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xFusion Digital Technologies FusionServer XH321L V5 Technology White Paper

Liquid-cooled server node
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FusionServer XH321L V5 Liquid-Cooled Server Node
Technical White Paper
Issue
06
Date
2023-02-28
xFusion Digital Technologies Co., Ltd.

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Summary of Contents for xFusion Digital Technologies FusionServer XH321L V5

  • Page 1 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper Issue Date 2023-02-28 xFusion Digital Technologies Co., Ltd.
  • Page 2 Notice In this document, "xFusion" is used to refer to "xFusion Digital Technologies Co., Ltd." for concise description and easy understanding, which does not mean that "xFusion" may have any other meaning. Any "xFusion" mentioned or described hereof may not be understood as any meaning other than "xFusion Digital Technologies Co., Ltd.", and xFusion Digital Technology Co., Ltd.
  • Page 3 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper Contents Contents About This Document ......................v 1 Product Introduction ...................... 7 2 Features ......................... 10 3 Physical Structure ......................13 4 Logical Structure ......................16 5 Hardware Description ....................17 5.1 Front Panel ............................17...
  • Page 4 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper Contents 5.7 Boards ..............................35 5.7.1 Mainboard ............................35 6 Product Specifications ....................37 6.1 Technical Specifications ........................37 6.2 Environmental Specifications .........................40 6.3 Physical Specifications ..........................41 7 Software and Hardware Compatibility ................. 43 8 Safety Instructions......................
  • Page 5 Technical White Paper About This Document About This Document Purpose This document describes the FusionServer XH321L V5 liquid-cooled server node in terms of features, structure, specifications, and component hardware and software compatibility. Intended Audience This document is intended for pre-sales engineers.
  • Page 6 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper About This Document Change History Issue Date Description 2023-02-28 Updated 5.7.1 Mainboard . ⚫ Added A.5 Sensor List. ⚫ 2022-11-11 Updated 8.1 Security. 2022-08-12 Optimized 6.3 Physical Specifications . ⚫ Added A.1 Node Label.
  • Page 7 Technical White Paper 1 Product Introduction Product Introduction The FusionServer XH321L V5 (XH321L V5) is a liquid-cooled server node designed for X6000 servers. An X6000 can house up to four XH321L V5 server nodes in a 2U chassis. The XH321L V5 delivers supreme performance and high storage density in limited space through innovative design.
  • Page 8 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper 1 Product Introduction Figure 1-1 XH321L V5 (liquid cooling of processors only) Figure 1-2 XH321L V5 (liquid cooling of processors and memory modules) 2023-02-28...
  • Page 9 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper 1 Product Introduction Table 1-1 Configuration description Configuration Application description Liquid cooling of Liquid cold plates for processors are provided. ⚫ processors ⚫ It fits into our company's full liquid cooling cabinets or customer's liquid-cooled cabinets.
  • Page 10 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper 2 Features Features Performance and Scalability ® ® ⚫ Powered by two Intel Xeon Scalable Skylake or Cascade Lake processors, the server provides up to 28 cores, 3.8 GHz frequency, a 38.5 MB L3 cache, and two 10.4 GT/s UPI links between the processors, which deliver supreme processing...
  • Page 11 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper 2 Features ⚫ It supports six SATA/SAS HDDs and NVMe SSDs. The SSDs deliver higher I/O performance than HDDs. An SSD supports approximately 100 times more I/O operations per second (IOPS) than a typical HDD.
  • Page 12 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper 2 Features Energy Efficiency ⚫ The Intel® Xeon® Scalable processors outperform the previous-generation processors while fitting into the same TDP. ⚫ Efficient voltage regulator-down (VRD) power supplies for boards minimize the energy loss from DC/DC power conversion.
  • Page 13 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper 3 Physical Structure Physical Structure The XH321L V5 nodes are available in two types of configurations: ⚫ Liquid cooling of processors only ⚫ Liquid cooling of processors and memory modules Figure 3-1 XH321L V5 (processor liquid cooling configurations) physical structure...
