Pushing the Limits of GekkoScience A1 F

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sam_lynxMember
Posts: 6 · Reputation: 99
#1Jun 15, 2020, 07:02 AM
So what's gonna give out first, my 3A chargers or the USB ports? I can't even figure out if that whiff of melting plastic is from the gear or my PC running xmrig and t-rex. Has anyone else cranked these up? How far did you push it, and what tricks did you use to handle heat and power?
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darkguruHero Member
Posts: 849 · Reputation: 4147
#2Jun 15, 2020, 12:00 PM
The connectors will not tolerate more than 3.5a 24x7x365 and even that is pushing them VERY hard. Actual ratings for USB-A connectors is 1.5A continuous and 3.1A for a short time (charging things). Folks have gotten around that by hard wiring 5v power to the power traces after the connector on the stick. I think they went as high as 4 amps using very strong air cooling. It's buried in the Gekko F1 thread.
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sam_lynxMember
Posts: 6 · Reputation: 99
#3Jun 16, 2020, 01:18 AM
Thanks for the info! I'd like to see how far I can push them in the current form factor. I have a y split cable with one leg that's power only and the other is data/power. I think it's drawing power from the 3A charging block and maybe the hub as well, but I assume it's around 3A max for both the F and the A1. Got these mostly for fun to get into the mining game - I love the concept of a stick miner, although I do wish they could come in usb-c form factor that can take a little more juice. The A1 is actually reporting under 65-68C in my current setup, so there's headroom there. The F is running on thoughts and prayers. How did they connect to the traces... soldering or? I'm a little hesitant to actually cut these things.
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