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Summary of Contents for Lenovo Legion Y720T
- Page 1 Lenovo Legion Y720T Hardware Maintenance Manual Machine Types: 90H5 [Lenovo Legion Y720T-34IKH/Energy Star]/ 90H6 [Lenovo Legion Y720T-34IKH/Non-Energy Star]...
- Page 3 Lenovo Legion Y720T Hardware Maintenance Manual Machine Types: 90H5 [Lenovo Legion Y720T-34IKH/Energy Star]/ 90H6 [Lenovo Legion Y720T-34IKH/Non-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-...
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Page 5: Table Of Contents
Replacing the microprocessor fan assembly . . . Starting the Lenovo BIOS Setup Utility program . . Replacing the rear system fan ..Viewing and changing settings .. - Page 6 Lenovo Legion Y720T Hardware Maintenance Manual...
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Page 7: Chapter 1. About This Manual
This manual contains service and reference information for Lenovo Legion Y720T desktop computers listed on the cover. It is intended only for trained servicers who are familiar with Lenovo computer products. Before servicing a Lenovo product, be sure to read the Safety Information. - Page 8 Lenovo Legion Y720T Hardware Maintenance Manual...
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Page 9: Chapter 2. Safety Information
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. © Copyright Lenovo 2017... - Page 10 – 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. Lenovo Legion Y720T Hardware Maintenance Manual...
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Page 11: Safety Inspection Guide
– Send another person to get medical aid. Safety inspection guide The intent of this inspection guide is to assist you in identifying potentially unsafe conditions on these products. Each machine, as it was designed and built, had required safety items installed to protect users and service personnel from injury. -
Page 12: Grounding Requirements
• Connect and disconnect cables as described in the following table when installing, moving, or opening covers on this product or attached devices. Lenovo Legion Y720T Hardware Maintenance Manual... - Page 13 To Connect To Disconnect 1. Turn everything OFF. 1. Turn everything OFF. 2. First, attach all cables to devices. 2. First, remove power cords from outlet. 3. Attach signal cables to connectors. 3. Remove signal cables from connectors. 4. Attach power cords to outlet. 4.
- Page 14 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 15: Chapter 3. General Information
This chapter provides general information that applies to all machine types supported by this publication. 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°... - Page 16 Lenovo Legion Y720T Hardware Maintenance Manual...
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Page 17: 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 18 Lenovo Legion Y720T Hardware Maintenance Manual...
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Page 19: 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 20 5. Select Save changes and Exit from the menu. Power-On Password When a Power-On Password is set, you cannot start the Lenovo BIOS Setup Utility program until a valid password is typed from the keyboard. Setting, changing, or deleting a Power-On Password...
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Page 21: Enabling Or Disabling A Device
Note: A password can be any combination of letters and numbers up to 16 character (a-z, and 0-9). To set a Power-On Password, do the following: 1. Start the Lenovo BIOS Setup Utility program (See ”Starting the Lenovo BIOS Setup Utility program” on page 13.) 2. -
Page 22: Selecting A Startup Device
Selecting or changing the startup device sequence To view or permanently change the configured startup device sequence, do the following: 1. Start the Lenovo BIOS Setup Utility program (see “Starting the Lenovo BIOS Setup Utility program” on page 13). 2. From the Lenovo BIOS Setup Utility program main menu, select the Startup option. -
Page 23: Exiting The Lenovo Bios Setup Utility Program
Exiting the Lenovo BIOS Setup Utility program After you finish viewing or changing settings, press the Esc key to return to the Lenovo BIOS Setup Utility program main menu. You might have to press the Esc key several times. Do one of the following: •... - Page 24 Lenovo Legion Y720T Hardware Maintenance Manual...
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Page 25: Chapter 6. Symptom-To-Fru Index
Reseat connectors Check that the following are properly installed: • Power Cord • On/Off Switch connector • System Board Power Supply connectors • Microprocessor(s) connection Check the power cord. Power Cord Check the power-on switch. Power-on Switch © Copyright Lenovo 2017... -
Page 26: Additional Service Information
Make sure you have bootable media in the boot device. Undetermined problems 1. Power-off the computer. 2. Remove or disconnect the following components (if connected or installed) one at a time. a. External devices (modem, printer, or mouse) Lenovo Legion Y720T Hardware Maintenance Manual... - Page 27 b. Extended video memory c. External Cache d. External Cache RAM e. Hard disk drive f. Disk drive 3. Power-on the computer to re-test the system. 4. Repeat steps 1 through 3 until you find the failing device or component. If all devices and components have been removed and the problem continues, replace the system board.
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Page 29: 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. Description Self-service CRU Optional-service CRU Chassis System fan (rear) Graphic card © Copyright Lenovo 2017... -
Page 30: 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. Lenovo Legion Y720T Hardware Maintenance Manual... - Page 31 Y720T 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...
