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5. Remove or disconnect the following devices if applicable, one at a time, until you find the failure. Turn on
and configure the server each time you remove or disconnect a device.
• Any external devices
• Surge-suppressor device (on the server)
• Printer, mouse, and non-Lenovo devices
• Each adapter
• Storage drives
• One memory module at a time until you reach the minimum configuration that is supported for the
server
Notes: The minimum configuration required for the server is as the following:
• One processor
• One 8 GB ECC UDIMM in slot 1
• One power supply
• One 3.5-inch drive in drive bay 1
• Power cord
• One system front fan
6. Turn on the server.
7. Listen to the POST error beeps.
Table 31. POST error beeps
Beep Error description
Three short ones followed by one long one No memory is detected by the system.
Two long one followed by three short ones No video card (including intergrated video card) is detected by the
system.
Note: A short beep lasts about 0.4 second, while a long one lasts about 0.9 second.
If the problem is solved after an adapter is removed from the server, but recurs after it is reinstalled, suspect
the adapter. If the problem recurs when the adapter is replaced with a different one, try the original adapter in
a different PCIe slot.
If the problem appears to be a networking one while the server passes all system diagnostics, suspect a
network cabling problem that is external to the server.
List of POST error messages
See this section for the list of POST error and related information.
00CE - Machine Type or Serial Number is INVALID
Machine type or serial number invalid.
This error message will be displayed if one of the following conditions is true:
1. Machine type and model name is invalid.
2. System serial number is invalid.
To update these product information, go to
http://datacentersupport.lenovo.com/us/en/products/servers/
thinksystem/st50v2/downloads
and download the “The uEFI VPD SMBIOS Information Update Utility”.
0135 - Fan Failure
Fan related failures.
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ThinkSystem ST50 V2 Maintenance Manual
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