ASROCK EPYC3251D4I-2T User Manual
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ASROCK EPYC3251D4I-2T User Manual

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EPYC3251D4I-2T
EPYC3101D4I-2T
EPYC3251D4I-NL
EPYC3101D4I-NL
User Manual
Version 1.0
Published June 2019
Copyright©2019 ASRock Rack INC. All rights reserved.

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Summary of Contents for ASROCK EPYC3251D4I-2T

  • Page 1 EPYC3251D4I-2T EPYC3101D4I-2T EPYC3251D4I-NL EPYC3101D4I-NL User Manual Version 1.0 Published June 2019 Copyright©2019 ASRock Rack INC. All rights reserved.
  • Page 2 In no event shall ASRock Rack, its directors, officers, employees, or agents be liable for any indirect, special, incidental, or consequential damages (including damages for loss of profits, loss of business, loss of data, interruption of business and the like), even if ASRock Rack has been advised of the possibility of such damages arising from any defect or error in the documentation or product.
  • Page 3 Contact Information If you need to contact ASRock Rack or want to know more about ASRock Rack, you’re welcome to visit ASRock Rack’s website at www.ASRockRack.com; or you may contact your dealer for further information. ASRock Rack Incorporation 6F., No.37, Sec. 2, Jhongyang S. Rd., Beitou District,...

  • Page 4: Table Of Contents

    Contents Chapter 1 Introduction Package Contents Specifications Unique Features Motherboard Layout Onboard LED Indicators I/O Panel Block Diagram Chapter 2 Installation Screw Holes Pre-installation Precautions Installation of Memory Modules (DIMM) Expansion Slots (PCI Express Slots) Onboard Headers and Connectors Unit Identification purpose LED/Switch Driver Installation Guide Dual LAN and Teaming Operation Guide M.2_SSD (NGFF) Module Installation Guide (M2_1)
  • Page 5 Advanced Screen 3.3.1 CPU Configuration 3.3.2 Chipset Configuration 3.3.3 Storage Configuration 3.3.4 ACPI Configuration 3.3.5 USB Configuration 3.3.6 Super IO Configuration 3.3.7 Serial Port Console Redirection 3.3.8 H/W Monitor 3.3.9 PSP Firmware Versions 3.3.10 AMD CBS 3.3.11 Instant Flash Server Mgmt 3.4.1 System Event Log 3.4.2 BMC Network Configuration Security...
  • Page 6 4.2.1 Running The Support CD 4.2.2 Drivers Menu 4.2.3 Utilities Menu 4.2.4 Contact Information Chapter 5 Troubleshooting Troubleshooting Procedures Technical Support Procedures Returning Merchandise for Service...

  • Page 7: Chapter 1 Introduction

    In case any modifications of this manual occur, the updated version will be available on ASRock Rack website without further notice. You may find the latest memory and CPU support lists on ASRock Rack website as well. ASRock Rack’s Website: www.ASRockRack.com If you require technical support related to this motherboard, please visit our website for specific information about the model you are using.

  • Page 8: Specifications

    1.2 Specifications EPYC3251D4I-2T / EPYC3101D4I-2T / EPYC3251D4I-NL / EPYC3101D4I-NL MB Physical Status Form Factor Mini-ITX Dimension 6.7'' x 6.7'' (17.02 cm x 17.02 cm) Processor System Support AMD EPYC™ Embedded 3000 Series Processors Chipset System Memory Capacity - 4 x 288-pin DDR4 SDRAM DIMM slots...
  • Page 9 EPYC3251D4I-2T / EPYC3101D4I-2T / EPYC3251D4I-NL / EPYC3101D4I-NL Management ASPEED AST2500 : IPMI (Intelligent Platform Management BMC Controller Interface) 2.0 with ikvm and vMedia support IPMI Dedicated 1 x Realtek RTL8211E for dedicated management LAN GLAN - Watch Dog Features - NMI...
  • Page 10 - Plug and Play (PnP) - ACPI 2.0 Compliance Wake Up Events BIOS Features - SMBIOS 2.8 Support - ASRockRack Instant Flash Hardware Monitor - CPU/DDR/LAN/Storage Temperature Sensing Temperature - MB/Card Side Temperature Sensing - CPU/Rear/Front Fan Tachometer - CPU Quiet Fan (Allow Chassis Fan Speed Auto-Adjust by CPU Temperature) - CPU/Rear/Front Fan Multi-Speed Control Voltage Monitoring: +12V, +5V, +3.3V, CPU Vcore, DRAM,...

