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Chenbro RB251 User Manual

Rackmount server
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RB251
RB251
User Manual
Rackmount Server
February 17, 2021 Version 0.8
This document provides an overview of product features, functions, architecture, and support specifications.

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Summary of Contents for Chenbro RB251

  • Page 1 RB251 RB251 User Manual Rackmount Server February 17, 2021 Version 0.8 This document provides an overview of product features, functions, architecture, and support specifications.
  • Page 2 DISCLAIMERS No license (express or implied, by estoppel or otherwise) to any intellectual property rights is granted by this document. The manufacturer disclaims all express and implied warranties, including without limitation, the implied warranties of merchantability, fitness for a particular purpose, and non-infringement, as well as any warranty arising from course of performance, course of dealing, or usage in trade.

  • Page 3: Table Of Contents

    Table of Contents Table of Contents ............................... 3 List of Figures ..............................4 List of Tables ............................... 5 1 Product Overview ............................6 System Features Overview ......................8 Front Panel ........................... 9 Back Panel ..........................10 Front Control Panel ........................11 Chassis Dimensions ........................

  • Page 4: List Of Figures

    List of Figures Figure 1 RB251 overview ..........................8 Figure 2 RB251 major components overview ....................8 Figure 3 251 front panel ............................ 9 Figure 4 RB251 back panel ..........................10 Figure 5 Front control panel ......................... 11 Figure 6 Chassis dimensions ......................... 12 Figure 7 Label embossing dimensions ......................

  • Page 5: List Of Tables

    List of Tables Table 1 RB251 specifications ........................... 6 Table 2 Front control panel ........................... 11 Table 3 Slide rail options ..........................15 Table 4 System environmental specifications summary ................16 Table 5 System packaging information ......................17 Table 6 Product weight information ......................17 Table 7 Drive power LED/activity LED behavior ..................

  • Page 6: Product Overview

    Xeon Scalable processor-- up to 2x Ice lake processor and 32x DDR4 DIMM slot based on Intel Whitley server board M50CYP2SB. RB251 provides the performance and scalability to meet the needs of a variety of workloads for virtualization, high performance computing, cloud, etc applications. This chapter provides a high-level overview of the system features and available options.
  • Page 7 Feature Description Double-width GPGPU supporting) Riser 3: 2x PCIe x8 slot  System Management IPMI 2.0  Redfish compliant  Dedicate onboard RJ45 1GbE management port  Support for Intel DCM  Support for Intel SDP tool  Support for Intel server management software ...

  • Page 8: System Features Overview

    1-1 System Features Overview Figure 1 RB251 over view Figure 2 RB251 major components over view Label Embossing Rear Top Cover Power Supply Unit Front Top Cover Latch Fan Assembly Full-Height Expansion Bracket Front Top Cover Server Board Low-Profile Expansion Bracket │...

  • Page 9: Front Panel

    1-2 Front Panel Figure 3 251 front panel Rack Handles Storage Drive Bay Front Control Panel Info Tag │ 9 Product Overview...

  • Page 10: Back Panel

    1-3 Back Panel Figure 4 RB251 back panel 1U Single Power Supply OCP Expansion Slot Low-Profile Expansion Slots UID Button Full-Height Expansion Slots │ 10 Product Overview...

  • Page 11: Front Control Panel

    1-4 Front Control Panel Figure 5 Front control panel Table 2 Front control panel Label Icon Indicator, button or connector USB 3.0 Video Port (VGA) Power Button Reset Button UID Button System Alarm LED │ 11 Product Overview...

  • Page 12: Chassis Dimensions

    1-5 Chassis Dimensions 438.0 mm/17.24” 770.0 mm/30.3” 87.0 mm/3.43” Figure 6 Chassis dimensions │ 12 Product Overview...
  • Page 13 │ 13 Product Overview...

  • Page 14: Figure 7 Label Embossing Dimensions

    R 3.7 mm 400.0 mm/15.74” 129.3 mm/5.09” Figure 7 Label embossing dimensions │ 14 Product Overview...

