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About this manual ® This manual provides service and reference information for ThinkStation computers listed on the front cover. Illustrations in this manual might look different from your product. Use this manual along with the advanced diagnostic tests to troubleshoot problems. Important: This manual is intended only for trained service technicians who are familiar with ThinkStation computers.
Electrical safety CAUTION: Electrical current from power, telephone, and communication cables can be hazardous. To avoid personal injury or equipment damage, disconnect the attached power cords, telecommunication systems, networks, and modems before you open the computer covers, unless instructed otherwise in the installation and configuration procedures.
– Power supply units – Pumps – Blowers and fans – Motor generators and similar units. (This practice ensures correct grounding of the units.) • If an electrical accident occurs: – Use caution; do not become a victim yourself. – Switch off power. –...
Handling electrostatic discharge-sensitive devices Any computer part containing transistors or integrated circuits (ICs) should be considered sensitive to electrostatic discharge (ESD). ESD damage can occur when there is a difference in charge between objects. Protect against ESD damage by equalizing the charge so that the machine, the part, the work mat, and the person handling the part are all at the same charge.
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• Spanish DANGER Electrical current from power, telephone and communication cables is hazardous. To avoid a shock hazard: • Do not connect or disconnect any cables or perform installation, maintenance, or reconfiguration of this product during an electrical storm. • Connect all power cords to a properly wired and grounded electrical outlet. •...
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When laser products (such as CD-ROMs, DVD-ROM drives, fiber optic devices, or transmitters) are installed, note the following: • Do not remove the covers. Removing the covers of the laser product could result in exposure to hazardous laser radiation. There are no serviceable parts inside the device. •...
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≥18 kg (37 lb) ≥32 kg (70.5 lb) ≥55 kg (121.2 lb) ThinkStation P8 Hardware Maintenance Manual...
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PERIGO A corrente elétrica proveniente de cabos de alimentação, de telefone e de comunicações é perigosa. Para evitar risco de choque elétrico: • Não conecte nem desconecte nenhum cabo ou execute instalação, manutenção ou reconfiguração deste produto durante uma tempestade com raios. •...
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PRECAUCIÓN: Quando produtos a laser (como unidades de CD-ROMs, unidades de DVD-ROM, dispositivos de fibra ótica ou transmissores) estiverem instalados, observe o seguinte: • Não remova as tampas. A remoção das tampas de um produto a laser pode resultar em exposição prejudicial à...
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DANGER Le courant électrique provenant de l'alimentation, du téléphone et des câbles de transmission peut présenter un danger. Pour éviter tout risque de choc électrique : • Ne manipulez aucun câble et n'effectuez aucune opération d'installation, d'entretien ou de reconfiguration de ce produit au cours d'un orage.
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Connexion Déconnexion 1. Mettez les unités HORS TENSION. 1. Mettez les unités HORS TENSION. 2. Commencez par brancher tous les cordons sur les 2. Débranchez les cordons d'alimentation des prises. unités. 3. Débranchez les câbles d'interface des connecteurs. 3. Branchez les câbles d'interface sur des 4.
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≥18 kg (37 lb) ≥32 kg (70.5 lb) ≥55 kg (121.2 lb) ATTENTION: Soulevez la machine avec précaution. ATTENTION: L'interrupteur de contrôle d'alimentation de l'unité et l'interrupteur dubloc d'alimentation ne coupent pas le courant électrique alimentantl'unité. En outre, le système peut être équipé de plusieurs cordonsd'alimentation.
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• Geräte niemals einschalten, wenn Hinweise auf Feuer, Wasser oder Gebäudeschäden vorliegen. • Die Verbindung zu den angeschlossenen Netzkabeln, Telekommunikationssystemen, Netzwerken und Modems ist vor dem Öffnen des Gehäuses zu unterbrechen, sofern in den Installations- und Konfigurationsprozeduren keine anders lautenden Anweisungen enthalten sind. •...
