Intel Phi 7120A SC7120A Data Sheet
Product codes
SC7120A
Document ID Number: 328209 003EN
Intel
®
Xeon Phi™ Coprocessor Datasheet
53
5
Power Specification and
Management
Power management on the Intel
®
Xeon Phi™ coprocessor is primarily managed via the
shows estimates for coprocessor power states and respective memory power states,
along with estimates of corresponding card power and wakeup times.
along with estimates of corresponding card power and wakeup times.
As the Intel
®
Xeon Phi™ coprocessor is being powered-on, it is expected to draw
measurable amounts of current from each of the power rails connected to the
coprocessor card. Below is the current and power drawn from each source during the
power-on phase of the SE10P/SE10X SKU:
coprocessor card. Below is the current and power drawn from each source during the
power-on phase of the SE10P/SE10X SKU:
• +12V 2x4 connector: 5.4A (~64W)
A peak current of 7.1A for duration of 40µs
• +12V 2x3 connector: 3A (~36W)
• +12V PCI Express* slot pins: 1.6A (~20W)
• +3.3V PCI Express* slot pins: 1.3A (~5W)
• Measured total power consumption: ~120W
• +12V PCI Express* slot pins: 1.6A (~20W)
• +3.3V PCI Express* slot pins: 1.3A (~5W)
• Measured total power consumption: ~120W
The above power-on measurements were taken with a single coprocessor, using a
specific open chassis system. It is not indicative of the coprocessor behavior in all types
of systems in which the coprocessor will be used. The current and power values are
meant to be guidelines for system power planning, and not specification of the Intel
specific open chassis system. It is not indicative of the coprocessor behavior in all types
of systems in which the coprocessor will be used. The current and power values are
meant to be guidelines for system power planning, and not specification of the Intel
®
Xeon Phi™ Coprocessor.
5.1
5110P SKU Power Options
Most HPC applications running on the 5110P SKU are expected to draw less than 225W,
but the card is designed to support power surges above 225W. If the power surge goes
above 236W for more than 300ms, then the SMC on the card will instruct the Intel®
Xeon Phi™ coprocessor to drop its operating frequency by approximately 100MHz, thus
reducing power dissipation by approximately 10W. If power surge goes above 245W for
more than 50ms, then the SMC will assert the PROCHOT_N signal to the coprocessor,
but the card is designed to support power surges above 225W. If the power surge goes
above 236W for more than 300ms, then the SMC on the card will instruct the Intel®
Xeon Phi™ coprocessor to drop its operating frequency by approximately 100MHz, thus
reducing power dissipation by approximately 10W. If power surge goes above 245W for
more than 50ms, then the SMC will assert the PROCHOT_N signal to the coprocessor,
Table 5-1.
Intel
®
Xeon Phi™ Coprocessor Power States
Coprocessor
Power State
[7120A/D] / 7120P/X
3120A/P
[31S1P]
Power (Watts)
SE10P/X
Power (Watts)
5110P / [5120D]
Power
1
(Watts)
Notes:
1. Refer
for information on TDP.
Wakeup Time
C0
2
2. C0 matches the coprocessor TDP; other power states are specifications.
[270] 300
300
225 [245]
N/A
C1
<115
<115
<115
<1µs
PC3
<50
<50
<45
<75ms
PC6
<30
Not supported
Not supported
<525ms