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ASROCK Rack 3U8G+/C621 User Manual

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3U8G+/C621
User Manual
Version 1.0
Published May 2018
Copyright©2018 ASRock Rack INC. All rights reserved.

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Summary of Contents for ASROCK Rack 3U8G+/C621

  • Page 1 3U8G+/C621 User Manual Version 1.0 Published May 2018 Copyright©2018 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 Setting up the Server in a Restricted Access Location • Access can only be gained by service persons or by users who have been instructed about the reasons for the restrictions applied to the location and about any precautions that shall be taken. • Access is through the use of a tool or lock and key, or other means of security, and is controlled by the authority responsible for the location.

  • Page 4: Table Of Contents

    Contents Chapter 1 Introduction Shipping Box Contents Specifications Chapter 2 Server System Overview System Components Internal Features System Front Panel System Rear Panel Front Control Panel Buttons and LEDs PSU LED Drive Tray LEDs Fan Failed LED Chapter 3 Hardware Installation and Maintenance Server Top Cover Hard Drive Power Supply...
  • Page 5 Appendix A SLIMLINE Connections Appendix B System Block Diagram Appendix C Serverboard Block Diagram Appendix D Motherboard Layout Appendix E Installing the CPU (Socket: LGA2011 R3) Installing the CPU (Socket: LGA2011) Installing the CPU Fan and Heatsink Installation of Memory Modules (DIMM) Appendix F Installing the Server in a Rack...

  • Page 6: Chapter 1 Introduction

    In case any modifications of this documentation occur, the updated version will be available on ASRock Rack’s website without further notice. If you require technical support related to this product, please visit our website for specific information about the model you are using.

  • Page 7: Shipping Box Contents

    1.1 Shipping Box Contents Item Quantity 3U8G+/C621 Barebone (3U form factor) System Boards (MB)* Power Supply Units* System Fans* HDD Backplane (BPB)* Front Panel Board* Power Distribution Boards (PDB)* Switch Board (SWB)* Power Cable, ATX 24Pin, PDB to MB, 520mm*...

  • Page 8: Specifications

    3U8G+/C621 1.2 Specifications 3U8G+/C621 System Physical Status Form Factor 3U Rackmount Dimension 27.6" x 16.9" x 5.1" (711 x 430 x 130.35 mm) (D x W x H) Support MB Size CEB (EP2C621D16GM / EP2C621D16GM-2T) Front Panel Buttons • Power On/Standby button •...

  • Page 9: Chapter 2 Server System Overview

    Chapter 2 Server System Overview This chapter provides diagrams showing the location of important components of the server system. 2.1 System Components 6 x 2.5” Hot-Swap HDD Trays 8 x Hot-Swap System Fans Server Board Power Supply Units VGA Port 16 x PCIE Card Slots Front Controls and Indicators...

  • Page 10: Internal Features

    3U8G+/C621 2.2 Internal Features...

  • Page 11: System Front Panel

    No. Item No. Item Power Supply Unit (PSU) 4 PCIE Card Slot 2 Power Supply Unit (PSU) 3 PCIE Card Slot 3 Power Supply Unit (PSU) 2 PCIE Card Slot 4 Power Supply Unit (PSU) 1 PCIE Card Slot 5 Serverboard PCIE Card Slot 6 6 x 2.5"...

  • Page 12: System Rear Panel

    3U8G+/C621 2.4 System Rear Panel WARNING! Do NOT open the tray if the server is not powered down or while it is still running. SLOT1 SLOT2 HDD5 SLIMLINE x8 SLIMLINE x16 NVMe HDD4 NVMe HDD3 HDD2 HDD1 HDD0 Redundant PSU 3+1: Only one PSU is allowed to be removed while the server is running.