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Einige Lasergeräte enthalten eine Laserdiode der Klasse 3A oder 3B. Beachten Sie Folgendes: Laserstrahlung bei geöffneter Verkleidung. Nicht in den Strahl blicken. Keine Lupen oder Spiegel verwenden. Strahlungsbereich meiden. ≥18 kg ≥32 kg ≥55 kg ACHTUNG: Arbeitsschutzrichtlinien beim Anheben der Maschine beachten. ACHTUNG: Mit dem Netzschalter an der Einheit und am Netzteil wird die Stromversorgung für die Einheit nicht unterbrochen.
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PERICOLO La corrente elettrica proveniente dai cavi di alimentazione, del telefono e di comunicazione può essere pericolosa. ThinkStation P8 Hardware Maintenance Manual...
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Per evitare il rischio di scosse elettriche: • Non collegare o scollegare qualsiasi cavo oppure effettuare l'installazione, la manutenzione o la riconfigurazione del prodotto durante un temporale. • Collegare tutti i fili elettrici a una presa di alimentazione correttamente cablata e dotata di messa a terra.
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Quando vengono installati prodotti laser (quali CD-ROM, unità DVD-ROM, unità a fibre ottiche o trasmittenti), tener presente quanto segue: • Non rimuovere gli sportelli. L'apertura di un'unità laser può determinare l'esposizione a radiazioni laser pericolose. All'interno dell'unità non vi sono parti su cui effettuare l'assistenza tecnica. •...
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PELIGRO La corriente eléctrica procedente de cables de alimentación, teléfonos y cables de comunicación puede ser peligrosa. Para evitar el riesgo de descarga eléctrica: • No conecte ni desconecte los cables ni realice ninguna tarea de instalación, mantenimiento o reconfiguración de este producto durante una tormenta eléctrica. •...
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• Cualquier equipo que se conecte a este producto también debe conectarse a tomas de corriente debidamente cableadas. • Siempre que sea posible, utilice una sola mano para conectar o desconectar los cables de señal. • No encienda nunca un equipo cuando hay señales de fuego, agua o daños estructurales. •...
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PELIGRO Algunos productos láser tienen incorporado un diodo láser de clase 3A o clase 3B. Tenga en cuenta lo siguiente: Cuando se abre, queda expuesto a radiación láser. No mire directamente al rayo láser, ni siquiera con instrumentos ópticos, y evite exponerse directamente al rayo láser. ≥18 kg ≥32 kg ≥55 kg...
Dynamic Configure To Order (CTO) model This model provides the ability for a customer to configure a Lenovo solution from a Web site, and have this configuration sent to fulfillment, where it is built and shipped directly to the customer. The machine label and eSupport will load these products as the 4-character MT, 4-character model, and 2-character country code.
Rear Description Description Item Item PCIe card areas Power button Power indicator Audio line-out connector USB-C connector (USB 20Gbps) Audio line-in connector USB-A connectors (USB 10Gbps) USB-A connectors (Hi-Speed USB) Key-nest for side cover Ethernet connector (10G) Key-nest for M.2 SSD storage box Serial connector* Ethernet connector (1G) Security-lock slot...
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* for selected models Expansion rules Location Name • Each internal storage drive cage can support the following storage drives: – Up to one 3.5-inch HDD Internal storage – Up to two M.2 SSD 1a, 1b drive cages* – Up to one U.2 or U.3 SSD •...
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Expansion rules Location Name PCIe slot types and PCIe card installation priority are as follows. PCIe slots Note: See “PCIe card installation rule” on page 93 for more details. • Supported memory module type: – DDR5-4800 ECC RDIMM (16GB, 32GB, or 64GB) –...
Expansion rules Location Name The optional internal storage drive cage can support a 3.5-inch HDD when: Optional • 1a and 1b are both occupied with 3.5-inch HDDs, and internal storage • the computer is not installed with NVIDIA Quadro SYNC II card or GeForce 40X0 drive cage* graphics card.
