Reference Guide

Table 9. Supported PERC controllers (continued)
Performance Level Controller and Description
Invader ROC
Memory: 2 GB, NV 72-bit, 866MHz
x8 12 Gb SAS, 6 Gb/s SATA
x8 PCIe 3.0/2.0
H745P (Internal)
Memory: 8 GB
x8 12 Gb SAS
x8 PCIe 3.0/2.0
H730P MX (External)
Memory: 8 GB
x8 12 Gb SAS, 6 Gb/s SATA/SAS, 3 Gb/s SATA
x8 PCIe 3.0
H745P MX (External)
Memory: 8 GB
12 Gb/s SAS, 6 Gb/s SATA/SAS, 3 Gb/s SATA
x8 PCIe 3.0
Mezzanine cards
The PowerEdge MX840c sled supports:
Table 10. Supported mezzanine cards
Type Connection
Two x16 PCIe Gen3 for mini mezzanine cards Connected to processor 2 and processor 4
Four x16 PCIe Gen3 for mezzanine cards Mezzanine A is connected to processor 1 and processor 3
Mezzanine B is connected to processor 2 and processor 4
Environmental specifications
NOTE:
For additional information about environmental certifications, please refer to the Product Environmental Datasheet
located with the Manuals & Documents on support.dell.com.
Table 11. Temperature specifications
Temperature Specifications
Storage –40°C to 65°C (–40°F to 149°F)
Continuous operation (for altitude less than 950 m or
3117 ft)
10°C to 35°C (50°F to 95°F) with no direct sunlight on the
equipment.
Fresh air For information about fresh air, see the Expanded Operating
Temperature section.
Maximum temperature gradient (operating and
storage)
20°C/h (68°F/h)
Technical specifications 17