Topic: R9 280x 4Mh/s Mining Rig - page 5. (Read 21911 times)

speed to daaaaaaaaaaaaaaaaaaa moon

That's really awesome... 

Beautiful setup!!

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

how many watts total?

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

Since I knew people would ask... The frame is just 1inch square aluminum tube rived together with some flat / angled aluminum... stole some ideas from other people's rigs... total cost $50 plus $20 for a rivet gun I didn't own.

I decided to use my desktop MB / CPU / Memory and upgrade my main system with something new, so what is pictured in this rig is a:

Asus Maximus IV Extreme (has 12v GPU power on MB)
Sandybridge i7 processor
16GB Ram
Watercooled CPU

All of that is overkill, but I just pulled it from my desktop so meh...

Of interesting note, I had to use 16x to 16x risers on 2 of the slots or Windows wouldn't recognize the cards, I don't know why, but it is what it is.  1x to 16x risers on the other 3.

2 PSU's... 1 1200W and 1 1000W

And of course 5x Sapphire Toxic R9 280x  Main Specs:  TC=8193, MEM=1800, Engine=1100

As for length of time, I ran for 5 hours no problems with zero HW errors, I rebooted to remove killawatt voltage meter and post pics.

Unfortunately this speed does come with a price, the cards have to run at 1.256V  I can run at 765Kh/s per card at 1.2V if I lower mem to 1500 and engine to 1100.  This also lowers temps from high 70's to low 70's.

There are my secrets guys... took me weeks to tune these boys, but Toxics are best IMHO... now watch them go out of stock again.  

where can I buy that case?

sapphire toxic

Its heavily overclocked. Most cards memory limits them hitting 800s. Need to be clocked around 1800-1900.
Its not very efficent way, but surely put cards on its limits.

https://litecoin.info/Mining_hardware_comparison

i've seen ads for that rig holder or the frame or whatever.. damn that looks nice. gettin one now

Might get a hint from the 'sapphire' name across the top of the cards 




Very nice OP, very nice.

Cant get over 710 on wf3 even less on battlefield editions

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 write what is in this rug? Mobo psu cpu all of this.
Itz sooo beauty

what is your sets 

Would love to know your settings as well.  I have some Sapphire 280x cards on the way.
Thanks.

mmm shiny!

Cgminer config ? Gpu manufacturer?

Looks good. What are the temps like when you run it for longer than 4 minutes ?