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Re: [FIRMWARE] Itus Networks Shield Firmware Upgrade *WIP*

Posted by Grommish on May 09, 2019; 11:00pm
URL: https://itus.accessinnov.com/FIRMWARE-Itus-Networks-Shield-Firmware-Upgrade-WIP-tp1726p1728.html

Hardware Update:

I was testing the chassis layout and became concerned with heat soak of the CPU.  The sponge-foam that was on the chip didn't look or feel like thermal-conductive foam and the box was getting *very* warm.

I went out and purchased a heatsink kit for a Raspberry Pi.  The kit came with 3 heatsinks, but I only needed the one.  I might be able to use the other two on the bottom of the PCB board, but for now, the flat copper heatsink is perfect for what I wanted to do.  The heatsinks comes with thermal pads/double stick tape already installed, so you just peal and stick.

I probed the copper after installing and letting it "heat up" and recorded 123 degrees F (50.5 degrees C) at idle on the surface.  I don't even want to think about what it ramps up to when it's actually working under load.  Heat is the enemy of both the board and the chipset.  I'm working on finding a true 5vDC 3-pin fan to hook to the pin-header on the board, but it's not easy.  I've gone through 3 fans and each was labelled as 5vDC but actually at 12vDC.  Tsk.  If I can externally mount a fan over the vent holes to drag air out of the case (pull), it'll cool the temps even further.

Just an idea for those who feel like messing with it!

Running Itus Shield v2 Firmware