Re: How much would it cost to build mining rig?

Hi bitcointalk, I want to build mining rig but I dont have the slightest idea how will i build one and how much would it cost me. Currently I have $ 2000. Would it suffice to build mining rig?

Yes, $2000 is probably about the average investment in mining equipment. With that amount you could build a nice rig of 4 to 6 cards and the associated support hardware. Much of the choice will come down to which coins you want to mine. Ethereum typically favors AMD and Equihash (Zcash) favors Nvidia, but they both can mine the other algorithm in a pinch.

Typical ETH build:

5 x RX580 8 GB - $310 ea or $1,550 total
1 x mobo with support for 5 or 6 GPUs - ~$120
1 x CPU (Intel G4400) - ~$50
1 x RAM 4 GB - ~ $30
1 x 120 GB SSD - ~$50
5 x PCIe USB risers - $50
1 x 1000 watts PSU - $150

This would put you right at your $2,000 budget. You would also need some type of frame to hold everything so you might need another $50 or so in materials.

A Zcash (Equihash) build would be much the same except you would pick some Nvidia cards such as the 1070's or perhaps the 1060's instead. The 1070's run around $500 so you could run 3 x of them and the 1060's go for $200 for the 3 GB version and $350 for the 6 GB version so you could run 5 or even 6x (if your motherboard supports it).

Very bad advice on the psu ... dont try to build a 5-6 RX580-8GB rigs with a 1000 watts rated psu !!!
rx480/580 cards in some stress test can pull over 200 watts easy during mining , mining with those cards are a real stress test / torture, with proper overclocking / undervolting the GPU/Mem you can reduce the wattage what those cards pull at the wall , but without any fine tune , those cards can pull over 200 watts each during mining!

Th only bad advice around here is yours. I have personal experience with many such builds and you can run 5 or even 6 RX580s off a 1000 watt PSU easily. If you are pulling over 200 watts per card you are definitely doing it wrong, and those benchmarks you linked are showing extreme cases, which again if you are running your mining rig like this you are doing it wrong. The guy is asking advice on how to build a rig right and mindlessly telling him to buy a larger PSU than he needs because you link some extreme un-optimized use case benchmark is foolish, especially when the price starts to rapidly climb past the 1000 watts range.

A RX 580 properly tuned meaning under-volt mod applied with clocks and voltages properly adjusted will draw 130 watts when mining ETH only and ~150 watts if dual mining. So for ETH only we could do 5 x 130 = 650 Watts, dual mining it would be 5 x 150 or 750 watts, well within reason. Even if he went 6 GPUs (which I only speced 5 for the AMD RX 580, the 6 was for Nvidia 1060's) it would be 780 and 900 watts respectively. While a 6 x RX580 dual mining configuration might be starting to push the PSU, it is still well under the maximum. However, a 6x RX580 just ETH only would be well within reason at 780 watts, or under the 80% load guideline I like to run around.

With Nvidia, the 1060's run under 100 watts each when mining ETH alone, so that would be 600 watts with 6 cards. And for his budget he could get 3 1070's which might be around 200 watts each, so again 600 watts. So tell me again where is the bad advice?