1 Gen1 Connector (Cn21)

    IMB520R / 521R LGA1151 ATX Motherboard 2.5.20 Internal USB 3.1 Gen1 Connector (CN21) The CN21 is a 19-pin internal connector for installing versatile USB 3.1 compliant peripherals. Signal Signal VBUS0 SSRX5- VBUS1 SSRX5+ SSRX6- SSRX6+ SSTX5- SSTX5+ SSTX6- SSTX6+ USB10-...

  • Page 28: Tpm Pin Header (Cn23)

    IMB520R / 521R LGA1151 ATX Motherboard 2.5.22 TPM Pin Header (CN23) These are 7x2-pin p=2.0mm headers for SPI interface with an AX93515 TPM module. Signal Signal VCC3P3 13 11 9 7 5 3 1 MOSI MISO PIRQ 14 12 10 8 6 4 2 The screw type is M2*0.4.

  • Page 29: Chapter 3 Hardware Description

    The IMB520R / 521R series uses AMI Plug and Play BIOS. System Memory The IMB520R / 521R supports four 288-pin DDR4 DIMM sockets for maximum memory capacity up to 128GB DDR4 SDRAMs. The memory module comes in sizes of 2GB, 4GB, 8GB, 16GB and 32GB.
  • Page 30 IMB520R / 521R LGA1151 ATX Motherboard This page is intentionally left blank. Hardware Description...

  • Page 31: Ami Bios Setup Utility

    IMB520R / 521R LGA1151 ATX Motherboard Chapter 4 AMI BIOS Setup Utility The AMI UEFI BIOS provides users with a built-in setup program to modify basic system configuration. All configured parameters are stored in a flash chip to save the setup information whenever the power is turned off.
  • Page 32 IMB520R / 521R LGA1151 ATX Motherboard Hot Keys Description  Left/Right The Left and Right <Arrow> keys allow you to select a setup screen. The Up and Down <Arrow> keys allow you to select a setup screen or sub  Up/Down screen.

  • Page 33: Main Menu

    IMB520R / 521R LGA1151 ATX Motherboard Main Menu When you first enter the setup utility, you will enter the Main setup screen. You can always return to the Main setup screen by selecting the Main tab. System Time/Date can be set up as described below.

  • Page 34: Advanced Menu

    IMB520R / 521R LGA1151 ATX Motherboard Advanced Menu The Advanced menu also allows users to set configuration of the CPU and other system devices. You can select any of the items in the left frame of the screen to go to the sub menus: ►...
  • Page 35 IMB520R / 521R LGA1151 ATX Motherboard  ACPI Settings This screen shows ACPI Settings. ACPI Sleep State Select the ACPI (Advanced Configuration and Power Interface) sleep state. Configuration options are Suspend Disabled and S3 (Suspend to RAM). The default is S3 (Suspend to RAM).
  • Page 36 IMB520R / 521R LGA1151 ATX Motherboard AMT BIOS Features Enable or disable Active Management Technology BIOS features. The default is Enabled.  Trusted Computing Enable or disable security device support. AMI BIOS Setup Utility...
  • Page 37 IMB520R / 521R LGA1151 ATX Motherboard CPU Configuration This screen shows CPU information, and you can change the value of the selected option. Hardware Prefetcher Turn on/off the MLC streamer prefetcher. Adjacent Cache Line Prefetch Turn on/off prefetching of adjacent cache lines.
  • Page 38 IMB520R / 521R LGA1151 ATX Motherboard Turbo Mode Enable/Disable processor Turbo Mode (requires EMTTM enabled too). AUTO means enabled, unless max turbo ratio is bigger than 16 - SKL A0 W/A. C states Enable/Disable CPU Power Management, which allows CPU to go to power saving C-states when it's not 100% utilized.
  • Page 39 IMB520R / 521R LGA1151 ATX Motherboard Video Controls the execution of UEFI and Legacy Video OpROM. Other PCI devices Determines OpROM execution policy for devices other than Network, Storage, or Video.  NCT6106D Hardware Monitor This screen monitors hardware health status.
  • Page 40 IMB520R / 521R LGA1151 ATX Motherboard NCT6106D Super IO Configuration You can use this screen to select options for the Super IO Configuration, and change the value of the selected option. A description of the selected item appears on the right side of the screen.
  • Page 41 IMB520R / 521R LGA1151 ATX Motherboard Serial Port 1~6 Configuration Use these items to set parameters related to serial port 1~6.  PCH-FW Configuration This screen displays ME Firmware information. AMI BIOS Setup Utility...
  • Page 42 IMB520R / 521R LGA1151 ATX Motherboard  PCI Subsystem Settings This screen allows you to set PCI Subsystem mode. PCI Latency Timer Set the value to be programmed into PCI Latency Timer Register. VGA Palette Snoop Enables or Disables VGA Palette Registers Snooping.
  • Page 43 IMB520R / 521R LGA1151 ATX Motherboard  Platform Misc Configuration This screen allows you to set Platform Misc Configuration. Native PCIE Enable Bit - PCIe Native * control\n 0 - ~ Hot Plug\n 1 - SHPC Native Hot Plug control\n 2 - ~ Power Management Events\n 3 - PCIe Advanced Error Reporting control\n 4 - PCIe Capability Structure control\n 5 - Latency Tolerance Reporting control.
  • Page 44 IMB520R / 521R LGA1151 ATX Motherboard SATA Configuration During system boot up, the BIOS automatically detects the presence of SATA devices. In the SATA Configuration menu, you can see the hardware currently installed in the SATA ports. SATA Controller(s) Enable or disable the SATA Controller feature. The default is Enabled.
  • Page 45 IMB520R / 521R LGA1151 ATX Motherboard  Serial Port Console Redirection This screen allows you to set serial port console redirection. AMI BIOS Setup Utility...
  • Page 46 IMB520R / 521R LGA1151 ATX Motherboard  USB Configuration This screen shows USB configuration. USB Devices Displays all detected USB devices. Legacy USB Support Enables Legacy USB support. AUTO option disables legacy support if no USB devices are connected. XHCI Hand-off This is a workaround for OSes without XHCI hand-off support.