  • Page 11: Unique Features

    . With this utility, you can press the <F6> key during the POST or the <F2> key to enter into the BIOS setup menu to access ASRock Rack Instant Flash. Just launch this tool and save the new BIOS file to your USB flash drive, floppy disk or hard drive, then you can update your BIOS only in a few clicks without preparing an additional floppy diskette or other complicated flash utility.

  • Page 12: Motherboard Layout

    64 bit, 288-pin module, Blue) DDR4_A2 DDR4, 64 bit, 288-pin module, White USB 3.1 Gen1 IPMI FAN3 T: USB2 B: USB1 FAN1 (NCSI) X550_LAN1 OCU1 EPYC3251D4I-2T / EPYC3101D4I-2T only X550_LAN2 SATA_4 EPYC3251D4I-2T / EPYC3101D4I-2T only SATA_5 Intel SATA_SGPIO1 X550 NUT110 NUT80 ATX12V3...
  • Page 13 EPYC3251D4I-2T / EPYC3101D4I-2T / EPYC3251D4I-NL / EPYC3101D4I-NL Description Rear Fan Connector (FAN2) Intelligent Platform Management Bus header (IPMB_1) ATX 12V Power Connector (ATX12V1) ATX 12V Power Connector (ATX12V2)*** PSU SMBus (PSU_SMB1) 2 x 288-pin DDR4 DIMM Slots (DDR4_B1, DDR4_B2)* 2 x 288-pin DDR4 DIMM Slots (DDR4_A1, DDR4_A2)*...

  • Page 14: Onboard Led Indicators

    1.5 Onboard LED Indicators FAN2 UID1 DDR4_B1 ( DDR4, 64 bit, 288-pin module, Blue) DDR4_B2 ( DDR4, 64 bit, 288-pin module, White DDR4_A1 ( DDR4, 64 bit, 288-pin module, Blue) DDR4_A2 DDR4, 64 bit, 288-pin module, White FAN3 FAN1 NUT80 NUT110 PLED PWRBTN HDLED RESET...

  • Page 15: I/O Panel

    EPYC3251D4I-2T / EPYC3101D4I-2T / EPYC3251D4I-NL / EPYC3101D4I-NL 1.6 I/O Panel No. Description No. Description UID Switch/LED (UID1) Dedicated IPMI LAN Port* EPYC3251D4I-2T / EPYC3101D4I-2T: 10G LAN RJ-45 Port (LAN1)** VGA Port (VGA1) EPYC3251D4I-NL / EPYC3101D4I-NL: EPYC3251D4I-2T / EPYC3101D4I-2T: 10G LAN RJ-45 Port (LAN2)** USB 3.1 Gen1 Ports (USB3_1_2)
  • Page 16 **There are two LEDs on each LAN port. Please refer to the table below for the LAN port LED indications. ACT/LIN K LED SPEED LED LAN Port 10G LAN Port (LAN1, LAN2) LED Indications Activity / Link LED Speed LED Status Description Status...

  • Page 17: Block Diagram

    EPYC3251D4I-2T / EPYC3101D4I-2T / EPYC3251D4I-NL / EPYC3101D4I-NL 1.7 Block Diagram EPYC3251D4I-2T / EPYC3101D4I-2T...
  • Page 18 EPYC3251D4I-NL / EPYC3101D4I-NL...

  • Page 19: Chapter 2 Installation

    EPYC3251D4I-2T / EPYC3101D4I-2T / EPYC3251D4I-NL / EPYC3101D4I-NL Chapter 2 Installation This is a Mini-ITX form factor (6.7'' x 6.7'', 17.0 cm x 17.0 cm) motherboard. Before you install the motherboard, study the configuration of your chassis to ensure that the motherboard fits into it.

  • Page 20: Installation Of Memory Modules (Dimm)

    2.3 Installation of Memory Modules (DIMM) This motherboard provides four 288-pin DDR4 (Double Data Rate 4) DIMM slots, and supports Dual Channel Memory Technology. 1. For dual channel configuration, you always need to install identical (the same brand, speed, size and chip-type) DDR4 DIMM pairs. 2.
  • Page 21 EPYC3251D4I-2T / EPYC3101D4I-2T / EPYC3251D4I-NL / EPYC3101D4I-NL...

