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Summary of Contents for Lenovo 90H9
- Page 1 Lenovo Legion Y720T Hardware Maintenance Manual Machine Types: 90H9 [Lenovo Legion Y720T-34ASU/Energy Star]...
- Page 3 Lenovo Legion Y720T Hardware Maintenance Manual Machine Types: 90H9 [Lenovo Legion Y720T-34ASU/Energy Star]...
- Page 4 First Edition (July 2017)15th © Copyright Lenovo 2017. LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software are delivered pursuant a General Services Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. GS-35F-05925...
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Page 5: Table Of Contents
Specifications . . 11 Chapter 4. General Checkout . . 13 Chapter 5. Using the Setup Utility . . 15 Starting the Lenovo BIOS Setup Utility program . . 15 Viewing and changing settings. . 15 Using passwords . . 15 Enabling or disabling a device . - Page 6 Replacing a graphics card . . 50 Replacing the CPU . 51 Replacing the motherboard . . 55 FRU lists . . 56 Chapter 9. General information. . 63 Additional Service Information . . 63 Lenovo Legion Y720T Hardware Maintenance Manual...
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Page 7: Chapter 1. About This Manual
(iv) cause additional heat or other damage; and (v) affect system data integrity. Lenovo and Intel have not tested, and do not warranty, the operation of the processor beyond its specifications. Lenovo and Intel have not tested, and do not warranty, the operation of other system components beyond their industry standard specifications. - Page 8 Certifique-se de ler todas as instruções de cuidado e perigo neste manual antes de executar qualquer uma das instruções Es importante que lea todas las declaraciones de precaución y de peligro de este manual antes de seguir las instrucciones. Lenovo Legion Y720T Hardware Maintenance Manual...
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Page 9: Chapter 2. Safety Information
• After service, reinstall all safety shields, guards, labels, and ground wires. Replace any safety device that is worn or defective. • Reinstall all covers correctly before returning the machine to the customer. © Copyright Lenovo 2017... -
Page 10: Electrical Safety
• If you need to work on a machine that has exposed electrical circuits, observe the following precautions: – Ensure that another person, familiar with the power-off controls, is near you. Lenovo Legion Y720T Hardware Maintenance Manual... -
Page 11: Safety Inspection Guide
Remember: Another person must be there to switch off the power, if necessary. – Use only one hand when working with powered-on electrical equipment; keep the other hand in your pocket or behind your back. Remember: There must be a complete circuit to cause electrical shock. By observing the above rule, you may prevent a current from passing through your body. -
Page 12: Handling Electrostatic Discharge-Sensitive Devices
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. Lenovo Legion Y720T Hardware Maintenance Manual... -
Page 13: Grounding Requirements
Notes: 1. Use product-specific ESD procedures when they exceed the requirements noted here. 2. Make sure that the ESD protective devices you use have been certified (ISO 9000) as fully effective. When handling ESD-sensitive parts: • Keep the parts in protective packages until they are inserted into the product. •... - Page 14 The battery contains lithium and can explode if not properly used, handled, or disposed of. Do not: • Throw or immerse into water • Heat to more than 100°C (212°F) • Repair or disassemble Lenovo Legion Y720T Hardware Maintenance Manual...
- Page 15 Dispose of the battery as required by local ordinances or regulations. CAUTION: 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.
- Page 16 To remove all electrical current from the device, ensure that all power cords are disconnected from the power source. CAUTION: Do not place any object weighing more than 82 kg (180 lbs.) on top of rack- mounted devices. Lenovo Legion Y720T Hardware Maintenance Manual...
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Page 17: Chapter 3. General Information
Specifications This section lists the physical specifications for your computer. This section lists the physical specifications for your computer. Type Lenovo Legion Y720T This section lists the physical specifications. Environment Air temperature: Operating: 10° to 35°C Transit: -20°... - Page 18 Lenovo Legion Y720T Hardware Maintenance Manual...