  • Page 47: Chipset Menu

    IMB520R / 521R LGA1151 ATX Motherboard Chipset Menu The Chipset menu allows users to change the advanced chipset settings. You can select any of the items in the left frame of the screen to go to the sub menus: ►...
  • Page 48 IMB520R / 521R LGA1151 ATX Motherboard  System Agent (SA) Configuration This screen allows users to configure System Agent (SA) parameters. For items marked with “”, please press <Enter> for more options. Graphics Configuration Open the sub menu for parameters related to graphics configuration.
  • Page 49 IMB520R / 521R LGA1151 ATX Motherboard  Graphics Configuration This screen shows graphics configuration. Primary IGFX Boot Display Select the video device which will be activated during POST (Power-On Self Test). The default is Auto. Internal Graphics Keep IGFX enabled based on the setup options.
  • Page 50 IMB520R / 521R LGA1151 ATX Motherboard  Memory Configuration This screen shows system memory information.  PEG Port Configuration This screen shows PEG Port/POE Port feature information. AMI BIOS Setup Utility...
  • Page 51 IMB520R / 521R LGA1151 ATX Motherboard Max Link Speed Configure PEG 0:1:0 Max Speed. PEG Port Feature Configuration This screen shows PEG port feature configuration. Detect Non-Compliance Device Detect Non-Compliance PCI Express Device in PEG. AMI BIOS Setup Utility...
  • Page 52 IMB520R / 521R LGA1151 ATX Motherboard  PCH-IO Configuration This screen allows you to set PCH parameters. PCH LAN Controller Enable or disable onboard PCH LAN controller. Wake on LAN Enable Enable or disable integrated LAN to wake the system.
  • Page 53 IMB520R / 521R LGA1151 ATX Motherboard  USB Configuration This screen shows USB configuration. XHCI Disable Compliance Mode Provides options to disable Compliance Mode. Default is FALSE to not disable Compliance Mode. Set TRUE to disable Compliance Mode. AMI BIOS Setup Utility...
  • Page 54 IMB520R / 521R LGA1151 ATX Motherboard  PCI Express Configuration This screen shows PCI Express configuration. PCIE 1 -> PCIE1 PCIE 21-> PCIE2 Note AMI BIOS Setup Utility...
  • Page 55 IMB520R / 521R LGA1151 ATX Motherboard PCIe Speed Configure PCIe Speed. ASPM Set the ASPM Level:\nForce L0s - Force all links to L0s State\nAUTO - BIOS auto configure\nDISABLE - Disables ASPM. Detect Non-Compliance Device Detect Non-Compliance PCI Express Device. If enabled, it will take more time at POST time.