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* for selected models Description Description Item Item Memory fans and air ducts Upper PCIe fan Front-access storage fan* Front fan* Internal storage drive fan* Lower PCIe fan Power supply assembly fan Microprocessor heat sink Rear fan Note: To replace the fans and heat sinks, see “Fans” on page 96. Chapter 3 Product overview...
– If it has been working, what changes were made prior to its failing? – Is this the original reported failure? • Diagnostics version – Type and version level • Hardware configuration – Print (print screen) configuration currently in use –...
Error FRU/Action The boot sector on the startup drive is corrupted. The drive must be formatted. Do the following: 1. Attempt to back up the data on the failing hard disk drive. 2. Using the operating system programs, format the hard disk drive.
POST error codes Each time you turn on the system, it performs a series of tests that check the operation of the system and some options. This series of tests are called the Power-On Self-Test, or POST. POST checks the following operations: •...
POST error message Description/Action Error code 8998 Not enough shadow RAM resources This error message is displayed for OPTION ROM, not all devices when the shadow RAM resources initialized. Suggest to remove some for option ROM are insufficient. add-on cards, or change to UEFI If the legacy option ROM is mode in BIOS setup.
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Message/Symptom FRU/Action Blank screen except for flashing cursor. 1. System Board 2. Primary Hard Disk Drive 3. Hard Disk Drive Cable Incorrect memory size during POST 1. Run the Memory tests. 2. Memory Module 3. System Board "Insert a Diskette" icon appears with a known-good 1.
Note: Depending on the computer model, the recovery process will take two to three minutes. 8. Disconnect all power cords from electrical outlets. 9. Move the jumper back to the standard position. 10. Reinstall all the parts that have been removed. Then, reconnect the power cords for the computer and the monitor to electrical outlets.
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– Support 2-8 disks. – RAID 0 arrays are useful for holding information, such as the operating system paging file, where performance is extremely important but redundancy is not. • RAID 1: mirrored disk array – Mirror data on a partition of one disk to another. –...
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Note: The Initialization process takes about 10 to 15 seconds. During initialization, a complete re- scan of all channels is done automatically. Create arrays Arrays can be created after the disks are initialized: 1. Enter the RAIDXpert2 Configuration Utility menu. Then, use the arrow keys to select Array Management and press Enter.
View array details This option displays the details of an array. Nothing can be changed using this menu option. It is for informational purposes only. 1. Enter the RAIDXpert2 Configuration Utility menu. Then, use the arrow keys to select Array Management and press Enter.
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– Data being striped across storage drive groups – Provides both high data transfer rates and complete data redundancy • RAID 5: block-level striped disk array with distributed parity – Consists of at least three NVMe storage drives – Supported strip size: 64 KB, 128 KB, 256 KB, 512 KB, or 1 MB –...
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View the information about a RAID volume To view the information about a RAID volume: 1. Restart the computer. When the logo screen is displayed, press F1 or Fn+F1. 2. Select Devices ➙ MegaRAID Configuration Utility and press Enter. 3. Select Main Menu and press Enter. 4.
4. Run the diagnostic program. 5. Recover your operating system. See “Self-help resources” on page 53. 6. If the problem persists, contact Lenovo. UEFI diagnostic program A UEFI diagnostic program is preinstalled on the computer. It enables you to test memory modules and internal storage devices, view system information, and check and recover bad sectors on internal storage devices.
If you are unable to isolate and resolve the problem after running the Vantage app, save and print the log files created by the program. You might need the log files when you speak to a Lenovo technical support representative.
How to access? • https://www.lenovo.com/tips Troubleshooting and frequently asked questions • https://forums.lenovo.com Accessibility information https://www.lenovo.com/accessibility • Use Lenovo recovery options. 1. Go to https://support.lenovo.com/ HowToCreateLenovoRecovery 2. Follow the on-screen instructions. • Use Windows recovery options. Reset or restore Windows 1. Go to https://pcsupport.lenovo.com...
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Resources How to access? Lenovo Support Web site with the latest support information of the following: • Drivers and software • Diagnostic solutions https://pcsupport.lenovo.com • Product and service warranty • Product and parts details • Knowledge base and frequently asked questions •...
