Take a look at this post for an idea of how most of my rigs are set up.

http://worldcoinforum.org/topic/116-post-pictures-of-your-worldcoin-mining-rigs-in-here/?p=1821

6 cards is easy to set up, 7 is more of a bitch. You could always try for 7 and use a USB WiFi adapter instead of PCI-e. Some boards will disable a PCI-e port when 6 ports are in use, so you may have to use a USB adapter anyways.

For the power supply, I would avoid that one or anything else Thermaltake. Personally I only use Seasonic (Silverstone 1500w in picture died powering 5 7950s and Silverstone won't honour the warranty) , you simply can't get any better than Seasonic units. Splitting smaller PSUs is the way to go.

Coolermaster has started using Seasonic to make their new V series power supplies. They are TOP notch, and based on Seasonic's latest KM3 platform. They are rated Gold, but are actually Platinum. I don;t know about Russia, but right now you can pick up a V1000 for 160$ after mail in rebate which is a smoking hot deal for that kind of quality.

Coolermaster (Seasonic) V1000 review: http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=344

For power, I've run 30A 240v circuits where I need. SOOOO much better than running power supplies on 120v.

Here's what my power supply distributions look like:

1x: Seasonic X1250w + 1x: Corsair CX 430 powering 6x 7970

1x: Seasonic Platinum 1000W + 1x: Seasonic X850 powering 7x 7970

2x: Coolermaster V1000 powering 7x 7950

1x: Seasonic X1250: 5x 7970

1x: Seasonic X1250: 4x 7970 + 1x 3930k for Primecoin

Plus I have a spare Seasonic X1250 for another rig that I'll be building eventually.


My 7950s average 680KH/s while pulling 300w @ 1.09v

My 7970s average 740KH/s while pulling 220w-250w @ 1v-1.1v.


If you're using powered risers, only power them with the primary PSU, same goes for motherboards with an extra PCI-e power connecter.

That board should be good for 6 single chip GPUs.

I have a MSI Z77-GD65 that will only work with 6 cards.

I also have an MSI Z77 MPower and an MSI Big Bang Xpower X58 that both run 7 7970s.

Thanks for the smooth transaction.

Cool, PMing now.

Vork, forgot to come back to this thread. I'll buy it for you right now if you'd like.

What kills you is that your efficiency is terrible. You're getting 900kh/s out of your two cards using 700w, while a single 7970 can easily run 740kh/s using only 220w-250w. Much easier to mine with those kinds of numbers.

Pretty nice! Are all the coupon units that will be shipped out blue? Def. would like mine to be.

Thanks once again for the great service, Kosmo! Pleasure dealing with you.

Hi kosmo, thanks for offering this discount. Just sent you a PM.

Thanks, will have to send cosmo a PM.

I purchased 6 USB erupters at the original 2BTC price. Am I eligible for any coupons to buy more?

Considering October delivery, is it still worth it for me to place an order today for a Jupiter or Saturn? Will I at the very least see ROI?

If no one comes through before I get home (tomorrow) I'll hook you up with the pre-order.

I'd say skip the 6 series and get some 7 series cards.

I've got 24 7970s and 7 7950s, and I sill find myself looking for deals on local classifieds for more. I'm addicted.

Confirm it's actually POSTing with a dvi or display port cable. If it is, I suspect your hdmi cable is faulty.

Awesome news, and great work! Very sensible changes which will help WDC come along.

Will update my client next time I'm home.

Gigabyte 7950 flashed to F43 BIOS?

Bingo.

I have to agree. Let's try 256 for a day or two. If that costs you more in server bandwidth, feel free to bump up the fee a little during the testing period.

Ah, right. That makes sense. I was thinking that if I managed to submit a 32 dif share, the next person's 32 dif share might be the block solver whereas with 512 dif shares neither of us would've managed to submit a share. Sorry about the misunderstanding.