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Emergency-reset hole
If the computer stops responding and you cannot turn it off by pressing the power button, reset your
computer:
1. Disconnect your computer from ac power.
2. Insert a straightened paper clip into the hole to cut off power supply temporarily.
3. Connect your computer to ac power and then turn on your computer.
CAUTION:
When the computer is operating, it should be placed on a hard and flat surface with its bottom area
not in contact with user's bare skin. Under normal operating conditions, the temperature of the
bottom surface will remain within an acceptable range as defined in IEC 62368-1, but such
temperatures can still be high enough to cause discomfort or harm to the user if directly touched for
over one minute at a time. As such, it is recommended that users avoid prolonged direct contact with
the bottom of the computer.
Locating FRUs and CRUs
This topic introduces the following service parts:
• "Major FRUs" on page 48
• "Miscellaneous parts and other FRUs" on page 50
Notes:
• CRU statement for customers:
You can resolve some problems with your product with a replacement part you can install yourself, called
a "Customer Replaceable Unit" or "CRU." Some CRUs are designated as self-service CRUs and others
are designated as optional-service CRUs. Installation of self-service CRUs is your responsibility. For
optional-service CRUs, you can either install the CRU yourself or you can request that a Service Provider
install the CRU according to the warranty service for your product. If you intend on installing the CRU,
Lenovo will ship the CRU to you. CRU information and replacement instructions are shipped with your
product and are available from Lenovo at any time upon request. You can find a list of CRUs for your
product in this Hardware Maintenance Manual. An electronic version of this manual can be found at
https://support.lenovo.com
manual for your product. You might be required to return the defective part that is replaced by the CRU.
When return is required: (1) return instructions, a prepaid shipping label, and a container will be included
46
P1 Gen 5 / X1 Extreme Gen 5 Hardware Maintenance Manual
. Click Documentation and then follow the on-screen instructions to find the
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