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Author Topic: Building computer for mining, bought these. Advice?  (Read 3023 times)
Noitev
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April 12, 2011, 03:39:42 AM
 #1

Qty. Image Product Description Unit Price Savings  Total Price
1   Rosewill CHALLENGER Black Gaming ATX Mid Tower Computer Case, comes with Three Fans-1x Front Blue LED 120mm Fan, 1x Top 140mm ...
Model #:CHALLENGER
Item #:N82E16811147153
Return Policy:Standard Return Policy
In Stock
  $59.99  -$5.00 Instant $54.99
1   MSI 890FXA-GD65 AM3 AMD 890FX SATA 6Gb/s USB 3.0 ATX AMD Motherboard
Model #:890FXA-GD65
Item #:N82E16813130565
Return Policy:Standard Return Policy
In Stock
Mail in Rebate13-130-565

  $149.99  -$20.00 Instant $129.99
2   MSI R5870 Lightning II Radeon HD 5870 1GB 256-bit GDDR5 PCI Express 2.1 x16 HDCP Ready CrossFireX Support Video Card
Model #:R5870 Lightning II
Item #:N82E16814127509
Return Policy:VGA Standard Return Policy
In Stock
  $229.99    $459.98
1   Rosewill BRONZE Series RBR1000-M 1000W Continuous@40°C, 80Plus Bronze Certified,Modular Cable Design,Active PFC"Compatible ...
Model #:RBR1000-M
Item #:N82E16817182188
Return Policy:Standard Return Policy
In Stock
  $199.99  -$70.00 Instant $129.99
1   AMD Athlon II X2 265 Regor 3.3GHz Socket AM3 65W Dual-Core Desktop Processor ADX265OCGMBOX
Model #:ADX265OCGMBOX
Item #:N82E16819103910
Return Policy:CPU Replacement Only Return Policy
In Stock
  $77.99    $77.99
1   Crucial 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10600) Dual Channel Kit Desktop Memory Model CT2KIT25664BA1339
Model #:CT2KIT25664BA1339
Item #:N82E16820148262
Return Policy:Memory Standard Return Policy
In Stock
  $39.99    $39.99
1   Seagate Barracuda ST31000524AS 1TB 7200 RPM SATA 6.0Gb/s 3.5" Internal Hard Drive -Bare Drive
Model #:ST31000524AS
Item #:N82E16822148697
Return Policy:Standard Return Policy
In Stock
  $64.99  -$5.00 Instant $59.99
1   Pixxo KM-2781U Black USB Wired Standard Multimedia Slim Keyboard
Model #:KM-2781U
Item #:N82E16823664009
Return Policy:Standard Return Policy
In Stock
  $18.99  -$10.00 Instant $8.99
1   Pixxo MO-I133UR Red 3 Buttons 1 x Wheel USB Wired Optical Mouse
Model #:MO-I133UR
Item #:N82E16826664015
Return Policy:Standard Return Policy
In Stock
  $12.99  -$5.00 Instant $7.99
1   LG DVD±RW SuperMulti Drive Black SATA Model GH22NS50B - OEM
Model #:GH22NS50B
Item #:N82E16827136216
Return Policy:Standard Return Policy
In Stock
  $18.99    $18.99
Subtotal: $988.89


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Noitev
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April 12, 2011, 03:53:55 AM
 #2

I think I thought it out fair, and will use the guiminer for each card. but anything blantantly stupid?
allinvain
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April 12, 2011, 03:55:06 AM
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Pretty good..although for a dedicated miner you really do not need a 1 TB hd, unless you plan to use it for some other purpose as well..ie file server?

That Rosewill power supply though, is it reliable and can you trust it with a high end card like the 5870? What do the reviews say?


Noitev
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April 12, 2011, 04:01:28 AM
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It hadpretty fair reviews. Opted for a 1kw supply since I have the two cards going. The terabyte is for storage as I may use this computer for browsing, etc. probably going to instal a completely legal *coughcough* windows 7 ultimate for minor tasks.
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April 12, 2011, 04:06:04 AM
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If this is a dedicated miner, you are paying WAY too much. If not, then it looks good

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Noitev
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April 12, 2011, 04:07:00 AM
 #6

well its a do everything computer... I may make a dedicated miner eventually, but this is for everything with priority on mining
allinvain
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April 12, 2011, 04:11:38 AM
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It hadpretty fair reviews. Opted for a 1kw supply since I have the two cards going. The terabyte is for storage as I may use this computer for browsing, etc. probably going to instal a completely legal *coughcough* windows 7 ultimate for minor tasks.