  • Page 15: Available Rack Mounting Kit Options

    1-6 Available Rack Mounting Kit Options Advisory Note – Available rack and cabinet mounting kits are not designed to support shipment of the server system while installed in a rack. If you chose to do so, it is advised to verify your shipping configuration with appropriate shock and vibration testing before shipment.

  • Page 16: System Level Environmental Specifications

    1-7 System Level Environmental Specifications The following table defines the system level specifications under operating and non-operating environments. Table 4 System environmental specifications summary Parameter Specification Temperature Operating 5ºC to 35ºC (41ºF to 95ºF) Temperature Non-Operating -40ºC to 70ºC (-40ºF to 158ºF) Humidity Non-Operating 50% to 90%, non-condensing with a maximum wet bulb of 28°C...

  • Page 17: System Packaging

    Packaged Gross Weight Unpackaged Net Weight Packaged Gross Weight (lb) (lb) （kg） （kg） RB251 10.8 13.3 23.79 29.3 NOTE: A L5 system does not include motherboards, processors, memories, drives, or add-in cards. It is the system configuration as shipped. Weights of integrated system (system configurations that include the items above) will vary depending on the final system configuration.

  • Page 18: Installing And Removing Components

    2 Installing and Removing Components The RB251 2U rackmount server supports a variety of different storage options: 2.5” 24-port NVMe (PCIe Gen 4), tray-less  2.5” 24-port SAS/SATA, Hot-Swap, tool-less tray  3.5” 12-port SAS/SATA, Hot-Swap, tool-less tray  3.5” 8-port SAS/SATA, Hot-Swap, tool-less tray ...

  • Page 19: Top Cover Removal And Installation

    2-1 Top Cover Removal and Installation Figure 8 Front top cover removal Loosen and remove the two locking screws securing the front top cover. Press the latch as shown to release the cover. Slide the cover towards the front panel and remove it. Figure 9 Rear top cover removal Loosen and remove the two locking screws securing the rear top cover.

  • Page 20: Figure 10 Front Top Cover Installation

    Figure 10 Front top cover installation Align the three guide pins on both sides of the cover with the grooves on the chassis frame. Slide the cover toward the rear panel until it is locked into place. Replace the two locking screws on either side of the chassis to secure the cover. Figure 11 Rear top cover installation Align the three guide pins on both sides of the cover with the grooves on the chassis frame.

  • Page 21: Hdd Cage Removal And Installation

    2-2 HDD Cage Removal and Installation Figure 12 HDD cage removal Loosen and remove the two locking screws on either side of the chassis frame as shown. Pull the HDD cage toward the front panel until it unlocks. Lift the HDD cage vertically to remove it from the chassis. Figure 13 HDD cage installation Insert the HDD cage as shown and align the two guide pins on both sides with the grooves on the chassis frame.

