Safety information 9 General safety 9 Electrical safety 9 Voltage-selection switch 11 Safety inspection guide 11 Handling electrostatic discharge-sensitive devices 12 Grounding requirements 12 Safety notices multi-lingual translations 12 Chapter 3. ThinkCentre Safety and Warranty Guide that came with your computer. Page 6 Chapter An operating system password is very similar to a power-on password and denies access to the computer by an unauthorized user when the password is activated. Replacing the front fan assembly. There are no serviceable parts inside the device.
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Lenovo 7099B8U Hardware Maintenance Manual Page 163
Use only approved tools and test equipment. Reinstall the hard disk drive.
Additional service Removing and reinstalling the front bezel. Undetermined Problems Undetermined problems If you encounter undetermined problems, do the following: Updating flashing the BIOS from a disc. General checkout 39 Problem determination tips 39 Chapter 5.
Problems with Lenovo ThinkCentre A70? Locating Internal Drives Figure 4. Page Part Number: Page 75 – Locating parts on the system board Page 76 – Locating internal drives Page 77 – Removing the computer cover Page 78 – Removing and reinstalling the front beze Riser card, if installed 3. Post a new question here Accessing the microprocessor 8. f1b
Lenovo ThinkCentre A70 Hardware Maintenance Manual Page:
Chapters Table Of Contents Video card, if installed 2. You might have to gently twist the heat sink and fan assembly to free it from the microprocessor. You might have to gently twist the heat sink and fan assembly to free it from the microprocessor.
Align the screw holes in the new optical drive with the corresponding holes in the side of the drive bay assembly. Serial Port1 Address Use this option to control the input and output of the serial port. To replace the front fan assembly, do the following: To print the manual completely, please, download it.
Password Considerations Password considerations A password can be any combination of up to 16 1 to 16 alphabetic and numeric characters.
Lenovo ThinkCentre A70 Hardware Maintenance Manual Page: 207
Nicht in den Strahl blicken. Lejovo recovery session begins. POST error codes Each time you power-on the system, it performs a series of tests that check the operation of the system and some options. Safety notices multi-lingual translations.
Section Page Chapter lejovo. Additional information resources If you have Internet access, the most up-to-date information for your computer is available at: Remove any parts and disconnect any cables that might prevent your access to the memory slots.
LENOVO B8U HARDWARE MAINTENANCE MANUAL Pdf Download.
If you suspect a problem with one of these parts, contact a service technician. Updating flashing the BIOS from your operating system.
Any adapter cards c. If your computer has a voltage-selection switch, ensure that you set the switch to match the voltage available at your electrical outlet. Any reference to a Lenovo product, program, or service is not intended to state or imply that only that Lenovo product, program, or service may be used. Page 50 In the following index, X can represent any number.