  • Page 13: Front Control Panel Buttons And Leds

    2.5 Front Control Panel Buttons and LEDs Front Control Panel Description Power Button and LED UID Button and LED* LAN1, LAN2, LAN3, LAN4 Activity LEDs* HDD Activity LED System Event LED* NMI (Nonmaskable Interrupt) Button* System Reset Button *Please be noted that the functions are supported depending on the type of the server board. Power Button Press the power switch button to toggle the system power on and standby/sleep modes.
  • Page 14 3U8G+/C621 NMI (Nonmaskable Interrupt) Button Press the NMI button with a paper clip or pin to generate a nonmaskable interrupt and to put the server in a halt state for examination. System Reset Button When the system is completely unresponsive, press the system reset button to reboot the server without shutting it off and initialize the system.

  • Page 15: Psu Led

    2.6 PSU LED PSU LED PSU Status LED Status Description Green Normal work; output ON and OK Amber Module fault/protection in operating mode (failure, OCP, OVP, Fan Fail, OTP, UVP) AC cord unplugged Amber blinking at 0.5Hz Warning (high temp, high power, high current, slow fan) Green blinking at 0.5Hz AC Present Only 12VSB on (PS off) or PS in Smart Redundant state...

  • Page 16: Fan Failed Led

    3U8G+/C621 HDD Activity LED Status Description Solid Green HDD active Blinking Green HDD accessing or reading HDD failed HDD powered-off 2.8 Fan Failed LED Fan Failed LED Fan LED Status Description Solid Red Fan failed Normal...

  • Page 17: Chapter 3 Hardware Installation And Maintenance

    Chapter 3 Hardware Installation and Maintenance This chapter helps you assemble the chassis and install components. Before You Begin Before you work with the server, pay close attention to the “Important Safety Instructions” at the beginning of this manual. 1. Make sure the server is powered off. Power down the server if it is still running.

  • Page 18: Server Top Cover

    3U8G+/C621 3.1 Server Top Cover Removing the Server Top Covers 1. Before removing the top covers, power off the server and unplug the power cord. 2. The system must be operated with all the chassis top covers installed to ensure proper cooling.
  • Page 19 (B) Top Middle Cover 1. Remove the screws that secure the top middle cover to the chassis. 2. Lift up and remove the top middle cover. (C) Top Rear Cover 1. Remove the screws that secure the top rear cover to the chassis. 2.
  • Page 20 3U8G+/C621 Installing the Server Top Covers 1. Lower the top rear cover on the chassis, making sure the side latches align with the cutouts. 2. Slide the top rear cover toward the REAR of the chassis. 3. Secure the top rear cover with the screws.
  • Page 21 5. When both top middle and rear covers are properly secured, lower the top front cover on the chassis. Carefully align the mounting holes in the top middle cover and the chassis. *Use a 4U top (front) cover instead if the power connectors of your GPGPU card are on the top side of it. Please purchase seperately if needed.

  • Page 22: Hard Drive

    3.2 Hard Drive 3.2.1 Installing a Hard Disk Drive into 2.5" Hard Drive Tray The 3U8G+/C621 chassis supports hot-swappable 2.5" hard drives. Six 2.5" hard drive trays are located on the rear of the chassis. Removing 2.5” Hard Drive Trays from the Chassis 1.
  • Page 23 Installing a 2.5” Hard Drive to the Hard Drive Tray 1. Place a 2.5" HDD into the tray with the printed circuit board side facing down. Carefully align the mounting holes in the hard drive and the tray. 2. Secure the hard drive using the two screws. 3.

  • Page 24: Power Supply

    Installing the Power Supply Unit The 3U8G+/C621 can accommodate four AC or two DC power supplies in the bay at the rear of the chassis. Each unit provides up to 1200 Watts of power. Three power supplies are required for full load operation, with the fourth power supply purely as a redundant, load- sharing backup.
  • Page 25 Removing the Power Supply Unit To remove a failed power supply, identify the failed power supply by checking the power supply LEDs on the PSU. 1. Hold onto the power supply handle while pressing the locking lever towards the power supply handle.

