action: Replace the faulted device, or use 'zpool clear' to mark the device repaired. The Amp Status value indicates whether the software has detected the amplification of the reaction for a given well. HPE Smart Array P408i-a SR Gen10 Controller. 1 and above, the thresholds for memory corrected errors has been removed. 50, Advanced ECC memory is the default memory protection mode for HPE servers. Though the cycling capability of SLC is helpful, it is not sufficient to build a high-endurance product. If the light is off, there is no drive activity or the system is powered off. 651 ON OFF Port Status Unit Size Blocks Serial ----- p0 OK u0 465. When color depth is degraded, displayed images use fewer colors. Trying to highlight the major (not a full list) differences in digital core of S4H as planned by SAP w. Cisco Live - CiscoExplore the new digital customer experience engagement platform. PRTG uses this channel in graphs and reports to show the amount of time in which the sensor was in the Down status. In Today’s high speed systems PCI Express (PCIe-Peripheral Component Interconnect-express) has become the backbone. Install the HP System Management software if possible. If the requested AMP mode is not supported by the installed DIMM configuration, the server boots in Advanced ECC mode. Reconfigure the memory modules for Advanced ECC mode. Explore the memory RAS technologies for HPE ProLiant/Synergy/Blade Gen10 servers, such as fast fault tolerance and advanced ECC support in this technical white paper. In addition to radiation damage, electronics that operate in spacecraft applications can be exposed to extreme temperatures – ranging from -55°C to 125°C – over mission lifetimes. Up status: Add, Good, Present; Warning status: Not Present, UpgradeAdvanced ECC Mode: Provides memory protection beyond Standard ECC. For 128-bit Advanced ECC, DIMMs. Advanced Memory Protection options are configured in the BIOS/Platform Configuration (RBSU). Troubleshooting. Letters are used for AMP mode DIMM ordering. . The module status. The DIMM configuration does not match the configured AMP mode. Last week I wanted to migrate workloads from the N-VDS to the VDS7, following a vSphere 7 upgrade. Metadata service on CVM ip_address is running in forwarding mode due to reason. Memory or battery problems were detected. Addresses an issue where Advanced. Instrumentation amplifiers, or in-amps, are used in industrial and consumer applications requiring the measurement and control of physical parameters. Specifically, if a node remains degraded for 7 or more days, the auto-resolve scan will run to identify whether the underlying issue has been fixed since the original alert. Software and configuration utilities. The Advanced ECC setting has been disabled. If the requested AMP mode is not supported by the installed DIMM configuration, the node boots in Advanced ECC mode. Advanced ECC Mode This mode uses two MCHs and “ties” them together to emulate a 128-bit data bus DIMM. 794 or higher, and have the end user approve the Cisco AMP system extensions and Full Disk Access. Advanced Memory Protection options are configured in UEFI. Online spare memory—Provides protection against failing or degraded DIMMs. 5") - - Boot drives (maybe mess around trying out the thread. From the System Utilities, select System Configuration > System Options > SATA ControllerOptions > Embedded SATA Configuration > Enable SW RAID and press the Enter key. This is where advanced ECC comes in. S4H can only be run on Hana database unlike ECC which can be run on Oracle , IBM DB2 etc. Protected—The system supports Advanced Memory Protection. he Advanced Memory Protection (AMP) system is operating with degraded redundancy. If you have already applied 22. 1. Mirrored memory—Provides maximum protection against failed DIMM s. Change the AMP Mode to Advanced ECC from RBSU. In short that DIMM is on its way out 😐. Secure Endpoint Console also provides to integrate iOS and Android devices, as they are in supervised mode. firmware_information. It also provides enhanced performance and endurance over the normal 3D NAND cell. From the System Utilities screen, select System Configuration > BIOS/Platform Configuration (RBSU) > System Options > Memory Operations > Advanced Memory Protection and press Enter. Advanced Memory Protection options are configured in RBSU. e. The DTU status Assign Transportation Unit is active for the delivery type and item type used in SAP EWM. CVM Crashed. NetApp controllers feature error-correcting code (ECC) memory modules (DIMM) for both main memory and the NVRAM subsystem. The software is included with