Topic: [Fire] URGENT Rig shutdown just now with a flame, how to find fault ? - page 3. (Read 3167 times)
January 17, 2014, 02:58:14 PM
Oh ok got the VBE7 - program used to undervolt... I have sapphire trix on my system .. will that do ? and how much should I set VDDC to for undevolting 7950 and 280x ?
January 17, 2014, 02:38:47 PM
Then use one card at a time.
First of all, lower your target temperature from 80ºC to 70ºC on miner config
Load GPU-z and select the "Sensors" tab. Scroll down to see the VRM temperature. Then, load you miner software with intensity = 8 and start mining. Raise intensity bit by bit and check those temperatures!
Are you undervolting the cards? If not, do so with VBE7
First of all, lower your target temperature from 80ºC to 70ºC on miner config
Load GPU-z and select the "Sensors" tab. Scroll down to see the VRM temperature. Then, load you miner software with intensity = 8 and start mining. Raise intensity bit by bit and check those temperatures!
Are you undervolting the cards? If not, do so with VBE7
Actually I have all 3 cards running now. I was earlier overclocking the 7950 and that seemed to make an impact on the other 280xs hashrate as well. Weird.
I have not undervolted any of the cards. Now the cards are running at about 80% +- 5 fanspeed. And this time I have not overclocked the 7950.
I have GPU-z loaded now and had it earlier too. For one of the 280x it shows VDCC from 1.056 V to 1.044 V.
About the VRM I can not find that in GPU-z under sensors. All I see is voltages and fan speed, etc
Hashrates now are :
280x - 710 khps earlier was 750 khps (when 7950 was overclocked to E - 1020 M - 1420)
280x - 690 khps earlier was 750 khps (when 7950 was overclocked to E - 1020 M - 1420)
7950 - 560 khps earlier was 650 khps (when 7950 was overclocked to E - 1020 M - 1420)
So they are not running at full speed. About the temperature : They have always run @75 + ... right now at about 78-79 ish and I always have a fan blowing air on them.
Since my cards are not undervolted .. what do you mean by VBE7 ?
January 17, 2014, 02:20:32 PM
I lost a 6950 exactly like that due to poor ventilation of the VRM area
use one card at a time.
First of all, lower your target temperature from 80ºC to 70ºC. Set also the fans to at least 60 - 70%
On the miner config
"gpu-fan" : "60-90",
"temp-cutoff" : "78",
"temp-overheat" : "74",
"temp-target" : "70",
Load GPU-z and select the "Sensors" tab. Scroll down to see the VRM temperature. Then, load you miner software with intensity = 8 and start mining. Raise intensity and check those temperatures!
Are you undervolting the cards? If not, do so with VBE7
use one card at a time.
First of all, lower your target temperature from 80ºC to 70ºC. Set also the fans to at least 60 - 70%
On the miner config
"gpu-fan" : "60-90",
"temp-cutoff" : "78",
"temp-overheat" : "74",
"temp-target" : "70",
Load GPU-z and select the "Sensors" tab. Scroll down to see the VRM temperature. Then, load you miner software with intensity = 8 and start mining. Raise intensity and check those temperatures!
Are you undervolting the cards? If not, do so with VBE7
January 17, 2014, 02:20:11 PM
STOP! Shutdown the PC NOW
I did stop it then and removed the cards. Checked which one was smelling of carbon and plugged it back the other 2 which werent. They seem to be mining fine for now. What do you think is the problem ? Any idea ?
January 17, 2014, 02:17:10 PM
STOP! Shutdown the PC NOW
January 17, 2014, 12:27:00 PM
So this happened just now, I saw a flame near the graphics card for about a second or two (running 2 x 280x and 1 7950) and the rig shutdown. I have a 1250 W PSU. I tried smelling the wired for burnt cables but could not find any smell. However the burnt smell was on one of the 280x cards and subsided soon thereafter. This had happened once earlier too, but I thought that I was seeing things and a flame I did not expect. Cards were running near about 80 C temperature. And it would run fine before but I had a burnt cable problem on the PSU and am using different port now for the graphocs card supply
What do I test how do I go about this ? Should I continue to mine expecting that if I stop and restart it every 12 hours or so I will "get away" with this or should I completely stop ? Kindly advice.
I am not too technical a person but can look up things online.
Need urgent help.
UPDATE : Tried with the remaining (280x and 7950) cards after removing card from which burnt smell came for a bit. And seems to be running fine for now. So I am assuming it wasn't anything with mobo or psu perhaps ? But still no idea what to do with the other card (from which burnt smell came) and how to test it ?
What do I test how do I go about this ? Should I continue to mine expecting that if I stop and restart it every 12 hours or so I will "get away" with this or should I completely stop ? Kindly advice.
I am not too technical a person but can look up things online.
Need urgent help.
UPDATE : Tried with the remaining (280x and 7950) cards after removing card from which burnt smell came for a bit. And seems to be running fine for now. So I am assuming it wasn't anything with mobo or psu perhaps ? But still no idea what to do with the other card (from which burnt smell came) and how to test it ?
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