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Page 19: Chapter 4. General Checkout
• If the computer displays a POST error, go to “POST error codes”. • If the computer hangs and no error is displayed, continue at step 7. 7. If the test stops and you cannot continue, replace the last device tested. © Copyright Lenovo 2017... - Page 20 Lenovo Legion Y720T Hardware Maintenance Manual...
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Page 21: Chapter 5. Using The Setup Utility
1. If your computer is already on when you start this procedure, shut down the operating system and turn off the computer. 2. Press and hold the F1 key then turn on the computer. When the Lenovo BIOS Setup Utility program is displayed, release the F1 key. - Page 22 (a-z, and 0-9). For more information, see “Password considerations” on page 13. 1. Start the Lenovo BIOS Setup Utility program (see “Starting the Lenovo BIOS Setup Utility program” on page 13). 2. From the Security menu, select Set Administrator Password and press the Enter key.
- Page 23 3. To delete an Administrator Password, Enter blank fields for each new password line item. A setup notice will display that changes have been saved. 4. Return to the Lenovo BIOS Setup Utility program menu and select the Exit option.
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Page 24: Enabling Or Disabling A Device
3. To delete the Power-On Password, Enter blank fields for each new password line item. A setup notice will display that changes have been saved. 4. Return to the Lenovo BIOS Setup Utility program menu and select the Exit option. -
Page 25: Selecting A Startup Device
Network Setup press the Enter key, then select Onboard Ethernet Support or Boot Agent. 4. Select Disabled or Enabled and press the Enter key. 5. Return to the Lenovo BIOS Setup Utility program menu and select the Exit option. 6. Select Save changes and Exit from the menu. -
Page 26: Exiting The Lenovo Bios Setup Utility Program
Use the <×> key to exclude the device from or include the device in the boot sequence. 5. Return to the Lenovo BIOS Setup Utility program menu and select the Exit option. 6. Select Save changes and Exit from the menu. - Page 27 When the Save & reset window shows, select the Yes button, and then press the Enter key to exit the Lenovo BIOS Setup Utility program. • If you do not want to save the settings, select Discard changes and Exit from the menu.
- Page 28 Lenovo Legion Y720T Hardware Maintenance Manual...
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Page 29: Chapter 6. Symptom-To-Fru Index
2. Use the operating system to format the hard disk drive. The drive is defective. Replace the hard disk drive. Power Supply Problems Follow these procedures if you suspect there is a power supply problem. © Copyright Lenovo 2017... -
Page 30: Additional Service Information
Each time you turn the computer on, it performs a series of tests to check that the system is operating correctly and that certain options are set. This series of tests is called the Power-On Self-Test, or POST. POST does the following: Lenovo Legion Y720T Hardware Maintenance Manual... -
Page 31: Undetermined Problems
• Checks some basic system-board operations • Checks that the memory is working correctly • Starts video operations • Verifies that the boot drive is working POST Error Message Description/Action Keyboard error Cannot initialize the keyboard. Make sure the keyboard is properly connected to the computer and that no keys are held pressed during POST. - Page 32 Lenovo Legion Y720T Hardware Maintenance Manual...
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Page 33: Chapter 7. Locations
Chapter 7. Locations This section provides illustrations to help locate the various connectors, controls and components of the computer. Identifying internal components The following illustration shows the components inside your computer. © Copyright Lenovo 2017... - Page 34 Description Self-service CRU Optional-service Chassis System fan (rear) Lenovo Legion Y720T Hardware Maintenance Manual...
- Page 35 Graphic card Power supply unit Dust filter Dust filter bracket Side cover (with Lenovo logo) Micro-processor fan assembly Motherboard CR2302 baterry Wi-Fi card Wi-Fi bracket Micro-process heat-sink fin Memory module Top cover Wi-Fi antenna Front I/O module Optical drive holder...
