Password considerations A password can be any combination of up to 64 alphabetic and numeric characters. This is important when installing the new microprocessor on the system board. Video card, if installed 2. Remove the hard disk drive. This automatically runs a pre-defined group of tests from each test category. The card fits tightly into the card slot.

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Don’t have an account? Pivot the optical drive upward and disconnect the power supply assembly cables from all drives and from power connectors on the system board.

Then push the bracket to the left to align the screw hole in the bracket with the corresponding hole in the chassis. Handling Static-sensitive Devices, Locating Internal Drives Locating internal drives Internal drives lenovo thinkcentre mt-m 5048 devices that your computer uses to 504 and store data. Accessing the microprocessor 7.

For security reasons, it is recommended to use a strong password that cannot be easily compromised.

Install the card reader bracket to the chassis. If your computer has a voltage-selection switch, ensure that you set the switch to match the voltage available at your electrical outlet.

By pressing ‘print’ button lenovo thinkcentre mt-m 5048 will print only current page.

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Remove the eight screws that secure the system board. Press F10 to save changes and exit the Setup Utility program.

If you decide to set any passwords, read the following sections. Page 81 – Locating connectors on the rear of your Completing The Parts Replacement 6.

Pivot the optical drive bay assembly upward to lenovo thinkcentre mt-m 5048 access to the system board.

Press Enter when prompted to confirm the exit. Then remove the front audio and USB assembly bracket from the chassis. When installing or replacing an internal drive, it is important to note the type and size of the drive that you can install thinkcenter replace in each bay and correctly connect the cables to thinkcrntre drive installed. Depending on whether you are installing or replacing a PCI card, do one of the following: When ErP compliance mode is enabled, you can wake up your computer by lenovo thinkcentre mt-m 5048 one of the following: The failing system board must lenovo thinkcentre mt-m 5048 returned with a microprocessor socket cover to protect the pins during shipping and handling.

Lenovo ThinkCentre M81 Hardware Maintenance Manual

Installing the power supply assembly Then remove the heat sink fan duct from the failing heat sink and fan assembly. Partially remove screwthen fully remove screwand then fully remove screw Note: Comments to this Manuals Your Name.

Remove all media from the drives and turn off all attached devices and the computer. Remove the screw that secures the cover presence switch intrusion switch and remove the thincentre presence switch from the chassis.

Connect the internal speaker cable to the thinkcenhre board. Replacing the primary hard disk drive. Place the new heat sink and fan assembly on the system board so that the four screws lenovo thinkcentre mt-m 5048 aligned with the corresponding holes in the system board. Lenovo representative for information on the products and services currently available in your area.

About this manual Page 8 Page 9 – Chapter 2.

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Replacing the system board. Any functionally equivalent product, program, or service that does not infringe any Lenovo intellectual property right may be used instead. Check the power-on switch for continuity. Page 93 Page 94 – Installing or replacing thinlcentre card reader Page 95 – installing the card reader Page 96 Page 97 – replacing the card reader Tjinkcentre 98 – Replacing the battery Page 99 – Replacing the power supply assembly Page Page – Replacing the heat sink and fan assembly Page Page – Replacing the microprocessor Page Page Page – Replacing the system board Page Page Page – Replacing the primary hard disk drive Page Page – Replacing the secondary hard disk drive Page Page – Replacing the front fan assembly Page – Replacing the rear fan assembly Page Page – Replacing the front audio and USB assemb Component locations Heat sink and fan lenovo thinkcentre mt-m 5048 System fan assembly Microprocessor Internal speaker installed in some models.