My First Open Air Rig - 4x 6970 1x 6950 - 2gh/s - "The Mine Cart"

CrazyGuy

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Quote from: ?? on ??

Quote from: CrazyGuy on September 16, 2011, 10:13:25 PM

I should be able to pull a bit more out of the 5970 but I'm going to let it burn in at stock core clock for a couple days.

You rates are quite low.
You should be able to pull ~336 MH/s at stock cloks and
~ 371 MH/s @800/300 for each core on the 5970.

Yeh, both cores are under 60 degrees so I figured I could push it a bit more. Problem is, I'm hovering right under max draw on my PSU. I have the minecart switched off at the moment and I'm selling a few of the cards in the marketplace threads.

worldinacoin

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Kinda low yes, but there is some real mechanical engineering ingenuity

CrazyGuy

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Quote from: worldinacoin on September 13, 2011, 05:17:39 AM

The max I dare to put in an rig is only 3 GPU which I find it very hot. How do you keep that thing cool within limits?

I think the box fan is helping a bit. All cards are memory underclocked as low as they go without a bios flash.
New Specs:
1x 6950
3x 6970
1x 5970

I should be able to pull a bit more out of the 5970 but I'm going to let it burn in at stock core clock for a couple days.

Here's the video I promised to post.
http://youtu.be/fqqcdfEYN6Q

worldinacoin

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The max I dare to put in an rig is only 3 GPU which I find it very hot. How do you keep that thing cool within limits?

deslok

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It's all about the game, and how you play it

i love the idea but i'm affriad you're going to melt the milkcrate!

CrazyGuy

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Haha, I'll upload some more pics tonight. Couple of rods going across the crate holding the cards up.

stryker

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Quote from: chungenhung on September 09, 2011, 02:05:12 PM

can you upload pictures of other views? I want to see how you are holding those cards up.

By the process of "jamming em in" I think Grin

It is rather a "novel" design though.... very fitting with the homer avatar

chungenhung

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can you upload pictures of other views? I want to see how you are holding those cards up.

CrazyGuy

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Activity: 1973

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"The Mine Cart"

I would like to share my first open air rig with you guys. Built inside of a storage crate, all cards are running cool at 2 gh/s total. 6970s clocked at 920/795 and 6950 at 820/700. All 100% fan speed with a little help from a rear box fan.

Specs:

Case: Storage crate!
Motherboard: Gigabyte AM3+ UD3
CPU: AMD Athlon II Dual core 2.8 ghz
Memory: 2gb DDR3 memory
PSU: 1200 Watt Corsair ATX
OS: Linuxcoin running off of 4gb usb stick
GPU: 4x 6970 (920/795 clocks) 1x 6950 (820/700 clocks)

I was hoping to get the lonely 6950 out left in but my power supply couldn't handle the draw. I may try playing around with the card bios this weekend to get past the 125mhz mem underclock limits of the 6900 series cards and bring my power usage down.

Topic: My First Open Air Rig - 4x 6970 1x 6950 - 2gh/s - "The Mine Cart" (Read 2533 times)