Antminer S7 with single DPS-1200FB PSU

[eretron]

Hello,

did anyone tried to power single S7 with this PSU, it is rated at 100A = 1200W 12V output on 220V network (I am from Europe so this is what I got at home).

S7 specs says it consumes 1210W from the wall, so it is quite close.

Maybe if I downclock it a bit it would be fine?  Anyone tried this?

Thanks in advance

[1715675276]

1715675276

[1715675276]

1715675276

[HagssFIN]

Hello,

did anyone tried to power single S7 with this PSU, it is rated at 100A = 1200W 12V output on 220V network (I am from Europe so this is what I got at home).

S7 specs says it consumes 1210W from the wall, so it is quite close.

Maybe if I downclock it a bit it would be fine?  Anyone tried this?

...

From bitmaintech.com:

S7 Specifications:
1. Hash Rate: 4.73 TH/s ±5%
2. Power Consumption: 1293W + 10% (at the wall, with APW3, 93% efficiency, 25C ambient temp)
3. Power Efficiency: 0.25 J/GH + 10% (at the wall, with APW3, 93% efficiency, 25°C ambient temp)
4. Rated Voltage: 11.60 ~13.00V
5. Chip quantity per unit: 135x BM1385
6. Dimensions: 301mm(L)*123mm(W)*155mm(H)
7. Cooling: 2x 12038 fan
8. Operating Temperature: 0 °C to 40 °C
9. Network Connection: Ethernet
10. Default Frequency: 700M

It is more like 1400+ W at the wall.

[eretron]

Hm, strange, I could swear it was 1200W, maybe I have looked at some earlier batch...

Oh well, that clears up a lot. Thanks for pointing that out.

[QuentinA]

You should downclock it a little so it uses 1300w and try it, server psus can take alot without any problem (still check for temperature to avoid fire hasard).

I ran a 1kw server psu at 1.3 for a few days non stop, it gets hot but works fine. It's back a 800w now and has been doing fine for 2 months

[sidehack]

I've got some running on DPS1200 on 208V, no problem. Not sure offhand which batches they are, but I tested a board prototype for a week with no issues on one of the 1293W models. I really like how Bitmain changed the design of the miner to make it cheaper to manufacture and more expensive to own and operate.

[Subw]

You can if you have real 0.25w version (earlier batches).
I run several B1s on ATX 1250w PSUs for months

[philipma1957]

downclock from freq 700 to freq 650

check all stats .

you should drop from 4700  to  4400  and you should use 1200 watts at the wall.


let us know your hw %  if it is under 0.0100  you are fine with the 650 clock.

set your fans to 45%  your rpms will be 3900 maybe 3700


 if your temps are under 60-62 for all three blades you are fine.

let us know if freq 650 and fans at 45%

work for you.