LiteCoin Mining - Page 11 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

ayau · 02-10-2014, 11:16 PM

Quote:

Originally Posted by Luis_GT

Can't help you there... OC capabilities are luck of the draw... and from what I experienced in my short time with a 290X, underclocking increased hasshing spped... weirdly...

No worries. Just ordered an Asus 290x. Let the mining begin!

I'm guessing if I ordered 2 290x, I won't get 900x2 kilohashes. How many hashes do you get if you run 2 cards, 3 cards, etc?

Luis_GT · 02-10-2014, 11:17 PM

Depending on the card, and how the bios is setup, you can get close to the same hashing power on both... both my 7950's do 640khash be it single or both on the same rig.

utekineir · 02-10-2014, 11:33 PM

I have one slow system (on new parts). All cards are the same.

Also. I had a 290x for a few days. It was more like 850khash but I didn't tweak it much either

My 270x get 420-430 each on most. 380 ish on another couple on the slow system.

Cost about a third of 290x

Assuming retail 280x is the amazing card. Which is why it has $100 markup

Luis_GT · 02-10-2014, 11:37 PM

280X = 7970, it does around 750khash

Guff · 02-10-2014, 11:54 PM

I still haven't found a way boost my 7970s to 750... They're both sitting at about 640.

I think I'm going to try changing drivers again... Nothing else has seemed to work...

ayau · 02-11-2014, 12:46 PM

Cancelled my 290x order and ordered 2 280x instead. Better hash/$. I'll be limited to 2 video cards for now unless I upgrade my PSU.

Luis_GT · 02-11-2014, 08:59 PM

Oh baby!

Guff · 02-11-2014, 09:41 PM

Beautiful!

Guff · 02-12-2014, 04:04 PM

I think I froze my cards last night...

I have the computer at a window with a box fan. I let it run for a bit and saw it was running a bit hot, so I opened the window and turned the fan on. It was -3F outside and after about 10 minutes I noticed that one of the cards was running it's fan at a very high speed... I turned on my monitor and checked, and both cards read 0 degrees and were hashing at like 10KHs. One Fan was at 100rpm, the other was at 4100 rpm...

Needless to say, I'm regulating the heat now, and everything is running smooth. But my room is really freaking cold...

Luis_GT · 02-12-2014, 04:49 PM

LMAO... although as long as it doesn't ice up you should be fine... people have run this card under liquid nitrogen... lol

ayau · 02-12-2014, 06:44 PM

Hmm... I'll need a bigger PSU to run more than 2 cards.

rupert · 02-12-2014, 09:10 PM

I have a Seasonic 1000w Platinum running four 7950s. It seems to do just fine.

I tried the Litecoin BAMT and have had some issues. I think I am going to try and put together a Xubuntu build on a USB3 flash drive.

I've undervolted all of them to 1.081v and cards three and four slow down after a little bit. None of them make it above 80C. Is it a config issue or a power issue? I forgot to check my KillAWatt when I noticed that issue.

ayau · 02-13-2014, 12:28 PM

Which pci express riser cards do you guys recommend?

utekineir · 02-13-2014, 07:24 PM

Quote:

Originally Posted by ayau

Which pci express riser cards do you guys recommend?

i got the cheap ones off amazon that shipped sooner than 3 weeks out, won't matter till i build a case/ enclosure

micro center got 280x in locally today @ retail. 4 in stock when i first noticed, 1 in stock by time i got to cart.

02-10-2014, 11:54 PM	#145
Guff Now w/ over 400 womprats! Join Date: Nov 2011 Drives: BRZ LZR Location: Texas/Illinois Posts: 4,785 Thanks: 10,452 Thanked 3,420 Times in 1,424 Posts Mentioned: 301 Post(s)	I still haven't found a way boost my 7970s to 750... They're both sitting at about 640. I think I'm going to try changing drivers again... Nothing else has seemed to work... __________________ "Sweet Subaru, sweet Subaru, send your BRZ unto me, for the roads of the unworthy must be baptized in speed and glory." - The Ancient BRZ Sacrament by Zaku

02-11-2014, 09:41 PM	#148
Guff Now w/ over 400 womprats! Join Date: Nov 2011 Drives: BRZ LZR Location: Texas/Illinois Posts: 4,785 Thanks: 10,452 Thanked 3,420 Times in 1,424 Posts Mentioned: 301 Post(s)	Beautiful! __________________ "Sweet Subaru, sweet Subaru, send your BRZ unto me, for the roads of the unworthy must be baptized in speed and glory." - The Ancient BRZ Sacrament by Zaku

