2000w psu mining rig OK?

[greenlimit]

Hello,

Im complete beginner in mining (just used some nice hash, and cmd ...).

I found some used mining rig with :

8x RX470 8GB
8x PCI-e Risers
120GB SSD
Socket 1151
G3900 CPU
4gb DD3
2000W
+mining rig aluminum

I was in contact with him and he said that 100% rig get to 250mhs.
Price i think its ok 690€.

But the noise of this 2000W is quick big i think, is it possible to change it to 2 smallers psu?

Any advice would be helpful
Thank you very much in advance-

[philipma1957]

this is an alt coin question.

i asked mods to move it.


there are better psu choices for you.

[greenlimit]

Thanks. Hope anybody see that and helps

[Pendrak]

Hello,

Im complete beginner in mining (just used some nice hash, and cmd ...).

I found some used mining rig with :

8x RX470 8GB
8x PCI-e Risers
120GB SSD
Socket 1151
G3900 CPU
4gb DD3
2000W
+mining rig aluminum

I was in contact with him and he said that 100% rig get to 250mhs.
Price i think its ok 690€.

But the noise of this 2000W is quick big i think, is it possible to change it to 2 smallers psu?

Any advice would be helpful
Thank you very much in advance-

You can use 2 PSU without problems, all you need is use a 2 PSU cable for this, there is a lot of options on the net. Remember dont use more than 2 SATA-PCIexpress adapters per cable, if you can just use 1 cable per sata cable.

[greenlimit]

Hello,

Im complete beginner in mining (just used some nice hash, and cmd ...).

I found some used mining rig with :

8x RX470 8GB
8x PCI-e Risers
120GB SSD
Socket 1151
G3900 CPU
4gb DD3
2000W
+mining rig aluminum

I was in contact with him and he said that 100% rig get to 250mhs.
Price i think its ok 690€.

But the noise of this 2000W is quick big i think, is it possible to change it to 2 smallers psu?

Any advice would be helpful
Thank you very much in advance-

You can use 2 PSU without problems, all you need is use a 2 PSU cable for this, there is a lot of options on the net. Remember dont use more than 2 SATA-PCIexpress adapters per cable, if you can just use 1 cable per sata cable.

thank you very much! But what you think should i use rather 2 psu (how much W?) or i can go with the build 2000W?
Thanks

[Pendrak]

I use 2 G3 EVGA 1000 watts or 2 CORSAIR RM1000x for my rigs with 10 cards RX 580 8 GB, the key reside in the underclock and undervolt. They are working since 2017 without no problems.

[philipma1957]

Well until this is moved to alt coins @ pendrak

could you give the op a link to the cables needed.

[JayDDee]

I don't see a point point replacing the PSU for noise, unless it's the bad kind of noise.
Two new GPUs will double the cost of the rig and an 8 GPU rig is going to make a lot of noise regardless.
You would probably need some extra ventilation as well - more noise.

If noise is a concern maybe a mining rig isn't a good idea.

[adaseb]

Basically each of those GPUs uses maybe max 150 Watts or so. Hence 1200Watts for GPU power and maybe 100 Watts for everything else. You can find plenty of >1300Watts PSU out there. You can also use 2 PSUs at once if you already got them handy however you will need to make sure they are grounded together and that there won't be any feedback loops or you will destroy one or both of them.

Rember don't connect +12V from one PSU to another PSU. So if you are connecting it to the GPUs, make sure you don't mix the PSUs for each GPU. So if a GPU requires 2 PCIe connections, make sure those are both from the same PSU.

Don't know what your noise tolerance is but a 2000 Watt server PSU is very loud. You can't keep it in your bed room, in your garage or basement will be fine however.

[greenlimit]

Basically each of those GPUs uses maybe max 150 Watts or so. Hence 1200Watts for GPU power and maybe 100 Watts for everything else. You can find plenty of >1300Watts PSU out there. You can also use 2 PSUs at once if you already got them handy however you will need to make sure they are grounded together and that there won't be any feedback loops or you will destroy one or both of them.

Rember don't connect +12V from one PSU to another PSU. So if you are connecting it to the GPUs, make sure you don't mix the PSUs for each GPU. So if a GPU requires 2 PCIe connections, make sure those are both from the same PSU.

Don't know what your noise tolerance is but a 2000 Watt server PSU is very loud. You can't keep it in your bed room, in your garage or basement will be fine however.

Thank you very much!! Exactly, dude had this rig in the basement. I would have it in my living room (wont be always ON).

Will consider that for 2 psu.    What do you think about 1500W psu ? Is there any difference or negligible difference?

[rikuu]

Second hand server PSUs are very cheap, and they barely make any noise at low loads. I would consider buying 2 to 3 HP 1200FB-A to distribute the power draw and have them running at minimum fan speeds.

[Furryball]

If you know your way around graphics card tuning you can use software to reduce power consumptions or flash better BIOS to reduce power, but at the selling price of 690€ it's worth it if your electricity bill isn't high, depends on which country you are from.