  • Page 22: Expansion Slots (Pci Express Slots)

    2.4 Expansion Slots (PCI Express Slots) There is 1 PCI Express slots on this motherboard. PCIE slot: PCIE7 (PCIE 3.0 x16 slot) is used for PCI Express x16 lane width cards. Installing an expansion card Step 1. Before installing an expansion card, please make sure that the power supply is switched off or the power cord is unplugged.

  • Page 23: Onboard Headers And Connectors

    EPYC3251D4I-2T / EPYC3101D4I-2T / EPYC3251D4I-NL / EPYC3101D4I-NL 2.5 Onboard Headers and Connectors Onboard headers and connectors are NOT jumpers. Do NOT place jumper caps over these headers and connectors. Placing jumper caps over the headers and connectors will cause permanent damage to the motherboard.
  • Page 24 LAN1_ACT# Auxiliary Panel Header This header supports multiple LED_PWR (9-pin ITX _AUX _PAN- functions on the front panel, LED_PWR LAN2_ACT# EL1) including front panel SMB, (see p.6, No. 19) internet status indicator. SYSTEM_FAULT_LED_P SYSTEM_FAULT_LED_N CASEOPEN# Serial ATA3 Connectors These two SATA3 connectors (SATA_4) support SATA data cables for SA TA_4...
  • Page 25 EPYC3251D4I-2T / EPYC3101D4I-2T / EPYC3251D4I-NL / EPYC3101D4I-NL ALERT# PSU SMBus PSU SMBus monitors the SMBCLK +3VSB (PSU_SMB1) status of the power supply, fan (see p.6, No. 5) and system temperature. SMBDATA Serial General Purpose The header supports Serial SCLOCK SLOAD...
  • Page 26 ATX 12V Power This motherboard provides Connectors two 4-pin ATX 12V power (4-pin ATX12V2) connectors. ATX_PWROK PSON# (see p.6, No. 4) ATX_+5VSB *Caution: Misconnection between the ATX12V2 and the ATX12V3 connec- tors may permanently damage the motherboard. SATA Power Connector Please use a SATA power cable (DC-IN mode) to connect this SATA Power...
  • Page 27 EPYC3251D4I-2T / EPYC3101D4I-2T / EPYC3251D4I-NL / EPYC3101D4I-NL DDCD#1 Serial Port Header This COM header supports a TTXD1 RRTS#1 (9-pin COM1) serial port module. RRI#1 (see p.6, No. 21) CCTS#1 DDSR#1 DDTR#1 RRXD1 Clear CMOS Pads This allows you to clear the (CLRMOS1) data in CMOS.

  • Page 28: Unit Identification Purpose Led/Switch

    2.6 Unit Identification purpose LED/Switch With the UID button, You are able to locate the server you’re working on from behind a rack of servers. Unit Identification When the UID button on the purpose LED/Switch front or rear panel is pressed, (UID1) the front/rear UID blue LED indicator will be turned on.

  • Page 29: Dual Lan And Teaming Operation Guide

    EPYC3251D4I-2T / EPYC3101D4I-2T / EPYC3251D4I-NL / EPYC3101D4I-NL 2.8 Dual LAN and Teaming Operation Guide Dual LAN with Teaming enabled on this motherboard allows two single connections to act as one single connection for twice the transmission bandwidth, making data transmission more effective and improving the quality of transmission of distant images.
  • Page 30 2.9 M.2_SSD (NGFF) Module Installation Guide (M2_1) The M.2, also known as the Next Generation Form Factor (NGFF), is a small size and versatile card edge connector that aims to replace mPCIe and mSATA. The Ultra M.2 Socket supports a M.2 SATA3 6.0 Gb/s module or a M.2 PCI Express module up to Gen3 x4 (32Gb/s).
  • Page 31 EPYC3251D4I-2T / EPYC3101D4I-2T / EPYC3251D4I-NL / EPYC3101D4I-NL Step 3 Move the standoff based on the module type and length. Skip Step 3 and 4 and go straight to Step 5 if you are going to use the default nut. Otherwise, release the standoff by hand.

  • Page 32: Chapter 3 Uefi Setup Utility

    Chapter 3 UEFI Setup Utility 3.1 Introduction Th is section explains how to use the UEFI SETUP UTILITY to confi gure your system. Th e UEFI chip on the motherboard stores the UEFI SETUP UTILITY. You may run the UEFI SETUP UTILITY when you start up the computer.

