Lenovo ThinkSystem DM240N Service Manual page 21

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Reconnect the storage cabling to the same two NSM module ports.Cables are inserted with

the connector pull-tab facing up. When a cable is inserted correctly, it clicks into place.

Reconnect the power cord to the power supply, and then secure the power cord with the

power cord retainer. When functioning correctly, a power supply's bicolored LED illuminates

green.

Additionally, both NSM module port LNK (green) LEDs illuminate. If a LNK LED does not

illuminate, reseat the cable.

Step 10. Verify that the attention (amber) LEDs on the NSM module containing the failed RTC battery and

the shelf operator display panel are no longer illuminated.

When the replacement RTC battery's voltage is sufficient, the attention LEDs turn off.

Step 11. Verify that the NSM module is cabled correctly.

You can download and run ThinkSystem Intelligent Monitoring Config Advisor to verify cabling. If

any cabling errors are generated, follow the corrective actions provided.

Lenovo Downloads: ThinkSystem Intelligent Monitoring Config Advisor

Chapter 5

Replacing the real-time clock battery

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