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Page 36: Identifying Parts On The System Board
It provides basic computer functions and supports a variety of devices that are factory-installed or that you can install later. The following illustrations show the locations of the different parts on the system board. Y720T Lenovo Legion Y720T Hardware Maintenance Manual... - Page 37 12V power connector Front USB 3.0 connector Microprocessor Aux fan 2 Microprocessor fan header 1 Front panel connector Microprocessor fan header 2 Front USB 2.0 connector Power fan header Memory slots (4) Front USB, card reader connector Front LED header LPC debug Power connector Mini PCI-E slot...
- Page 38 Lenovo Legion Y720T Hardware Maintenance Manual...
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Page 39: Chapter 8. Replacing Hardware
Before proceeding with the disassembly procedure, make sure that you do the following: 1. Turn off the power to the system and all peripherals. 2. Unplug all power and signal cables from the computer. 3. Place the system on a flat, stable surface. © Copyright Lenovo 2017... -
Page 40: Cleaning Rear Dust Screen
Us a brush gently brush through the dust screen to remove the dust. b. If cleaning the dust screen with clean water, make sure you dry the dust screen completely before put it back. Step 7. To install the rear dust screen: Lenovo Legion Y720T Hardware Maintenance Manual... -
Page 41: Replacing The Keyboard And Mouse
Line up the new dust screen with the chassis and push the screen into position. Replacing the keyboard and mouse Pseudo topic: DITA topic "file:/E:/HMM/Replacing%20the%20keyboard%20and %20mouse.dita" could not be parsed. Removing the computer cover Attention: • Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover. -
Page 42: Removing The Computer Cover Ii
Refer to “Locating connectors on the rear of the computer”. Step 4. Remove the 2 screws that secure the computer cover to the chassis. Step 5. Press the left side of the cover, then slide the computer cover out. Lenovo Legion Y720T Hardware Maintenance Manual... -
Page 43: Removing The Front Bezel
Step 6. Reinstall the computer cover ii: Align the cover with the guide track on the computer case, then slide the cover in. b. Press the left side the cover, then push it in till the cover locked properly. Secure the computer cover with two screws. Removing the front bezel Note: For this procedure, it helps to lay the computer flat. -
Page 44: Cleaning Front Dust Screen
Step 5. Remove the computer cover. Refer to “Removing computer cover”. Step 6. Remove the front bezel. Refer to “Removing the front bezel”. Step 7. Pull the out the front dust screen as shown. Lenovo Legion Y720T Hardware Maintenance Manual... -
Page 45: Replacing A Memory Module
Step 8. Cleaning tips: Us a brush gently brush through the dust screen to remove the dust. b. If cleaning the dust screen with clean water, make sure you dry the dust screen completely before put it back. Step 9. To install the front dust screen: Line up the new dust screen with the chassis and push the screen into position. -
Page 46: Replacing A Hard Disk Drive
Step 1. Remove the computer cover. Refer to “Removing the computer cover”. Step 2. Disconnect the data and power cables from the hard disk drive. Step 3. Pull the plastic handle and slide the hard disk drive out of the drive bay. Lenovo Legion Y720T Hardware Maintenance Manual... -
Page 47: Replacing An Optical Drive
Release the hard disk drive from the bracket as shown. Step 4. Line up the new hard disk drive with the plastic bracket and snap it into position. Step 5. Slide the new hard disk drive into the drive bay and slide the drive bay into place. -
Page 48: Replacing The Microprocessor Fan Assembly
Step 5. Disconnect the fan power cable from the connector on the motherboard. Step 6. Remove the 4 screws that secure the microprocessor fan to the heat-sink and lift up the microprocessor fan to remove it. Lenovo Legion Y720T Hardware Maintenance Manual... -
Page 49: Replacing The Rear System Fan
Step 7. To install the new microprocessor fan assembly: Line up the new microprocessor fan assembly with the heat-sink and secure it to the heat-sink with 4 screws. b. Connect the microprocessor fan power cable to the connector on the board. -
Page 50: Replacing A Front Fan
Connect the system fan power cable to the connector on the board. Step 8. Reattach the computer cover. Replacing a front fan To replace a front fan: Lenovo Legion Y720T Hardware Maintenance Manual... - Page 51 Step 1. Remove any media (disks, CDs, DVDs, or memory cards) from the drives, shut down the operating system, and turn off the computer and all attached devices. Step 2. Unplug all power cords from electrical outlets. Step 3. Disconnect all cables attached to the computer. This includes power cords, input/output (I/O) cables, and any other cables that are connected to the computer.
