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Topic: building a mining rig with $1800 - page 2. (Read 6053 times)

newbie
Activity: 47
Merit: 0
May 30, 2011, 09:17:49 PM
#8
also, from a mining standpoint, crossfire is bad idea. (degrades performance)
Crossfire hasn't made a difference in my numbers, opencl still uses each gpu individually, it just eliminates having to hookup another monitor or dummy plugs.
newbie
Activity: 45
Merit: 0
May 30, 2011, 09:16:34 PM
#7
don't buy that expensive motherboard. just get a cheap one, and use risers/extenders to utilize all the pci-e x1 slots. Also, you're wasting money with your i7, just get a AMD motherboard + cheapest CPU.

Everything i said above only applies to a dedicated miner, if you're using this for gaming, this build looks decent.

Where do you find your extenders? And are extenders no good for gaming?!
legendary
Activity: 2058
Merit: 1431
May 30, 2011, 09:12:49 PM
#6
also, from a mining standpoint, crossfire is bad idea. (degrades performance)
newbie
Activity: 28
Merit: 0
May 30, 2011, 09:11:51 PM
#5
Why would multiple cheaper rigs be better?  The issue is the insurance, I have to give an equivalent build, I can't tell them two computers haha.

that does look pretty cheap, and I can do up to 3 cards in xfire, correct?  Yeah I heard antec's ps was better, thanks

Ah, well my idea was multiple computers, more GPU's, but if you can only do one rig...

How does this insurance work?
You don't get to keep the full $1800?

From what I've read that MSI board should handle quad crossfire at x8 speeds.

legendary
Activity: 2058
Merit: 1431
May 30, 2011, 09:10:33 PM
#4
don't buy that expensive motherboard. just get a cheap one, and use risers/extenders to utilize all the pci-e x1 slots. Also, you're wasting money with your i7, just get a AMD motherboard + cheapest CPU.

Everything i said above only applies to a dedicated miner, if you're using this for gaming, this build looks decent.
newbie
Activity: 17
Merit: 0
May 30, 2011, 08:56:53 PM
#3
Why would multiple cheaper rigs be better?  The issue is the insurance, I have to give an equivalent build, I can't tell them two computers haha.

that does look pretty cheap, and I can do up to 3 cards in xfire, correct?  Yeah I heard antec's ps was better, thanks
newbie
Activity: 28
Merit: 0
May 30, 2011, 08:43:06 PM
#2
You can save a lot of money if you go the AMD route and do an MSI 890FXA-GD70 motherboard.

Also, you can get the Antec 1200w PSU Quattro for $200

Versus what you have selected, if you're doing this for mining, it would be the smarter option.

You could probably save enough money to build 2-4 rigs total.
Which would kick the crap out of the single rig you're thinking of getting in terms of hashing power.
newbie
Activity: 17
Merit: 0
May 30, 2011, 08:39:21 PM
#1
Hey guys,

So out of a ups blunder they completely destroyed my old desktop (dropped from like 10 feet or something).  I got $1800 worth of insurance, and I'm planning on using all of it on a new mining computer.  I liked this older post: http://forum.bitcoin.org/?topic=2610.0 but I know things have changed a bit and a couple of those motherboards are over with.

So I'd love some advice on what I should be purchasing for this rig, here's my current build:

(EDITx7)
Case:MYOPENPC BENCH King $60
PowerSupply:CORSAIR Enthusiast Series CMPSU-850TX 850W $130
CPU:AMD Sempron 140 $40
RAM:Corsair 3GB$40
Motherboard:MSI 890FXA-GD70]MSI 890FXA-GD70 $200
GPU: 3x5850 (I already have 2 unbroken)$450
TOTAL:~$1000
Also with x16 expansions so around ~$1050 at the end.
Then I'll buy two 6970's for gaming rig (that i'll complete later), leaving me around 1750
Thanks to SchizophrenicX and bcpokey for suggesting this build!

For a dedicated miner build, what do you guys think?

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