Mining rig idea.

[joelthezombie15]

This is just an idea, i highly doubt i will have enough money to build this or anything, im just spit-balling here.

 

So, hows this for a mining rig?

 

http://pcpartpicker.com/user/joelthezombie15/saved/39eL

 

The 7990 is almost double the speed of a 290x (almost) so i figured its better than buying 2 290x's. also takes less power.

 

I also figured i dont need a special CPU but i figured i should get a half way decent one, idk, could i get an older cheaper one? 

 

I also figured since it would be so hot in there the hyper 212 would be a good idea, was this silly?

 

And, the ram is the same as the CPU, figured some was better than practically none, could i get away with less?

 

and the case was cheap and looked like it had decent enough airflow. 

 

Well? any idea? how would you improve it? Again, just an idea, not a planned build (would be nice to build though)

 

Also, litecoin and feathercoin mining is what would be the plan. 

[sanderdegrote]

The 7990 is almost double the speed of a 290x (almost) so i figured its better than buying 2 290x's. also takes less power.

It's far off from double. The 7990 uses less power but still.

2 x 290x  produces ~1600Kh/s for a price of $1198

1 x 7990  produces ~1150Kh/s for a price of $1025

[RuecanOnRails]

7990's aren't great mining cards not just for the heat. The bios on the card can make it generally difficulty to get a high hash, locking the cards at about 600 K/hash per core. Requiring a different and possibly custom Bios to get a high hashrate.

It's also a discontinued GPU not really available anywhere at this point.

 

Here's what you should look for when building a mining rig.

http://www.cryptobadger.com/2013/04/build-a-litecoin-mining-rig-hardware/

 

Cheapest, low power cpu available, and an open crate for a case.

[joelthezombie15]

It's far off from double. The 7990 uses less power but still.

2 x 290x  produces ~1600Kh/s for a price of $1198

1 x 7990  produces ~1150Kh/s for a price of $1025

where did you get 1150? the 7990 in that build gets 1300Kh/s and with spending less on the PSU it come to be about even if not cheaper to go with the 7990and you are only missing about 300kh/s from it.

[hehehehhehehehe]

Your looking at like 900kh/s per 290x.. So far from equal...

The optimal the k would be three 290 non x's.

[sanderdegrote]

where did you get 1150? the 7990 in that build gets 1300Kh/s and with spending less on the PSU it come to be about even if not cheaper to go with the 7990and you are only missing about 300kh/s from it.

https://litecoin.info/Mining_hardware_comparison 1150Kh/s is reasonable to me, I actually don' believe that people are getting 1500Kh/s with one 7990.