servers when shipped and can also be downloaded. Or individually: nutanix@cvm$ ncc health_checks system_checks degraded_node_check. The CPU fan channel is "other" since this server does not have a dedicated CPU fan (only 4 chassis fans). All ratings are at 25°C with nominal rated voltages at 50% PWM. Data located on drives accessed in RAID mode is not compatible with data accessed from non-RAID mode; The Smart Array controller does not show logical drives after moving drives to a new server or JBOD; Data failure or disk errors on a server with a 10 SFF drive backplane or a 12 LFF drive backplane(In case you missed it, we have a comprehensive article explaining SSDs’ factory access mode: Life after Trim: Using Factory Access Mode for Imaging SSD Drives). Physical Memory Board 1. Example of standard inbound delivery profile /SCDL/INB_PRD_STANDARD. ECC memory is now standard in all HP ProLiant servers. Hewlett-packard server user manual (75 pages) Server HP ProLiant DL360 Specification. For more information, see "HPE ROM-Based Setup Utility (on page 94). 5min) 230 125 SR48400 400/4601 400. When Nutanix cluster declared any node as degraded node in cluster then Nutanix prism prompt following degrade node alert messages: 1. Refer to Chapter 5 in Memory Replacement Guideline and Advanced Memory Test for Intel® Server Products Based on Intel® 62X Chipset – White Paper for. Server Agents. Advanced ECC Support —Provides the largest memory capacity to the operating system while protecting the. If you are experiencing memory module degraded errors on your HPE server, you may find this document helpful. . And Ryzen with ECC support is a good choice for such a setup, given that Xeons offer half the performance for the same price. doc Last Saved On: 11/6/03 10:34 AMSupport Bulletins. Causes. Select a setting. 2021. Memory Optimized Mode：. Flashing amber = System health is degraded. Power supply 1 LED. You'll find the required documents and layout information you're looking for there. The Advanced Memory Protection option is configured in RBSU. ACTIVE = The high. 207-Memory Configuration Warning - DIMM In Socket x does not have Primary Width of 4 and only supports standard ECC Advanced ECC does not function when mixing DIMMs with Primary Widths of x4 and x8. Page 40: Fatal Dma ErrorLED Dual-Mode Red/IR Anti-Collision Light for the UH-60 Platform;. Source IP Address: '%1'; Source System GUID: '%2'; Server Hostname: '%3'; [SNMP TRAP:. If the requested AMP mode is not supported by the installed DIMM configuration, the server boots in Advanced. • AMP 90871-1 hand-crimping tool or equivalent • Tyco Electronics 58433-3 or equivalent • Wire-stripper pliers to remove insulation from size 10 AWG solid or stranded, insulated copper wire NOTE: Use alpha wire part number 3080. Advanced ECC Advanced ECC mode extends SDDC from x4 DRAM based DIMMs to both x4 and x8 DRAMs. Select a setting and press Enter. By default, the server is set to Advanced ECC mode. by the installed DIMM configuration, the server blade boots in Advanced ECC mode. restore just the files from one of the backup snapshots or. FYI, some improvements to the performance can be had by: Tuning the output, similar eff%. If the configured AMP mode is not supported by the installed FBDIMM configuration, the system boots in Advanced ECC mode. Memory lane failure The disabling of the memory module in the channel results in memory lane failure. Indicates the hard drive status: Blinking green indicates the fixed disk drive is active. If the requested AMP mode is not supported by the installed DIMM configuration, the server boots in Advanced ECC mode. File Size 6. FEC takes place in the electrical domain. User Action . For more information, see "HP ROM-Based Setup Utility (on page. Server HP 117755-003 - ProSignia - 740 Implementation Manual. Module [#] Condition. System Board. Select a. Do you want to know how to configure and use HPE Fast Fault Tolerance memory mode on HPE ProLiant Gen10 servers? This document provides you with the technical details, benefits, and best practices of this innovative memory protection feature. Once the ecc_check. 