  • Page 14 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper 3 Physical Structure Liquid cold plate PCIe card Supercapacitor RAID controller card Mainboard Processor Memory Node case M.2 SSD card TPM (with M.2 ports) Figure 3-2 XH321L V5 (processor memory liquid cooling configurations) physical...
  • Page 15 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper 3 Physical Structure M.2 SSD card TPM (with M.2 ports) 2023-02-28...
  • Page 16 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper 4 Logical Structure Logical Structure Figure 4-1 XH321L V5 logical structure ® ® ⚫ The server supports two Intel Xeon Scalable processors. ⚫ The server supports up to 16 memory modules.
  • Page 17 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper 5 Hardware Description Hardware Description 5.1 Front Panel 5.2 Processor 5.3 Memory 5.4 Storage 5.5 Network 5.6 I/O Expansion 5.7 Boards 5.1 Front Panel 5.1.1 Appearance Figure 5-1 Front view PCIe card (RAID controller...
  • Page 18 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper 5 Hardware Description an SN label) 5.1.2 Indicators and Buttons Indicator and Button Positions Figure 5-2 Indicators and buttons on the front panel LOM port indicator Power button/indicator UID button/indicator Health status indicator...
  • Page 19 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper 5 Hardware Description Indicator and Sign Description Button yellow. Steady yellow: The device is standby. ⚫ Power button: When the device is powered on, you can ⚫ press this button to gracefully shut down the...
  • Page 20 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper 5 Hardware Description Indicator and Sign Description Button management network port 5.1.3 Ports Port Positions ⚫ Ports on the front panel Figure 5-3 Ports on the front panel Water outlet Water inlet...
  • Page 21 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper 5 Hardware Description Figure 5-4 Ports on the multi-port cable VGA port Two USB ports Serial port One USB port Universal connector port Port Description Table 5-2 Ports on the front panel...
  • Page 22 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper 5 Hardware Description Figure 5-5 Installation positions 5.2 Processor ⚫ The server supports two processors. ⚫ The same model of processors must be used in a server. ⚫ Contact your local sales representative or use the Compatibility Checker determine the components to be used.
  • Page 23 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper 5 Hardware Description Figure 5-7 Positions of processors 5.3 Memory 5.3.1 DDR4 Memory 5.3.1.1 Memory Identifier You can determine the memory module properties based on the label attached to the memory module.
  • Page 24 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper 5 Hardware Description Callout Description Definition Capacity of the memory module 8 GB ⚫ 16 GB ⚫ ⚫ 32 GB ⚫ 64 GB ⚫ 128 GB Number of ranks of the memory ⚫...
  • Page 25 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper 5 Hardware Description Memory Channel Memory Slot 1D (primary) DIMM030(D) DIMM031(H) DIMM040(E) DIMM050(F) CPU 2 2A (primary) DIMM100(A) DIMM101(G) DIMM110(B) DIMM120(C) 2D (primary) DIMM130(D) DIMM131(H) DIMM140(E) DIMM150(F) 5.3.1.3 Memory Compatibility Observe the following rules when configuring DDR4 DIMMs: ⚫...
  • Page 26 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper 5 Hardware Description ⚫ The total memory capacity is the sum of the capacity of all DDR4 DIMMs. The total memory capacity cannot exceed the maximum memory capacity supported by the CPUs.
  • Page 27 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper 5 Hardware Description 5.3.1.4 DIMM Installation Rules ⚫ Observe the following when configuring DDR4 memory modules: Install memory modules only when corresponding processors are installed. − Do not install LRDIMMs and RDIMMs in the same server.
  • Page 28 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper 5 Hardware Description Figure 5-9 Memory slots Figure 5-10 DDR4 memory installation guidelines 5.3.1.6 Memory Protection Technologies The following memory protection technologies are supported: ⚫ ⚫ Full mirroring ⚫ Address range mirroring ⚫...
  • Page 29 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper 5 Hardware Description ⚫ Device tagging ⚫ Data scrambling ⚫ Adaptive double device data correction (ADDDC) ⚫ ADDDC+1 5.4 Storage 5.4.1 Drive Configuration Table 5-5 Drive configuration Specifies the hard drive...
