Chick (OP)
Member
 Offline
Activity: 70
Merit: 10
|
 |
June 06, 2011, 04:47:54 PM |
|
Hi, I'm about to join the mining craze and just wanted to know if this is a good system for $827 bucks. I could probably overclock each of the 5830s to reach 300 mil-hash/second. Which gives me a 1.2 bill-hash/second system.
Will a 950 watt power supply do?
|
|
|
|
|
|
|
|
|
|
|
The network tries to produce one block per 10 minutes. It does this by automatically adjusting how difficult it is to produce blocks.
|
|
|
Advertised sites are not endorsed by the Bitcoin Forum. They may be unsafe, untrustworthy, or illegal in your jurisdiction.
|
|
|
|
Freakin
|
 |
June 06, 2011, 04:50:05 PM |
|
What are the other specs?
I think it's a pretty good system for $827. 5830 is a great card for the value.
They pull about 200W (from what I've read), so with overclocking 950W is probably doable but doesn't leave you much wiggle room.
i got my cards running in windows @ 306MH/s without any problem
|
|
|
|
|
|
airdata
|
|
June 06, 2011, 05:03:30 PM |
|
What are you using / doing to get that speed on them? I have some in the mail now. Thanks.
|
|
|
|
|
Freakin
|
|
June 06, 2011, 05:08:23 PM |
|
What are you using / doing to get that speed on them? I have some in the mail now. Thanks.
Win7 64-bit Phoenix with Phatk Trixx overclocked the cards to 990/330 at stock voltage -v VECTORS BFI_INT FASTLOOP=false AGGRESSION=12 WORKSIZE=256 |
|
|
|
|
lonestar
Newbie
Offline
Activity: 13
Merit: 0
|
|
June 06, 2011, 05:09:42 PM |
|
which motherboard?
|
|
|
|
|
SgtSpike
Legendary
Offline
Activity: 1400
Merit: 1005
|
|
June 06, 2011, 05:10:44 PM |
|
What are you using / doing to get that speed on them? I have some in the mail now. Thanks.
Win7 64-bit Phoenix with Phatk Trixx overclocked the cards to 990/330 at stock voltage -v VECTORS BFI_INT FASTLOOP=false AGGRESSION=12 WORKSIZE=256 Do you have them crossfired? If not, how did you get Trixx to overclock all of the cards? |
|
|
|
|
Chick (OP)
Member
Offline
Activity: 70
Merit: 10
|
|
June 06, 2011, 05:17:45 PM |
|
Haha, that's just great. I was just about to buy them and they went out of stock...
|
|
|
|
lemosax
Newbie
Offline
Activity: 21
Merit: 0
|
|
June 06, 2011, 06:39:15 PM |
|
I just built two of these systems, so this may be helpful for you:
MSI 890FXA-GD70 with Sempron 140
CORSAIR 950TX P/S
HAF-X Case with 1 additional 200mm top fan, 1 additional 140mm inside
4 Saphire 5830 GPUs
1 7200 RPM HD
Overclocking the GPUs to 950MHz Core, 300MHz Memory results in 288Mhash/sec.
Power draw is 668 Watts while hashing, even with fans set at 100%. At least according to the Kill-A-Watt.
|
|
|
|
|
|
Freakin
|
|
June 06, 2011, 06:50:40 PM |
|
What are you using / doing to get that speed on them? I have some in the mail now. Thanks.
Win7 64-bit Phoenix with Phatk Trixx overclocked the cards to 990/330 at stock voltage -v VECTORS BFI_INT FASTLOOP=false AGGRESSION=12 WORKSIZE=256 Do you have them crossfired? If not, how did you get Trixx to overclock all of the cards? Sorry, not crossfired. They are individual cards in non-dedicated machines. I have one in my desktop, one in my media server and one in a temporary machine that is waiting for the proper RAM to be sent... |
|
|
|
|
Chick (OP)
Member
Offline
Activity: 70
Merit: 10
|
|
June 06, 2011, 11:20:46 PM |
|
I just built two of these systems, so this may be helpful for you:
MSI 890FXA-GD70 with Sempron 140
CORSAIR 950TX P/S
HAF-X Case with 1 additional 200mm top fan, 1 additional 140mm inside
4 Saphire 5830 GPUs
1 7200 RPM HD
Overclocking the GPUs to 950MHz Core, 300MHz Memory results in 288Mhash/sec.
