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	GW6104	GW6200	GW6204	GW6300	GW6304	GW6400	GW6404
Linux Prompt	4.7W	TBDW	5.17W	6.95W	6.0W	8.2W	7.1W	9.0W
Linux Stress	5.9W	TBDW	6.27W	10W	7.2W	10.3W	8.3W	11.8W

• GW6100 = Dual Core 800Mhz CN8021, 1GB DDR4, 8GB eMMC
• GW6104 = TBD
• GW6200 = Dual Core 800Mhz CN8021, 1GB DDR4, 8GB eMMC
• GW6204 = Quad Core 1.5GHz CN8031, 2GB DDR4, 8GB eMMC, GPS, CAN
• GW6300 = Dual Core 800MHz CN8020, 1GB DDR4, 8GB eMMC
• GW6304 = Quad Core 1.5GHz CN8030, 2GB DDR4, 8GB eMMC, GPS, CAN
• GW6400 = Dual Core 800MHz CN8020, 1GB DDR4, 8GB eMMC
• GW6404 = Quad Core 1.5GHz CN8030, 2GB DDR4, 8GB eMMC, GPS, CAN, SFP

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.

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:

• ​http://www.coolinnovations.com/

Troubleshooting

Please review the FAQ Article about Board Temperature