  • Page 30 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper 5 Hardware Description 5.4.2 Drive Numbering Figure 5-11 M.2 SSD number Figure 5-12 M.2 FRU SSD number 2023-02-28...
  • Page 31 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper 5 Hardware Description 5.4.3 Drive Indicators M.2 FRU Indicators Figure 5-13 M.2 FRU indicators Table 5-6 M.2 FRU indicator description Indicator Description M.2 FRU fault indicator ⚫ Off: The M.2 FRU is running properly.
  • Page 32 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper 5 Hardware Description Table 5-7 LOM description Chip Port Type Numb Rate Supported Rates Not Type Model er of Negotiatio Rates Supported Ports n Mode X722 10GE Auto-negoti 10000M 10/100/100 optical...
  • Page 33 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper 5 Hardware Description Indicator Positions Figure 5-15 LOM indicators Connection status Data transmission rate indicator/Data transmission indicator for a 10GE optical status indicator for a 10GE port optical port Data transmission status...
  • Page 34 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper 5 Hardware Description 5.6 I/O Expansion 5.6.1 PCIe Cards PCIe cards provide ease of expandability and connection. ⚫ The electrical ports provided by PCIe NICs cannot be connected to power over Ethernet (PoE) devices (such as a switch with PoE enabled).
  • Page 35 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper 5 Hardware Description PCIe PCIe Connec Port Slot B/D/F Slot Standa Width Size Width bridge is configured. The PCIe x16 slots are backward compatible with PCIe x8, PCIe x4, and PCIe ⚫...
  • Page 36 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper 5 Hardware Description Power connector (J14) Power connector (J16) Signal connector (J18) Signal connector (J2) Signal connector (J19) Right guide sleeve (J169) DIMM101 connector DIMM100 connector (J34) (J20005) DIMM110 connector (J36)
  • Page 37 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper 6 Product Specifications Product Specifications 6.1 Technical Specifications 6.2 Environmental Specifications 6.3 Physical Specifications 6.1 Technical Specifications Table 6-1 Technical Specifications Component Specifications Form factor 2U4 liquid-cooled server node ® Chipset...
  • Page 38 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper 6 Product Specifications Component Specifications ⚫ RDIMM and LRDIMM support The DDR4 memory modules of different types ⚫ (RDIMM and LRDIMM) and specifications (capacity, bit width, rank, and height) cannot be used together.
  • Page 39 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper 6 Product Specifications Component Specifications NOTE ⚫ The electrical ports provided by LOMs and PCIe NICs cannot be connected to PoE devices (such as a switch with PoE enabled). Connecting such an electrical port to a PoE device may cause link communication failure or even damage the NIC.
  • Page 40 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper 6 Product Specifications Component Specifications ⚫ Supports iBMC. Supports NC-SI. ⚫ Supports integration with third-party management ⚫ systems. Security feature Power-on password ⚫ Administrator password ⚫ TPM (only outside China) ⚫...
  • Page 41 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper 6 Product Specifications Category Specifications (984.25 ft). HDDs cannot be used at an altitude of over 3050 m ⚫ (10006.44 ft). Titanium PSUs are required for the altitude higher than ⚫...
  • Page 42 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper 6 Product Specifications Item Description NOTE See Figure 6-1 for methods in measuring physical dimensions of the server node. Fully equipped weight ⚫ Net weight: 6.7 kg (14.77 lb) Packaging material weight: 2.73 kg (6.02 lb) ⚫...
  • Page 43 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper 7 Software and Hardware Compatibility Software and Hardware Compatibility Use the Compatibility Checker to obtain information about the operating systems and hardware supported. ⚫ If incompatible components are used, the device may be abnormal. This fault is beyond the scope of technical support and warranty.
  • Page 44 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper 8 Safety Instructions Safety Instructions 8.1 Security 8.2 Maintenance and Warranty 8.1 Security General Statement ⚫ Comply with local laws and regulations when installing devices. These Safety Instructions are only a supplement.
  • Page 45 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper 8 Safety Instructions ⚫ Do not carry the weight that is over the maximum load per person allowed by local laws or regulations. Before moving or installing equipment, check the maximum equipment weight and arrange required personnel.
