CP3005 – User Guide Rev. 1.8
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If the main power input is switched off, the supply voltages will not go to 0V instantly. It will
take a couple of seconds until the capacitors are discharged. If the voltage rises again before
it has gone below a certain level, the circuits may enter a latch-up state where even a hard
RESET will not help any more. The system must be switched off for at least 10 seconds
before it may be switched on again. If problems still occur, turn off the main power for 30
seconds before turning it on again.
5.5.
Power Consumption
The goal of this description is to provide a method to calculate the power consumption for the CP3005 baseboard and
for additional configurations. The processor and the memory dissipate the majority of the thermal power.
The power consumption measurements were carried out using the following testing parameters:
CP3005 installed in the system slot
Ethernet ports not connected
8 GB/16 GB/32 GB DDR4 SDRAM in dual-channel mode
+3.3 V, 5 V, and 12 V main supply voltage
2.5 m/s airflow
The operating systems used were uEFI Shell and Windows® 10, 64-bit. All measurements were conducted at an
ambient temperature of 25°C. The power consumption values indicated in the tables below can vary depending on the
ambient temperature. This can result in deviations of the power consumption values of up to 15 %.
The power consumption was measured using the following processors:
Xeon® E-2176M, 2.7 GHz
Core™ i5-8400H, 2.5 GHz
Celeron® G4930E, 2.4 GHz
Xeon® E-2276ML, 2.0 GHz
Core™ i3-9100HL, 1.6 GHz
The power consumption was measured using the following configurations:
Work load: uEFI Shell (CPU is booted and stands without a running application in the shell). For this
measurement the processor cores were active, the graphics controller was in idle state (no application
running) and Intel® Turbo Mode was disabled.
Work load: Idle (Win 10) (Win 10 is booted and CPU stands without a running application in the Windows
screen). For this measurement all processor cores were in idle state (no application running), Intel graphics
driver loaded and Intel® Turbo Mode was disabled.
Work load: Typical (load generated by Intel Power Thermal Utility for CoffeeLake PTU tool and Win 10). For
this measurement all processor cores were operating at core power level 70 % work load and no graphics
GFX power level. Intel® Turbo Mode was disabled. These values represent the power dissipation reached
under realistic OS-controlled applications.
Work load: Maximum (load generated by Intel Power Thermal Utility for CoffeeLake PTU tool and Win 10).
These values represent the maximum power dissipation achieved through the use of specific tool settings to
heat up the processor and graphics cores to get the max. TDP . All processor cores were operating at core
power level 100 % work load and graphics GFX power level High. For this measurement Intel® Turbo Mode
setting is disabled or enabled depending of tested processor. These values are unlikely to be reached in real
applications.
