Part number CMT42
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Power Cable Dell PowerEdge R660/R6625 1x5-PIN MB_BOSS_PWR for 1x4-PIN CTRL_BOSS_PWR (BOSS-N1)
| ism to | MB_BOSS_PWR |
|---|---|
| ism from | CTRL_BOSS_PWR |
| topology | boss_pwr |
| ism endpoint source | operator_research_2026-05-17 |
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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]