  • Page 46 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper 8 Safety Instructions Figure 8-3 Wearing an ESD wrist strap ⚫ Exercise caution when using tools. ⚫ If the installation position of the device is higher than the shoulders of the installation personnel, use a vehicle such as a lift to facilitate installation.
  • Page 47 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper 8 Safety Instructions equipment being transported is always kept upright. Take necessary precautions to prevent collisions, corrosion, package damage, damp conditions and pollution. ⚫ Transport the equipment in its original packaging.
  • Page 48 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper 9 System Management System Management The server uses the next-generation Intelligent Baseboard Management Controller (iBMC) to implement remote server management. The iBMC complies with IPMI 2.0 and provides highly reliable hardware monitoring and management.
  • Page 49 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper 9 System Management Specifications Description Setting of boot device Supports out-of-band configuration for the boot device. Alarm management Supports alarm management and reports alarms using the SNMP trap, SMTP, and syslog service to ensure 24/7 operating.
  • Page 50 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper 10 Certifications Certifications Region Country Certification Certification Mark China China RoHS Europe European Union CE-DOC ROHS REACH WEEE UKCA North America North America NRTL-ETL/MET Canada Asia Pacific Japan VCCI Global IECEE members...
  • Page 51 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper A Appendix Appendix A.1 Node Label Figure A-1 Position of the XH321L V5 label Table A-1 XH321L V5 Label description Description Serial number of the server node. For details, see A.2 Product SN.
  • Page 52 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper A Appendix Figure A-2 Example SN Table A-2 SN description Description ESN ID (two characters), which can only be 21. Material ID (eight characters), that is, the processing code. Vendor code (two characters), that is, the code of the processing place.
  • Page 53 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper A Appendix A.3.1 Operating Temperature Limitations (Supercapacitor for the RAID Controller Card Configured) Table A-3 Operating temperature specifications (with a RAID controller card supercapacitor configured) Drive Drive Quantity (Q) CPU Power (P)
  • Page 54 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper A Appendix Drive Maximum Drive Quantity (Q) CPU Power (P) Backplane Temperature 140 W ≤ P ≤ 165 W 32° C (89.6° F) P < 140 W 35° C (95° F) 0 <...
  • Page 55 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper A Appendix Drive Drive CPU Power Maximum Maximum Backplane Quantity (Q) Temperature Temperature (Onboard (PCIe Optical Optical Module) Module) 0 < Q ≤ 8 P ≤ 165 W 35° C (95° F) 35°...
  • Page 56 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper A Appendix Drive Drive CPU Power Maximum Maximum Backplane Quantity (Q) Temperature Temperature (Onboard (PCIe Optical Optical Module) Module) P ≤ 165 W 35° C (95° F) 35° C (95° F) 8 <...
  • Page 57 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper A Appendix Drive Maximum Drive Quantity (Q) CPU Power (P) Backplane Temperature backplane 8 < Q ≤ 16 140 W < P ≤ 165 W 32° C (89.6° F) P ≤ 140 W 35°...
  • Page 58 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper A Appendix Table A-6 Supported RAS features Module Feature Description Corrected Machine Check Corrects error-triggered interrupts. Interrupt (CMCI) Memory Failed DIMM Isolation Identifies faulty DIMMs to facilitate isolation and replacement of the faulty DIMMs.
  • Page 59 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper A Appendix Module Feature Description system reliability. Socket disable for FRB Isolates a faulty socket during the BIOS (Fault Resilient Boot) startup process to improve system reliability. Architected Error Records With the features such as eMCA, the...
  • Page 60 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper A Appendix Sensor Description Component RAID Card BBU BBU of the screw-in RAID RAID controller card controller card PCH Temp PCH bridge temperature Mainboard CPU1 Core Rem CPU core temperature CPU 1...
  • Page 61 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper A Appendix Sensor Description Component SYS 5V Mainboard 5 V voltage Mainboard SYS 12V_1 Mainboard 12 V voltage Mainboard SYS 12V_2 Mainboard 12 V voltage Mainboard CPU1 VCore 1.8 V CPU voltage...
