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Topic: Miner Issues - Please Help (Read 669 times)
cryptopi
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Want some pi with that?
Miner Issues - Please Help
July 26, 2013, 06:43:56 PM
Last edit: July 26, 2013, 07:04:57 PM by cryptopi
#1
I recently built a rig with:
rosewill 1300 watt PSU -
http://www.amazon.com/Rosewill-Certified-ATX12V-EPS12V-LIGHTNING-1300/dp/B0057JFOKU
gigabyte ultra durable motherboard
4 sapphire vapor x 7950 GPUs -
http://www.amazon.com/Sapphire-DL-DVI-I-SL-DVI-D-PCI-Express-11196-09-40G/dp/B009MML1UA/ref=sr_1_1?ie=UTF8&qid=1373516838&sr=8-1&keywords=sapphire+7950
i7 3770k processor -
http://www.amazon.com/Intel-i7-3770K-Quad-Core-Processor-Cache/dp/B007SZ0EOW/ref=sr_1_1?s=electronics&ie=UTF8&qid=1373517257&sr=1-1&keywords=i7+3770k
16GB corsair vengeance RAM -
http://www.amazon.com/Corsair-Vengeance-Desktop-Memory-CMZ16GX3M2A1600C10/dp/B006EWUO22
4 powered riser cables (3 16x to 16x and 1 1x to 16x)
western digital 500 GB HDD
windows 8 64 bit
a milk crate case
To start it out, I decided to only use two of the GPUs just to make sure that it worked. After some fiddling (plugging in monitors, etc.) I got the two 7950s to hash away in cgminer at intensity 20 at roughly 630-640 mhash each. Then I decided that I wanted another GPU so I shut the rig down. I then used a 16x to 16x riser cable and plugged another 7950 into a 16x PCI slot on the motherbaord. Then I plugged in the necessary 2x8 pin connectors to give the card power and the molex connector into the PCI riser cable. Then when I turned on the compter on, it did not even recognize the card. After I restarted the card, it finally did recognize it but when I activated cgminer and tried to mine on it I only got roughly 50 mhash out of it or so. I have switched out riser cables and I have plenty of power so I know they are not the factors causing the error. I have also tried plugging in monitors to the cards and that did not work either.
Does anyone know what could be going wrong/have any suggestions? I have tried everything I could think of and would be extremely grateful for any assistance. Is there anything I should change in the BIOS?
Thank you
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Re: Miner Issues - Please Help
July 27, 2013, 02:46:54 PM
#2
Quote from: cryptopi on July 26, 2013, 06:43:56 PM
I recently built a rig with:
rosewill 1300 watt PSU -
http://www.amazon.com/Rosewill-Certified-ATX12V-EPS12V-LIGHTNING-1300/dp/B0057JFOKU
gigabyte ultra durable motherboard
4 sapphire vapor x 7950 GPUs -
http://www.amazon.com/Sapphire-DL-DVI-I-SL-DVI-D-PCI-Express-11196-09-40G/dp/B009MML1UA/ref=sr_1_1?ie=UTF8&qid=1373516838&sr=8-1&keywords=sapphire+7950
i7 3770k processor -
http://www.amazon.com/Intel-i7-3770K-Quad-Core-Processor-Cache/dp/B007SZ0EOW/ref=sr_1_1?s=electronics&ie=UTF8&qid=1373517257&sr=1-1&keywords=i7+3770k
16GB corsair vengeance RAM -
http://www.amazon.com/Corsair-Vengeance-Desktop-Memory-CMZ16GX3M2A1600C10/dp/B006EWUO22
4 powered riser cables (3 16x to 16x and 1 1x to 16x)
western digital 500 GB HDD
windows 8 64 bit
a milk crate case
To start it out, I decided to only use two of the GPUs just to make sure that it worked. After some fiddling (plugging in monitors, etc.) I got the two 7950s to hash away in cgminer at intensity 20 at roughly 630-640 mhash each. Then I decided that I wanted another GPU so I shut the rig down. I then used a 16x to 16x riser cable and plugged another 7950 into a 16x PCI slot on the motherbaord. Then I plugged in the necessary 2x8 pin connectors to give the card power and the molex connector into the PCI riser cable. Then when I turned on the compter on, it did not even recognize the card. After I restarted the card, it finally did recognize it but when I activated cgminer and tried to mine on it I only got roughly 50 mhash out of it or so. I have switched out riser cables and I have plenty of power so I know they are not the factors causing the error. I have also tried plugging in monitors to the cards and that did not work either.