Oh yeah a 1KW power supply will be more than enough. Just remember that if you're going to overclock them your power usage will go up and often it does not increase in a linear fashion - in other words there are diminishing returns.

Where have you priced this build? Newegg?

Noitev
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April 12, 2011, 04:12:55 AM
 #8

WEll i bought all this on newegg already. This is my finished shopping cart. Never built a computer so im trying to have fun with it. Wanted to see if I did anything blatantly dumb, but my friend says it looks fine.
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April 12, 2011, 04:22:11 AM
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looks fine.... though next time, if you want a better tweaked build or just want to check, bitcoin.org is NOT the place to go... instead, go to techpowerup.com or similar sites

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Noitev
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April 12, 2011, 04:32:03 AM
 #10

I thought you would have more experience with the specific info. but meh. How much would a 1ghash dedicated miner cost anyway?
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April 12, 2011, 04:42:12 AM
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I thought you would have more experience with the specific info. but meh. How much would a 1ghash dedicated miner cost anyway?

depends if you mind buying used etc.

A dedicated miner, IMO, should at least have 2* 5970 or 6990s, but IMO, a dedicated miner should be 4* 5970 or 6990 (using linux), as that is what will give the best return on your investment. Dedicated miners are a risky business if you pay for electricity, and even more risky if you pay more than 10cents the KW/h

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April 12, 2011, 03:15:00 PM
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A good 650w PSU will run 2 5870s at stock clocks and a Sempron.  Of course, if you are using a CPU above a Sempron or overclocking you might want to go with 700w or 750w.

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April 12, 2011, 04:37:16 PM
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A good 650w PSU will run 2 5870s at stock clocks and a Sempron.  Of course, if you are using a CPU above a Sempron or overclocking you might want to go with 700w or 750w.

+1
I'm running a pair of 170W cards and an overclocked Core i7 950 on a 700W power supply just fine.  Any 1000W power supply that follows the ATX spec will run a pair of 5870s at whatever overclock they can feasibly run at as well as all of the other components in your system, but you would've been fine using an 850W PSU as well.  I'm sure that 1000W unit you got will be more than enough.
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April 12, 2011, 04:48:56 PM
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i'd gone for a 750 or 800+ corsair PSU, imo they're more reliable.

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allinvain
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April 13, 2011, 12:20:44 AM
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i'd gone for a 750 or 800+ corsair PSU, imo they're more reliable.

I agree. HX1000W is the one I have and it's a beast..it should easily handle two 5970s let alone 5870. HX850 would be a good one. The TX series are excellent as well. But if I'm not mistaken Corsair's power supplies are typically a bit more expensive than the competition. I think the Cooler Master power supply suggested here is a good one too: https://en.bitcoin.it/wiki/Mining_rig

$150 is not bad Smiley

Noitev
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April 13, 2011, 03:41:45 AM
 #16

well things look good. everything but the cpu, case and a mouse (oh no) are here. installed the ram, waiting patiently...
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April 13, 2011, 12:04:22 PM
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I thought you would have more experience with the specific info. but meh. How much would a 1ghash dedicated miner cost anyway?

depends if you mind buying used etc.

A dedicated miner, IMO, should at least have 2* 5970 or 6990s, but IMO, a dedicated miner should be 4* 5970 or 6990 (using linux), as that is what will give the best return on your investment. Dedicated miners are a risky business if you pay for electricity, and even more risky if you pay more than 10cents the KW/h
Isn't all of the U.S at least 12 cents KW/h?
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April 13, 2011, 12:06:46 PM
 #18

You have a lot of unnecessary equipment for a dedicated mining machine imo. Also, when you factor in electricity cost and mining difficulty increasing I'd be interested to know how long it would take for you to eventually generate enough BTC to cover the cost of your equipment. I'd guess 9 months if it's running 24/7.

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