R9 280x 4Mh/s Mining Rig

[Treggar]

how were you able to get all the gpu's it seems everywhere I look for cards they have a max of 1/customer

shopblt.com doesn't have limits.  I ordered a batch of them that are due to ship on Friday.

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[CryptoMine]

Beautiful setup!!

[penambang]

That's really awesome... 

[jorneyflair]

speed to daaaaaaaaaaaaaaaaaaa moon

[flasheart]

where can I buy that case?

http://www.openrigs.com


~BCX~

I seen the openrigs cases before I built mine.. I decided to place the rear aluminum bar low as to support the underside of the GPU's.  I also riveted instead of using connectors.

That said I probably would have purchased from openrigs but I didn't want to wait for shipping.

[kronicblazer]

I can get my gigabyte r9 280s to around 740 each with no OC.

But, this is good news if he shares his cgminer details and OC settings!

Can you share the settings you are using?  My gigabyte 280x is not OC as well, but I am only getting 650-700kh avg.

[Coindgr]

[/quote]

how many watts total?
[/quote]

[yorich]

where can I buy that case?

http://www.openrigs.com


~BCX~

How long did it take for you to get your case from them?  I've been waiting a week and a half for 2 gorginas.

[yorich]

how were you able to get all the gpu's it seems everywhere I look for cards they have a max of 1/customer

Newegg has a deal on r9 290's, buy two XFX cards for 949.  I just bought 6 for 3100$

[Kilter]

GREAT¡¡¡¡

I have two R9 280X OC DUAL-X at 600 kh/s each

power 1100 w +80 plus

8 GB RAM

 -I 13 -g 2 -w 256 --thread-concurrency 8192 --gpu-powertune 20 --gpu-engine 1010  --gpu-memclock 1495  --auto-fan --temp-target 80 --temp-cutoff 90


I am selling it on ebay.

I want to buy  7950 x4

and mount them here
http://i42.tinypic.com/2dgoozd.jpg

I think it will be more efficient in electric costs .

[yorich]

GREAT¡¡¡¡

I have two R9 280X OC DUAL-X at 600 kh/s each

power 1100 w +80 plus

8 GB RAM

 -I 13 -g 2 -w 256 --thread-concurrency 8192 --gpu-powertune 20 --gpu-engine 1010  --gpu-memclock 1495  --auto-fan --temp-target 80 --temp-cutoff 90


I am selling it on ebay.

I want to buy  7950 x4

and mount them here


I think it will be more efficient in electric costs .

You got issues.  I have 3x r9 280x's, averaging 715-730Khps, 4G ram, and I'm only using 850-900 Watts, with slight overclocks.

[Kilter]

You got issues.  I have 3x r9 280x's, averaging 715-730Khps, 4G ram, and I'm only using 850-900 Watts, with slight overclocks.

thx , I'll check everything

I have the drivers 13.11 beta and sdk 2.9

What overlock you done?

[Amph]

1100 core at least, or you won't reach 750 ever

[ADTQoo]

reserved

[azurex]

GREAT¡¡¡¡

I have two R9 280X OC DUAL-X at 600 kh/s each

power 1100 w +80 plus

8 GB RAM

 -I 13 -g 2 -w 256 --thread-concurrency 8192 --gpu-powertune 20 --gpu-engine 1010  --gpu-memclock 1495  --auto-fan --temp-target 80 --temp-cutoff 90


I am selling it on ebay.

I want to buy  7950 x4

and mount them here
http://i42.tinypic.com/2dgoozd.jpg

I think it will be more efficient in electric costs .

You should just change the gpu-memclock to 1500 and keep the cards. It will pop up to 700+ @ 1500.

[madjules007]

Interested in your total watt usage as well. When I saw your topic last week I pre-ordered 4 Toxics, but then started doubting if I could run 4 of them on the 1200W Corsair PSU that I already had, after reading the heavy load usage figures in several reviews. Eventually went for 4 x Dual-X, only got 2 installed at the moment because I'm waiting for my riser cables, pulling 615W at the moment for the system getting 750kh/s on each card. Seems I'll safely make it under the 1200W anyway.

[rocketron]

Lovely setup! What monitor program is that ?

[Kergekoin]

Interested in your total watt usage as well. When I saw your topic last week I pre-ordered 4 Toxics, but then started doubting if I could run 4 of them on the 1200W Corsair PSU that I already had, after reading the heavy load usage figures in several reviews. Eventually went for 4 x Dual-X, only got 2 installed at the moment because I'm waiting for my riser cables, pulling 615W at the moment for the system getting 750kh/s on each card. Seems I'll safely make it under the 1200W anyway.

Based on my rig readings with a 90% efficent PSU.

4x 280x @ 1080/1500 1125mv = 1190W from the wall. 750-755khs per card.
4x 280x @ 1030/1500 1075mv = 1050W from the wall. 715-720khs per card.
4x 280x @ 1000/1500 1037mv= 970W from  the wall. 695-705khs per card.

I assume he runs 800khs per card @ around 1160/1800 1120-1125mv. This should pull approximately 1550-1650w from the wall.

[DonQuijote]

what 280x?

[Jsnow]

Nice settings man!

Atm I'm running 2x Sapphire R9 280x at ~705 Kh each

I bought a 3rd one and waiting for it to arrive.

My PSU actually is a Corsair AX 860W 80 Plus Platinum....I'll be able to run the 3x Sapphire R9 280x with this one? Without overclocking of course.