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New Member

Discrepancy between the power calculator and "show power" on a 6513

Hello Cisco Support Forums,

Recently I setup a power calculation for a 6513, but the results are very different from what we see when we run 'show power'.
------------------ show power ------------------


system power redundancy mode = redundant
system power total =     2771.16 Watts (65.98 Amps @ 42V)
system power used =      1588.86 Watts (37.83 Amps @ 42V)
system power available = 1182.30 Watts (28.15 Amps @ 42V)
                        Power-Capacity PS-Fan Output Oper
PS   Type               Watts   A @42V Status Status State
---- ------------------ ------- ------ ------ ------ -----
1    WS-CAC-3000W       2771.16 65.98  OK     OK     on 
2    WS-CAC-3000W       2771.16 65.98  OK     OK     on 
                        Pwr-Allocated  Oper
Fan  Type               Watts   A @42V State
---- ------------------ ------- ------ -----
1    WS-C6K-13SLT-FAN2   298.20  7.10  OK
                        Pwr-Requested  Pwr-Allocated  Admin Oper
Slot Card-Type          Watts   A @42V Watts   A @42V State State
---- ------------------ ------- ------ ------- ------ ----- -----
1    WS-X6148-GE-TX      103.74  2.47   103.74  2.47  on    on
2    WS-X6148-GE-TX      103.74  2.47   103.74  2.47  on    on
3    WS-X6148-GE-TX      103.74  2.47   103.74  2.47  on    on
4    WS-X6148-GE-TX      103.74  2.47   103.74  2.47  on    on
5    WS-X6148-GE-TX      103.74  2.47   103.74  2.47  on    on
6    WS-X6148-GE-TX      103.74  2.47   103.74  2.47  on    on
7    WS-SUP720-3B        282.24  6.72   282.24  6.72  on    on
8                          -     -      282.24  6.72  -     -
9    WS-X6148-GE-TX      103.74  2.47   103.74  2.47  on    on
Is this a mistake in the power calculator tool?  It looks like output current is the same (37.83 Amps) but it seems like the power calculator is low-balling the capabilities of the WS-CAC-3000W - the system power budget says it has 65.98 Amps (in redundant mode) but the power calculator is showing that it is only capable of 46.48 Amps, and that is in combined mode!
Paul

Everyone's tags (2)
1 REPLY
New Member

Re: Discrepancy between the power calculator and "show power" on

Oh I solved it.

They're running 220V so the PSUs are capable of 65 Amps.

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