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Tool name Specification Product scope Tool type Pry tools 1 Common tool Tweezers (conductive) Common tool Tweezers (isolated) Common tool Suction cup Common tool Hexagonal socket (for VGA ) H5 mm or 4.8 mm ThinkCentre/Tiny Common tool H8 mm Hexagonal socket (for ThinkCentre/Tiny Common tool Tiny antenna)
Tool name Specification Product scope Tool type Double sided tape Consumable Conductive tape Consumable Cleaning pads/wipes Consumable Heat gun Special Tool (Depot only) Brown brush 25 mm to 35 mm wide Special tool Contact Cleaner Spray WD-40 Contact Cleaner for ThinkPad X1 Carbon Special tool battery connector...
BMC card* * for selected models For detailed FRU and CRU information, such as the FRU part numbers and supported computer models, go http://www.lenovo.com/serviceparts-lookup System board illustration Note: The system board might look slightly different from the illustration. ThinkStation P8 Hardware Maintenance Manual...
Item Item Power supply connector BMC card connector PCIe slot 7 - Gen 4 x 8 PCIe slot 6 - Gen 5 x 16 PCIe slot 5 - Gen 5 x 16 CPU fan connector 2 Memory fan 2 connector Serial port (COM) connector Internal storage drive cage slot 2 Graphics card power connector 2...
Prerequisites for hot-swappable M.2 SSD storage box replacement For some computer models, an NVMe storage tray might be installed in the front-access storage bay. The M.2 SSD storage box( ) in the NVMe storage tray( ) can be hot-swappable, which means you can replace the M.2 SSD inside without even turning off your computer.
Removal steps Computer ID badge Before you start, ensure that you have read “Prerequisite for CRU replacement” on page 62. Removal steps Top cover Before you start, ensure that you have read “Prerequisite for CRU replacement” on page 62. ThinkStation P8 Hardware Maintenance Manual...
Wi-Fi antenna cover Before you start, ensure that you have read “Prerequisite for CRU replacement” on page 62. Removal steps 1. Remove the “Top cover” on page 64. 2. Remove the Wi-Fi antenna cover. Keys for side cover and M.2 SSD storage box Before you start, ensure that you have read “Prerequisite for CRU replacement”...
Removal steps Notes: • Keys carved with xx, such as 00, 01, 02, or 03 can unlock the locks carved with the same numbers. • To unlock, turn the key clockwise to the position with a circle mark on the lock. To lock, turn the key counterclockwise.
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Notes: • The lock for side cover and the unlocking step are for selected models. • The key is attached at the rear of the computer. Installation steps ThinkStation P8 Hardware Maintenance Manual...
Power supply assembly Before you start, ensure that you have read “Prerequisite for CRU replacement” on page 62. Removal steps 1. Remove the “Side cover” on page 67. 2. Remove the power supply assembly. Storage drives By reading this section, you will learn to replace storage drives in your computer. For their types, locations, and rules, see “Expansion modules”...
2. Remove the optional internal storage drive cage. HDD in optional internal storage drive cage Before you start, ensure that you have read “Prerequisite for CRU replacement” on page 62. Removal steps 1. Remove the following parts, if any: a. “Side cover” on page 67 b.
Note: When the computer is installed with NVIDIA Quadro SYNC II card or GeForce 40X0 graphics card, do not install 3.5-inch HDD in the optional internal storage drive cage. HDD in the internal storage drive cage Before you start, ensure that you have read “Prerequisite for CRU replacement” on page 62. Removal steps 1.
U.2 or U.3 SSD in the internal storage drive cage Before you start, ensure that you have read “Prerequisite for CRU replacement” on page 62. Removal steps 1. Remove the “Side cover” on page 67. 2. Remove the U.2 or U.3 SSD with its bracket from the internal storage drive cage. 3.
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Screw specification Quantity Torque M3 x 3.75 mm, Zn coated, black 5.0 ± 0.5 lb/in Screw specification Quantity Torque M3 x 2 mm, Zn coated, blue 5.0 ± 0.5 lb/in Chapter 7 Hardware removal and installation...
