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Author Topic: OFFICIAL CGMINER mining software thread for linux/win/osx/mips/arm/r-pi 4.9.2  (Read 4815261 times)
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Richy_T
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April 16, 2013, 07:52:56 PM
 #9541

i have a problem with my gigabyte 7950 rig. clocked at 1150/1400 i get about 610 kH/s (LTC) -> thats ok! the problem is the generated heat of the first one in the main pcie slot. while at all other 7950's the fans spins with about 2200 rpm to hold a target of 75°C, the first one runs with 3600 rpm (100%) and can't get below 77°C. same happens, when i use a card from another slot.
any ideas?

win 7 64-bit (dedicated rig, no other software installed than drivers, winrar, realvnc and trixx)
amd driver 13.1
sdk 2.8
cgminer 2.11.4
no display plugged in, no dummyplugs

thanks!

Poor contact between the heatsink and GPU?

I'm assuming you're not running a tower? I was having "heat rising" issues for a while.

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April 16, 2013, 07:58:16 PM
 #9542

i have a problem with my gigabyte 7950 rig. clocked at 1150/1400 i get about 610 kH/s (LTC) -> thats ok! the problem is the generated heat of the first one in the main pcie slot. while at all other 7950's the fans spins with about 2200 rpm to hold a target of 75°C, the first one runs with 3600 rpm (100%) and can't get below 77°C. same happens, when i use a card from another slot.
any ideas?

win 7 64-bit (dedicated rig, no other software installed than drivers, winrar, realvnc and trixx)
amd driver 13.1
sdk 2.8
cgminer 2.11.4
no display plugged in, no dummyplugs

thanks!
I noticed the same thing with my dual GPU system. Now that I'm only running one GPU in it, I can't even hear the fan anymore.

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April 16, 2013, 08:04:37 PM
 #9543

i have a problem with my gigabyte 7950 rig. clocked at 1150/1400 i get about 610 kH/s (LTC) -> thats ok! the problem is the generated heat of the first one in the main pcie slot. while at all other 7950's the fans spins with about 2200 rpm to hold a target of 75°C, the first one runs with 3600 rpm (100%) and can't get below 77°C. same happens, when i use a card from another slot.
any ideas?

win 7 64-bit (dedicated rig, no other software installed than drivers, winrar, realvnc and trixx)
amd driver 13.1
sdk 2.8
cgminer 2.11.4
no display plugged in, no dummyplugs

thanks!

Poor contact between the heatsink and GPU?

I'm assuming you're not running a tower? I was having "heat rising" issues for a while.
the heat problem is in the first pcie slot only! it doesn't matter which of the 5 7950 is in pcie slot 1, everyone gets hot while in every other slot they run "cool".
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April 16, 2013, 08:14:44 PM
 #9544

Either airflow or, perhaps more likely, a heat source near slot 1. On my board, the CPU is right next to slot 1.

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April 16, 2013, 08:30:59 PM
 #9545

Either airflow or, perhaps more likely, a heat source near slot 1. On my board, the CPU is right next to slot 1.
i'm using riser cables. all cards have the same spacing to each other and get the same air.
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April 16, 2013, 08:58:19 PM
 #9546

Quite a simple question. What is the way to configure and run cgminer so that gpu 0 will work with pool 0 and gpu 1 with pool 1, but not both gpus with the same pool? Preferably command line configuration.

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April 16, 2013, 09:16:44 PM
 #9547

Quite a simple question. What is the way to configure and run cgminer so that gpu 0 will work with pool 0 and gpu 1 with pool 1, but not both gpus with the same pool? Preferably command line configuration.
Cannot.

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April 16, 2013, 09:40:28 PM
 #9548

Quite a simple question. What is the way to configure and run cgminer so that gpu 0 will work with pool 0 and gpu 1 with pool 1, but not both gpus with the same pool? Preferably command line configuration.

If your hardware supports IOMMU, you could theoretically create two Xen VMs, assign a single gpu to each VM, and run cgminer in each VM with separate pool addresses.

Google it if you care enough to try it, but it's probably more trouble than it's worth. ;-)
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April 16, 2013, 09:41:06 PM
 #9549

I think you can run multiple instances of cgminer and have a different pool for each. Just disable whatever GPU is supposed to be going to the other pool.

Or you could do what I do when I need to mine a little on another pool for whatever reason, disable the GPU and run the miner directly.

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April 16, 2013, 10:30:26 PM
 #9550

additionally: cgminer "freezes" (cannot even quit it with Q, have to close the windows clicking on the X) once I switch users on windows 8 Sad

Don't switch users.  Or if you do stop CGMiner and then reopen it in the other user account.

ouch, can't do this at all Sad

no way around this?

I've never used Win8.  But in WinXP/7 when you switch users the background user looses access to the GPU since the foreground desktop has it.

