I got a hold of 2 of these the other day. the 721s

my cost was zero

anyone have a good setting

to do say 5th at 700 watts?

don't feel like reading the whole thread.

To drop lower you have to use the --Avalon7-voltage switch in Other Options. I went as low as 10 at which point the 721 would only start enough to run at 1.5THs. Using voltage 11 fired up all strings but put speed around 3.5THs. 12 with -2 as offset was the sweet spot for me with very low power use (and temps) and decent hash speed.

Can any detectives find out how many have sold based on the payment address?

a) They told me 10-20 business days for wire transfer to refund my X2. When sending the money, it was 2 days. They just hijack the money.

b) With wire transfer the extra charges were excessive. Shipping at USD 300 while Bitmain charges USD 100 on the same route. The surchages for crypto were also > 5%.

c) Halong started SIA Mining with 500 B52 mid march and still have some 200 online (https://siamining.com/addresses/0104ceeee0c1335e6770b9e620baa87615e1780ea1a5e6bca2df2651c92313f9c3aa56865535). They had 1.8 TH for 10 days in march before delivering, accounting for > 10% of the network hashrate thus driving difficulty. This is not a test but collection a large pile of coins with miners paid by customers. Total > USD 300k in SIA just for this.

a) and b) are not professional, but c) is what many alledge Bitmain of doing: Mining while profitable at own account, shipping when difficulty is up.

I would love to see a new version of the R4.  I think a sub 1000 watt draw miner would sell very quickly here in the US for the entry level miner.  Hell when they come out with the 12nm or 10nm chips, make like a "mini" version for the hobbyist that uses 1/2 the number of chips

It is the same as running an older batch S9 with two boards (8THs), except silent. And they pull 2/3s the power of the older S9s as well.

Its design is probably unnecessary in a warehouse, but perfect for the living room.
The T9 is close, but it still uses dual fans. I wonder if the Avalons are quiet enough, but somehow doubt it. Someone told me 65db, which is 10db above the R4.

The fan on the R4 should be run at 100% by disconnecting the control wire, they are very quiet even at the max 3200rpm (i saw another (slower?) batch running max at 3000rpm).

Compare it with the useless A3 and tell me they were worth more spending resources than this. An Scrypt model using this same design would have probably been great as well.

I guess in the end you have to get a T9/S9 and put it inside a cooler box with holes and thermal insulated ducts...

Correct, they were for the last batch, not this batch we have in stock now.  But if you did not use it yet, just email us we can do something.

Anyone else have their Raspberry pi have to be restarted (unplugged re plugged) every 3 days or so randomly?

that was the fastest sellout i have ever seen.

I will give it a go and report back! much appreciated