Memory problems

vFollow the suggested actions in the order in which they are listed in the Action column until the problem is solved.

vSee the parts listing in the Hardware Maintenance Manual to determine which components are customer replaceable units (CRU) and which components are field replaceable units (FRU).

vIf an action step is preceded by “(Trained service technician only),” that step must be performed only by a trained service technician.

Symptom

Action

 

 

 

The amount of system memory

1.

Make sure that:

that is displayed is less than the

 

v No error LEDs are lit on the operator information panel.

amount of installed physical

 

 

v The memory modules are seated correctly.

memory.

 

 

 

v You have installed the correct type of memory (see “Installing a memory

 

 

module” on page 14).

 

 

v All banks of memory are enabled. The server might have automatically

 

 

disabled a memory bank when it detected a problem.

 

2.

Check the system event/error log for error message 289 (see “Using the

 

 

Configuration/Setup Utility program” on page 35); if a DIMM was disabled by a

 

 

systems-management interrupt (SMI), replace the DIMM.

 

3.

Run memory diagnostics (see “Running the diagnostic programs” in the

 

 

Hardware Maintenance Manual ).

 

4.

Add one pair of DIMMs at a time, making sure that the DIMMs in each pair

 

 

match.

 

5.

Reseat the DIMMs.

 

6.

Replace the following components one at a time, in the order shown, restarting

 

 

the server each time:

 

 

a. DIMMs

 

 

b. (Trained service technician only) System board

 

 

 

Microprocessor problems

vFollow the suggested actions in the order in which they are listed in the Action column until the problem is solved.

vSee the parts listing in the Hardware Maintenance Manual to determine which components are customer replaceable units (CRU) and which components are field replaceable units (FRU).

vIf an action step is preceded by “(Trained service technician only),” that step must be performed only by a trained service technician.

Symptom

Action

 

 

 

The server emits a continuous

1.

Correct any errors that are indicated by the LEDs (see “System-board LEDs” in

beep during POST, indicating

 

the Hardware Maintenance Manual ).

that the microprocessor is not

 

2.

Make sure that the server supports the microprocessor.

working correctly.

3.

(Trained service technician only) Make sure that the microprocessor is seated

 

 

 

correctly.

 

4.

(Trained service technician only) Replace the microprocessor.

 

 

 

Chapter 5. Solving problems 49

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Lenovo 6435, 6438, 6437, 6436 manual Memory problems, Microprocessor problems
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6435, 6436, 6437, 6438 specifications

Lenovo has continuously pushed the boundaries of technology with its innovative offerings in the laptop segment. Among its diverse portfolio, the Lenovo 6438, 6437, 6435, and 6436 models stand out due to their advanced features and robust performance, catering to both professional and everyday users.

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In summary, the Lenovo 6438, 6437, 6435, and 6436 models exemplify the brand's commitment to innovation. With their unique features tailored for various user needs, these models present an excellent choice for anyone looking for performance, portability, security, or gaming capabilities. Whether for business, creativity, or leisure, Lenovo consistently provides quality and reliability in its laptop offerings.
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