Search content
Sort by
Showing 20 of 187 results by HashHound
Re: XFX Black Edition R9 280x (4 cards on 1 motherboard) Having some issues.
You shouldn't connect the two PCI-E of the same modular PSU rail to one card, that is also somewhere stated in the manual of the GPU.
So each power rail is connected to 2 GPU cards, 8-pin to the first GPU, 6-pin to the second GPU.
So each power rail is connected to 2 GPU cards, 8-pin to the first GPU, 6-pin to the second GPU.
I tried this, the machine was more stable when I had 1 cable per card.
I've tried so many different setups with my power supplies. (http://www.newegg.com/Product/Product.aspx?gclid=CPLK1P6f2bwCFecRMwodKlYAhQ&Item=N82E16817182264&nm_mc=KNC-GoogleAdwords&cm_mmc=KNC-GoogleAdwords-_-pla-_-Power+Supplies-_-N82E16817182264&ef_id=UuYUTwAAAfbx9LV1:20140219223501:s) Like I said, the most stable set up was with 1 card on the main PSU and 2 cards on the 2nd PSU, all cards were on their own individual rail. My PSU manual says nothing about how to setup multiple PCI-e video cards.
Sorry for bailing on this post, I was out of town.
Re: XFX Black Edition R9 280x (4 cards on 1 motherboard) Having some issues.
So it looks like I didn't have enough power between the 2 power supply units to power 4 cards.
I'm running 3 cards just fine at ~700 Kh/s each. Now what to do with this other r9 280x..? Maybe I should upgrade one of the 750 watt PSUs.
Maybe I'm just bad at setting all this up and the 2 PSUs I have will do just fine for 4 cards. Anyways, it's time for me to stop messing with it for the night.
I'm running 3 cards just fine at ~700 Kh/s each. Now what to do with this other r9 280x..? Maybe I should upgrade one of the 750 watt PSUs.
Maybe I'm just bad at setting all this up and the 2 PSUs I have will do just fine for 4 cards. Anyways, it's time for me to stop messing with it for the night.
Re: XFX Black Edition R9 280x (4 cards on 1 motherboard) Having some issues.
It's probably not so much your settings but the power distribution.
I have 4 x 290X running on a 1500W and had to try all kinds of PCI-E connector combinations on those cards to keep it running without crashing when 100%.
Those R9 cards pull a lot of power so make sure you don't put every card on one rail of your PSU.
My PSU has 5 rails and each has 2 PCI-E plugs on it, I had to use all 5 for the 4 cards.
Example:
Connector 1 of rail 1 in card 1 8-pin PCI-E
Connector 2 of rail 1 in card 2 6-pin PCI-E
Connector 1 of rail 2 in card 2 8-pin PCI-E
Connector 2 of rail 2 in card 1 6-pin PCI-E
Connector 1 of rail 3 in card 3 8-pin PCI-E
...and so on, it's not an exact science because I had to try some other combinations too, all of this also depending on your PSU quality.
Maybe that's the issue for you too
I have 4 x 290X running on a 1500W and had to try all kinds of PCI-E connector combinations on those cards to keep it running without crashing when 100%.
Those R9 cards pull a lot of power so make sure you don't put every card on one rail of your PSU.
My PSU has 5 rails and each has 2 PCI-E plugs on it, I had to use all 5 for the 4 cards.
Example:
Connector 1 of rail 1 in card 1 8-pin PCI-E
Connector 2 of rail 1 in card 2 6-pin PCI-E
Connector 1 of rail 2 in card 2 8-pin PCI-E
Connector 2 of rail 2 in card 1 6-pin PCI-E
Connector 1 of rail 3 in card 3 8-pin PCI-E
...and so on, it's not an exact science because I had to try some other combinations too, all of this also depending on your PSU quality.
Maybe that's the issue for you too
Thanks for the reply. I'm pretty sure each card has it's own rail. I'm using a couple modular PSUs. However, I do have the powered risers 2 risers per rail? Should they also have their own?
Is there a more efficient way to divide up the power I'm using? Maybe put 3 cards on one PSU and then the motherboard, hard drive, risers, and main GPU on the other PSU..?
Also, do I need to do anything with the main power line from the PSU that is NOT powering the motherboard?
I kinda jumped into all this without knowing too much about power/voltage. That probably wasn't the brightest idea.
Thanks again.
Re: XFX Black Edition R9 280x (4 cards on 1 motherboard) Having some issues.
I'm currently using these settings.
-I 13 -w 256 --thread-concurrency 8192 -g 2 --gpu-engine 1040 --gpu-memclock 1500
With these settings, 2 cards run at 100% speed and 2 cards are running at like 5% speed.
I tried to put in --powertune 20 and this briefly enables 3 cards to run at 100% speed, then my machine crashes.
I realize there is no one replying here, but I don't know where else to go for information.
Help please! =o
-I 13 -w 256 --thread-concurrency 8192 -g 2 --gpu-engine 1040 --gpu-memclock 1500
With these settings, 2 cards run at 100% speed and 2 cards are running at like 5% speed.
