wiki:newport/powerthermal

Version 9 (modified by Ryan Erbstoesser, 3 months ago) (diff)

add package size

Newport Thermal Ratings

Gateworks pre-installs a heatsink on the CPU for all Newport boards. This heatsink provides basic cooling for the board during development but customers need to design their own thermal solution based on their particular enclosure, environment and operating conditions.

The Cavium CN80xx Octeon TX CPU is rated at:

  • 800MHz Dual Core (CN8020 - BGA676)
    • Max: 100C Tj (Junction Temp), 95C Tc (Case Temp)
    • Min: -40C Tj (Junction Temp), -40C Tc (Case Temp)
  • 1.5GHz Quad Core (CN8030 - BGA676)
    • Max: 95C Tj (Junction Temp), 90C Tc (Case Temp)
    • Min: -40C Tj (Junction Temp), -40C Tc (Case Temp)

Newport Temperature Readings

Newport currently has the ability to measure the board temperature.

CPU temperature is not available at this time.

From Gateworks testing, it has been observed the CPU temperature is typically around 20C higher than the measured board temperature.

Board temperature can be measured as shown on the GSC wiki page here: Reading Newport Board Temperature

Warning There is no automatic shutdown of the CPU / Board if the temperature goes over the maximum rating of the CPU. Therefore, the temperature needs to be monitored and handled appropriately.

Newport Power Dissipation

The following table provides typical power consumption for the various Newport board models without any attached peripherals.

Board GW6100 GW6200 GW6300 GW6304 GW6400 GW6404
Linux Prompt TBD TBD 6.0W 8.2W TBD TBD
Linux Stress TBD TBD 7.2W 10.3W TBD TBD
  • GW6300 = Dual Core 800MHz CN8020, 1GB DDR4, 8GB eMMC
  • GW6304 = Quad Core 1.5GHz CN8030, 2GB DDR4, 8GB eMMC, GPS, CAN

Newport Thermal Image

The following image is for the GW6300 board with the stock Gateworks heatsink.

  • Test Condition: 2 hours, Linux prompt, natural convection
  • Tambient @ 25C, CPU @ 75.9C, Board @ 67.5C.

Thermal Picture GW6300

Newport Heatsinks

The Newport has CPUs that have the following package sizes:

  • 27x27mm (GW63xx,GW64xx)
  • 21x21mm (GW61xx,GW62xx)

The Newport board comes with a standard passive aluminum finned heatsink. (28x28x11mm)

Other heatsink links for reference:

Troubleshooting

Please review the FAQ Article about Board Temperature

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