January 10 2013 - Thermal and Power Consumption Testresults


20130110-wandboard-thermal-powerconsumption 
With just one week to go before we start shipping Wandboard towards distributors and few weeks until people get their hands on the boards. We want to ensure ourselves that all is in place. The git server has to be setup next week. The Wandboard quickstart guide has to be checked and a million other items are on the to-do list.

We received many questions on the Wandboard power consumption and thermal requirements. Above you can see a setup with a Wandboard Dual with WiFi and a HDMI display inside a Wandboard enclosure.

The temperature was taken after 24 hours operation and with 31.4 degrees Celsius (89 degrees Fahrenheit) we are very satisfied given that the room temperature was aprox 20 degrees. (thermal delta of 12 degrees). 

We took our linux code without any of the Freescale i.MX6 power savings enabled.

Wandboard Dual - Idle (see above setup)
Power consumption 0.23A * 5V = 1.15 Watt 

Wandboard Dual - 100% utilization
Power consumption 0.32A * 5V = 1.6 Watt 

At 100% full load the air temperature INSIDE the Wandboard enclosure is around 43 degrees Celsius. Without any added thermal heatsink and the CPU surface temperature is just above 50 degrees. This pretty much is similar to the results you find with a WiFi access point and it's a temperature that many notebooks and desktops will be jealous of.

Wandboard

wandboard-freescale-imx6

Wandboard Specifications

  Wandboard Solo Wandboard Dual Wandboard Quad
 Processor Freescale i.MX6 Solo Freescale i.MX6 Duallite Freescale i.MX6 Quad
 Cores Cortex-A9 Single core Cortex-A9 Dual core Cortex-A9 Quad core
 Graphic
 engine
Vivante GC 880
+ Vivante GC 320
Vivante GC 880
+ Vivante GC 320
Vivante GC 2000
+ Vivante GC 355
+ Vivante GC 320
 Memory 512 MB DDR3 1GB DDR3 2GB DDR3
       
 Audio tag tag tag
 Optical
 S/P DIF
tag tag tag
 HDMI tag tag tag
 Camera
 interface
tag tag tag
 Micro-SD slot 2 2 2
       
 Serial port tag tag tag
 Expansion
 Header
tag tag tag
 USB tag tag tag
 USB OTG tag tag tag
 SATA NO NO tag
       
 Gigabit LAN tag tag tag
 WiFi (802.11n)   tag tag
 Bluetooth   tag tag
 

79 USD

99 USD

129 USD

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