Power draw is 668 Watts while hashing, even with fans set at 100%. At least according to the Kill-A-Watt.
I got the XFX 5830s from Tiger Direct. Do you think an antec 750watt PSU would work? |
|
|
|
|
sirky
|
|
June 06, 2011, 11:22:42 PM |
|
I would run a little higher than that. That seems to be cutting it close.
|
|
|
|
|
Chick (OP)
Member
Offline
Activity: 70
Merit: 10
|
|
June 06, 2011, 11:29:22 PM |
|
I would run a little higher than that. That seems to be cutting it close.
850watt? |
|
|
|
|
kr105
|
|
June 06, 2011, 11:36:10 PM |
|
Yesterday i saw some 5830 on ebay for under $150, now they are all gone! Only $180+ remain  |
|
|
|
|
|
bcpokey
|
|
June 06, 2011, 11:36:31 PM |
|
I would run a little higher than that. That seems to be cutting it close.
850watt? I'm glad to see someone not looking to immediately buy 1000Watts+ for no reason. First things first, "xxx watt" is not the only factor. There are plenty of "850 Watt" power supplies out there that will almost 100% for sure die a gruesome death running 4x 5830s. I would recommend an 850Watt PSU not because it's necessary, but because unless you know enough about power trimming, it might become necessary. Get something simple like a http://www.newegg.com/Product/Product.aspx?Item=N82E16817139022 and you will be golden. It's pretty cheap for what you get. You can get cheaper but you'll need to do research. |
|
|
|
|
|
bcpokey
|
|
June 06, 2011, 11:37:14 PM |
|
Yesterday i saw some 5830 on ebay for under $150, now they are all gone! Only $180+ remain Don't buy 5830s for $150, that's a bad bad deal. You'd be better off buying 6870s for around that price. 5830s are only sought after because they retail for ~$100. |
|
|
|
|
|
|
BitCointransfers
Member
Offline
Activity: 104
Merit: 10
|
|
June 06, 2011, 11:45:47 PM |
|
I'm running a box with 4 x 5830 using quality cooler master 850W Silent Pro Supply. No probs
|
|
|
|
|
Chick (OP)
Member
Offline
Activity: 70
Merit: 10
|
|
June 06, 2011, 11:47:59 PM |
|
I would run a little higher than that. That seems to be cutting it close.
850watt? I'm glad to see someone not looking to immediately buy 1000Watts+ for no reason. First things first, "xxx watt" is not the only factor. There are plenty of "850 Watt" power supplies out there that will almost 100% for sure die a gruesome death running 4x 5830s. I would recommend an 850Watt PSU not because it's necessary, but because unless you know enough about power trimming, it might become necessary. Get something simple like a http://www.newegg.com/Product/Product.aspx?Item=N82E16817139022 and you will be golden. It's pretty cheap for what you get. You can get cheaper but you'll need to do research. Thanks, I know Corsair makes quality PSUs.  Ooh, the free 2 day shipping trial is very nice! |
|
|
|
Chick (OP)
Member
Offline
Activity: 70
Merit: 10
|
|
June 06, 2011, 11:51:01 PM |
|
Yesterday i saw some 5830 on ebay for under $150, now they are all gone! Only $180+ remain Don't buy 5830s for $150, that's a bad bad deal. You'd be better off buying 6870s for around that price. 5830s are only sought after because they retail for ~$100. Bought them from TigerDirect because I can get two $30 rebates. Plus, they each come with a game code worth $20! Guess I'm going to keep one of the codes to myself and sell the other 3. |
|
|
|
|