02-12-2014, 04:04 PM	#149
Guff Now w/ over 400 womprats! Join Date: Nov 2011 Drives: BRZ LZR Location: Texas/Illinois Posts: 4,785 Thanks: 10,452 Thanked 3,420 Times in 1,424 Posts Mentioned: 301 Post(s)	I think I froze my cards last night... I have the computer at a window with a box fan. I let it run for a bit and saw it was running a bit hot, so I opened the window and turned the fan on. It was -3F outside and after about 10 minutes I noticed that one of the cards was running it's fan at a very high speed... I turned on my monitor and checked, and both cards read 0 degrees and were hashing at like 10KHs. One Fan was at 100rpm, the other was at 4100 rpm... Needless to say, I'm regulating the heat now, and everything is running smooth. But my room is really freaking cold... __________________ "Sweet Subaru, sweet Subaru, send your BRZ unto me, for the roads of the unworthy must be baptized in speed and glory." - The Ancient BRZ Sacrament by Zaku

02-10-2014, 11:17 PM	#142
Luis_GT Banned Join Date: Jul 2012 Drives: 2002 BMW 530i, 10 Series FR-S Location: Puerto Rico Posts: 3,404 Thanks: 3,416 Thanked 3,334 Times in 1,754 Posts Mentioned: 60 Post(s)	Depending on the card, and how the bios is setup, you can get close to the same hashing power on both... both my 7950's do 640khash be it single or both on the same rig.

02-10-2014, 11:33 PM	#143
utekineir blowhard Join Date: Jun 2013 Drives: frs, project forester Location: ma Posts: 980 Thanks: 53 Thanked 604 Times in 316 Posts Mentioned: 5 Post(s)	I have one slow system (on new parts). All cards are the same. Also. I had a 290x for a few days. It was more like 850khash but I didn't tweak it much either My 270x get 420-430 each on most. 380 ish on another couple on the slow system. Cost about a third of 290x Assuming retail 280x is the amazing card. Which is why it has $100 markup

02-10-2014, 11:37 PM	#144
Luis_GT Banned Join Date: Jul 2012 Drives: 2002 BMW 530i, 10 Series FR-S Location: Puerto Rico Posts: 3,404 Thanks: 3,416 Thanked 3,334 Times in 1,754 Posts Mentioned: 60 Post(s)	280X = 7970, it does around 750khash

02-11-2014, 12:46 PM	#146
ayau Senior Member Join Date: Nov 2011 Drives: Some rust bucket Location: Polar ice cap Posts: 3,058 Thanks: 312 Thanked 1,046 Times in 556 Posts Mentioned: 37 Post(s)	Cancelled my 290x order and ordered 2 280x instead. Better hash/$. I'll be limited to 2 video cards for now unless I upgrade my PSU.

02-11-2014, 08:59 PM	#147
Luis_GT Banned Join Date: Jul 2012 Drives: 2002 BMW 530i, 10 Series FR-S Location: Puerto Rico Posts: 3,404 Thanks: 3,416 Thanked 3,334 Times in 1,754 Posts Mentioned: 60 Post(s)	Oh baby!

02-12-2014, 04:49 PM	#150
Luis_GT Banned Join Date: Jul 2012 Drives: 2002 BMW 530i, 10 Series FR-S Location: Puerto Rico Posts: 3,404 Thanks: 3,416 Thanked 3,334 Times in 1,754 Posts Mentioned: 60 Post(s)	LMAO... although as long as it doesn't ice up you should be fine... people have run this card under liquid nitrogen... lol

02-12-2014, 06:44 PM	#151
ayau Senior Member Join Date: Nov 2011 Drives: Some rust bucket Location: Polar ice cap Posts: 3,058 Thanks: 312 Thanked 1,046 Times in 556 Posts Mentioned: 37 Post(s)	Hmm... I'll need a bigger PSU to run more than 2 cards.

02-12-2014, 09:10 PM	#152
rupert Audio & Bacon Junkie Join Date: May 2011 Drives: 2013 WRB BRZ Ltd Location: Jax, FL Posts: 160 Thanks: 87 Thanked 81 Times in 35 Posts Mentioned: 3 Post(s)	I have a Seasonic 1000w Platinum running four 7950s. It seems to do just fine. I tried the Litecoin BAMT and have had some issues. I think I am going to try and put together a Xubuntu build on a USB3 flash drive. I've undervolted all of them to 1.081v and cards three and four slow down after a little bit. None of them make it above 80C. Is it a config issue or a power issue? I forgot to check my KillAWatt when I noticed that issue.

02-13-2014, 12:28 PM	#153
ayau Senior Member Join Date: Nov 2011 Drives: Some rust bucket Location: Polar ice cap Posts: 3,058 Thanks: 312 Thanked 1,046 Times in 556 Posts Mentioned: 37 Post(s)	Which pci express riser cards do you guys recommend?

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