Part number KH121
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CERTIFIED REFURBISHED DELL BOSS CARRIER, BOSS N1 HOT SWAP TRAY ADAPTER FOR R660 R760 R6625 R7625
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The LED codes on the R660 motherboard can signal various issues, such as a 5V switch fault or problems with connected USB devices, iDRAC cables, or the rear I/O card. To troubleshoot, perform a flea power drain, clear the NVRAM, and test with only the minimum components necessary for POST. If the server still does not boot, further inspection of the components may be required. [community thread]
To disable the liquid cooling setting, you can use an undocumented OEM IPMI command with ipmitool. Ensure you have root/admin privileges, and after executing the command, reboot both the iDRAC and the host operating system to apply the changes. [community thread]
Ensure that you are using the correct controller for NVMe drives, as some configurations may require a specific controller like the Boss controller for booting. Additionally, verify that the RAID settings are properly configured and that the Ubuntu installation supports the NVMe drivers for your specific setup. [community thread]
To address a server that is installed upside down, first remove the side door of the rack to inspect the latch mechanism for any damage or bending. If the latch is obstructed, it may be necessary to contact technical support for further assistance, as removing the server could result in damage. [community thread]
The appropriate riser card for the R660 server that supports a full height SAS card is part number 540-BFFR. This riser configuration includes 2x16 FH slots and is designed for customer installation. [community thread]