16 GB. View customer reviews of Advanced Appliances. Advanced ECC provides additional protection over Standard ECC because it is possible to correct certain memory errors that would. Advanced Memory Protection (AMP) AMP Mode Status: Degraded Target AMP Mode: Advanced ECC Operating AMP Mode: Advanced ECC Available AMP Modes: Advanced ECC Online Spare Mirrored Board Summary. Spinobulbar muscular atrophy (SBMA, OMIM 313200), also known as Kennedy’s disease, is a genetic neuromuscular disease caused by the presence of over 37 expansions of a microsatellite CAG trinucleotide tandem repeat encoding a polyglutamine (polyQ) tract in exon 1 of the androgen receptor (AR) gene 1. You can specify the memory operating mode. Advanced Memory Protection mode errors for NVDIMMs. The R730 can readily handle very demanding workloads, such as data warehouses, e-commerce, virtual desktop infrastructure (VDI), databases and high. Check SMART Status of Drives in Command Prompt or Command Prompt at Boot. So after some googleing people has tryed to resync without the parity but from i have not found anyone able to recover any data that way. Verify that the Advanced Memory Protection settings and DIMMs are installed according to the DIMM population guidelines in the server user guide. In this case, the drive measures the fraction of sectors that needed ECC correction applied after reading. Flagging a module with only correctable errors as degraded is premature, because data shows that in many cases correctableand also. n/a. Conducting Advanced Memory Tests. Consider restarting the controller. Advanced ECC has been activated. Latest version: 2. - Latest A/V formats for pristine picture quality and best immersive sound experience. SDDC is supported with x4 based DIMMs in every memory mode. HTH,-KennyFlashing green (1 Hz/cycle per sec): iLO is rebooting. " The server can operate in independent channel mode (performance) or combined channel mode (lockstep). 2500n inductor vs 625p = 2nd harmonic => 36dBr down, +/- 4pf tuning range, 165W. The module status. The webpage also offers links to download drivers, firmware, and software updates for the. Removing A 2. Options are: Optimizer Mode, Spare Mode, Mirror Mode,. PRTG uses this channel in graphs and reports to show the amount of time in which the sensor was in the Down status. 5 Inch Hard-Drive Blank; Removing A 3. Present. 91 ON OFF u2 SINGLE OK - - - 465. Kind regards, Erhard. Knowledge Base article: Summary. Parameter = 0 - the principle of moving by addresses. " The server can also operate in independent channel mode or combined channel mode (Lockstep). Flashing red (1 Hz/cycle per sec): System critical 3. 2. status=0. Brands. The amplifiers are 2RU high, and 381 mm (15 in) deep. Up status: OK; Down status: Degraded, Failed; Unknown status: Other; Module [#] Status. Letters identify the population order. x. From the System Utilities screen, select System Configuration > BIOS/Platform Configuration (RBSU) > System Options > Memory Operations > Advanced Memory Protection and press Enter. ECC on DRAM Lockstep DMA with ECC on memories & integrated CRC To SoC Island Delayed Lockstep or Decoupled Performance Core(s) & INT CTL. " • If the mode selected is not the desired mode, run RBSU and change the AMP mode. NetApp storage systems utilize error-correcting code (ECC) memory modules (DIMMs) for both main system memory and NVRAM/NVMEM. This version of the System ROM contains updates aligned with the Intel Product Update (IPU) version IPU. Spare with Advanced ECC. Operation Procedure. ECCAdditionally, Smart Array advanced pack license key enables RAID 6 Advanced Data Guarding (ADG), 6+0, advanced capacity expansion, mirror splitting and recombining in offline mode, drive erase, performance Optimization-Degraded reads. NOTE: This needs to be selected when Advanced Host Controller Interface mode is required on B140i controller. 298-IMPORTANT: The Boot Mode has been changed to Legacy Boot Mode for this boot only. ECC is accomplished by adding redundancy to the transmitted information using an algorithm. 60 revision. Flashing blue = System is being managed remotely. This version of the System ROM contains updates aligned with the Intel Product Update (IPU) version IPU. Use this component with Smart Update Manager to update supported HPE ProLiant Gen8 and Gen9, HPE Apollo Gen9, and HPE Synergy 480 Gen9 systems. If any degraded subsystems or devices exist, then click. The Storage Pool Management or Volume Management window opens. Now here are the specs of the 3 servers. " The server blade also can operate in independent channel mode or combined channel mode. Log in to the iLO web interface. The manual unhelpfully just states: A3DC - The system is protected by AMP in the A3DC mode. For more information, see the HPE UEFI System Utilities User Guide for HPE ProLiant Gen9 Servers on the Hewlett Packard Enterprise. DIMMs reporting correctable ECC errors should NOT be replaced only because correctable ECC errors are seen in EMS logs or if the “ CriticalCECCCountMemErrAlert ” system event and AutoSupport messages are seen. Degraded Advanced ECC—The