  • Page 22: Hot-Swap Hdd Assembly Removal And Installation

    2-3 Hot-swap HDD Assembly Removal and Installation Figure 14 2.5" hot-swap HDD assembly removal Press the tray button, and release the lever as shown. Pull the HDD assembly out of the drive bay. Figure 15 2.5’’ hot-swap HDD assembly installation With the lever open, insert the HDD assembly into the drive bay until it is firmly installed in the HDD cage.
  • Page 23 Figure 16 2.5’’ HDD Installation (tool-less type) 1. Align the two guide pins of the HDD tray with the side dimples on the HDD as shown. 2. Push down the HDD until it is locked into place. NOTE: To ensure proper system air flow requirements, all front drive bays must be populated with a drive carrier. Drive carriers must be installed with either a drive or supplied drive blank.
  • Page 24 Figure 18 3.5” Hot-swap HDD assembly removal 1. Press the tray button to release the lever as shown. 2. Pull the HDD assembly out of the drive bay. Figure 19 3.5” HDD installation (tool-less type) 1. Slide in the HDD until it aligns the anchor point of the HDD tray. 2.
  • Page 25 Figure 20 3.5” HDD removal (tool-less type) 1. Bottom up the HDD assembly, and loosen the screw as shown. 2. Press out the HDD by your two thumbs. NOTE: Please operate this on a stable surface in case the HDD dropping unexpectedly. 3.
  • Page 26 Figure 22 3.5” HDD removal (screw type) 1. Loosen four screws as shown. 2. Take out the HDD from the tray. Figure 23 2.5” HDD installation in 3.5” tray (screw type) 1. Install the HDD in position on the tray. 2.
  • Page 27 2.5” drive in a 3.5” tray, a screw-type tray is required. NOTE: Dedicated screw type is required for 2.5” SSD Installation, Chenbro P/N: 384-14602-3143A0. Figure 24 2.5” HDD removal in 3.5” tray (screw type) 1. Loosen three screws as shown.

  • Page 28: System Maintenance

    2-4 System Maintenance Figure 25 Removal of whole system from the rack Lift open the latches on both sides of the front panel as shown. Loosen and remove the screws inside the latches, and firmly grab the latches on both sides of the front panel. Pull the system out of the cabinet.

  • Page 29: Fan Assembly Removal And Installation

    2-5 Fan Assembly Removal and Installation Figure 27 Fan module removal Squeeze the latches with thumb and forefinger as shown to release the fan module from the fan cage. Lift the fan module out of the fan cage vertically. Repeat steps 1 and 2 for the remaining fan modules. Figure 28 Fan cage removal Grasp the latches on both sides of the fan cage with thumb and forefinger and pull upwards to unlock the fan cage.
  • Page 30 Figure 29 Fan cage installation Align the fan cage with the slot in the chassis frame and insert it fully into the chassis until is secured with a “click” sound. Press down on the latches until they are secured with a “click” sound. Figure 30 Fan module installation Insert the fan module into the fan cage until it is secured with a “click”...

  • Page 31: Cpu Installation

    2-6 CPU Installation The server board include two socket-P4 LGA4189 processor sockets compatible with 3 Gen Intel Xeon process Scalable product family. The server board supports the processor family with a maximum TDP of 250W (may vary depends on the different system configuration. The processor heatsink module assembly with processor into socket as following instruction.

  • Page 32: Memory Module Installation

    2-7 Memory Module Installation The dual socket Ice lake processor supports up to sixteen memory channels as following memory topology. Figure 31 Memory topology It provides the recommended memory population configurations for the sever. For best system performance in dual process configuration, installed memory type and population should be the same for both processors.
  • Page 33 To install a memory module, do the following: Figure 33 Memory module installation-1 Open the retaining clips of the appropriate memory slot. Figure 34 Memory module installation-2 Ensure that notch 1 on the new memory module aligns with key 2 in the memory slot, and then insert the memory module. Press the top of the new memory module straight down until the retaining clips close and the new memory module snaps into position.

  • Page 34: Full-Height Pcie Card Installation

    2-8 Full-height PCIe Card Installation Figure 35 Full-height PCIe card and bracket installation-1 Remove the two screws securing the PCIe slot bracket to the rear panel. Figure 36 Full-height PCIe card and bracket installation-2 Loosen the two captive locking screws securing the PCIe slot bracket to the chassis base and lift it from the chassis. │...
  • Page 35 Figure 37 Full-height PCIe card and bracket installation-3 Insert the PCIe card into the slot on the riser card. Secure the PCIe slot bracket to the riser card bracket with one screw Insert the riser card bracket into the chassis frame by aligning the arrow on the bracket with the one on the rear panel (see highlight).

