Canaan/Avalon is beginning to offer them as a kit for the 841 I believe. Don't know what all it comes with though.

Any ideas how much it will cost? Will it include all the hardware or will we be required to source the radiator setup, fluid, etc..?

I've been running two Avalon 821's per APW5 since feb and they've been golden on 220v. Use them for everything but two DragonMint T1's due to space constraints where I use MyRig PSU's instead.

Does anyone have any machines from this manufacturer at all, let alone a trusted member of the forum?

Both machines have two sets of stickers on the case. I can say the boards on one have stickers for 600m. Both are below 85ºC chip temps oriented vertically in a 75-78ºF room. Consuming 908 watts at the wall with APW5.

How does the PSU sound?

I’ve got two running in my office which I bought used and applied this method to restore them both to factory. No idea when they were produced. Can say that neither were hashing at 8.7TH/s prior to the reset, but are hashing beautifully set at 612.

Gotta place big orders with TSMC

Looking more and more like Bitmain is becoming a house of cards. Awful bet on propping up BCH with their mined BTC, rumor of their wafers failing, selling hundreds of millions of dollars worth of inventory at firesale prices and now being beaten by a number of other manufacturers. IPO could be a big exit-scam.

Remember, the heat is just a function on the energy consumption of the miner. ASICs are enormously efficient at converting electricity into heat. I believe the T2T has various tunes from performance down to efficiency with efficiency consuming the least wattage overall. Choosing the tune that consumes the least energy will reduce the heat output and the fan speed as a consequence. If the T2T firmware is anything like the T1/other inno firmwares there is no easy way to control fan speeds so this is your best bet.

On my T1's, in a 80-88ºF ambient room, have the fans running at:

1: Performance (17TH/s): 71%
2: Balanced (16TH/s): 57%
3: Balanced (15.8TH/s): 49%

As you can see there is quite a bit of difference between balanced and performance with a wattage difference of approx. 250 watts.

Also, inno has said that running their miners laying on their side with the heatsinks facing up will improve cooling efficiency... the T1's actually came with little rubber feet on the side to protect the finish of the case/reduce transmitted vibrations (presumably).

I've received the R4+PSU I ordered from minerjones, its in fantastic condition and hashes very well!

PM sent!

Specs do say +-10% on power draw...

PMed my offer.

I just left my email for early access, any idea how long it will take for that to be granted?

Is this still available?

PMed you

When one of mine stopped supplying power (think it went into protection mode) I had to leave it unplugged for nearly 10 minutes before it would supply power again. A quick unplug did nothing, fans would spin up but no power.

My 3 T1’s have been running for a few weeks now in a room that averages 87° and touches 95° on hot weekends. None of them have dropped any boards and hash at ~16.7 TH/s average on Slushpool on the performance setting. Factory setting is just about at 16 but varies just above or below by 0.2 day by day.

You didn’t specify what miners you purchased, but regardless of the choice, you’ve going to need to under-clock and undervolt the devices to reduce the power consumption and therefore the heat output. This will let you turn the fans down, greatly reducing the noise! This is easier done with certain miners, so if you could specify that would help people give you advice.

As for the wood closet, what do you mean by closet? Is it kind of like a wardrobe? Is any side of it open, the top maybe? If you use ducting attached to the output of each miner and bend it into S shapes, that will further reduce the noise output.

Good luck! The Avalon 741’s were easy to run quiet, control over voltage and the heat sinks were one continguous along the length of the miner, greatly reducing noise resulting from air turbulence.