coin404

I’m researching how to hack it too. Currently, I can control the fan and get it into eco mode but it’s not performing well. Found out the S9K/S9E likely uses Samsung chips. And the community has a firmware that allows…

Definitely, the S9K and S9E have new designs. New boards and chips. I’m trying to hack into it now. Got SSH access, working on tweaking it. The S9 standard was easy, but the S9K is way more complex.

Just got my S9K delivered today! Haven’t powered it up yet, but I opened it up. The hashboard looks totally different. The heatsinks are noticeably different too.

Yeah, lots of factors play into it. Case size, heatsink efficiency, type and number of fans. The heatsinks are mostly the same across all Bitmain miners, but I think there are different versions, which might affect…

Watch your fan speeds. I have two T9+ units running at 12th, but they have different temps. One fan runs at 4000rpm, the other at 5200rpm, yet the slower one is cooler. Can you post the stats for your S9SE and S9K? I…

I think the S9K and S9E are pretty much the same machine, just with a different chip, right? The frequencies are close enough to suggest that. S9K and S9E both have 180 chips, while the standard S9 has 189. So maybe…

The APW9 has three connectors for the fans. Each fan only has two wires, so it doesn’t directly monitor the RPM. I think it just checks the current. If it senses no current, it goes into a safety shutdown. Can’t leave…

I didn't measure the size of the fans, but I reckon they’re around 40x40mm and likely spin at 10-12k RPM. Way louder than the APW3/APW7. It’s like having a 120mm fan on full blast! I need to fix this for sure. Gotta be…

Hey folks, I'm thinking about modding the fans on my APW9 to silence them a bit. Just gonna add a resistor on the positive wire for each fan and monitor the temps. Should be simple, right? LOL. Here’s a pic for fun!

I’ve tried a bunch of mods for this PSU. It doesn’t check for fans, you can unplug all of them and it still works!