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Author Topic: Linux wont recognize my Sapphire 7970 Vapor-X anymore  (Read 1056 times)
bobben2 (OP)
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February 02, 2015, 06:57:43 PM
 #1

This card was sitting in a rig with 2 other R9 280X cards running sgminer 5 under Ubuntu 12.04 when suddenly the
miner hung and top command revealed  Xorg at 99% cpu.  Driver problem, I thought and rebooted the rig.
But Ubuntu refused to boot up.   I took the card out and inserted into another rig.  This time the machine booted
but refused to start X.  Stock driver under 12.04.
I took the card out and into a Windows 7 machine.  This machine booted no problem and I was able to start sgminer.
Now, however, I am not able to adjust core or memory frequency thru sgminer, only fan % is adjustable. 
I am able to adjust these parms from Sapphire Trixx, however.
Anyone has a clue what is going down here?




Fellow miners, get your thens and thans in order and help other forum readers understand what you are writing. Remember the grammar basics:  B larger THAN A (comparator operator). If something THEN ....
Litejavichu
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February 03, 2015, 06:57:25 AM
 #2

Damaged card.
Remove the cooling system and looks electrolytic capacitors(16v). look If anyone is inclined or has combustion residues at its base. Also look at the R392-393 resistors or others that are around the power inputs . If it is difficult for you, take it to an electronic repairs. It is a low cost repair.

Your card works now because r392-393 resistors are not completely burned.
I had the same problem.


280x is under current manufacturer's warranty.  send service technical assistance

bobben2 (OP)
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February 03, 2015, 04:23:05 PM
 #3

Thanks for the tip.
The card was not broken.
I reverted back to kernel version 3.2.0-72 from 3.2.0-74 and reinstalled the stock driver.
And voila, the card is now working again and sgminer is hashing away.
I have had instabilities with kernel version 3.2.0-74 and higher in another rig, and this
strengthens my belief that something was broken in kernel version 3.2.0-74 and higher.

Fellow miners, get your thens and thans in order and help other forum readers understand what you are writing. Remember the grammar basics:  B larger THAN A (comparator operator). If something THEN ....
Litejavichu
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February 03, 2015, 04:39:46 PM
 #4

I'm happy for you Smiley
The symptoms are of a power failure, but perhaps with ubuntu kernel  gives a similar failure.
happy mining Grin

bobben2 (OP)
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February 03, 2015, 08:08:51 PM
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I was thinking power failure, too.
However, the original 3-card rig was drawing 460Watts at the wall thru a Corsair 750W rated PSU so I think
I had good margin.
Now the card is sitting alone in a spare rig to see if it runs stably overnight.
Thanks again for tipping about the caps and possible power issue.

Fellow miners, get your thens and thans in order and help other forum readers understand what you are writing. Remember the grammar basics:  B larger THAN A (comparator operator). If something THEN ....
Litejavichu
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February 03, 2015, 08:52:02 PM
 #6

I was thinking power failure, too.
However, the original 3-card rig was drawing 460Watts at the wall thru a Corsair 750W rated PSU so I think
I had good margin.
Now the card is sitting alone in a spare rig to see if it runs stably overnight.
Thanks again for tipping about the caps and possible power issue.
Smiley

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