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post #5091 of 22535
So, I need some advice here...

I finally got my TigerDirect order.

Though they messed up, and sent me 7970's instead of 7950's smile.gif
Not complaining.

I had originally ordered the XFX DD ones because they were the only ones in stock for a long time.
And yes, I know everyone says stay away from XFX... Like I said, only cards in stock at the time for a descent price.


So, here's my rather shabby setup...


2x XFX 7970's DD's
1x Powercolor 7950

I get around 1.5 Mh/s with all of them working.

Though I am having some SEVERE issues with heat.

All of them are in the 90's.
Even with really good airflow.


I am thinking about doing a milk-crate setup with the PCIe extenders and all, just thought I could get away with them being in my case.

Here's what it currently looks like, the XFX card that is mashed up against the Powercolor gets the hottest for obvious reasons.



(Xfire is disabled in CCC, was used to do some initial testing)


Clocks are (Left to right, XFX XFX PowerColor):

GPU: 925,925,850
MEM: 1375,1375,1250
VDC: 1.174,1.174,1.125
FANS: 100%

7970's get ~500Kh, 550 from room temp.
7950 stable at 500Kh.

Not sure what I should do to maintain hashrate, but lower temps to a safe level...
Don't want my cards melting or self destructing after I just got them.

If I have to, I'll do the milkcrate setup, just having to wait another week to get the supplies will be a bummer.

EDIT: Case door open, and window open... 0*F air is blowing directly into the computer...
Top to bottom temps: 72C, 96C, 77C

Also, I think all my cards are voltage locked, and don't want to risk bricking the card or voiding the warranty :/
Edited by Joannou1 - 12/13/13 at 9:16pm
post #5092 of 22535
Nice! You got 7970s instead of 7950s?? SCORE!!
post #5093 of 22535
Quote:
Originally Posted by Joannou1 View Post

So, I need some advice here...

I finally got my TigerDirect order.

Though they messed up, and sent me 7970's instead of 7950's smile.gif
Not complaining.

I had originally ordered the XFX DD ones because they were the only ones in stock for a long time.
And yes, I know everyone says stay away from XFX... Like I said, only cards in stock at the time for a descent price.


So, here's my rather shabby setup...


2x XFX 7970's DD's
1x Powercolor 7950

I get around 1.5 Mh/s with all of them working.

Though I am having some SEVERE issues with heat.

All of them are in the 90's.
Even with really good airflow.


I am thinking about doing a milk-crate setup with the PCIe extenders and all, just thought I could get away with them being in my case.

Here's what it currently looks like, the XFX card that is mashed up against the Powercolor gets the hottest for obvious reasons.



(Xfire is disabled in CCC, was used to do some initial testing)


Clocks are (Left to right, XFX XFX PowerColor):

GPU: 925,925,850
MEM: 1375,1375,1250
VDC: 1.174,1.174,1.125
FANS: 100%

7970's get ~500Kh, 550 from room temp.
7950 stable at 500Kh.

Not sure what I should do to maintain hashrate, but lower temps to a safe level...
Don't want my cards melting or self destructing after I just got them.

If I have to, I'll do the milkcrate setup, just having to wait another week to get the supplies will be a bummer.

EDIT: Case door open, and window open... 0*F air is blowing directly into the computer...
Top to bottom temps: 72C, 96C, 77C

Also, I think all my cards are voltage locked, and don't want to risk bricking the card or voiding the warranty :/

I have the exact same 7950, it isn't voltage locked and if you've got really good case airflow that shroud needs to come off.

Check my thread here, it sheds some light on how much of a heat prison the reference shroud is.

If you have a side panel fan mount, a 120mm / 140mm fan will drop temperatures substantially
Edited by Bl00dyMurd3r - 12/13/13 at 9:23pm
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post #5094 of 22535
So 1 MHS is getting sexcoins equivalent to .9 ltc and my 3+ MHS is only getting 1 ltc mining directly... Does btc-e trade sexcoins?

My 7950 is getting 500 khs running at 825/1250 at 82 cel. Could be better but can't change volts from 1.250
Edited by CravinR1 - 12/13/13 at 9:29pm
post #5095 of 22535
Quote:
Originally Posted by Joannou1 View Post

So, I need some advice here...

I finally got my TigerDirect order.

Though they messed up, and sent me 7970's instead of 7950's smile.gif
Not complaining.

I had originally ordered the XFX DD ones because they were the only ones in stock for a long time.
And yes, I know everyone says stay away from XFX... Like I said, only cards in stock at the time for a descent price.


So, here's my rather shabby setup...


2x XFX 7970's DD's
1x Powercolor 7950

I get around 1.5 Mh/s with all of them working.

Though I am having some SEVERE issues with heat.

All of them are in the 90's.
Even with really good airflow.


I am thinking about doing a milk-crate setup with the PCIe extenders and all, just thought I could get away with them being in my case.

