H2 overheat - is it dead?

sonicbuddha · Post by **sonicbuddha** » Wed Mar 15, 2023 7:53 am

I pulled an older H2 off the shelf with the thought to rebuild an arcade cabinet, installed Windows, and in a few minutes of copying files which drove the CPU to 100% it died, no power, no lights. Is it dead? Or did it trip a thermal sensor that can be reset?

Post by **odroid** » Wed Mar 15, 2023 10:56 am

Which power supply have you used?
Is the DC output still working?
If you have a DMM, measure the DC plug voltage first.

Any LED lights on the board?

Code: Select all

- Red (PWR) - Solid light when DC power is supplied
- Blue (left, ALIVE) - System is running
- Blue (right, RESET) - When the RESET button is pressed, it turns off shortly
- Amber (SATA) - Flashes when there is data transfer
- Green (NVMe) - Flashes when there is data transfer

sonicbuddha · Post by **sonicbuddha** » Thu Mar 16, 2023 5:08 am

Stock cullpower power supply. When plugged in it has a small green led. The board, however, lights no leds what so ever.

Post by **odroid** » Thu Mar 16, 2023 9:25 am

Can you try measuring the output voltage of the power supply?

sonicbuddha · Post by **sonicbuddha** » Thu Mar 16, 2023 9:46 am

Access to a mutlimeter is unlikely, knowing how to utilize it properly in this situation even moreso. I can say I have (had?) multiple H2s, none of their power supplies work for this sorry little board.

Post by **odroid** » Thu Mar 16, 2023 10:42 am

In that case, the power supply is not a root cause.

Measure voltage across the PD1 nearby the DC jack to check if the fuse was dead or not.

: Screenshot from 2023-03-16 10-40-53.png (44.49 KiB) Viewed 191 times

sonicbuddha · Post by **sonicbuddha** » Fri Mar 17, 2023 5:20 am

I'm open to giving this a try but, before I start up that learning curve, if it is the fuse is it replaceable?

Post by **odroid** » Fri Mar 17, 2023 10:02 am

You need to desolder the SMD type fuse and solder a new one.
If you don't have any experience of soldering SMD type components, you might need to ask it other people or something like a smartphone repair shop.

Before going to next step, it must be worth to check the fuse status.

sonicbuddha · Post by **sonicbuddha** » Mon Mar 20, 2023 3:31 am

Random follow up, anywhere in the states still selling the H2 CPU fan with 1.25mm 4-pin wafer male connector? A lot of places consider the H2 old news and I worry about my lone remaining H2. When I used it as a play server it was fine but putting it to use where it might be under sustained load now seems problematic without a fan.

L67GS · Post by **L67GS** » Mon Mar 20, 2023 7:03 am

sonicbuddha wrote: ↑
Mon Mar 20, 2023 3:31 am
Random follow up, anywhere in the states still selling the H2 CPU fan with 1.25mm 4-pin wafer male connector? A lot of places consider the H2 old news and I worry about my lone remaining H2. When I used it as a play server it was fine but putting it to use where it might be under sustained load now seems problematic without a fan.

Email Bo @ Ameridroid, they end up with used items somehow so he may pull a hail Mary for you.

sonicbuddha · Post by **sonicbuddha** » Tue Mar 21, 2023 12:17 am

Sadly, I've already been to Ameridroid, discussed with them, they are out of the H2 fans

powerful owl · Post by **powerful owl** » Tue Mar 21, 2023 12:41 am

You can make an adapter cable. Get a pigtail with the 1.25mm JST connector on one end, and use this for the other end https://www.amazon.com/gp/product/B08HYTGH7D/
Then you can connect a Noctua fan

ODROID

H2 overheat - is it dead?

H2 overheat - is it dead?

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