Lenovo 4177QKU Support Question
Lenovo 4177QKU Support Question
Find answers below for this question about Lenovo 4177QKU.Need a Lenovo 4177QKU manual? We have 2 online manuals for this item!
Question posted by jgscott on August 27th, 2015
System Board Replacement Fru
Have a Lenovo ThinkPad T420 (4177QKU) that has a bad system board. I would like to know the proper replacement part number (FRU) for this systemboard.
Current Answers
Answer #1: Posted by TechSupport101 on August 28th, 2015 1:09 AM
TechSupport101
Member since:
May 24th, 2013 Points: 12,171,285
Member since:
May 24th, 2013 Points: 12,171,285
The table here https://support.lenovo.com/us/en/documents/migr-76686 sadly does not mention 'Qku'. I therefor suggest you contact Lenovo directly from here https://support.lenovo.com/us/en/contactus for further help.
Related Lenovo 4177QKU Manual Pages
Brochure - Page 1
... used. Data from 42 competitor products of mobility, manageability and security • Milspec tested for . THINKPAD T420/T520 NOTEBOOKS
THE NEW LENOVO® THINKPAD® T420 AND T520 NOTEBOOKS
WITH ENHANCED FEATURES FOR BETTER, ROUND-THE-CLOCK PERFORMANCE
The ThinkPad T420 and T520 notebooks offer the best combination of fice or building to start -up, shutdown...
Brochure - Page 2
... power on
and authentication • Trusted Platform Module (TPM) and
Lenovo Hardware Password Manager • USB port enable or disable lock down settings in system BIOS • Enterprise services to assist securing data and prevent loss
COMPUTING IN COMFORT
The ThinkPad T420 and T520 are equipped with features optimized for unexpected damage, unintentional...
Brochure - Page 3
THINKPAD T420/T520 NOTEBOOKS
The Lenovo® ThinkPad® T420 and T520 Notebook Specifications
DESCRIPTION
Processors
Preloaded OS (Operating System)
Chipset Display
Memory Weight Form Factor I/O (Input/Output) Ports and Slots
Optical Drive Multimedia Graphics Internal PCIe Slots WiMAX/WiFi WLAN LAN WWAN Modules HDD SSD Battery Life3 Warranty Price
T420
T520
Intel® Core...
Brochure - Page 4
...174; recommends Windows® 7 Professional. THINKPAD T420/T520 NOTEBOOKS
The Lenovo® ThinkPad® T420 and T520 Software
READY TO INSTALL
• ThinkVantage® Rescue & Recovery® 4.3 • ThinkVantage Password Manager 4.0 • ThinkVantage Access Connections™ • ThinkVantage SimpleTap 2.0 • ...
User Manual - Page 3
... power-on the underside of the system unit 60 Retaining the UUID 60 Reading or writing the ECA information . . . 61
Chapter 8. Removing and replacing a FRU 63
Before servicing ThinkPad T420 and T420i . . . 64 1010 Battery pack 65 1020 ExpressCard blank bezel 66 1030 Serial Ultrabay Enhanced device or travel bezel 67 1040 Hard disk...
User Manual - Page 4
... assembly 117 2020 LED board 118 2030 Integrated camera 120 2040 LCD panel and LCD cable 122 2050 Camera cable 124 2060 Wireless LAN antenna assembly or wireless LAN/WAN antenna assembly 125 2070 Hinges and LCD rear cover assembly . . . 127
Chapter 9. Notices 179
Trademarks 180
ii ThinkPad T420 and T420i Hardware Maintenance...
User Manual - Page 12
...from electrical outlets, remove the battery pack, and disconnect any interconnecting cables.
6 ThinkPad T420 and T420i Hardware Maintenance Manual DANGER Unless hot swap is allowed for at least 15... into your eyes or on your hands, immediately wash the affected areas with water for the FRU being replaced, do not remove the plastic cover that protects the lower part of the inverter card. DANGER...
User Manual - Page 30
... computer you are servicing.
24 ThinkPad T420 and T420i Hardware Maintenance Manual Be sure that those components, and may also cause false error codes. Attention: When handling a system board: • Do not drop a system board or apply any excessive force to those settings remain in the Symptom-to-FRU Index for replacing a hard disk drive
Always...
User Manual - Page 32
...ThinkPad T420 and T420i Hardware Maintenance Manual After that
click Parts lookup. Type in the eSupport record under Quick path. The key commodities will be returned in the model type and serial number. Under "Parts Information by Document Type" select Parts information. hard disk drive, system board... type model and FRU will be displayed....lenovo.com/support • To view the...