I tried to put in --powertune 20 and this briefly enables 3 cards to run at 100% speed, then my machine crashes.
I realize there is no one replying here, but I don't know where else to go for information.
Help please! =o
Re: XFX Black Edition R9 280x (4 cards on 1 motherboard) Having some issues.
Forgot to add, I'm using two 750 watt power supplies, and the motherboard is an ASUS M5A97 (http://www.newegg.com/Product/Product.aspx?Item=N82E16813131873). Also, I'm running 8gb of ram on the system.
XFX Black Edition R9 280x (4 cards on 1 motherboard) Having some issues.
Hey everyone! I recently built my first scrypt mining rig, and I'm having trouble getting the thing to kick out anywhere near the numbers some of you are getting with your r9 280x's.
I've heard some bad things about XFX cards on other forums, but I'd like some advice from you guys. I have 4 of these cards (http://www.newegg.com/Product/Product.aspx?Item=N82E16814150690)
I've tried multiple different settings on cgminer, but nothing seems to work. Any advice here would be awesome.
I had my machine running 2 of the cards at ~700kh/s each, while I was waiting for my risers to ship. Hopefully my risers aren't messed up or something.
Anyways, this thing has given me so many problems, but I really want to see it running at full speed.
Thanks in advance.
I've heard some bad things about XFX cards on other forums, but I'd like some advice from you guys. I have 4 of these cards (http://www.newegg.com/Product/Product.aspx?Item=N82E16814150690)
I've tried multiple different settings on cgminer, but nothing seems to work. Any advice here would be awesome.
I had my machine running 2 of the cards at ~700kh/s each, while I was waiting for my risers to ship. Hopefully my risers aren't messed up or something.
Anyways, this thing has given me so many problems, but I really want to see it running at full speed.
Thanks in advance.
Re: [ANN][HUC] Huntercoin - UPDATE - Sync Fixed - Hardly Any Coins mined on Map
please send some coins to get the game started..
HPUsQmxxnerh1rC4Q94JW6ZGmphY92sZms
thanks!!
mining give me nothing atm, mining with 470kh/s , but still nothing
HPUsQmxxnerh1rC4Q94JW6ZGmphY92sZms
thanks!!
mining give me nothing atm, mining with 470kh/s , but still nothing
I sent you .05
I don't know if it worked or not, but it was worth a try.
Re: [LAUGH&LOSE] 42 | + | You Laugh You Lose | + | 42 Edition | + | Go....
http://www.youtube.com/watch?v=SxKpLnE3sGo
....
I don't know why it's so funny. Humans are pretty dumb sometimes.
4MJXy3nmXadXHPaLMuD7Xerb398Nmfor9K
....
I don't know why it's so funny. Humans are pretty dumb sometimes.
4MJXy3nmXadXHPaLMuD7Xerb398Nmfor9K
Re: [ANN][NOBL]*NOBLECOIN* - LIBERTY. PROSPERITY. SECURITY.
HOW FAR OFF BEING ON A EXCHANGE ARE WE ?
Don't sell!
thread in the bitcoin forum. they seem to be catching up on holiday orders still. something about shipping in south africa. may take month+ to get your shit. but looks like good shit.
sure beats my wooden shoe racks.
sure beats my wooden shoe racks.
Haha for sure, I might have to build some sort of temporary rig while I wait for one of these to ship...
I messaged a guy who builds really nice looking open rigs, (From this topic https://bitcointalk.org/index.php?topic=288130.0) but I dunno if he will get back to me.
I bet demand is pretty high for those things.
Man I wish I had a 3d Printer.
Forgot to mention, I'm gonna throw this in an open case.
Anyone know if these guys are legit?
http://openrigs.com
Anyone know if these guys are legit?
http://openrigs.com
Our 5x 280x rig runs of two of these: http://www.newegg.com/Product/Product.aspx?Item=N82E16817182264
It's just about the nicest 80Plus Gold 750W PSU for the price. The fact that it's modular is icing on the cake. Two of them will run you ~$220, which is not a bad price for 1500W!
We run the MB, 2 GPUs, and 4 of the risers on one of them. The other one runs the remaining 3 GPUs and 1 of the risers. Total draw from the wall (for both PSUs) is 1450W (stock), and 1250W (undervolted @ same hashrate). If you're not undervolting, going with 2x 800W would be better, just to give yourself some wiggle room.
It's just about the nicest 80Plus Gold 750W PSU for the price. The fact that it's modular is icing on the cake. Two of them will run you ~$220, which is not a bad price for 1500W!
We run the MB, 2 GPUs, and 4 of the risers on one of them. The other one runs the remaining 3 GPUs and 1 of the risers. Total draw from the wall (for both PSUs) is 1450W (stock), and 1250W (undervolted @ same hashrate). If you're not undervolting, going with 2x 800W would be better, just to give yourself some wiggle room.
Thank you, I'll take your advice on that PSU. It's hard to find one with 4 6+2 pins for such a good price.