  • Page 62 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper A Appendix Sensor Description Component number. FAN4 R Speed Fan speed Fan module 4 4 indicates the fan module number. Power1 PSU 1 input power PSU 1 1 indicates the PSU number.
  • Page 63 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper A Appendix Sensor Description Component 2 indicates the PSU number. PS2 Status PSU fault status 2 indicates the PSU number. PS1 Fan Status PSU fan fault status 1 indicates the PSU number.
  • Page 64 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper A Appendix Sensor Description Component drive slot number. FAN1 F Presence Fan presence Fan module 1 1 indicates the fan module number. FAN1 R Presence Fan presence Fan module 1 1 indicates the fan module number.
  • Page 65 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper A Appendix Sensor Description Component number. FAN3 R Status Fan fault status Fan module 3 3 indicates the fan module number. FAN4 F Status Fan fault status Fan module 4 4 indicates the fan module number.
  • Page 66 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper A Appendix Sensor Description Component DIMM010 DIMM status DIMM 010 indicates the DIMM slot number. DIMM020 DIMM status DIMM 020 indicates the DIMM slot number. DIMM030 DIMM status DIMM 030 indicates the DIMM slot number.
  • Page 67 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper A Appendix Sensor Description Component DIMM150 DIMM status DIMM 150 indicates the DIMM slot number. PCIE Status Incorrect PCIe status PCIe device PwrOn TimeOut Power-on timeout Mainboard PwrCap Status Power capping status...
  • Page 68 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper A Appendix Sensor Description Component SSD Disk2 Temp SSD temperature SSD 2 2 indicates the drive slot number. SSD Disk3 Temp SSD temperature SSD 3 3 indicates the drive slot number.
  • Page 69 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper B Glossary Glossary B.1 A-E ejector lever A part on the panel of a device used to facilitate installation or removal of the device. Ethernet A baseband local area network (LAN) architecture developed by Xerox Corporation by partnering with Intel and DEC.
  • Page 70 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper B Glossary B.3 K-O A hardware device that provides public keyboard, video and mouse (KVM). B.4 P-T panel An external component (including but not limited to ejector levers, indicators, and ports) on the front or rear of the server.
  • Page 71 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper B Glossary B.5 U-Z A unit defined in International Electrotechnical Commission (IEC) 60297-1 to measure the height of a cabinet or chassis. 1 U = 44.45 mm UltraPath A point-to-point processor interconnect developed by Interconnect (UPI) Intel.
  • Page 72 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper C Acronyms and Abbreviations Acronyms and Abbreviations C.1 A-E alternating current Advanced Encryption Standard New Instruction Set Address Resolution Protocol Advanced Vector Extensions backup battery unit BIOS Basic Input/Output System calendar day...
  • Page 73 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper C Acronyms and Abbreviations DDR3 Double Data Rate 3 DDR4 Double Data Rate 4 DDDC double device data correction DEMT Dynamic Energy Management Technology DIMM dual in-line memory module DRAM dynamic random-access memory...
  • Page 74 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper C Acronyms and Abbreviations high availability hard disk drive high-performance computing HTTP Hypertext Transfer Protocol HTTPS Hypertext Transfer Protocol Secure iBMC intelligent baseboard management controller Industry Canada ICMP Internet Control Message Protocol...
  • Page 75 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper C Acronyms and Abbreviations LAN on motherboard media access control module management controller next business day NC-SI Network Controller Sideband Interface C.4 P-T PCIe Peripheral Component Interconnect Express power distribution unit...
  • Page 76 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper C Acronyms and Abbreviations RJ45 registered jack 45 RoHS Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment Serial Attached Small Computer System Interface SATA Serial Advanced Technology Attachment...
  • Page 77 FusionServer XH321L V5 Liquid-Cooled Server Node Technical White Paper C Acronyms and Abbreviations TCP offload engine trusted platform module C.5 U-Z UDIMM unbuffered dual in-line memory module UEFI Unified Extensible Firmware Interface unit identification light Underwriter Laboratories Inc. Universal Serial Bus...