  • Page 36: Low-Profile Pcie Card Installation

    2-9 Low-profile PCIe Card Installation Figure 39 Low-profile PCIe card and bracket installation-1 Remove the two screws securing the PCIe slot bracket to the rear panel. Figure 40 Low-profile PCIe card and bracket installation-2 Loosen the two captive locking screws securing the PCIe slot bracket to the chassis base and lift it from the chassis. │...
  • Page 37 Figure 41 Low-profile PCIe card and bracket installation-3 Insert the PCIe card into the slot on the riser card. Secure the PCIe slot bracket to the riser card bracket with one screw Insert the riser card bracket into the chassis frame by aligning the arrow on the bracket with the one on the rear panel (see highlight).

  • Page 38: Ocp Mezzanine Card Installation

    2-10 OCP Mezzanine Card Installation Figure 43 OCP mezzanine card slot cover removal Loosen the captive screw. Remove the OCP mezzanine card slot cover. Figure 43 OCP mezzanine card installation Insert the OCP mezzanine card fully into the slot. Close the latch until it clicks into place. Tighten the captive screw to secure the card.

  • Page 39: Psu Installation And Removal

    2-11 PSU Installation and Removal Figure 44 PSU removal Press the locking tab with your thumb to release the PSU. While keeping the tab depressed, pull the handle to remove the PSU from the chassis. Figure 45 PSU installation Insert the PSU into the chassis until the locking tab is secured with a “click” sound. │...

  • Page 40: Slide Rail Installation

    2-12 Slide Rail Installation Figure 46 Slide rail installation-1 Attach the inner rail to the chassis frame while aligning the T pins on the side of the system with the slots on the inner rail. Repeat for the other side of the chassis. Figure 47 Slide rail installation-2 Engage the T pin with the slot on the inner rail as shown.
  • Page 41 Figure 48 Slide rail Installation-3 Install the system into the rack. │ 41 Installing and Removing Components...

  • Page 42: Backplane

    3 Backplane 3-1 Storage Backplane Options Each drive tray includes two LED indicators for drive activity and drive status. Light pipes integrated into the drive tray direct light emitted from LEDs mounted next to each drive connector on the backplane to the drive tray faceplate, making them visible from the front of the system.

  • Page 43: Storage Backplane Options

    3-1 Storage Backplane Options RB251 series supports below backplanes: 12 x 3.5” Mini-SAS HD active backplane  8 x 3.5” Mini-SAS HD passive backplane  24 x 2.5” SAS/SATA backplane  24 x 2.5’’ NVMe backplane  All available SAS/SATA backplanes include the following common features: 12Gbps SAS and 6Gbps SAS/SATA ...

  • Page 44: 12-Port 12Gbps Mini-Sas Hd Active Backplane

    3-2 3.5” 12-Port 12Gbps Mini-SAS HD Active Backplane Table 8 Backplane specifications Specification Host Interface Mini-SAS HD HDD Interface SFF-8680 (SAS 29-pin) Hot-Swap Yes, allows users to replace devices online Display LED indicates storage device status Power LED – Off (Fault) –...

  • Page 45: Table 9 Connector And Pin Header Function Description

    Figure 51 Backplane rear view Table 9 Connector and pin header function description Label Connector Description Drawing Power The backplane includes two 2 x 4 connectors supplying power to the backplane. Power is routed to the backplane via a power cable harness from the power supply.
  • Page 46 PIN-Number PIN-Definition SYS FAN DISABLE TEMP ALRAM SYS FAN DISABLE BUZZER DISABLE SES MON DISABLE I2C ADDR │...

  • Page 47: 12Gbps 8-Port Mini Sas Hd Passive Backplane

    3-3 12Gbps 8-Port Mini SAS HD Passive Backplane Table 11 Backplane specifications Specification Host Interface Mini SAS HD HDD Interface SAS 29-pin Hot-Swap Yes, allows users to replace storage devices online Display LED indicates storage device status Power LED – Off (Fault) –...

  • Page 48: Table 12 Connector And Pin Header Function Description

    Figure 69 Backplane rear view Table 12 Connector and pin header function description Label Connector Description Drawing Power The backplane includes a 2 x 4 connector supplying power to the backplane. Power is routed to the backplane via a power cable harness from the power supply.

