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$400 Folding Rig - Page 3

post #21 of 34
Quote:
Originally Posted by LOL_Wut_Axel View Post
Well, I don't know what to do now. What PPD can I get out of a 2600K at 4.6GHz using the -bigadv flag? I don't recall.

There's also people saying that I should get the motherboard with many PCI-E slots. But with P67 you can't do that unless you get a super expensive motherboard with the NF200 chipset. What will bring the lower power consumption and the most PPD and lowest price?
An I5/I7 2500k/2600K will use less power than two GPU's and bring in a much better PPD. I know Jedi On our team gets 40K PPD from his 2500K @ 5Ghz in Linux... I imagine the 2600K at the same speed would do ~45K PPD.
 
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post #22 of 34
Quote:
Originally Posted by TheReaperWaits View Post
An I5/I7 2500k/2600K will use less power than two GPU's and bring in a much better PPD. I know Jedi On our team gets 40K PPD from his 2500K @ 5Ghz in Linux... I imagine the 2600K at the same speed would do ~45K PPD.
Im doing 52k @ 4.8Ghz on a 2686 wu running W7. A 5Ghz 2600k in Linux is closer to 60k PPD.
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post #23 of 34
Thread Starter 
Quote:
Originally Posted by Desert Rat View Post
You can have this or save $100 with a 2500k. Just get a cheap case, drive and dvd.

Edit: At 4.6ghz you will get around 46k ppd running W7 and over 50k running Linux.
Okay. From what I'm hearing with the 2500K you get around 38K PPD at the same clock speed running bigadv. 40K at 5GHz. But if you decide to run smp and GPU, you have to dedicate threads for the GPUs, which would mean a lot of lost performance. So I think it's better to get a low end P67 board, over-clock the hell out of the 2600K, and run with a low-end GPU. But then again, I'm limited to that only. I'd have no way to expand. If I want to run a GPU, I guess I'd have to take away two of the threads to dedicate for the GPU, which would mean lost PPD.

Can anyone chime in on this?

EDIT: how much performance would I lose if I decided to get a P67 board with two PCI-E connectors and in the future dedicate two of the 2600K's threads to two GPUs?
Edited by LOL_Wut_Axel - 4/29/11 at 2:00pm
    
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post #24 of 34
I will tell you my experience so far. I was running my 2600k @ 4.6ghz with 2 GTX 460's for around 62-64k PPD. Thats running -smp 7. So you spend close to $275 for 2 gpus, use an extra 250 watts and have to get a bigger psu for an extra 22k PPD. My other option was to oc my cpu to 4.8Ghz for 48-52k ppd and save 250 watts and over $275. You do the math.
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post #25 of 34
Quote:
Originally Posted by Desert Rat View Post
Im doing 52k @ 4.8Ghz on a 2686 wu running W7. A 5Ghz 2600k in Linux is closer to 60k PPD.
.

That is awesome.
 
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post #26 of 34
Thread Starter 
Quote:
Originally Posted by Desert Rat View Post
I will tell you my experience so far. I was running my 2600k @ 4.6ghz with 2 GTX 460's for around 62-64k PPD. Thats running -smp 7. So you spend close to $275 for 2 gpus, use an extra 250 watts and have to get a bigger psu for an extra 22k PPD. My other option was to oc my cpu to 4.8Ghz for 48-52k ppd and save 250 watts and over $275. You do the math.
Okay. Do you think this would make sense?

Antec TruePower New 650W: $80

G.Skill NS 2GB DDR3: $20

Kingston DataTraveler 4GB $8

Scythe Mugen 2: $40

Core i7 2600K + MSI P67A-G43 $330

Subtotal: $568
Total: $614

I'd be adding two GPUs in the future and dedicating two threads to them. How much would it lower performance on the 2600k?

EDIT: i'm just starting to think it's better to just do either smp or GPU folding and not both since you have to sacrifice smp a bit.
Edited by LOL_Wut_Axel - 4/29/11 at 2:26pm
    
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post #27 of 34
To be honest I dont know much about that mb and the cooler. Every thing else is ok. The Asrock extreme 4 is a good option too with 3 pci slots and is about $30 dollars more.
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post #28 of 34
Thread Starter 
Quote:
Originally Posted by Desert Rat View Post
To be honest I dont know much about that mb and the cooler. Every thing else is ok. The Asrock extreme 4 is a good option too with 3 pci slots and is about $30 dollars more.
The motherboard from what I know is good. Most people get what's normal for the 2600K on it (4.5GHz to 5GHz). The Scythe Mugen 2 I am VERY confident in. One of the best air coolers on the market overall, especially at its current price.

So I think you've convinced me to simply do smp folding. If I go with a lower-end PSU I can save $35.
Edited by LOL_Wut_Axel - 4/29/11 at 2:34pm
    
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post #29 of 34
http://www.bit-tech.net/hardware/cpu...idge-review/11

2600K @ 4.85GHz sucks up ~234w under full load. So to get you started a 350w should do
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post #30 of 34
It seems it would be more cost effective to just build a few 2600k rigs and add a single GPU. Lol, I look at the topic name. "$400" has pretty much been thrown out the window
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