M.2 SSD bracket in internal storage drive cage Before you start, ensure that you have read “Prerequisite for CRU replacement” on page 62. Removal steps 1. Remove the “Side cover” on page 67. 2. Remove the M.2 SSD bracket from the chassis. ThinkStation P8 Hardware Maintenance Manual...
Device in the front-access storage bay Before you start, ensure that you have read “Prerequisite for CRU replacement” on page 62. Removal steps 1. Remove the following parts if any: a. “Side cover” on page 67 b. “Optional internal storage drive cage” on page 69 c.
Screw specification Quantity Torque M3 x 4 mm, Zn coated, blue 3.0 ± 0.5 lb/in Screw specification Quantity Torque M3 x 5 mm, Ni coated, black 5.0 ± 0.5 lb/in • Blank bezel: M.2 SSD storage box in NVMe storage tray Before you start, ensure that you have read “Prerequisite for CRU replacement”...
Removal steps 1. Remove the “Keys for side cover and M.2 SSD storage box” on page 66 (if available). 2. Remove the M.2 SSD storage box. Notes: • The lock for M.2 SSD storage box and the unlocking step are for selected models. •...
Screw specification Quantity Torque M2 x 3.6 mm, Zn coated, blue 1.5± 0.2 lb/in 3. Remove the M.2 SSD. Screw specification Quantity Torque M2 x 4.5 mm, Zn coated, black 1.5± 0.2 lb/in On-board M.2 SSD Before you start, ensure that you have read “Prerequisite for CRU replacement” on page 62. Install the on-board M.2 SSDs in the following order.
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Removal steps 1. Remove the following parts if any: a. “Side cover” on page 67 b. “Optional internal storage drive cage” on page 69 2. Remove the M.2 SSD with its heatsink kit. 3. Remove the M.2 SSD from its heatsink kit. Chapter 7 Hardware removal and installation...
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Installation steps 1. Install the M.2 SSD to its heatsink kit. 2. Install the M.2 SSD with its heatsink kit. ThinkStation P8 Hardware Maintenance Manual...
On-board M.2 SSD holder Before you start, ensure that you have read “Prerequisite for CRU replacement” on page 62. Replacement steps 1. Remove the following parts if any: a. “Side cover” on page 67 b. “Optional internal storage drive cage” on page 69 c.
• Type 2 M.2 SSD in a PCIe adapter • Before you start, ensure that you have read “Prerequisite for CRU replacement” on page 62. • Install M.2 solid-state drives in the following order as shown: ThinkStation P8 Hardware Maintenance Manual...
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Replacement steps 1. Remove the left side cover. See “Side cover” on page 67. 2. Remove the M.2 SSD PCIe adapter from the PCIe card slot. See “Full-length PCIe card” on page 92. 3. Open the cover. 4. Remove the SSD. Chapter 7 Hardware removal and installation...
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5. If necessary, move the retention latch to an appropriate location to suit the length of the new M.2 SSD. 6. Remove the film and release the latch. ThinkStation P8 Hardware Maintenance Manual...
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7. Install a new SSD. 8. Close the cover. Chapter 7 Hardware removal and installation...
9. Install the M.2 SSD PCIe adapter in a PCIe x 16 card slot on the system board. See “System board illustration” on page 60. 10. Reinstall all removed parts. Then, reconnect the power cord and all disconnected cables to the computer.
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4. Remove the SSD. Screw specification Quantity Torque M3 x 5 mm, Zn coated, black 5.0 ± 0.5 lb/in 5. Install a new SSD. Chapter 7 Hardware removal and installation...
Screw specification Quantity Torque M3 x 5 mm, Zn coated, black 5.0 ± 0.5 lb/in 6. Close the cover. 7. Install the U.2 or U.3 SSD PCIe adapter in a PCIe x 16 card slot on the system board. See “System board illustration”...
