Power consumption for different FIM-7921F FortiGate 7081F configurations

The tables in this section provide information about how to calculate maximum power consumption for a FortiGate 7081F system with two FIM-7921Fs and with two or six FPM-7620Fs.

These example calculations should be used as guidelines only. In practice, actual power usage will most likely be higher and the efficiency of PSUs varies for different levels of power consumption and loading. The maximum power consumption of a fully loaded FortiGate 7081F under ideal conditions has been measured as 7290W and the average power consumption is 6100W.

Power consumption calculation with two FPM-7620Fs

The following table shows that a FortiGate 7081F with two FIM-7921Fs and two FPM-7620Fs would require a power allocation of 3966W. The capacity of each PSU is 2500W. The system would require two PSUs (2500 x 2 = 5000W). You could add up to four extra PSUs for redundancy.

Module	Max power consumption (W)	Number of modules	Total max power (W)
FIM-7921F	597	2	1194
FPM-7620F	716	2	1432
Chassis (fans, SMMs etc)	1340	N/A	1340
		Totals	3966

To completely power a FortiGate 7081F with two FPM-7620Fs and two FPM-7620Fs you would need two PSUs. You can add up to three more PSUs to provide 2+1, 2+2, 2 + 3, or 2+4 redundancy.

Power consumption calculation with six FPM-7620Fs

The following table shows that a FortiGate 7081F with two FIM-7921Fs and six FPM-7620Fs would require a power allocation of 6830W. The capacity of each PSU is 2500W. The system would require three PSUs (2500 x 3 = 7500W). You could add up to three extra PSUs for redundancy.

Module	Max power consumption (W)	Number of modules	Total max power (W)
FIM-7921F	597	2	1194
FPM-7620F	716	6	4296
Chassis (fans, SMMs etc)	1340	N/A	1340
		Totals	6830

To completely power a FortiGate 7081F with two FPM-7620Fs and six FPM-7620Fs you would need three PSUs. You can add up to three more PSUs to provide 3+1, 3+2, or 3+3 redundancy.