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Page 52: Replacing The Power Supply
(I/O) cables, and any other cables that are connected to the computer. Refer to “Left and right view” and “Rear view” for help with locating the various connectors. Step 4. Remove the computer cover. Refer to “Removing the computer cover”. Lenovo Legion Y720T Hardware Maintenance Manual... -
Page 53: Replacing The Wi-Fi Card
Step 5. Disconnect the power cables from the connectors on motherboard. Step 6. Remove the 4 screws that secure the Power supply to the chassis. Step 7. Slide then lift the Power supply out of chassis. Step 8. Install the new power supply： Line up the holes on the new power supply with mounting holes on the rear of the chassis and secure it to the chassis with the 4 screws. -
Page 54: Removing The Top Cover
(I/O) cables, and any other cables that are connected to the computer. Refer to “Locating connectors on the rear of the computer”. Step 4. Remove the computer cover. Refer to “Removing the computer cover”. Lenovo Legion Y720T Hardware Maintenance Manual... - Page 55 Step 5. Put the computer up side down, locate the top cover locking fin as shown. Use a flat head screw drivers to pry up the locking fin to release the top cover. Step 6. Slide the top cover outward to remove the top cover as shown. Chapter 8.
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Page 56: Replacing A Graphics Card
Press down the locking fin to secure the top cover. Step 8. Reattach the computer cover. Replacing a graphics card Note: For this procedure, it helps to lay the computer on a flat, stable surface. To replace a graphics card: Lenovo Legion Y720T Hardware Maintenance Manual... -
Page 57: Replacing The Cpu
Step 1. Remove the computer cover. Refer to “Removing the computer cover”. Step 2. Push the graphic card lock as shown to unlock the graphic. Step 3. Disconnect the power cables from the graphics card. Step 4. Turn the locking pin counterclockwise 90°, then slowly take it out. Step 5. - Page 58 Step 6. Remove the CPU fan assembly. Refer to “Replacing the CPU fan assembly”. Step 7. To remove the microprocessor from the system board, press then slide the small handle out to spring it up. and open the retainer. Lenovo Legion Y720T Hardware Maintenance Manual...
- Page 59 Attention: Do not touch the gold contacts on the bottom of the microprocessor. When handing the microprocessor, touch only the sides. Note: Do not drop anything onto the microprocessor socket while it is exposed. The socket pins must be kept as clean as possible. Step 8.
- Page 60 Important: To avoid damaging the microprocessor contacts, keep the microprocessor completely level while installing it into the socket. Step 10. Lower the microprocessor straight down into its socket on the motherboard. Lenovo Legion Y720T Hardware Maintenance Manual...
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Page 61: Replacing The Motherboard
Step 11. To secure the microprocessor in the socket, close the microprocessor retainer and lock it into position with the small handle. Step 12. Use a thermal grease syringe to place 5 drops of grease on the top of the microprocessor. -
Page 62: Fru Lists
This chapter lists the information on the field replaceable units (FRUs). Attention: Be sure to read and understand all the safety information before replacing any FRUs. Lenovo Legion Y720T-34ASU Service Parts Listing MT: 90H9 Lenovo Legion Y720T Hardware Maintenance Manual... - Page 63 Description FruP/N BDPLANAR AMD Summit Ridge B350 WIN DPK 00XK277 CABLE Fru,500mm LED cable 04X2776 00XL138 Fru457mm SATA cable 2 latch Fru460mmSATAcable R_angle 00XL137 Fru,Gaming PCantenna cable_Black 04X2777 Fru,Gaming PCantenna cable_Gray 04X2778 DT_KYB USB Calliope KB BK NORDIC 00XH633 USB Calliope KB BK SWS 00XH621 USB Calliope KB BK HBW 00XH604...