  • Page 56: Security Menu

    IMB520R / 521R LGA1151 ATX Motherboard Security Menu The Security menu allows users to change the security settings for the system.  Administrator Password This item indicates whether an administrator password has been set (installed or uninstalled).  User Password This item indicates whether a user password has been set (installed or uninstalled).

  • Page 57: Boot Menu

    IMB520R / 521R LGA1151 ATX Motherboard Boot Menu The Boot menu allows users to change boot options of the system.  Setup Prompt Timeout Number of seconds to wait for setup activation key. 65535(0xFFFF) means indefinite waiting.  Bootup NumLock State Use this item to select the power-on state for the keyboard NumLock.

  • Page 58: Save & Exit Menu

    IMB520R / 521R LGA1151 ATX Motherboard Save & Exit Menu The Save & Exit menu allows users to load your system configuration with optimal or fail-safe default values.  Save Changes and Exit When you have completed the system configuration changes, select this option to leave Setup and return to Main Menu.
  • Page 59 IMB520R / 521R LGA1151 ATX Motherboard  Save Changes When you have completed the system configuration changes, select this option to save changes. Select Save Changes from the Save & Exit menu and press <Enter>. Select Yes to save changes.
  • Page 60 IMB520R / 521R LGA1151 ATX Motherboard This page is intentionally left blank. AMI BIOS Setup Utility...

  • Page 61: Appendix A Watchdog Timer

    IMB520R / 521R LGA1151 ATX Motherboard Appendix A Watchdog Timer About Watchdog Timer Software stability is a major issue in most applications. Some embedded systems are not watched by humans for 24 hours. It is usually too slow to wait for someone to reboot when computer hangs.
  • Page 62 IMB520R / 521R LGA1151 ATX Motherboard Note: If N=00h, the time base is set to second. M = time value 00h: Time-out Disable 01h: Time-out occurs after 1 second 02h: Time-out occurs after 2 seconds 03h: Time-out occurs after 3 seconds FFh: Time-out occurs after 255 seconds If N=08h, the time base is set to minute.

  • Page 63: Appendix Btpm Module Installation

    The TPM 2.0 (Trusted Platform Module 2.0) module is a modularized design applying to the IMB520R / 521R and provides enhanced hardware security for the computer. In this appendix you will learn how to install the TPM 2.0 module into the IMB520R / 521R. Please read and follow the instructions below carefully.
  • Page 64 IMB520R / 521R LGA1151 ATX Motherboard (In the Trusted Computing section, on the first of line will show “TPM2.0 Device Found”, if installation is successful.) b. In the Windows 10 OS environment, enter Device Manager, and select the item of Security devices.
  • Page 65 IMB520R / 521R LGA1151 ATX Motherboard c. In the Windows 10 OS environment, enter Control Panel, select the item of BitLocker Drive Encryption, and enter TPM Administration. The screen will show the information below if installation is successful. TPM Module Installation...
  • Page 66 IMB520R / 521R LGA1151 ATX Motherboard This page is intentionally left blank. TPM Module Installation...

  • Page 67: Appendix C Iamt Settings

    IMB520R / 521R LGA1151 ATX Motherboard Appendix C iAMT Settings ® ® The Intel Active Management Technology (Intel AMT) utilizes built-in platform capabilities and popular third-party management and security applications to let IT administrators remotely discover, repair and better protect their networked computing assets, thus significantly improving IT management efficiency.
  • Page 68 IMB520R / 521R LGA1151 ATX Motherboard You will be asked to change the password before setting ME. Confirm your new password while revising. The new password must consist of eight characters, including at least:  One upper case letter ...