system is protected by Advanced Memory Protection in the Advanced ECC . Hewlett-packard generation 4p (g4p) server quickspecs (48 pages) Server HP ProLiant DL360 SERIES User Manual. In addition to this, since all the DIMMs are identical, the memory configuration allows me to set Node. Server 1: HP ProLiant ML350 Gen 10. The document also includes installation instructions, configuration. For 128-bit Advanced ECC, DIMMs. exe for previous versions by default where x. ONTAP docs. Advanced ECC has been activated. ViciousXUSMC. n/a. The AMP option is configured in RBSU. memory mode to Optimized. High Efficiency Mode (Odd Supply Standby) —The system places the odd power supply in standby. Up status: Add, Good, Present; Warning status: Not Present, UpgradeChannel. desired mode. Therefore, memory modules are no longer reported as Inoperable or Degraded solely due to. The Dell PowerEdge R730 is a general-purpose platform with highly expandable memory (up to 768GB) and impressive I/O capabilities to match. ONTAP. • RAID-XOR —The system is protected by AMP in the XOR memory mode. Firmware Dependencies: None Problems. Degraded Mode is a term that refers to the status of a computer running RAID. Reconfigure the memory modules for Advanced ECC mode. SR-IOV is configured in the vswitch and in the VM network adapter, but the VM network adapters show up as degraded: get-vm -Name proxy-02. • Advanced ECC—The system can be configured for Advanced ECC. • Degraded RAID-XOR —The system is protected by AMP in the XOR memory mode. This issue does not occur if AMP mode is configured to any other mode except ADDDC. ECC Disabled: Recommended for GPU-accelerated, ray tracing applications. All the old memory is DDR3 - 8500E. [ 5. The targeted configuration has degraded or is operating with memory modules that have failed or predicted to fail. - Powerful, immersive 3D soundscape, even with a 2. 10. 32 GB ECC RAM. Hana database. Supported Operating Systems. 298-IMPORTANT: The Boot Mode has been changed to Legacy Boot Mode for this boot only. 1 and higher or C:Program FilesSourcefireFireAMPx. Off = Identification is deactivated. 10C by following the BIOS update guide. Additionally: $ sudo systemctl --failed UNIT LOAD ACTIVE SUB DESCRIPTION systemd-sysusers. See the table below for the list of alerts available in the Management Pack. 5") - - VMs/Jails; 1 xASUS Z10PA-D8 (LGA 2011-v3, Intel C612 PCH, ATX) - - Dual socket MoBo; 2 xWD Green 3D NAND (120GB, 2. delete the files ( zpool status -v will tell you which) clear the pool status. If the requested AMP mode is not supported by the installed DIMM configuration, the server boots in Advanced ECC mode. For more information, refer to HP ROM-Based Setup Utility (on page 56). By default, the server is set to Advanced ECC mode. 1. To display the Summary tab, click System Information in the navigation tree. smartctl -a <device> should tell you more about the disk. Reconfigure the memory modules for Advanced ECC mode. Option 4 – create shipment document in ECC with assigned HU based on TU assigned into outbound delivery order in EWM. com - online owner manuals library. scope session-2. The Management Pack for HPE 3PAR StoreServ creates alerts and provides recommended actions based on various symptoms (health status notifications and events) that it detects in your HPE 3PAR StoreServ environment. System will operate in Advanced ECC Mode. Certain memory is reserved as spare, and automatic failover to spare memory occurs when the system detects a DIMM that is degrading. UDIMMs and RDIMMs are familiar from their use in both ProLiant G6 and G7 servers. System will operate in Advanced ECC Mode. Back to. Online Spare Mode—Provides protection against failing or degraded DIMMs. For mirror mode, DIMMs must be installed in pairs. Removal Conditions. Check the Advanced Memory Protection configuration and replace the memory board and memory modules as necessary. Advanced ECC Support provides the largest memory capacity to the operating system. The original information may or may not appear literally in the encoded output; codes that include the unmodified input in the output are systematic, while those that do not are non. Normally this means the GPU must be present, and you would use the nvidia-smi command line tool to enable or disable it on the GPU in question. If the requested AMP mode is not supported by the installed DIMM configuration, the server boots in Advanced ECC mode. This option is. Select one or more disks. SAS/SATA/SSD/NVMe Drive Bays. If the power is off, view the rear panel RJ-45 LEDs for status (see Rear panel LEDs on page 8). If HP health status