Table 10. DC indicator codesDC indicator Indicator stateDC output available ONDC output unavailable OFFThermalThe chassis is cooled from front to back, as with typical rack systems. There are separate paths for the exhaust, keeping the PSUexit air isolated from the sled exit air. The sled air flow is controlled by the rear 80mm fans, while the PSU air flow is controlled by thePSU fans located toward the front of the PSUs.Ambient Temperature RequirementsIn general the EMC PowerEdge MX7000 shall support an ambient operating temperature of 10° C to 35° C Some moduleconfigurations (e.g., compute sleds with special high wattage CPU SKU's) aren't able to support 35° C ambient with fullperformance. And there are some modules and features that can't be supported at Fresh Air ranges.Table 11. Ambient Temperature restrictions30 ° C 35 ° C 40 ° C ~ 45 ° C ExpandedOperating TemperatureChassis (MX7000) IncludesFans, MM, & PSUsNo restriction No restriction No RestrictionsFabric A/B Modules No restriction No Restrictions Not Supported List:MX9116nFabric C Modules No restriction No restriction No Restrictions2S Compute (MX740c) No restriction 200W & 205W CPUs willexperience performancereduction when configuredwith 6 HDDNot Supported Features:150W CPUs and aboveAdditional specific CPU SKUrestrictions:6146 (165W / 12c)6144 (150W / 8c)6134 (130W / 8c)6128 (115W / 6c)5122 (105W / 4c)NVDIMMNVMe HDDMezz cards >30W4S Compute (MX840c) No Restrictions No Restrictions Not Supported Features:165W CPUs and above24