  • Page 26: System Fan

    3U8G+/C621 3.4 System Fan The 3U8G+/C621 chassis supports hot-swappable system fans. Replacing the System Fan 1. Remove the top middle cover from the chassis. (See p. 14 for more details.) 2. Lift to remove the failed fan. 3. Align the mounting holes on the replacement fan corners with the fan mounts on the fan bracket.
  • Page 27 Reversing the Fan Modules (only required for active GPGPU users) If you are using "active" GPGPU cards that are equipped with one or more fans on the cards, the system requires back-to-front air flow routing, so you need to reverse the fan modules before installing the system fans.
  • Page 28 3U8G+/C621 To reverse fan modules, please follow the steps below. 1. Gently lift and remove the fans (A) from the front row and the fans (B) from the rear row.
  • Page 29 2. Turn all the four fan modules (A) 180 degrees around. Place them to the rear row. 3. Turn all the four fan modules (B) 180 degrees around. Place them to the front row. 180゜ 180゜ REAR FRONT...
  • Page 30 3U8G+/C621 4. Make sure all fans are well seated and all arrows on the fans are pointed to the FRONT of the chassis. FRONT FRONT Back-to-front air flow For active GPU/MIC cards 5. Remove the front top cover and remove the GPGPU card from the Slot 8.
  • Page 31 FAN Flow Switch Jumper (3-pin FAN_FLOW_SW1) For Passive Card For Active Card Front-to-back air flow Back-to-front air flow (Default) 7. Place the GPGPU Card back into the Slot 8. Put the top front cover back. Then power on the system.

  • Page 32: Pci Express Card

    3U8G+/C621 3.5 PCI Express Card Installing and Removing a PCIE Card 1. Release the screw that secures the slot cover to the chassis. *For installing a double-width PCI Express card, please remove two slot covers. 2. Remove the slot cover.
  • Page 33 3. Install a PCIE card into the slot. 4. Make sure that the card is well seated and tighten the screw on the face plate.

  • Page 34: Motherboard Tray

    3U8G+/C621 3.6 Motherboard Tray Attention! DO NOT open the motherboard tray if the server is not powered down or while it is still running. Removing the Motherboard Tray 1. Release the two thumb screws on the motherboard tray. 2. Press the locking tab in the middle to release the handles.
  • Page 35 4. Then you can grasp the handles and slide the tray all the way out of the chassis.
  • Page 36 3U8G+/C621 Installing the Motherboard Tray 1. Gently and slowly slide the motherboard tray into the chassis until the black line on the tray almost reaches the edge of the chassis. 2. Make sure the black line on the top edge of the tray is evenly aligned with the edge of the chassis.

  • Page 37: Add-On Card & Mezzanine Card

    3.7 Add-on Card & Mezzanine Card 1. You can install an add-on card to the chassis only when you have a riser card installed on the server board. 2. Use a 1U low profile passive heatsink for the processor nearest to the add-on card on your server board.
  • Page 38 3U8G+/C621 3. Remove the screw securing the slot cover to the assmebly. 4. Slide the slot cover out sideways. 5. Install the add-on card into to the riser-card assembly. 6. Tighten the screw to secure the add-on card.
  • Page 39 7. Install the add-on card assembly to the chassis. Align the plate of the add-on card with the openings in the back of the chassis. 8. User screws to secure the add-on card assembly to the chassis.

  • Page 40: Installing A Mezzanine Adapter Card (4U10G_Sl2M)

    3U8G+/C621 3.7.2 Installing a Mezzanine Adapter Card (4U10G_SL2M) 1. Loosen the screws to release the riser-card assembly. 2. Remove the riser-card assembly from the chassis. Riser Card Assembly (Riser Card 4U10G_SL2P pre-installed) 3. Remove the screw securing the slot cover to the assmebly.
  • Page 41 Install the four spacer supports into the mezzanine adapter card (4U10G_SL2M) around the mezzanine card slot. Note: Please contact the ASRockRack Technical Support Team for more information about the mezzanine adapter card and the supported mezzzaine cards. 6. Gently insert the mezzanine card into the mezzanine card slot on the adapter card. Mezzanine Card (M599R / M41202R) Spacer Supports...
  • Page 42 3U8G+/C621 7. ttach the matching I/O plate of the mezzanine card to the adapter card. 8. User screws to secure the plate to the adapter card. Matching I/O Plate 9. Install the mezzanine adapter card into to the riser-card assembly.
  • Page 43 11. Install the adapter card assembly to the chassis. Align the plate of the adpater card with the openings in the back of the chassis. 12. User screws to secure the adapter card assembly to the chassis. 13. If you are using a mezzanine adapter card, please connect your Slimeline cables to the connectors on the mezzanine adapter card, but not to those on the riser card.