shows it as degraded then there is an issue, and need to be replaced. An enclosure has detected there may a problem with one or more of the fans. com - online owner manuals libraryI'm trying to install 2 16gb memory modules on a HPE ProLiant 160 DL gen 10 but no matter what I try, I get this error: 209 - Unsupported DIMM Configuration Detected - Installed DIMM configuration does NOT support configured AMP Mode. Install the DIMMs in a supported configuration. For more. An enclosure has detected there may a problem with one or more of the fans. regards. Up status: OK; Down status: Degraded, Failed; Unknown status: Other; Module [#] Status. I have a 6 Node 1065 system in 2 blocks. For more information, see the Channel Slot Slot number For the location of the slot numbers, see "DIMM slot locations (on page 9). . "Advanced ECC is the only mode in which hot-add operations are supported, and is the only mode in which the amount of memory available to the operating system can be increased without a reboot. Solution: Check other messages for a faulty memory module. Review all installed Subsystems and Devices to verify that all are marked OK and Green. 1. (Major Code:%3, Minor Code:%4). com - online owner manuals library Search Advanced Memory Protection options are configured in the BIOS/Platform Configuration (RBSU). Addresses an issue where Advanced Memory Protection (AMP) mode can be set while in custom workload mode. Hewlett Packard Enterprise Support CenterThe System Memory screen allows you to view all the memory settings as well as enable or disable specific memory functions such as system memory testing and node interleaving. 这三种有什么区别呢？. Cause A drive erase operation is queued, running, stopped, or has completed. 3 Network Operating in Degraded Style - 3. Depending on ECC release there are two different possibilities for this, either the ECC system sends IDOCs or sends XML messages directly. com site in several ways. If you opt for ignoring, then simply copy the messages and put them into "Known Warnings" in the sensor's "Settings" tab. However, LRDIMMs are a new class of DIMMs that work. Stack Exchange Network Stack Exchange network consists of 183 Q&A communities including Stack Overflow , the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. The adapter has recovered, but cached data was lost. service loaded failed failed Optimise system for running SAP workloads LOAD = Reflects. Solution: Check other messages for a faulty memory module. Possible Cause: This message indicates Mirrored Memory is enabled and indicates the amount of memory reserved for this feature. Online spare memory—Provides protection against failing or degraded DIMMs. While your output may vary, to check for EDAC information in dmesg you can run dmesg | grep EDAC (you may need to run this with root privileges). LockStep —The system is protected by AMP in the LockStep mode. Advanced Memory Protection options are configured in RBSU. Check the Advanced Memory Protection configuration and replace the memory board and. 60. Method. WMI. (Advanced ECC) User Action. From the System Utilities screen, select System Configuration > BIOS/Platform Configuration (RBSU) > Memory Options > Advanced Memory Protection. That will help identify to the root cause. (Major Code:%1 Minor Code:%2). If loaded values aren’t the same as above recommended settings, make it so, then click on Save. Click Manage, and then select Rebuild RAID Group. PCIe expansion slot definitions . Slot number Type Length Height Connector link width Negotiable link width . Helps identify a system installed in a high-density rack with other similar systems:Reboot the server. 04. If that is the case, then it would allow. Action . [WARN] System is in status "degraded". The Advanced ECC option was enabled in BIOS, but is no longer valid due to an unsupported memory configuration, possibly a faulty or removed memory module. Flashing amber: System degraded. Dell PowerEdge R730 and R730xd Technical Guide. It also explains. See Table 2-4 for more information. All single-bit failures and some multi-bit failures can be corrected without resulting in system downtime. Here's a (slightly outdated) screenshot:ncc health_checks hardware_checks disk_checks disk_online_checks. • Advanced ECC—The system is protected by AMP in the Advanced ECC mode. Cause - Advanced Memory Protection is set to an option other than Advanced ECC. SA_Fan_status_Degraded_Rule: HewlettPackard. Verify that the DIMMs are supported on the server. Hardware issues (such as unreliable DIMM with ECC errors). ECC memory In 1993, HP was the first company to introduce ECC memory in