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Contents
Chapter 1. Product overview . . . . . . 1
Front view . . . . . . . . . . . . . . . . . . 1
Rear view . . . . . . . . . . . . . . . . . . 2
System board . . . . . . . . . . . . . . . . 3
Machine type and model label . . . . . . . . . . 4
This chapter provides basic information to help you get familiar with your computer.
Front view
Note: Your computer model might look slightly different from the illustration.
1 Power indicator2 Power button
3 Storage drive activity indicator
5 Headset connector
7 Always On USB 3.0 connector
4 Microphone connector
6 USB 3.0 connector
8 Illuminated red dot
• Always On USB 3.0 connector
Used to connect a device that requires a USB 2.0 or USB 3.0 connection, such as a keyboard, a mouse, a
scanner, a printer, or a personal digital assistant (PDA). With the power adapter connected, you can
charge the automatically detected device even when the computer is in hibernation mode or turned off.
• Headset connector
Used to connect a headset or headphones to your computer.
• Illuminated red dot
This indicator is on when the computer is powered on.
• Microphone connector
Used to connect a microphone to your computer. You can use the microphone to record sounds or
interact with the computer using speech-recognition software.
Used to turn on your computer. When you cannot shut down the computer from the operating system,
press and hold the power button for four or more seconds to turn off the computer.
• Power indicator
This indicator is on when the computer is on.
• Storage drive activity indicator
This indicator is on when the storage drive is in use.
• USB 3.0 connector
Used to connect a USB-compatible device, such as a USB keyboard, mouse, scanner, printer, or personal
digital assistant (PDA). For optimal data transfer, connect a USB 3.0 device to a USB 3.0 connector
instead of a USB 2.0 connector.
Rear view
Note: Your computer model might look slightly different from the illustration.
Figure 1. Rear view
9 Mini DisplayPort
11 Wi-Fi antenna slot12 Ethernet connector
13 USB 3.0 connectors (2)14 USB 3.0 connector
15 DisplayPort connector
17 DisplayPort connector18 Power adapter connector
®
connectors (4) (optional)10 Security-lock slot
16 USB 3.0 connector
• DisplayPort connector
Used to send or receive audio and video signals. You can attach a compatible audio or video device to
this connector, such as a high-performance monitor.
• Ethernet connector
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P320 Tiny Customer Replaceable Unit Guide
Used to connect an Ethernet cable for network access.
• Mini DisplayPort connector
Used to send or receive audio and video signals. You can attach a compatible audio or video device to
this connector, such as a high-performance monitor. Depending on the computer model, the connector
might vary.
• Power adapter connector
Used to connect the power adapter to your computer for power supply.
• Security-lock slot
Used to secure a Kensington-style cable lock.
• USB 3.0 connector
Used to connect a device that requires a USB 2.0 or USB 3.0 connection.
• Wi-Fi antenna slot
Used to install the rear Wi-Fi antenna cable connector that is available only on some models. The rear WiFi antenna is installed on the rear Wi-Fi antenna cable connector.
System board
Note: See “Front view” on page 1 or “Rear view” on page 2 for additional component descriptions.
Figure 2. Parts on the system board
1 Serial connector 12 Serial connector 2
3 USB 3.0 connector4 Storage drive fan connector
5 Microprocessor socket
7 Illuminated red dot connector8 Internal speaker connector
The machine type and model label identifies your computer. When you contact Lenovo for help, the machine
type and model information helps support technicians to identify your computer and provide faster service.
The machine type and model label is attached on the side of your computer as shown.
Figure 3. Machine type and model label
4P320 Tiny Customer Replaceable Unit Guide
Chapter 2.I/O box
Overview
Note: Depending on your computer model, the I/O box might be optional.
Figure 4. I/O box overview
1 USB 2.0 connectors (2)2 Serial connector (optional)
3 USB 2.0 connectors (2)4 USB 3.0 connectors (2)
5 USB 3.0 connector (for connecting to the computer)
Using the I/O box
When you use the I/O box with the ThinkStation® tiny computer, note the following:
• The I/O box supports a maximum current rating of 5 A. It is recommended that you connect low-current
devices to the I/O box and connect high-current devices directly to the ThinkStation tiny computer to
ensure the best performance of the devices.
• The USB 2.0 connectors and USB 3.0 connectors on the I/O box provide a current of 500 mA and 900 mA
current, respectively. When you connect a high-current storage drive to only one USB connector, the
system might not recognize the device. You can connect the storage drive to two USB connectors on the
I/O box.
• The serial connector does not support hot swapping. Do not connect a device to the connector or remove
a device from the connector while the system is running.
• The connectors on the I/O box cannot be enabled or disabled individually. To enable or disable any of the
connectors on the I/O box, enable or disable the USB connectors on the rear of the computer.