  • Page 33: Navigation Keys

    EPYC3251D4I-2T / EPYC3101D4I-2T / EPYC3251D4I-NL / EPYC3101D4I-NL 3.1.2 Navigation Keys Please check the following table for the function description of each navigation key. Navigation Key(s) Function Description Moves cursor left or right to select Screens Moves cursor up or down to select items...

  • Page 34: Main Screen

    3.2 Main Screen Once you enter the UEFI SETUP UTILITY, the Main screen will appear and display the system overview. The Main screen provides system overview information and allows you to set the system time and date.

  • Page 35: Advanced Screen

    EPYC3251D4I-2T / EPYC3101D4I-2T / EPYC3251D4I-NL / EPYC3101D4I-NL 3.3 Advanced Screen In this section, you may set the configurations for the following items: CPU Configuration, Chipset Configuration, Storage Configuration, ACPI Configuration, USB Configuration, Super IO Configuration, Serial Port Console Redirection, H/W Monitor, PSP Firmware Versions, AMD CBS and Instant Flash.

  • Page 36: Cpu Configuration

    3.3.1 CPU Configuration Node 0 Information View Memory Information related to Node 0 SVM Mode Enable/disable CPU Virtualization. CPB Mode Auto/disable CPB. C6 Mode Enable/disable C6.

  • Page 37: Chipset Configuration

    EPYC3251D4I-2T / EPYC3101D4I-2T / EPYC3251D4I-NL / EPYC3101D4I-NL 3.3.2 Chipset Configuration OnBrd/Ext VGA Select Select between onboard or external VGA support. Onboard LAN1 To enable or disable Onabord LAN. Onboard LAN2 To enable or disable Onabord LAN. PCIE7 Link Width This allows you to select PCIE7 Link Width. The default value is [Auto].
  • Page 38 Above 4G Decoding Enable or disable 64bit capable Devices to be decoded in Above 4G Address Space (only if the system supports 64 bit PCI decoding). SR-IOV Support If system has SR-IOV capable PCIe Devices, this option Enables or Disables Single Root IO Virtualization Support.

  • Page 39: Storage Configuration

    EPYC3251D4I-2T / EPYC3101D4I-2T / EPYC3251D4I-NL / EPYC3101D4I-NL 3.3.3 Storage Configuration In this page, you can configure storage devices.

  • Page 40: Acpi Configuration

    3.3.4 ACPI Configuration PCIE Devices Power On Allow the system to be waked up by a PCIE device and enable wake on LAN. RTC Alarm Power On Use this item to enable or disable RTC (Real Time Clock) to power on the system.

  • Page 41: Usb Configuration

    EPYC3251D4I-2T / EPYC3101D4I-2T / EPYC3251D4I-NL / EPYC3101D4I-NL 3.3.5 USB Configuration Legacy USB Support Use this option to enable or disable legacy support for USB devices. The default value is [Enabled].

  • Page 42: Super Io Configuration

    3.3.6 Super IO Configuration Serial Port 1 Configuration Use this item to set parameters of Serial Port 1 (COM1). Serial Port Use this item to enable or disable the serial port. Serial Port Address Use this item to select an optimal setting for Super IO device. SOL Configuration Use this item to set parameters of SOL.

  • Page 43: Serial Port Console Redirection

    EPYC3251D4I-2T / EPYC3101D4I-2T / EPYC3251D4I-NL / EPYC3101D4I-NL 3.3.7 Serial Port Console Redirection COM1 / SOL Console Redirection Use this option to enable or disable Console Redirection. If this item is set to Enabled, you can select a COM Port to be used for Console Redirection.
  • Page 44 Bits Per Second Use this item to select the serial port transmission speed. The speed used in the host computer and the client computer must be the same. Long or noisy lines may require lower transmission speed. The options include [9600], [19200], [57600] and [115200]. Data Bits Use this item to set the data transmission size.
  • Page 45 EPYC3251D4I-2T / EPYC3101D4I-2T / EPYC3251D4I-NL / EPYC3101D4I-NL Resolution On Legacy OS, the Number of Rows and Columns supported redirection. Redirect After POST When Bootloader is selected, then Legacy Console Redirection is disabled before booting to legacy OS. When Always Enable is selected, then Legacy Console Redirection is enabled for legacy OS.
  • Page 46 Data Bits Parity Stop Bits...