  • Page 69: Iamt Settings

    IMB520R / 521R LGA1151 ATX Motherboard iAMT Settings 1. Select Intel® AMT configuration and press <Enter>. 2. Select Network Setup to configure iAMT. iAMT Settings...
  • Page 70 IMB520R / 521R LGA1151 ATX Motherboard 3. Select TCP/IP to go into Network interface and set it to Enabled. Go into DHCP Mode and set it to Disabled. iAMT Settings...
  • Page 71 IMB520R / 521R LGA1151 ATX Motherboard 4. If DHCP Mode is disabled, complete the following settings:  IP address  Subnet mask ® 5. Go back to Intel AMT Configuration, then select Activate Network Access and press <Enter>. 6. Exit from MEBx after completing the iAMT settings.

  • Page 72: Iamt Web Console

    IMB520R / 521R LGA1151 ATX Motherboard iAMT Web Console On a web browser, type http://(IP ADDRESS):16992, which connects to iAMT Web. Example: http://10.1.40.214:16992 To log on, you will be required to type in your username and password for access to the Web.
  • Page 73 IMB520R / 521R LGA1151 ATX Motherboard Enter the iAMT Web. Click Remote Control, and select commands on the right side. iAMT Settings...
  • Page 74 IMB520R / 521R LGA1151 ATX Motherboard When you have finished using the iAMT Web console, close the Web browser. iAMT Settings...

  • Page 75: Appendix D Configuring Sata For Raid

    IMB520R / 521R LGA1151 ATX Motherboard Appendix D Configuring SATA for RAID Configuring SATA Hard Drive(s) for RAID Function Before you begin the SATA configuration, please prepare:  Two SATA hard drives (to ensure optimal performance, it is recommended that you use two hard drives with identical model and capacity).
  • Page 76 IMB520R / 521R LGA1151 ATX Motherboard Turn on your system, and then press the <Del> button to enter BIOS Setup during running 2.1. POST (Power-On Self Test). If you want to create RAID, just go to the Advanced Settings menu/SATA Configuration, select the “SATA Mode Selection”, and press <Enter> for more options.
  • Page 77 IMB520R / 521R LGA1151 ATX Motherboard Under the Boot Settings menu, set DVD-ROM for First Boot Option to boot DVD-ROM 2.2. after system restarts. Save and exit the BIOS Setup. 2.3. Configuring SATA for RAID...
  • Page 78 IMB520R / 521R LGA1151 ATX Motherboard 3. Configuring RAID by the RAID BIOS. Enter the RAID BIOS setup utility to configure a RAID array. Skip this step and proceed if you do not want to create a RAID. After the POST memory testing and before the operating system booting, a message 3.1.
  • Page 79 IMB520R / 521R LGA1151 ATX Motherboard After entering the “Create Volume Menu” screen, you can type the disk array name with 3.3. 1~16 letters (letters cannot be special characters) in the item “Name”. When finished, press <Enter> to select a RAID level. There are four RAID levels: RAID0, 3.4.
  • Page 80 IMB520R / 521R LGA1151 ATX Motherboard Set the stripe block size. The KB is the standard unit of stripe block size. The stripe block 3.5. size can be 4KB to 128KB. After the setting, press <Enter> for the array capacity.
  • Page 81 IMB520R / 521R LGA1151 ATX Motherboard When prompting for confirmation, press <Y> to create this volume, or <N> to cancel the 3.7. creation. After the creation is completed, you will see detailed information about the RAID Array in the Disk/Volume Information section, including RAID mode, disk block size, disk name, and disk capacity, etc.
  • Page 82 IMB520R / 521R LGA1151 ATX Motherboard Delete RAID volume If you want to delete a RAID volume, select the “Delete RAID Volume” option in the Main Menu. Press <Enter> and follow on-screen instructions. Press <Esc> to exit the RAID BIOS utility. Now, you can proceed to install a SATA driver controller and the operating system.

  • Page 83: Appendix E Digital I/O

    IMB520R / 521R LGA1151 ATX Motherboard Appendix E Digital I/O Digital I/O Software Programming  I2C to GPIO PCA9554PW GPIO[3:0] is Output, GPIO[7:4] is Input.  I2C address: 0b0100100x.  IOBASE: 0xF040  Registers: Command byte Command Protocol Function Read byte...
  • Page 84 IMB520R / 521R LGA1151 ATX Motherboard Register 1: Output port register. This register reflects the outgoing logic levels of the pins defined as outputs by Register 3. Bit values in this register have no effect on pins defined as inputs. Reads from this register return the value that is in the flip-flop controlling the output selection, not the actual pin value.

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