I have found a slight underclock and a few less cores really makes the gear more efficient .
The power function is geometric so the math will always favour underclocking to some degree.
But, IMO, underclocking a TR is like detuning a Ferarri, it just doesn't seem right. Neither was
designed with efficiency in mind, just performance.
So far 26700 hash rate at 170 watts a mixed underclock
or 27600 hash rate at 223 watts stock settings.
temps are 71c on under clock
temps are 80c on stock.
26700 is about $1.38 a day
27600 is about $ 1.45 a day
24 x 170 more like 24 x 200 = 5 kwatts which means 50 cents at ten cent power
24 x 223 more like 24 x 250 = 6kwatts which means 60 cents at ten cent power.
it is a no brainer to run it at the under clock ⏰ I earn 88 cents a day vs 85 cents
plus gear is quieter and cooler 😎
the be quiet air cooler does the job
Been down clocking for an hour or 2.
gear was set at
freq 4000 volts 1.4 hash was 27600 watts were 223
freq 3700 volts 1.3 hash was 27100 watts were 205
freq 3500 volts 1.05 hash is 26200 watts are 127!!!!!
will run at this setting for a while now add you small cpu and chips set you go to 150 that is 3.6 watts at 10 cents = 36 cents unit is earning about 1.36
net is very close to a dollar a day.
now this is a costly build
I got a lot of deals to buy it
I had parts
I sold parts.
I lost 23000 xmr hash and some gpus
I get back 26100 xmr hash
power on the old gear was more then 1500 watts 4 gpus 4 cpus it mined at a loss
power on this gear is 150-160 watts 1 cpu mines no cpu mines it mines at a profit.
this is a one shot deal for me.
although I am really tempted to buy the big beast 3990x.
Just sell everything that mines to get it.
I did a youtube video which is loading really slow.
You can see the build.
And listen to it it is pretty much silent.
So At 150 watts 26200 hash = 175 hash a watt to be fair I have tried to get good numbers on down clock.
at 250 watts 27600 hash = 110 hash a watt to be fair I have not tried to get good numbers on over clock.
Sorry about loading time youtube is really slow with up load.
It is about 7 minutes long I am up to 94%
Build is finished other then adding some feet to the oak slab and a tiny bit of wire management.
https://www.youtube.com/watch?v=p4NwHJpyERQfinally
at $1 a day it would take what 3000 days or 5 +years to pay back ? i suppose you mine to hold and wait for stuff to rise. A tr hear or there to diversify cant be a bad thing but gpus give me more options like the raven fork or other things to mine , there are just not enough cpu coins out there to justify it imo. All my cpu rigs have gpus too, i say throw a few gpus on with the TR to maximize the rig power be damed, mine something you expect to skyrocket in the next few years, new forks etc whatever and just wait.
back in 2013 at one point i was doing that and i have 70k or more vertcoin and expcoin or something along with over 1000 ltc but i dumped my coins low when things crashes and my gear too. Im not doing that again
It was not 3k for me.
I sold off:
threadripper 1920x with mobo 6k hash. 250watts
Ryzen 5 3700x with mobo 6k hash. 125watts
Ryzen 5 3800x with mobo 7k hash. 125watts
19khash. 500watts
I have threadripper 3970x 27khash. 250watts. 4 parts purchased were:
3970x -------------------1900
aorus 500gb ssd --------- 130
Asus mobo trx40 -------- 450
be quiet cooler ---------- 90
total ---------------------- 2570 + 180 tax =.
$ 2750
77 discount on mobo
2673
160 discount on thread ripper
2513
60 discount on threadripper
2453
26 discount on aorus
2427
5 discount on be quiet cooler
2422 net
1422 from sale of 3 pc's\
1000 is true tax basis of this unit. not 3000
so for 1000.
I get newest thread ripper with 3 year warrranty
New mobo with 3 year warranty
New ssd with three year warranty
new air cooler that does cool unit off with 3 year warranty and fans are all that can break under 20 seconds to replace.
so I get 8k extra hash and -250 watts
that is 180 kwatts a month off power bill and my power now goes up to 20 cents for summer. so it means 36 a month power savings for 5 months = 180 certain savings so by oct 1st the 1000-180 = 820
and 150 days of 30 cents = 45 dollars. so by oct 1 820-45 = 775 out of pocket.
But that is all clever accounting legal and only applies to me due to trade in of old gear. if I held the coin from the gear sales and converted it to cash I would have 1422 on oct 1. vs -775 and the miner on oct 1
Is the miner worth 1422 + 775 = 2197 on oct 1. well a normal purchase now would be 2750. I think on oct 1 I can get 1800 for it.
so I would be down 400.00. with a state of the art pc and 2 years + 5 months warranty left on it.
Is it correct to do? maybe maybe not
I still have gpus mining.