  • Page 47: H/W Monitor

    EPYC3251D4I-2T / EPYC3101D4I-2T / EPYC3251D4I-NL / EPYC3101D4I-NL 3.3.8 H/W Monitor In this section, it allows you to monitor the status of the hardware on your system, includ- ing the parameters of the CPU temperature, motherboard temperature, CPU fan speed, chassis fan speed, and the critical voltage.
  • Page 48 Smart Fan Temp Control Smart Fan Temp x (x means 1 to 11 stage) This allows you to set temperature for each stage. Watch Dog Timer This allows you to enable or disable the Watch Dog Timer. The default value is [Disabled].

  • Page 49: Psp Firmware Versions

    EPYC3251D4I-2T / EPYC3101D4I-2T / EPYC3251D4I-NL / EPYC3101D4I-NL 3.3.9 PSP Firmware Versions You can view information of PSP firmware versions in this page.

  • Page 50: Amd Cbs

    3.3.10 AMD CBS Zen Common Options Use this item to configure Zen Common options. DF Common Options Use this item to configure DF Common options. UMC Common Options Use this item to configure UMC Common options. NBIO Common Options Use this item to configure NBIO Common options. FCH Common Options Use this item to configure FCH Common options.

  • Page 51: Instant Flash

    EPYC3251D4I-2T / EPYC3101D4I-2T / EPYC3251D4I-NL / EPYC3101D4I-NL 3.3.11 Instant Flash Instant Flash is a UEFI flash utility embedded in Flash ROM. This convenient UEFI update tool allows you to update system UEFI without entering operating systems ® first like MS-DOS or Windows .

  • Page 52: Server Mgmt

    3.4 Server Mgmt Wait For BMC Wait For BMC response for specified time out. BMC starts at the same time when BIOS starts during AC power ON. It takes around 90 seconds to initialize Host to BMC interfaces. Inventory Support Use this item to execute inventory function for system.

  • Page 53: System Event Log

    EPYC3251D4I-2T / EPYC3101D4I-2T / EPYC3251D4I-NL / EPYC3101D4I-NL 3.4.1 System Event Log SEL Components Change this to enable ro disable event logging for error/progress codes during boot. Erase SEL Use this to choose options for earsing SEL. When SEL is Full Use this to choose options for reactions to a full SEL.

  • Page 54: Bmc Network Configuration

    3.4.2 BMC Network Configuration BMC Out of Band Access Enabled/Disabled BMC Out of band Access. Lan Channel (Failover) Manual Setting IPMI LAN If [No] is selected, the IP address is assigned by DHCP. If you prefer using a static IP address, toggle to [Yes], and the changes take effect after the system reboots.
  • Page 55 EPYC3251D4I-2T / EPYC3101D4I-2T / EPYC3251D4I-NL / EPYC3101D4I-NL The default login information for the IPMI web interface is: Username: admin Password: admin For more instructions on how to set up remote control environment and use the IPMI man- agement platform, please refer to the IPMI Configuration User Guide or go to the Support website at: http://www.asrockrack.com/support/faq.asp...

  • Page 56: Security

    3.5 Security In this section, you may set or change the supervisor/user password for the system. For the user password, you may also clear it. Supervisor Password Set or change the password for the administrator account. Only the administrator has authority to change the settings in the UEFI Setup Utility. Leave it blank and press enter to remove the password.

  • Page 57: Key Management

    EPYC3251D4I-2T / EPYC3101D4I-2T / EPYC3251D4I-NL / EPYC3101D4I-NL 3.5.1 Key Management In this section, expert users can modify Secure Boot Policy variables without full authenti- cation. Factory Key Provision Install factory default Secure Boot keys after the platform reset and while the System is in Setup mode.
  • Page 58 Remove 'UEFI CA' from DB Device Guard ready system must not list ‘Microsoft UEFI CA’ Certificate in Autho- rized Signature database (db). Restore DB defaults Restore DB variable to factory defaults. Platform Key(PK) Enroll Factory Defaults or load certificates from a file: 1.
  • Page 59 EPYC3251D4I-2T / EPYC3101D4I-2T / EPYC3251D4I-NL / EPYC3101D4I-NL 1. Public Key Certificate in: a) EFI_SIGNATURE_LIST b) EFI_CERT_X509 (DER encoded) c) EFI_CERT_RSA2048 (bin) d) EFI_CERT_SHA256, 384, 512 2. Authenticated UEFI Variable 3. EFI PE/COFF Image(SHA256) Key Source: Factory, External, Mixed Forbidden Signatures Enroll Factory Defaults or load certificates from a file: 1.
  • Page 60 Key Source: Factory, External, Mixedt OsRecovery Signatures Enroll Factory Defaults or load certificates from a file: 1. Public Key Certificate in: a) EFI_SIGNATURE_LIST b) EFI_CERT_X509 (DER encoded) c) EFI_CERT_RSA2048 (bin) d) EFI_CERT_SHA256, 384, 512 2. Authenticated UEFI Variable 3. EFI PE/COFF Image(SHA256) Key Source: Default, External, Mixed, Test...