User Manual - Page 34
... that have been subjected to excessive force,
or dropped.
28 ThinkPad T420 and T420i Hardware Maintenance Manual Before checking problems with multiple labels...• Use of an incorrect ac power adapter on laptop products
The following symptoms might indicate damage caused by pressure...Machine type, model number, and serial number 9. What to do first
When you do return a FRU, you must include...
User Manual - Page 42
...If the resistance is correct, replace the system board. If the charge indicator or icon still does not turn on , replace the battery pack.
To check ... See the following : 1. See the following : 1. Checking the backup battery
Do the following figure.
36 ThinkPad T420 and T420i Hardware Maintenance Manual Turn the computer upside down , reinstall and recharge it at least 3 hours, ...
User Manual - Page 52
... Number are invalid. 2201 Machine UUID is attached to the ThinkPad Notebook.
2. System board.
1. System board.
1. Reseat the Mini SATA device. 2. System board.
46 ThinkPad T420 and T420i Hardware Maintenance Manual Power off and remove the miniPCI network card. 1820 More than 8 hours by pressing F10.
2. System board.
1. Undock docking station or port replicator if it is invalid
FRU...
User Manual - Page 54
... short beeps and a blank screen.
FRU or action, in sequence
1. System board. LCD assembly. 3. DIMM. Two or more short beeps, and one short beep.
1. The power-on page 45. POST error. Four cycles of four short beeps and a blank screen. Type the password and press Enter.
48 ThinkPad T420 and T420i Hardware Maintenance Manual...
User Manual - Page 56
..., replace the FRU shown by the computer. Verify that the power supply being used at a time until you find the failing FRU. 7. Visually check each FRU for the system board in the internal drive i. Non-ThinkPad devices... the removed devices one at least 10 times. 2. LCD assembly
50 ThinkPad T420 and T420i Hardware Maintenance Manual Rerun the test to verify that no error is not operating,...
User Manual - Page 66
... system and all major components.
After you must restore the serial number of your system board. Before replacing the system board, save the original serial number by doing the following :
1. Select 2.
The algorithm that number.
If you replace the system board, you have the same number.
60 ThinkPad T420 and T420i Hardware Maintenance Manual Add S/N data from EEPROM...
User Manual - Page 67
...number from EEPROM, and follow the instruction on the LENOVO ThinkPad Hardware Maintenance Diskette Version 1.76 or later.
1. From the main menu, select 6. Chapter 7. FRU replacement notices 61 Install the LENOVO ThinkPad... must set the UUID on the new system board as the machine type of the system board. Insert the LENOVO ThinkPad Hardware Maintenance Diskette Version 1.76 or later, and...
User Manual - Page 116
...both to the base cover The new base cover FRU is shipped with a kit containing labels of several ... Applying labels to the new base cover.
110 ThinkPad T420 and T420i Hardware Maintenance Manual When you replace the base cover, you need to apply the ...)
15
Vodafone label
16
FCC label
18
Asset tag
19
Serial number label
20
Product label
21
China wireless WAN label
22
China modem...
User Manual - Page 120
... computer on a bench top that HDD Active Protection System is running. Removal steps of system board and ExpressCard slot assembly The following in a reject report, and replace the system board. • Avoid rough handling of rough handling.
114 ThinkPad T420 and T420i Hardware Maintenance Manual Attention: Do not apply physical shock to make sure that...
User Manual - Page 152
...8226; 4180-CTO, MCx • 4236-CTO
14 System board assembly, integrated graphics, non-AMT, TPM, AES •...board assembly, integrated graphics, non-AMT, non-TPM, non-AES • 4177-CTO, 2Fx, 2Gx • 4178-CTO, 9Vx, 9Wx, 9Yx • 4179-CTO • 4180-CTO • 4236-CTO
FRU no. 45N8007 45N7981 45N8027 60Y3207 04W1345
04W1346 04W1466
04W1468
CRU ID ** ** ** N N
N N
N
146 ThinkPad T420...
User Manual - Page 174
...8226; Blind sheet for ODD 2
FRU no. 04W1603
04W1604 04W1601
CRU ID N
N
N
168 ThinkPad T420 and T420i Hardware Maintenance Manual touchpad • ThinkPad logo • Bracket - right speaker...; Bracket - FPR • Insulation sheet - DDR • Insulation sheet -
System board miscellaneous parts: • Insulation sheet - express card • SIM guide bracket sub assy...
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