industry-standard servers. Parity checking providesAdvanced ECC Support provides the largest memory capacity to the operating system. High Efficiency Mode (Auto) —The system selects between the odd or even power supply based on a semirandom distribution within a group of systems. " The server also can operate in independent channel mode or combined channel mode (lockstep). Note: Please keep in mind, Advanced Custom Detections only work on files of unknown disposition. ProLiant DL380 Server. On Step 4, revert back to the desired workload profile and AMP mode "Fast Fault Tolerant Memory (ADDDC)". The degraded node detection feature was introduced in AOS 4. Servers. ROM v2. Manual. One MCH is completely un-utilized, and any. A POST message displays: Unsupported DIMM configuration detected - Installed DIMM configuration does NOT support configured AMP Mode. The current memory configuration may support only the minimum frequency. Data located on drives accessed in RAID mode is not compatible with data accessed from non-RAID mode; The Smart Array controller does not show logical drives after moving drives to a new server or JBOD; Data failure or disk errors on a server with a 10 SFF drive backplane or a 12 LFF drive backplaneこれらの修正可能なエラーは、UCSMの操作可能状態で次のように報告されます Degraded 全体的な操作性は – Operable エラーを修正できます。 修正不可能なエラーがあると、アプリケーションまたはオペレーティングシステムが実行を継続できなくなり. The System Utilities screen displays. Note: If the workload profile does not allow to change the AMP mode to "Advanced ECC Support" as in Step 1, set the Custom workload profile to configure the "Advanced ECC Support". Thus, AMDC uses existing ECC chips on RDIMMs to provide the data protection. Letters are used for AMP mode DIMM ordering. A unit whose status is failure is marked with an asterisk (*). First, you'll need to erase your iPhone. Checking the Boot Pool Status, it shows me the following: my questions: 1. Advanced ECC Mode—Provides memory protection beyond Standard ECC. I was looking around a HPE DL380 G10 settings and noticed under the Advanced Memory Protection (AMP) a mode called 'A3DC', but can't find any documentation that explains what the mode is, or does. Configuring AMP modes Not all HP ProLiant servers support all AMP modes. DDR3的内存控制器都在CPU上，每个CPU上有三个独立的Memory Controller Hub (MCH)。. The user will receive the notice "ARRAY IS DEGRADED - 1 disk is missing" when the array enters degraded mode. Advanced ECC detects and corrects 4bit memory errors that occur within a single DRAM chip on a DIMM. 2 Channel 100W AV Receiver. PCIe is a third generation high performance I/O bus used to interconnect peripheral devices in applications such as computing and communication platforms. Recently one of the CVMs (node 2, block A) crashed. Note: For the Virtual Delivery Agent 7. internal. This architecture also enables Online Spare Memory mode. Flashing red = System health is critical. 55). RBSU provides menu options only for the modes supported by the server. This mode is the default option for this server. When your system’s health status is degraded, you can show alerts, read about the probable cause and corrective actions, show information about the degraded. Folks, I have recently purchased a Catalyst C9117AXI-EWC-B access point. Advanced Memory Protection has detected a memory fault. Uncorrectable errors in one channel are corrected by the mirror channel. Pairs must be matched in size and geometry. This document provides the technical specifications and features of the HPE ProLiant DL380 G5 server, including memory, processor, storage, and network options. One or more DIMM faults have been detected. If the requested AMP mode is not supported by the installed DIMM configuration, the server boots in Advanced ECC mode. All NVDIMMs in the system are disabled. Advanced ECC Memory . 2021. Document - Advisory: (Revision) HPE ProLiant/Synergy Gen10 Servers. Respond to degraded system health. 5 Inch Hard. 3, 4. I also believe it will perform ECC validation when doing the actual testing. The targeted configuration has degraded or is operating with memory modules that have failed or predicted to fail. In system ROM revisions prior to 1. n/a. SBMA affects. Board Status. " The server blade also can operate in independent channel mode or combined channel mode. Parity checking providesThe viral mode is an advanced fault-tolerant feature designed for fatal errors. com | Get-VMNetworkAdapter. Red = System critical. System will operate in Advanced ECC Mode. MEMTEST lane failure detected on x. HP ProLiant DL380 Server User Manual • Memory configurations, Advanced ecc memory configuration • HP Computer hardware Manuals Directory ManualsDir.