  • Page 44: Air Duct

    3U8G+/C621 3.8 Air Duct 1. Position the air duct (Right) in the chassis and carefully lower the air duct in place. Air Duct...
  • Page 45 Remove the left riser-card assembly first, before installing the air duct (Left). Please see section "3.7 Add-on Card & Mezzanine Card" for the instructions on how to remove a riser-card assembly. Riser-Card Assembly (Riser Card 4U10G_SL2P pre-installed) Carefully lower the other air duct (Left) in place. Then install the left riser-card assembly back into the chassis.

  • Page 46: Slimline Connections

    3U8G+/C621 Appendix A SLIMLINE Connections For PCIE Cards X8 SLIMLINE X16 SLIMLINE (SLOT1) (SLOT2) On the Motherboard SLIMELINE3 SLIMELINE2 SLIMELINE1 EP2C621D16GM EP2C621D16GM-2T SLIMELIN2 SLIMELIN1 SLIMELIN1 4U10G_SL2P 4U10G_SL2P (Riser Card) (Riser Card) SLIMLIN SLIMLIN Slot1 SLIMLIN Slot2 SLIMLINE SLIMLINE SLIMLINE SLIMLINE...
  • Page 47 For Mezzanine Cards X8 SLIMLINE X16 SLIMLINE (SLOT1) (SLOT2) On the Motherboard SLIMELINE3 SLIMELINE2 SLIMELINE1 EP2C621D16GM EP2C621D16GM-2T SLIMELIN2 SLIMELIN1 SLIMELIN1 4U10G_SL2M) 4U10G_SL2M (Mezzanine Adapter Card) (Mezzanine Adapter Card) SLIMLIN SLIMLIN SLIMLIN Slot1 Slot2 SLIMLINE SLIMLINE SLIMLINE SLIMLINE...
  • Page 48 3U8G+/C621 For NVMe HDDs for NVMe Support (HDD4 & HDD5) On the Motherboard SLIMELINE4 EP2C621D16GM EP2C621D16GM-2T SLIMELIN1 4U10G_U2BP (HDD Backplane)

  • Page 49: System Block Diagram

    Appendix B System Block Diagram IPMI I350 / X550 conn USB3 ASPEED 2500 24pin SATA Skylake Skylake CPU1 CPU2 EP2C621D16GM EP2C621D16GM-2T Retimer Retimer Retimer Retimer PLX 8747 PLX 8747 PLX 8747 PLX 8747 switch switch switch switch switch switch switch switch...

  • Page 50: Serverboard Block Diagram

    3U8G+/C621 Appendix C Serverboard Block Diagram (UM EP2C621D16GM /EP2C621D16GM-2T)

  • Page 51: Motherboard Layout

    Appendix D Motherboard Layout 27.58 cm (10.86 in) UID1 ATXPWR1 DDR4_L1 (64 bit, 288-pin module, Blue) SLIMLINE 2 DDR4_K1 (64 bit, 288-pin module, Blue) PSU_SMB1 SLIMLINE 3 DDR4_J1 (64 bit, 288-pin module, Blue) DDR4_J2 (64 bit, 288-pin module, White) SLIMLINE 4 AEP_4 CPU2_FAN1 SATA_4_7...
  • Page 52 3U8G+/C621 Description ATX Power Connector (ATXPWR1) PSU SMBus (PSU_SMB1) Mini-SAS HD Connector (SATA_4_7) ATX 12V Power Connector (ATX12V2) 1 x 288-pin DDR4 DIMM Slots (DDR4_J2, White) 3 x 288-pin DDR4 DIMM Slots (DDR4_J1, DDR4_K1, DDR4_L1, Blue) Slimline NVMe Connector (SLIMLINE2)
  • Page 53 Description Auxiliary Panel Header (AUX_PANEL1) Intelligent Platform Management Bus header (IPMB1) System Panel Header (PANEL1) TPM Header (TPM1) Serial Port Header (COM1) Non Maskable Interrupt Button (NMI_BTN1) Chassis ID0 Jumper (CHASSIS_ID0) USB 2.0 Header (USB2_1_2) Slimline NVMe Power Connector (SLIM_PWR1) Front LAN LED Header (FRONT_LED_LAN34) PWM Configuration Header (PWM_CFG1) Chassis ID1 Jumper (CHASSIS_ID1)

