Topic: My new mining rig - quad 7970 - Going for 3Gh/s - page 2. (Read 9702 times)

Cool Rig, hope you reach your goal. I just build 2 Rigs with 3*7970 each, mining ltc with scrypt at around 2200 each at their best clocks but right now i have them at 2000 each.

Nice setup,did you try reversing the top fans so that they push air on the cards rather than pulling air away? that should solve your heat problem

note : you will need 2500Rpm high performance top fans, not silent 1500rpm

Great looking rig congrats. Craftsmanship is excellent keep up the good work.

Ah, nothing too big really. Here's a pic, and what I've got done so far.





I'm just waiting on two 3x140 radiators, they should be delivered tomorrow. I decided 3x120 wasn't big enough 

So what IS coming next? (From teaser pic in post #79) 

Really nice lookin setup.

Thanks!

Well, after not a whole lot of abuse the power supply failed! Mining would restart the computer instantly, unless I removed two cards...

A quick trip to microcenter resulted in a EVGA Supernova NEX1500, a stupid expensive power supply but worth every penny!



This PSU is USB connected and tells you all sorts of cool stuff like input voltage, wattage, amperage, as well as output voltages, currents, wattage and more. Would be really useful to those of you who pay for power!
This rig draws 1250W of input power at full tilt, enough to drop the 120V down to 115V or so!

I also replaced the shitty SSD with a cheap laptop drive.





In case you were wondering what a Gigabyte 7970 Ghz looks like under that honkin' cooler. I pulled this one apart to replace the thermal compound, it runs a little cooler with arctic silver now. 

The VRAM heatsink is a place of aluminum 0.050" thick. It is not attached to the heatpipes in any decent way, and on top of that it's warped all to hell and back. These cards are straight garbage! I have never in my life seen such a crappy heatsink design. I will never be buying gigabyte stuff again after this experience.

And a little teaser of what's coming next 

wow thats so awesome nice work man!

ElGabo - Thanks! I do have a lot of time into this thing though you can't see it here.



That took a while, but everything fit the first time I cut it, so in the end it was worth it

Schland - Thanks! I do plan to sell these eventually once I get it set up and working well. I could make custom cases, somewhat like mountainmods, but a whole lot less universal looking. I figure the price would be around that of a nice mid range atx case, think they would sell?

Msaadw - Sure, here you go

GIGABYTE G1.Sniper 3 LGA 1155 Intel Z77 HDMI SATA 6Gb/s USB 3.0 Extended ATX Intel Motherboard
GIGABYTE GV-R797TO-3GD Radeon HD 7970 GHz Edition 3GB 384-bit GDDR5 PCI Express 3.0 x16 HDCP Ready CrossFireX Support Video ...
Intel Core i3-3220 Ivy Bridge 3.3GHz LGA 1155 55W Dual-Core Desktop Processor ...
Team Xtreem Dark 16GB (4 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model TXD316G1600HC9QC-D
Rosewill LIGHTNING-1300 1300W Continuous@50°C,80 PLUS GOLD Certified,Pipe-rock Modular Design,Single +12V Rail,ATX12V v2.3/EPS12V ...

If all you care about is bitcoins then this build is overkill on mobo, ram, and CPU. Altcoins might be another story though 

The HDD is a cheap SSD I had around for spare parts. It's a Corsair Nova, and it's the biggest piece of crap I've ever seen. I can not run as a bitcoin node because the blockchain corrupts before I download it all. Not the first problem I've had with corsair SSDs, but I do have many many computers running with OCZ Vertex 3's, some even striped. 1MB/s read/writes are awesome! I recommend them, big time!

can you share complete specs of your mining rig for reference ?

Nice case or stand! You should sell these if you can manufacture these at lower costs, this is potentially more profitable than mining.

Nice rig. You spent a lot of time I think...

Looks nice

Nice rig, looks like my old one with 5970's but I am shifting the cards as I am moving and won't have much space and I won't be the bill payer on the electric so it would be rude for me to take all that juice and just be complicated.

Cgminer is faster. -V sets the vector count, -w sets the work size, 128 in that case. You should find the values that work best for your card online, the hardware comparison is a good place to start.

So then is cgminer faster or guiminer faster? Also can someone tell me what -v-w128 does?

Thanks

Thanks!

I've made my first .1 bitcoin mining today. Whooo! Three cards are still clocked down to 500mhz, and I'm still averaging ~2.0GH/s according to BTC!

And my cable risers were marked as shipped! No tracking number though, which is odd for ebay 

I'm also no longer a noobie, guess I might have to venture out into the big forums 

This is a very sweet looking set up. I am envy

that is a huge increase. x30 and im assuming you are saying litecoin will be harder again?