  • Page 49: Table 13 Fan Setting For Rm24508

    Table 13 Fan setting for RM24508 NC3 (Mute pin) JA1 (JCK pin) PIN 5,6 OPEN PIN 4,6 SHORT PIN 5,6 OPEN PIN 2,4 SHORT PIN 5,6 SHORT N/A (No matter what status) Error! Use the Home tab to apply 標題,標題 1 to the text that you want to appear here. │...

  • Page 50: 8-Port 12Gb/S Sas Passive Backplane

    3-4 2.5” 8-Port 12Gb/s SAS Passive Backplane Table 14 Backplane specifications Specification Host Interface Mini-SAS HD Device Interface SFF-8680 Hot-Swap Yes, allows users to replace storage devices on line Display LED indicates storage device status Power LED – Off (Fault) –...

  • Page 51: Table 15 Connector And Pin Header Function Description

    Figure 71 Backplane rear view Table 15 Connector and pin header function description Picture Label Connector Description Power The backplane includes one power connector supplying 12V input to the backplane. Power is routed to the backplane via a power cable harness from the power supply.

  • Page 52: 16-Port 12Gb/S Sas Passive Backplane Docked With Expander Board

    3-7 2.5” 16-Port 12Gb/s SAS Passive Backplane Docked with Expander Board Table 17 Backplane specifications Specification Host Interface Docking to expander board Device Interface SFF-8680 Hot-Swap Yes, allows users to replace storage devices on line Display LED indicates storage device status Power LED –...

  • Page 53: Table 27 Connector And Pin Header Function Description

    Figure 73 Backplane rear view Table 18 Connector and pin header function description Picture Label Connector Description Power The backplane includes two power connectors supplying 12V input to the backplane. Power is routed to the backplane via a power cable harness from the power supply.

  • Page 54: Table 28 Expander Board Specifications

    Table 19 Expander board specifications Specification Host Interface SFF-8680 Device Interface Mini-SAS HD (to 8-port BP)/Board docking (to 16-port BP) Hot-Swap Yes, allows users to replace storage devices on line Environment Monitor Temperature sensor TMP75 (U3) Connectors 1. 5 x Mini-SAS HD 2.

  • Page 55: Table 29 Connector And Pin Header Function Description

    Figure 75 Expander board front view Table 20 Connector and pin header function description Picture Label Connector Description Power The backplane includes one power connector supplying 12V input to the backplane. Power is routed to the backplane via a power cable harness from the power supply.

  • Page 56: Base Board

    4 Base Board 4-1 Base board feature overview This charter identifies the boards feature and function, provide general introduction and board block diagram information. Figure 76 Base board feature overview 4-2 Base board feature overview The architecture of Intel server board M50CYP2SB product base on Intel 3 generation Xeon processor scalable product support, Intel C621A chipset, and ASPEED AST2500 baseboard management controller.

  • Page 57: Base Board Jumper Identification

    Figure 77 Base board block diagram 4-3 Base board jumper identification The base board includes several jumper headers that can be used to configure, protect, or recover specific feature of the server board as below identification. Base Board │...

  • Page 58: Base Board Led Identification

    Figure 78 Base board jumper identification 4-4 Base board LED identification The base board includes LEDs that can be used to identify system status or component fault. The following identify LEDs on base board information. Figure 79 Base board LEDs identification-1 Base Board │...
  • Page 59 Figure 80 Base board LEDs identification-2 Figure 81 Base board LEDs identification-3 Base Board │...

  • Page 60: Maintenance And Service

    You may need to return the defective item by request. The customer should ensure that the products are Defect On Arrival for up to three months from Chenbro’s shipping date and the damage is not caused by shipping or failures resulting from accident, misuse, abuse, neglect, mishandling, misapplication, modification, improper operation, improper repair or rework.

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