Screw specification Quantity Torque M3 x 5 mm, Ni coated, black 5.0 ± 0.5 lb/in Note: The screw cannot be removed from the NVLINK retainer. NVLINK bridge Before you start, ensure that you have read “Prerequisite for CRU replacement” on page 62. Removal steps 1.
Installation notice When installing the super capacitor module, connect the super capacitor module cable to the J14 connector on the RAID card. PCIe card bracket Before you start, ensure that you have read “Prerequisite for CRU replacement” on page 62. Removal steps 1.
Half-length PCIe card Before you start, ensure that you have read “Prerequisite for CRU replacement” on page 62. Removal steps 1. Remove the “Side cover” on page 67. 2. Remove the PCIe card. a. Remove the PCIe card retainer. The PCIe card retainer is only available on some PCIe cards. b.
Full-length PCIe card Before you start, ensure that you have read “Prerequisite for CRU replacement” on page 62. Removal steps 1. Remove the “Side cover” on page 67. 2. Remove the PCIe card. a. Open the handle. b. Remove the PCIe card. The card might fit tightly into the slot. If necessary, alternately move each side of the card a small amount until the card is removed from the slot.
c. Remove the PCIe card extender if needed. Notes: • For computer models with GFX RTX 4000 Ada, the graphics card and the PCIe card extender work as a CRU assembly. Do not try to remove the extender. • For computer models with double-width or wider graphics cards (such as NVIDIA RTX 6000 Ada and GeForce RTX 40X0), the PCIe card extender is a customized CRU part.
PCIe card Installation rule NVIDIA GeForce RTX 40X0 graphics card Install in Slot 1. Two RTX A6000 graphics cards with NVLink Install in Slot 1 and Slot 3. AMD Radeon PRO W7900 graphics card Install in Slot 1 or Slot 5 (Slot 1 is prior to Slot 5). M.2/U.2/U.3 SSD PCIe adapter, NVIDIA ConnectX-6 Install in Slot 5, Slot 1, or Slot 6.
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Figure 2. GFX GV100/RTX A5000/RTX A4000 Aux power connection Figure 3. GFX RTX A6000 Aux power connection Chapter 7 Hardware removal and installation...
Figure 4. Cable connection for NVIDIA Quadro SYNC II card Fans By reading this section, you will learn to replace the fans in your computer. Front fan Before you start, ensure that you have read “Prerequisite for CRU replacement” on page 62. Removal steps 1.
Removal steps 1. Remove the following parts if any: a. “Side cover” on page 67 b. “Optional internal storage drive cage” on page 69 2. Remove the rear fan. Upper PCIe fan Before you start, ensure that you have read “Prerequisite for CRU replacement” on page 62. Removal steps 1.
Lower PCIe fan and internal storage drive fan Before you start, ensure that you have read “Prerequisite for CRU replacement” on page 62. Removal steps 1. Remove the following parts if any: a. “Side cover” on page 67 b. “Optional internal storage drive cage” on page 69 c.
Removal steps 1. Remove the following parts if any: a. “Side cover” on page 67 b. “Optional internal storage drive cage” on page 69 2. Remove the front-access storage fan. Memory fan and air duct Before you start, ensure that you have read “Prerequisite for CRU replacement” on page 62. Removal steps 1.
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Removal steps 1. Remove the following parts if any: a. “Side cover” on page 67 b. “Optional internal storage drive cage” on page 69 c. “Memory fan and air duct” on page 99 Installation steps Note: Ensure that you install memory modules in the order shown in the following illustration. ThinkStation P8 Hardware Maintenance Manual...
Front panel I/O assembly Before you start, ensure that you have read “Prerequisite for CRU replacement” on page 62. Removal steps 1. Remove the following parts if any: a. “Side cover” on page 67 b. “Optional internal storage drive cage” on page 69 c.
a. “Side cover” on page 67 b. “Optional internal storage drive cage” on page 69 c. “Front fan” on page 96 d. “Lower PCIe and internal storage drive fan” on page 98 2. Remove the ThinkStation LED. 3. Remove the ThinkStation LED holder. Internal speaker Before you start, ensure that you have read “Prerequisite for CRU replacement”...
