System information

Dell
PowerEdge M1000e Technical Guide 30
5.2.5.4 Behavior of 1350W + 2360W/2700W Power Supplies
Mixing 1350W (110VAC) and 2360W/2700W (220VAC) power supplies is not allowed.
• If you insert an 110VAC power supply into a chassis running 220VAC, the system will not allow
the 110VAC supply to provide capacity to the system. The AC good light will illuminate, but
the DC good light will not.
• If you insert a 220VAC power supply into a chassis running 110VAC, the system will not allow
the 220VAC supply to provide capacity to the system. The AC good light will illuminate, but
the DC good light will not.
Upon starting a chassis from cold boot with a mix of 110VAC and 220VAC power supplies, the CMC
will power up the first-detected power supply in slots 1-3 and slots 4-6 and will choose the lead
voltage reference. All power supplies must match the lead voltage reference for the system to allow
the power supplies to be powered on.
If switching from 220VAC to 110VAC or vice-versa, you will need to remove all power from the chassis
and power the chassis with the new voltage line.
5.2.6 Recommended Number of Servers
This section provides guidance for the suggested maximum number of blade servers to run under
each power-supply configuration.
5.2.6.1 Half-height Blade Servers
Table 11 lists the maximum number of recommended half-height blade servers per power-supply
configuration according to the following server-configuration definitions:
 Light configuration: 1 x 40W processor, 2GB memory
 Medium configuration: 2 x 80W processors, 72GB memory
 Heavy configuration: 2 x 95W processors, 192GB memory
Table 11. Half-Height Servers Per Power Supply Configuration
Power Supply
Configuration
Number of Servers
220–240V power
2700W PSUs
Number of Servers
220–240V power
2360W PSUs
Number of Servers
100–120V power
2700W/1350W PSUs
1
2+1
2+2
16 light,
13 medium, or
10 heavy
16 light,
11 medium, or
8 heavy
9 light,
4 medium, or
3 heavy
3+0
3+1
3+3
Any server
combination
16 light,
16 medium, or
15 heavy
16 light,
8 medium, or
6 heavy
4+1
4+2
Any server
combination
16 Light,
13 Medium, or
10 Heavy
5+1
16 light,
16 medium, or
13 heavy
1
With sufficient facility power available