Samsung ProXpress M453x series Service Manual page 181

► Error Code
S1–2411
► Error message
Error: #S1-2411 / HDD System Failure: #S1-2411. Turn off then on. Call for service if the problem persists
► Symptom
Hard Disk is not installed in the machine. / Hard Disk is defective.
► Troubleshooting method
1) Turn the machine off then on. If the problem persists, check the followings.
2) Check if the HDD cable is connected correctly. Reconnect it.
3) If the problem persists, replace the HDD.
► Error Code
S1–2511
► Error message
Error: #S1-2511 / MSOK System Failure: #S1-2511.Call for service
► Symptom
MSOK is not installed properly. / MSOK is defective.
► Troubleshooting method
1) Turn the machine off then on. If the problem persists, check the followings.
2) Check if the MSOK is inserted correctly. Remove and reinstall it.
3) If the problem persists, replace the main board.
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4. Troubleshooting
4-86