BMC card Before you start, ensure that you have read “Prerequisite for CRU replacement” on page 62. Removal steps 1. Remove the following parts if any: a. “Side cover” on page 67 b. “Power supply assembly” on page 69 2. Vertically pull the BMC cable from the connector on the BMC card. 3.
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Installation steps 1. Connect the BMC cable, with the “BMC” end to the BMC card and the “Main” end to the system board. 2. Install the BMC card in PCIe slot 7 and close the handle. ThinkStation P8 Hardware Maintenance Manual...
Wi-Fi card and Wi-Fi card cover Before you start, ensure that you have read “Prerequisite for CRU replacement” on page 62. Removal steps 1. Remove the “Side cover” on page 67. 2. Remove the Wi-Fi card and Wi-Fi card cover. Screw specification Quantity Torque...
3. Remove the front and rear Wi-Fi antenna. Intrusion switch Before you start, ensure that you have read “Prerequisite for CRU replacement” on page 62. Removal steps 1. Remove the “Side cover” on page 67. 2. Remove the intrusion switch. ThinkStation P8 Hardware Maintenance Manual...
Thermal sensor Before you start, ensure that you have read “Prerequisite for CRU replacement” on page 62. Removal steps 1. Remove the following parts: a. “Side cover” on page 67 b. “Front fan” on page 96 2. Remove the thermal sensor. Serial connector cable Before you start, ensure that you have read “Prerequisite for CRU replacement”...
b. “Rear fan” on page 96 2. Remove the serial connector cable. Screw specification Quantity Torque #4–40 x 11.8 mm, Ni coated, clear 3.0 ± 0.5 lb/in CPU heat sink Before you start, ensure that you have read “Prerequisite for CRU replacement” on page 62. Removal steps 1.
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Notes: • You need T-20 screw bit longer than 6 inches to remove or install the CPU heat sink. • The screws cannot be removed from the CPU heat sink. • Place the CPU heat sink on its side. Ensure that the thermal grease on the bottom of it does not get in contact with anything.
Before you start, ensure that you have read “Prerequisite for CRU replacement” on page 62. Removal steps 1. Remove the following parts if any: a. “Side cover” on page 67 b. “Optional internal storage drive cage” on page 69 c. “CPU heat sink” on page 108 2.
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Install steps Install the CPU. Notes: • Ensure that you install the correct type of CPU option your computer supports. • Touch only the edges of the CPU. Do not touch the pins on the microprocessor socket or the gold contacts on the bottom of the new microprocessor.
• Before you attach the CPU to the computer, clean all thermal grease that has been used and then apply new thermal grease. Apply new thermal grease at an amount of 2.5 grams, on the parts marked shown in the following illustrations. Either too much or too less application of grease can cause a thermal problem due to imperfect contact with a component.
g. “Half-length PCIe card” on page 91 h. “Full-length PCIe card” on page 92 “Front fan” on page 96 “Upper PCIe fan” on page 97 k. “Front-access storage fan” on page 98 “Rear fan” on page 96 m. “Memory fan and air duct” on page 99 n.
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a. “Side cover” on page 67 b. “Power supply assembly” on page 69 c. “Optional internal storage drive cage” on page 69 d. “Devices in the front-access storage bay” on page 75 e. “On-board M.2 SSD” on page 78 “NVLINK bridge” on page 89 g.
Lenovo representative for information on the products and services currently available in your area. Any reference to a Lenovo product, program, or service is not intended to state or imply that only that Lenovo product, program, or service may be used. Any functionally equivalent product, program, or service that does not infringe any Lenovo intellectual property right may be used instead.
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Furthermore, some measurements may have been estimated through extrapolation. Actual results may vary. Users of this document should verify the applicable data for their specific environment. This document is copyrighted by Lenovo and is not covered by any open source license, including any ® Linux agreement(s) which may accompany software included with this product.
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