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Thread: Ubuntu won't boot with more than 4 GPU's
Post: Ubuntu won't boot with more than 4 GPU's
| I'm having an issue with a rig I'm building. I have followed the hashcat wiki to build Ubuntu server 14.04.4 and install the ATI 14.301.1001 driver. The driver installs fine and I can get up to 4 card... |
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flux |
General Help
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22,158 |
10-29-2014, 01:54 AM |
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Thread: Ubuntu won't boot with more than 4 GPU's
Post: RE: Ubuntu won't boot with more than 4 GPU's
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epixoip Wrote: (10-29-2014, 01:56 AM)
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hanging while loading X means the driver is stuck in iowait trying to communicate with a gpu that was there, but is now not there. the issue is most likely wi... |
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flux |
General Help
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12 |
22,158 |
10-29-2014, 02:00 AM |
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Thread: Ubuntu won't boot with more than 4 GPU's
Post: RE: Ubuntu won't boot with more than 4 GPU's
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epixoip Wrote: (10-29-2014, 02:05 AM)
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risers are notorious for causing intermittent problems and are almost always the source of any issues you are encountering.
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Sweet. Any opinion on the has... |
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flux |
General Help
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12 |
22,158 |
10-29-2014, 02:09 AM |
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Thread: Ubuntu won't boot with more than 4 GPU's
Post: RE: Ubuntu won't boot with more than 4 GPU's
| I managed to find some usb risers here locally tonight.
I've swapped out all 6 risers. Still no luck.
I can run any combination of 4 out of the 6 cards through oclHashcat's benchmark without an ... |
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flux |
General Help
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12 |
22,158 |
10-29-2014, 06:02 AM |
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Thread: Ubuntu won't boot with more than 4 GPU's
Post: RE: Ubuntu won't boot with more than 4 GPU's
| Hmmm okay.
I suppose that makes sense, the cards would draw considerably more power with the proper driver installed.
Last night I also went from 32bit to 64bit ubuntu.
Interestingly, now when I co... |
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flux |
General Help
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12 |
22,158 |
10-29-2014, 04:14 PM |
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Thread: Ubuntu won't boot with more than 4 GPU's
Post: RE: Ubuntu won't boot with more than 4 GPU's
| Okay.
So with 64bit Ubuntu I get a kernel panic whilst booting even with 2 cards plugged in if one of them is plugged in to the short pcie1x slot.
It seems that the system will never boot if any... |
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flux |
General Help
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12 |
22,158 |
10-29-2014, 07:01 PM |
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Thread: Ubuntu won't boot with more than 4 GPU's
Post: RE: Ubuntu won't boot with more than 4 GPU's
| More news.
I can get the system to boot with 6 cards on Ubuntu 14.04 server with 14.9 ati drivers.
However, it isn't stable. Hashcat runs but it seems to hang after a few minutes. At this poin... |
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flux |
General Help
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12 |
22,158 |
10-30-2014, 02:07 AM |
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Thread: Ubuntu won't boot with more than 4 GPU's
Post: RE: Ubuntu won't boot with more than 4 GPU's
| In the interest of helping others, I finally figured this out last week.
The issue was running PCIE1x simulatenously with 4x and 16x. The solution was to set a kernel boot option in grub of iommo=s... |
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flux |
General Help
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12 |
22,158 |
11-07-2014, 03:15 AM |
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Thread: 6x7970 - cards not running at full utilization
Post: 6x7970 - cards not running at full utilization
| Folks,
When testing my rig with mysql323 - I could get 97-99% utilization on each card.
I'm now working on some NTLM hashes (trying all upper /lower case with numbers and symbols) and the utiliz... |
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flux |
Old oclHashcat Support
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1 |
4,248 |
11-07-2014, 03:19 AM |
