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Author Topic: 2x 5970 + 3x 5850 + 1x 6950 in 1 Rig!  (Read 1391 times)
Ban4na
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June 11, 2012, 09:25:40 PM
 #1

Hi.

I have a problem since my 5970s arrived.

I have a Gigabyte 990FXA UD7 mobo (6 pcie) and want to run different cards on it.

Currently i use Xubuntu 12.04 precise pangolin x64, Catalyst 11.11, CGminer 2.4.2

The cards i want to run from 1 rig are:

  • 2x 5970
  • 3x 5850
  • 1x 6950

So all 6 slots are filled up and also the driver max of 8 GPUs is not exceeded.

I managed to get either 2 5970s running or 3 5850s or 2 6950 (yes i had two; sold 1)

I have already seen some people mentioning this problem but have not found a solution in this forum or google.
When i put a 5850 to

Can someone help me get this running. I would like to keep using linux because its just easier to monitor and manage from distance (SSH) than a windows box. But i would also switch to Win if there is no other possible way.

Thanks in advance
~Ban4na

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swissmate
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June 12, 2012, 12:40:26 AM
 #2

I think we'll need more info to help you.
Why doesn't it work?

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Ban4na
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June 12, 2012, 12:57:55 PM
 #3

it only finds one card then:

Eg. 5970; 5970; 5850

Output of sudo aticonfig --lsa:
*Ati Radeon HD 5900 Series
 Ati Radeon HD 5900 Series

Output should be:
*Ati Radeon HD 5900 Series
 Ati Radeon HD 5900 Series
 Ati Radeon HD 5900 Series
 Ati Radeon HD 5900 Series
 Ati Radeon HD 5800 Series


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ssateneth
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June 14, 2012, 11:45:01 AM
 #4

So all 6 slots are filled up and also the driver max of 8 GPUs is not exceeded.

Your 5970s are 2 GPU's each as far as the driver is concerned, so you are in fact at the driver limit, but still not exceeding it.

Anyways, also noticed you are using linux, so unfortunately i cannot help you

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June 14, 2012, 11:48:12 AM
 #5

Go into your bios and increase your PCIE latency from 64 to 96.

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-ck
Ban4na
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June 14, 2012, 12:03:06 PM
 #6

haven't found that feature in the gigabyte BIOS unfortunately. Will have another look.

Thanks anyways.

~Ban4na

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June 22, 2012, 02:19:00 AM
 #7

Have you set up your xorg.conf?

Which SDK are you running?

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