• The I/O box enables you to wake up the computer from standby mode through operations on devices
connected to the I/O box connectors.
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P320 Tiny Customer Replaceable Unit Guide
Chapter 3.Connecting to other devices
Attaching a Kensington-style cable lock
You can use a Kensington-style cable lock to secure your computer to a desk, table, or other non-permanent
fixture. The cable lock connects to the security-lock slot at the rear of your computer. Depending on the type
selected, the cable lock can be operated with a key or combination. The cable lock also locks the buttons
used to open the computer cover. This is the same type of lock used with many notebook computers. You
can order such a cable lock directly from Lenovo by searching for Kensington at:
https://support.lenovo.com
Figure 5. Kensington-style cable lock
Connecting to a Tiny-In-One monitor
Note: When installing the P320 Tiny computer to the Tiny-In-One (TIO) monitor, ensure that you use the
135W ac power adapter that comes with the computer.
The P320 Tiny computer works with its integrated graphics card by default when it is installed to the TIO
monitor. You can turn on or turn off the computer by pressing the power button on the TIO monitor. Any
other devices connected to TIO monitor function the same as they are connected to the computer.
To switch the primary video display output from the integrated graphics card to the discrete graphics card,
do the following:
1. Turn on or restart your computer.
2. Before Windows starts up, repeatedly press and release F1 or Fn+F1 (depending on the keyboard
settings) until the Setup Utility program opens. If a BIOS password has been set, enter the correct
password when prompted.
3. Locate the Select Active Video submenu and select PEG. Then press F10 to save changes and exit.
4. Connect the discrete-graphic-card connector on the computer with the DisplayPort or HDMI connector
of the TIO monitor using an applicable dongle.
5. Press the mode-switching button on the TIO monitor to change from the TIO mode to the DP mode or
HDMI mode.
When the computer works with the discrete graphics card, pressing the power button on the TIO monitor
only turns on or turns off the TIO monitor. Devices connected to the TIO monitor do not function the same as
they are connected to the computer.
Supported TIO monitor models:
• Tiny-in-One 23 (MT: 10DQ)
• Tiny-in-One 22 (MT: 10LK)
• Tiny-in-One 24 (MT: 10LL)
• TIO22Gen3 (MT: 10R1)
• TIO22Gen3Touch (MT: 10R0)
• TIO24Gen3 (MT: 10QY)
• TIO24Gen3Touch (MT: 10QX)
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P320 Tiny Customer Replaceable Unit Guide
Chapter 4.Features
Power supply
• 135 watt automatic voltage-sensing power supply
Storage drives
• Up to three storage drives
Note: If your computer comes with a discrete graphics card, the computer can support up to two storage
drives only.
Video features
The integrated graphics card supports the following:
• DisplayPort connectors
The optional discrete graphics card supports the following and provides enhanced display capability and
experience:
• Maximum configuration as shipped: 1.3 kg (2.9 lb)
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P320 Tiny Customer Replaceable Unit Guide
Chapter 5.Replacing hardware
This chapter provides instructions on how to replace hardware for your computer.
Before replacing hardware
Attention: Do not open your computer or attempt any repairs before reading the Important Product Information
Guide.
Read these notes before replacing hardware:
• Some of the hardware components explained in this manual are optional.
• Use computer components provided only by Lenovo.
• When installing or replacing an option, use the appropriate instructions explained in this manual along with
the instructions that come with the option.
• In most areas of the world, Lenovo requires the return of defective CRUs (Customer Replaceable Units).
Information about this will come with the CRU or will come a few days after the CRU arrives.
Handling static-sensitive devices
Do not open the static-protective package containing the new component until the defective component has
been removed and you are ready to install the new component. Static electricity, although harmless to you,
can seriously damage computer components.
When you handle parts and other computer components, take these precautions to avoid static damage:
• Limit your movement. Movement can cause static electricity to build up around you.
• Always handle parts and other computer components carefully. Handle PCI/PCI-Express cards, memory
modules, system boards, and microprocessors by the edges. Never touch any exposed circuitry.
• Prevent others from touching the parts and other computer components.
• Touch the static-protective package containing the part to a metal expansion-slot cover or other
unpainted metal surface on the computer for at least two seconds. This reduces static electricity from the
package and your body before you install or replace a new part.
• When possible, remove the new part from the static-protective package, and install it directly in the
computer without setting the part down. When this is not possible, place the static-protective package
that the part came in on a smooth, level surface and place the part on the package.
• Do not place the part on the computer cover or other metal surface.
Knowing replaceable parts
Customer-Replaceable Units (CRUs)
CRUs are computer parts that a user can upgrade or replace. There are two types of CRUs: self-service and
optional-service.
• Self-service CRUs:
You can install self-service CRUs easily. These CRUs might be standalone, latched, or secured by up to
two screws.