  • Page 54: Installing The Cpu (Socket: Lga2011 R3)

    3U8G+/C621 Appendix E Installing the CPU (Socket: LGA2011 R3)
  • Page 56 3U8G+/C621 The cover must be placed if returning the motherboard for after service.

  • Page 57: Installing The Cpu (Socket: Lga2011)

    Installing the CPU (Socket: LGA2011)
  • Page 58 3U8G+/C621...
  • Page 59 The cover must be placed if returning the motherboard for after service.

  • Page 60: Installing The Cpu Fan And Heatsink

    3U8G+/C621 Installing the CPU Fan and Heatsink Before you installed the heatsink, you need to spray thermal interface material between the CPU and the heatsink to improve heat dissipation. Passive heatsink for narrow ILM socket...

  • Page 61: Installation Of Memory Modules (Dimm)

    Installation of Memory Modules (DIMM) The DIMM only fits in one correct orientation. It will cause permanent damage to the motherboard and the DIMM if you force the DIMM into the slot at incorrect orientation. For more information about DIMM installation, please refer to the User Manual that comes with the serverboard you use.

  • Page 62: Installing The Server In A Rack

    3U8G+/C621 Appendix F Installing the Server in a Rack This section describes how to rackmount the server with slide rail assemblies. 1. The rails installation instructions in this manual are example only, your actual rail assembly procedure may differ slightly .
  • Page 63 To slide a chassis rail back into the slide rail assembly, push the blue release button toward the rear, and simultaneously slide the chassis rail into the slide rail assembly until it is locked and cannot be pushed further. Attaching the Chassis Rails to the Server Position a chassis rail along one side of the chassis, and align the keyhole openings on the chassis rail with the locating pins on the side of the chassis.
  • Page 64 3U8G+/C621 Attaching the Slide Rail Assemblies to the Rack Determine where to attach the slide rails. Make sure you have enough free space above the slide rail bracket for the chassis. For a 3U server, 6 holes of free space above the slide rail bracket are required. If you use a 4U top cover for the server, you need to have 9 holes of free space above the slide rail bracket.
  • Page 65 Extend the pre-attached front and rear adjustable brackets on the slide. Do not fully tighten the nuts yet. Rear Bracket Front Bracket Adjust the brackets to accommodate the depth of the rack. 1 1 U 1 1 U...
  • Page 66 3U8G+/C621 Align the holes on the brackets with the mounting holes you selected on the rack. Tighten the screws to secure the slide rails to the rack. Make sure the rear bracket meets the rear vertical rail of the rack.
  • Page 67 Sliding the Server into the Rack Ensure that the slide rails are properly and securely attached to the rack. Fully extend the slide rails from the rack by pulling the inner rails out until they are locked and cannot be pulled out further. 1 1 U To slide an inner rail back into the slide rail, press the metal tab on the inner rail, and simultaneously slide the inner rail into the slide rail .
  • Page 68 3U8G+/C621 Slide the server slowly and evenly all the way into the cabinet to ensure that the slide assemblies are working correctly. The server is heavy. For safe lifting, two or more persons are required to install the server into the rack.
  • Page 69 Tighten the two thumb screws on the front of the server to secure the server to the rack. To remove the server from the rack, reverse these instructions. When connecting cables to the server, make sure there is enough cable slack so you can slide the server in and out of the rack without accidentally unplugging a cable.

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