- Page 64 AMD SuR 95W CPU Cooler LINECORD Fru, LINECORD,AR,1.8M,3P,NON-LH 00XL037 Fru, LINECORD,TH,1.8M,3P,NON-LH 00XL050 Fru, JP,Anti-TR,1.8M,3P,NON-LH 00XL000 Fru, LINECORD,IT,1.8M,3P,NON-LH 00XL047 Fru, LINECORD,GB,1.8M,3P,NON-LH 00XL023 Fru, LINECORD,CH,1.8M,3P,NON-LH 00XL031 Fru, LINECORD,CH,1.8M,3P,NON-LH 00XL029 Fru, LINECORD,IL,1.8M,3P,NON-LH 00XL027 Fru, LINECORD,GB,1.8M,3P,NON-LH 00XL024 Fru, US/CA,1.8M,3P,NON-LH 00XL005 Lenovo Legion Y720T Hardware Maintenance Manual...
- Page 65 Fru, LINECORD,GB,1.8M,3P,NON-LH 00XL025 Fru, EU/KR,1.8M,3P,NON-LH 00XL014 Fru, LINECORD,IL,1.8M,3P,NON-LH 00XL026 Fru, LINECORD,IN,1.8M,3P,NON-LH 00XL022 Fru, LINECORD,AU,1.8M,3P,NON-LH 00XL043 Fru, LINECORD,AU,1.8M,3P,NON-LH 00XL041 Fru, LINECORD,DK,1.8M,3P,NON-LH 00XL046 Fru, LINECORD,IT,1.8M,3P,NON-LH 00XL049 Fru, LINECORD,BR,1.8M,3P,NON-LH 00XL032 Fru, LINECORD,AR,1.8M,3P,NON-LH 00XL035 Fru, LINECORD,CH,1.8M,3P,NON-LH 00XL030 Fru, LINECORD,TW,1.8M,3P,NON-LH 00XL019 Fru, US/CA,1.8M,3P,NON-LH 00XL006 Fru, LINECORD,ZA,1.8M,3P,NON-LH 00XL038 Fru, JP,Anti-TR,1.8M,3P,NON-LH 00XL001...
- Page 66 01AG805 8GB DDR4 2400UDIMM 8GB DDR4 2666 UDIMM,MICRON 01AG815 MOUSE USB Calliope Mouse Black(Orange wh 00PH131 OPT_DRIVE SMD,DT,SATA,H/H,x16 71Y5545 PWR_SUPPLY PWR_SUPPLY,100-240Vac,450W 54Y8930 AMD Ryzen 7 1800X 3.6G/8C 01AG127 AMD Ryzen 5 1300 3.2G/4C/8M/AM4/65W 01AG138 Lenovo Legion Y720T Hardware Maintenance Manual...
- Page 67 SSD_ASM 128G,M.2,2280,PCIe3x4,SAMSG,STD 00UP448 256G,M.2,2280,PCIe3x4,SAM,OPAL 00UP436 256G,M.2,2280,PCIe3x4,TOS,OPAL 00UP641 VIDEO_CARD 01AJ836 AMD@RX480@8G D5 H+3DP 01AJ876 MSI@RX570@4G/D5/3-DP/HDMI/HP WIRELESS Wireless,CMB,LTN,NFA344A M2 01AX713 Wireless,CMB,LTN,NFA344A FCC 01AX726 Chapter 8. Replacing hardware...
- Page 68 Lenovo Legion Y720T Hardware Maintenance Manual...
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Page 69: Chapter 9. General Information
• Wake Up on Alarm: You can specify a date and time at which the computer will be turned on automatically. This can be either a single event , a daily event or a weekly event. • Wake Up on LAN: This feature allows LAN adapter card to wake the System. © Copyright Lenovo 2017... - Page 70 Lenovo Legion Y720T Hardware Maintenance Manual...