Does anyone know what could be going wrong/have any suggestions? I have tried everything I could think of and would be extremely grateful for any assistance. Is there anything I should change in the BIOS?
Thank you
Have a look and see if the card is stuck at low clocks (power saving)
cryptopi
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Re: Miner Issues - Please Help
July 27, 2013, 03:04:19 PM
#3
Quote from: kuusj98 on July 27, 2013, 02:46:54 PM
Quote from: cryptopi on July 26, 2013, 06:43:56 PM
I recently built a rig with:
rosewill 1300 watt PSU -
http://www.amazon.com/Rosewill-Certified-ATX12V-EPS12V-LIGHTNING-1300/dp/B0057JFOKU
gigabyte ultra durable motherboard
4 sapphire vapor x 7950 GPUs -
http://www.amazon.com/Sapphire-DL-DVI-I-SL-DVI-D-PCI-Express-11196-09-40G/dp/B009MML1UA/ref=sr_1_1?ie=UTF8&qid=1373516838&sr=8-1&keywords=sapphire+7950
i7 3770k processor -
http://www.amazon.com/Intel-i7-3770K-Quad-Core-Processor-Cache/dp/B007SZ0EOW/ref=sr_1_1?s=electronics&ie=UTF8&qid=1373517257&sr=1-1&keywords=i7+3770k
16GB corsair vengeance RAM -
http://www.amazon.com/Corsair-Vengeance-Desktop-Memory-CMZ16GX3M2A1600C10/dp/B006EWUO22
4 powered riser cables (3 16x to 16x and 1 1x to 16x)
western digital 500 GB HDD
windows 8 64 bit
a milk crate case
To start it out, I decided to only use two of the GPUs just to make sure that it worked. After some fiddling (plugging in monitors, etc.) I got the two 7950s to hash away in cgminer at intensity 20 at roughly 630-640 mhash each. Then I decided that I wanted another GPU so I shut the rig down. I then used a 16x to 16x riser cable and plugged another 7950 into a 16x PCI slot on the motherbaord. Then I plugged in the necessary 2x8 pin connectors to give the card power and the molex connector into the PCI riser cable. Then when I turned on the compter on, it did not even recognize the card. After I restarted the card, it finally did recognize it but when I activated cgminer and tried to mine on it I only got roughly 50 mhash out of it or so. I have switched out riser cables and I have plenty of power so I know they are not the factors causing the error. I have also tried plugging in monitors to the cards and that did not work either.
Does anyone know what could be going wrong/have any suggestions? I have tried everything I could think of and would be extremely grateful for any assistance. Is there anything I should change in the BIOS?
Thank you
Have a look and see if the card is stuck at low clocks (power saving)
I already changed the clocks several times - overclocked it, set it to stock clocks, and underclocked it. None of those made it work.
Thanks for the reply though
www.hosterbox.com
- really good web hosting (accepts bitcoins)
(disclaimer - I am not affiliated with hosterbox in any way)
mccminer
Member
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Activity: 88
Merit: 10
Re: Miner Issues - Please Help
August 02, 2013, 12:59:08 PM
#4
Windows or Linux?
Disregard....I see now that it's Win8. Unfortunately all of my experience is on Linux, so I'm not sure I have much to contribute now.
Zanatos666
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Activity: 280
Merit: 250
Sometimes man, just sometimes.....
Re: Miner Issues - Please Help
August 02, 2013, 09:22:11 PM
#5
What miner are you using and what are your settings?
Squiggly letters, written really fast, with a couple of dots for good measure.
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