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Page 33: 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 34: Cleaning Rear Dust Screen
Pseudo topic: DITA topic "file:/E:/Y720T-Intel/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. Lenovo Legion Y720T Hardware Maintenance Manual... -
Page 35: Removing The Computer Cover Ii
• For this procedure, it helps to lay the computer on a flat, stable surface. To remove the computer cover: Step 1. Remove any media (disks, CDs, or memory cards) from the drives, shut down the computer, and turn off all attached devices. Step 2. -
Page 36: Removing The Front Bezel
Step 1. Remove the computer cover. Refer to “Removing the computer cover”. Step 2. Remove the front bezel by releasing the three plastic tabs inside the chassis and pulling the bezel out as shown. Lenovo Legion Y720T Hardware Maintenance Manual... -
Page 37: Cleaning Front Dust Screen
Step 3. To reattach the bezel, align the plastic tabs on the bottom of the bezel with the corresponding holes in the chassis, and then snap it into position. Cleaning front dust screen To replace the system fan: 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. -
Page 38: Replacing A Hard Disk Drive
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. Release the hard disk drive from the bracket as shown. Lenovo Legion Y720T Hardware Maintenance Manual... -
Page 39: Replacing An Optical Drive
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. Step 6. Connect the power and signal cables to the new hard disk drive. Step 7. -
Page 40: Replacing The Microprocessor Fan Assembly
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 41: 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. Connect the microprocessor fan power cable to the connector on the board. Step 8. -
Page 42: Replacing A Front Fan
Disconnect the fan from the connector on the motherboard. Step 8. The front fan and the bracket are mounted to the chassis with two pins. Press down the two pins as illustrated, then slide out the front fan and the bracket slowly. Lenovo Legion Y720T Hardware Maintenance Manual... -
Page 43: Replacing The Power Supply
Step 9. The front fan is pined to the brackets, push the pins outward to release the fan from the bracket then lift up the fan to remove it. Step 10. To install a new fan: Place the new fan with into the bracket, then secure the fan with the two locking pins. Align the two locking pins at the bottom of the bracket with mounting holes on the chassis, then snap the fan and bracket into position. -
Page 44: Replacing The Wi-Fi Card
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 45: Removing The Top Cover
Step 5. Disconnect the 2 antenna cables from the Wi-Fi card. Step 6. Remove the 2 screws that secure the Wi-Fi card to the motherboard. Step 7. Pull the Wi-Fi card upward to remove it from the card port. Step 8. Install the new Wi-Fi card: Line up the new Wi-Fi card, then insert it into the same card port. - Page 46 Step 6. Slide the top cover outward to remove the top cover as shown. Step 7. Reinstall the computer cover: Lenovo Legion Y720T Hardware Maintenance Manual...
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Page 47: Replacing A Graphics Card
Align the cover with the guide track on the computer case, then slide the cover in. Push the cover till it’s locking position. 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. -
Page 48: Replacing The Cpu
Attention: Do not touch the gold contacts on the bottom of the microprocessor. When handing the microprocessor, touch only the sides. Lenovo Legion Y720T Hardware Maintenance Manual... - Page 49 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. Holding the sides of the microprocessor with your fingers, remove the protective cover that protects the gold contacts on the new microprocessor. Step 9.
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Page 50: Replacing The Motherboard
Line up the holes on the new motherboard with mounting holes on the chassis and secure it with screws. Reattach the memory module, Wi-Fi card, CPU, and the heat-sink to the new motherboard. Connect the all cables to the new motherboard. Attach the graphic card to the new motherboard. Lenovo Legion Y720T Hardware Maintenance Manual... -
Page 51: Fru Lists
Step 15. Reattach the computer cover. 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-34IKH Service Parts Listing MT: 90H5 90H6 Description FruP/N... - Page 52 HDD_ASM HDD,1TB,7200,DT3,SATA3,STD 45K0623 HDD,2TB,7200,DT3,SATA3,STD 00PC552 HDD,1TB,7200,DT3,SATA3,STD 00PC551 HEATSINK Intel 130W CPU Liquid Cooler 01MN027 FRU,I LGA115X 65/95W for TW 00KT106 Intel 115X CPU cooler backplate 01MN029 01MN023 Onboard M.2 SSD Heatsink Cooler Kit,AVC 01EF299 Lenovo Legion Y720T Hardware Maintenance Manual...
- Page 53 01MN022 M.2 SSD Push Pin Heatsink LINECORD Fru, LINECORD,AR,1.8M,3P,NON-LH 00XL037 Fru, JP,Anti-TR,1.8M,3P,NON-LH 00XL000 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, EU/KR,1.8M,3P,NON-LH 00XL014 Fru, LINECORD,AU,1.8M,3P,NON-LH 00XL043 Fru, LINECORD,IT,1.8M,3P,NON-LH 00XL049 Fru, JP,Anti-TR,1.8M,3P,NON-LH 00XL001 Fru, LINECORD,DK,1.8M,3P,NON-LH 00XL044 Fru, LINECORD,ZA,1.8M,3P,NON-LH 00XL039 Fru, LINECORD,BR,1.8M,3P,NON-LH 00XL034 Fru, LINECORD,IT,1.8M,3P,NON-LH...
- Page 54 34L,Front Fan Bkt,Destiny 00XD540 34L,R cover ,Y900 00XD544 MECHANICAL 00XD414 Y900 GTX980/970 GFX bracket 00XD415 Y700 GTX980/970 GFX bracket MEMORY 01AG805 8GB DDR4 2400UDIMM 01AG806 16GB DDR4 2400UDIMM MOUSE Primax M800 USB gaming MC black 00PC712 Lenovo Legion Y720T Hardware Maintenance Manual...
- Page 55 USB Calliope Mouse Black(Orange wh 00PH131 OPT_DRIVE SMD,DT,SATA,H/H,x16 71Y5545 PWR_SUPPLY 100-240Vac,game 625W PSU 54Y8982 PWR_SUPPLY,100-240Vac,450W 54Y8930 100-240Vac,TOWER 280W PSU 54Y8957 01AG094 Intel Core i7-7700K 4.2GHZ/4C/8M/2400 01AG102 Intel Core i5-7400 3.0G 4C 01AG095 Intel Core i5-7600K 3.8GHZ/4C/6M/2400 01AG096 Intel Core i7-7700 3.6G 4C FRU 16GB M.2 Optane Memory 00UP455 SSD_ASM...
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Page 57: 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...