Here's what it currently looks like, the XFX card that is mashed up against the Powercolor gets the hottest for obvious reasons.



(Xfire is disabled in CCC, was used to do some initial testing)


Clocks are (Left to right, XFX XFX PowerColor):

GPU: 925,925,850
MEM: 1375,1375,1250
VDC: 1.174,1.174,1.125
FANS: 100%

7970's get ~500Kh, 550 from room temp.
7950 stable at 500Kh.

Not sure what I should do to maintain hashrate, but lower temps to a safe level...
Don't want my cards melting or self destructing after I just got them.

If I have to, I'll do the milkcrate setup, just having to wait another week to get the supplies will be a bummer.

EDIT: Case door open, and window open... 0*F air is blowing directly into the computer...
Top to bottom temps: 72C, 96C, 77C

Also, I think all my cards are voltage locked, and don't want to risk bricking the card or voiding the warranty :/

I have an XFX 7950 DD mining right now. My usual settings are 1000 or 1050 for clock, 1400 for memory and hashing at 18 intensity gets me around 550 Kh/s.

The right fan in my card stopped working but it can still remain cool enough with the other one on to mine all day and stays anywhere from 75C to 80C.

Yeah the fans on these suck. Get them on a milkcrate ASAP.

I have the Prodigy ITX case so the card is oriented vertically and almost hovering above allowing enough room for hot air push out the bottom, and top. Putting them in a milkcrate would ventilate them almost the same way.
Edited by ccRicers - 12/13/13 at 9:33pm
post #5096 of 22535
Quote:
Originally Posted by CravinR1 View Post

So 1 MHS is getting sexcoins equivalent to .9 ltc and my 3+ MHS is only getting 1 ltc mining directly... Does btc-e trade sexcoins?

Not sure, but Cryptsy does!
My Pride and Joy
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[Intel] i7-3770k @ 4.8 GHz (Delid) [ASUS] P8Z77 WS [Sapphire] R9 290 Vapor-X [Sapphire] R9 290 Vapor-X 
RAMHard DriveHard DriveHard Drive
[Team Group] 16GB @ 2133 [Samsung] 850 Pro 256 GB [Samsung] 840 Evo 120 GB [Western Digital] Caviar Blue 1TB 
Hard DriveHard DriveHard DriveHard Drive
[Seagate] Barracuda 1TB [Seagate] Barracuda 500GB [Toshiba] 2TB [Kingston] SSDnow V300 60gb 
Optical DriveCoolingOSMonitor
Asus drive Custom Loop ;D [Microsoft] Windows 8.1 Pro x64 BenQ BL3200PT 
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RAMHard DriveHard DriveHard Drive
[Team Group] 16GB @ 2133 [Samsung] 850 Pro 256 GB [Samsung] 840 Evo 120 GB [Western Digital] Caviar Blue 1TB 
Hard DriveHard DriveHard DriveHard Drive
[Seagate] Barracuda 1TB [Seagate] Barracuda 500GB [Toshiba] 2TB [Kingston] SSDnow V300 60gb 
Optical DriveCoolingOSMonitor
Asus drive Custom Loop ;D [Microsoft] Windows 8.1 Pro x64 BenQ BL3200PT 
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post #5097 of 22535
My issue isn't khs can go over 660 with my 7950 but have to under clock to keep temps down due to 1.250 locked bios.

post #5098 of 22535
I have been getting some mixed answers reading around. Are dummy Plugs required? I am having trouble with getting my 3 cards to mine and someone told me I do not need them. Linux shows the cards, but when I go to CGminer only one of my cards spins up, and it splits the hashrate between two cards (though i know they are not mining because there is 0 temperature increase) Hoping to get this running tonight if possible.
post #5099 of 22535
I don't use dummies
post #5100 of 22535
Quote:
Originally Posted by CravinR1 View Post

My issue isn't khs can go over 660 with my 7950 but have to under clock to keep temps down due to 1.250 locked bios.


You should dump the bios and edit the stock voltages and clocks with this tool.

Flash that puppy back, and your heat problems will be gone, plus lower power consumption is always nice
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[Team Group] 16GB @ 2133 [Samsung] 850 Pro 256 GB [Samsung] 840 Evo 120 GB [Western Digital] Caviar Blue 1TB 
Hard DriveHard DriveHard DriveHard Drive
[Seagate] Barracuda 1TB [Seagate] Barracuda 500GB [Toshiba] 2TB [Kingston] SSDnow V300 60gb 
Optical DriveCoolingOSMonitor
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RAMHard DriveHard DriveHard Drive
[Team Group] 16GB @ 2133 [Samsung] 850 Pro 256 GB [Samsung] 840 Evo 120 GB [Western Digital] Caviar Blue 1TB 
Hard DriveHard DriveHard DriveHard Drive
[Seagate] Barracuda 1TB [Seagate] Barracuda 500GB [Toshiba] 2TB [Kingston] SSDnow V300 60gb 
Optical DriveCoolingOSMonitor
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