Search through this thread and you'll see it talked about several times.

poclbm can handle it properly: it keeps mining even when i'm logged in with different users :|
is there a way to achieve the same using cgminer? :/

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April 16, 2013, 10:35:10 PM
 #9551

i have a problem with my gigabyte 7950 rig. clocked at 1150/1400 i get about 610 kH/s (LTC) -> thats ok! the problem is the generated heat of the first one in the main pcie slot. while at all other 7950's the fans spins with about 2200 rpm to hold a target of 75°C, the first one runs with 3600 rpm (100%) and can't get below 77°C. same happens, when i use a card from another slot.
any ideas?


Are you saying whatever card is in the first slot gets hotter?  I had problems with the cards running hot, so I stuck a small fan to blow right on the card (at the back of the computer, blowing air 90 degrees from the MB).  The air it blows ends up in the front part of the case where it leaves.  The fan is about 12" in size and blows more air than typical case fans, but is not much noisier than such, just something from the local department store.  It dropped the temperature of one card that could barely cool itself (fan runs almost on max) by 8C and now I don't hear this jet engine sound  Smiley.  Also means the tower has no side panel... but oh well.
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April 16, 2013, 10:41:04 PM
 #9552

Quote
Are you saying whatever card is in the first slot gets hotter?
exactly
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April 16, 2013, 10:57:34 PM
 #9553

additionally: cgminer "freezes" (cannot even quit it with Q, have to close the windows clicking on the X) once I switch users on windows 8 Sad

Don't switch users.  Or if you do stop CGMiner and then reopen it in the other user account.

ouch, can't do this at all Sad

no way around this?

I've never used Win8.  But in WinXP/7 when you switch users the background user looses access to the GPU since the foreground desktop has it.

Search through this thread and you'll see it talked about several times.

poclbm can handle it properly: it keeps mining even when i'm logged in with different users :|
is there a way to achieve the same using cgminer? :/
poclbm doesn't monitor temperature and fanspeeds, that's why it can do it. Feel free to disable the monitoring for it to work with --no-adl

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April 16, 2013, 10:58:50 PM
 #9554

Quite a simple question. What is the way to configure and run cgminer so that gpu 0 will work with pool 0 and gpu 1 with pool 1, but not both gpus with the same pool? Preferably command line configuration.

If your hardware supports IOMMU, you could theoretically create two Xen VMs, assign a single gpu to each VM, and run cgminer in each VM with separate pool addresses.

Google it if you care enough to try it, but it's probably more trouble than it's worth. ;-)

Run 2 copies of cgminer with -d ...

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April 16, 2013, 11:19:42 PM
 #9555

Here's an interesting data point. Since my server went down for a few days, there were stats on the direct download links that JWU42 kindly put up showing quite a few downloads so I thought I should check how many downloads my server was getting. It turns out that version 2.11.4 alone (in its various forms) has had 80,000 downloads and 80% of those were for the windows binary.

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April 16, 2013, 11:33:43 PM
 #9556

I like linux n everything but windows is just the OS to use, imo and to my preference, it does it all plus better support on all things, e.g. palemoon x64 is not made for linux, amd drivers imo are horrible under linux. Some might disagree but I understand that unix users love their os too. Windows7 x64 for me for a long time.
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April 16, 2013, 11:40:03 PM
 #9557

Oh I'm not surprised windows is the more common download. It also doesn't take into account people getting cgminer from elsewhere as it is in linux distribution repositories that don't need to necessarily download from my server, and people getting source from git, so I think 80% is an overestimate for windows. Windows does have certain advantages with other overclocking tools etc. while linux has other advantages (as I've said in the FAQ too). My main point was to show how much it's being downloaded now and the rate of rise is quite dramatic of late, explaining why we're supporting all the same questions from scratch again that we've been answering for almost 2 years now.

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April 16, 2013, 11:44:57 PM
 #9558

My mining machine is my gaming machine otherwise I'd be Linux 100%

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April 17, 2013, 12:37:20 AM
 #9559

I have a question (BTW, thanks for keeping cgminer updated, you are a hero :3)
Just got my new 7870, and the mining hardware charts on the wiki here: https://en.bitcoin.it/wiki/Mining_Hardware_Comparison
shows that hash rates can be from about 480-520, and I'm getting ~420 hash rate.

My settings: -o http://btcguild.com:8332 -u <my username> -p <my password> --gpu-memclock 1000-1300 -I 9 --gpu-engine 1100-1200 --temp-overheat 85 --temp-target 80

is there something I'm doing wrong here?  I would really like to see another 60-100 hashes/s out of it, because my old card (that I didn't get for mining) hashed at that rate, lol.  What settings should I change?  How could I improve here?  It is a dedicated server, so I literally NEVER use the GPU for anything BUT mining.  Help would be appreciated, no hurry though, this is not an emergency as it is working Smiley
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April 17, 2013, 01:36:31 AM
 #9560

SCRYPT-README

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Help keep Bitcoin secure by mining on pools with Stratum, the best protocol to mine Bitcoins with ASIC hardware
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