[Buying advice] S17 53TH or T17+ 58TH ?

[ovmega]

Hello,

I've searched and couldn't find an answer either online or on this board

I'm considering buying either an S17 53TH or a T17+ 58TH but I can't decided between the two.
Both seem to be using the same amount of power 2,350W

Low power mode is what I'm after, with lower fans, temps and power usage.
In theory, the T17+ should be the winner but I'm not sure since I don't have the information.

Can someone please let me know which one of them can be set to use the least amount of power? I'll be using custom firmware for undervolt, auto-tuning and fan control.

Thank you

[1715309751]

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[BitMaxz]

Based on the t17+ specs the hashrate of this unit is around 64Th/s with 3,200w and the s17 hashrate is around 53Th/s with 2,385w.

Check the whole specs of these units below

- S17 specs
- T17+ specs

So based on their specs s17 is a bit more power-efficient than t17+.

How about the price of these units and your Electricity rate?

If the price is the same and you have a free power source then choose t17+ or buy s17 if you are paying above $0.04kw/h.

[sidehack]

I believe the S17 has 144 chips to the T17's 132, which means that even at the same power budget the S17 chips could be run at a more efficient setpoint yielding a slightly higher overal hashrate.

[ovmega]

@ BitMaxz : Thank you for your reply.

Both the T17+ and the S17 are listed at the same price and with the same 2,350W power draw. Keyword: "listed".
Electricity isn't an issue right now but could be in the future. I was also leaning towards the T17+ but again, my goal is to run them at their lowest possible speed with the least amount of power draw.

I did have one S9 a few years back and I remember I could set it at low as I wanted even at 1TH with the BRAIINS OS. Would the same hold true for these models also?

@sidehack : Thank you for your reply. So at low power modes, the S17 would be faster than the T17+?



Whichever I choose, they will have their chip radiators re-pasted so they don't fall off, an issue that plagued both models from what I've read.

[ovmega]

After much research(these topics are new to me), I've settled on the S17 Pro since the goal is energy efficiency, this seemed to fit well with my needs.

Thank you again for all your help, hopefully I'll finally have a working ASIC

[sidehack]

The BM1397 chips used in S/T17 aren't as stable at low speeds as the BM1387 used in S/T9 series were. You might have trouble with losing hashing efficiency clocking under around 400MHz (about 40TH with the S17 Pro, I think) but with an aftermarket auto-tuning firmware on there, finding a suitable setpoint should be pretty straightforward.

[MaXGosto]

Do you use racks for this? I'm thinking to buy rack here https://sysracks.com/

[ovmega]

Got the S17 Pro, tuned with Braiins OS. Tried lots of other firmwares, this was the only one that did what I needed as in stable low power, heat & noise and fan control.

Details:
36TH/s
1,4kW
89C highest chip temp
55C highest board temp
55% fans

Looking online, these are within spec. As far as I'm concerned, it's behaving as expected.

Please let me know if something is wrong with the above. Until then, I'm enjoying finally having a working ASIC miner. Maybe next year I'll get another one.

Cheers!