  • Page 61: Boot Screen

    EPYC3251D4I-2T / EPYC3101D4I-2T / EPYC3251D4I-NL / EPYC3101D4I-NL 3.6 Boot Screen In this section, it will display the available devices on your system for you to configure the boot settings and the boot priority. Boot Option #1 Use this item to set the system boot order.
  • Page 62 AddOn ROM Display Use this option to adjust AddOn ROM Display. If you enable the option “Full Screen Logo” but you want to see the AddOn ROM information when the system boots, please select [Enabled]. Configuration options: [Enabled] and [Disabled]. The default value is [Enabled].

  • Page 63: Csm Parameters

    EPYC3251D4I-2T / EPYC3101D4I-2T / EPYC3251D4I-NL / EPYC3101D4I-NL 3.6.1 CSM Parameters Enable to launch the Compatibility Support Module. Please do not disable unless you’re running a WHCK test. If you are using Windows Server 2012 R2 or later ver- sions 64-bit UEFI and all of your devices support UEFI, you may also disable CSM for faster boot speed.
  • Page 64 OCU1 Slot OpROM To select Slot Storage and Network Option ROM policy. In Auto option, the default is Dis- abled with NVMe device, but it is Legacy with other devices. (This item can’t select Video Option ROM policy.) M2_1 Slot OpROM To select Slot Storage and Network Option ROM policy.

  • Page 65: Event Logs

    EPYC3251D4I-2T / EPYC3101D4I-2T / EPYC3251D4I-NL / EPYC3101D4I-NL 3.7 Event Logs Change Smbios Event Log Settings This allows you to configure the Smbios Event Log Settings. When entering the item, you will see the followings: Smbios Event Log Use this item to enable or disable all features of the SMBIOS Event Logging during system boot.
  • Page 66 entries which utilize a multiple-event counter. The value ranges from 0 to 99 minutes. View Smbios Event Log Press <Enter> to view the Smbios Event Log records. All values changed here do not take effect until computer is restarted.

  • Page 67: Exit Screen

    EPYC3251D4I-2T / EPYC3101D4I-2T / EPYC3251D4I-NL / EPYC3101D4I-NL 3.8 Exit Screen Save Changes and Exit When you select this option, the following message “Save configuration changes and exit setup?” will pop-out. Press <F10> key or select [Yes] to save the changes and exit the UEFI SETUP UTILITY.

  • Page 68: Chapter 4 Software Support

    4.2.4 Contact Information If you need to contact ASRock Rack or want to know more about ASRock Rack, welcome to visit ASRock Rack’s website at http://www.ASRockRack.com; or you may contact your...

  • Page 69: Chapter 5 Troubleshooting

    EPYC3251D4I-2T / EPYC3101D4I-2T / EPYC3251D4I-NL / EPYC3101D4I-NL Chapter 5 Troubleshooting 5.1 Troubleshooting Procedures Follow the procedures below to troubleshoot your system. Always unplug the power cord before adding, removing or changing any hardware com- ponents. Failure to do so may cause physical injuries to you and damages to motherboard components.
  • Page 70 1. Verify if the battery on the motherboard provides ~3VDC. Install a new battery if it does not. 2. Confirm whether your power supply provides adaquate and stable power. Other problems... 1. Try searching keywords related to your problem on ASRock Rack’s FAQ page: http://www.asrockrack.com/support...

  • Page 71: Technical Support Procedures

    EPYC3251D4I-2T / EPYC3101D4I-2T / EPYC3251D4I-NL / EPYC3101D4I-NL 5.2 Technical Support Procedures If you have tried the troubleshooting procedures mentioned above and the problems are still unsolved, please contact ASRock Rack’s technical support with the following information: 1. Your contact information 2.

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