decent rig?

J

J-Will

[H]ard|Gawd
Joined
Jan 10, 2009
Messages
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Been looking to get started in folding for a while but want a good rig at a great price. So I've been ebay and craigslist mining for a while and came across a machine with these specs:

Model: Dell Poweredge 6950
CPU: 4x Opteron 8354 quad core processors (16 cores at 2.2ghz each)
RAM: 32gb DDR2 REG ECC (16x 2gb sticks)

Is $600 good price? Is this a good rig for folding? Points/ Power in an ok range (quad CPUs will suck power). I like this because I could pop in GPUs too (would you all say this is a good option?)

If I end up not pulling the trigger I will post the link
 
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Don't do it, the cpu's are old tech and you can pick them up for peanuts on ebay, it will suck power and ppd will be crap.

If you are serious about a folding rig - post a thread in the main DC forum with a budget and any other points - power consumption, heat in your area etc and we can easily recommend some thing better
 
Nathan_P said:
Don't do it, the cpu's are old tech and you can pick them up for peanuts on ebay, it will suck power and ppd will be crap.
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I figured it would draw a ton of power, but I figured the ppd would be high.

Thanks for the feedback
 
I think at best you would be looking at 20k. IIRC there were a couple of members running 4p arima boards and that what was they were seeing.

20k is what an i7 will make on a bad day whilst using a quarter of the power
 
Nathan_P said:
I think at best you would be looking at 20k...
Click to expand...

This is not true. I have Arima system (Ubuntu 12.04) with 4x8350HE (2.0GHz) cpus and 16x1GB DDR2-667 - PPD range is 31~38K, power ~ 370W. I paid for it under $300.00 (no case).
 
Here's some boxes I have running so you get an idea of what to expect on power draw, ppd, and wu.
2p xeon L5530's ubuntu 10.10 & v6.34 client 200w from wall=30-33k ppd
Core i7 [email protected], gtx 670 win 7x64, v7 client 730-750w from wall=50k-65k ppd
Same setup as above, add in GTX 570 830-855w from wall=65k-90k ppd
4p g34 @3ghz, ubuntu 10.10, v6.34 client, 1000w-1100w from wall=490-750k ppd

Wattage was measured either off of apc or killawatt and ppd per hfm.
 
my 4p g34 6128 at 1.8 ghz stock, ubuntu 10.14, v6.34, 500-520w from wall = 163k ppd depending on parts you might be able to find the pieces to make a naked system like this for under 1k, if you are diligent about looking for deals possibly less.
 
wings2004 said:
my 4p g34 6128 at 1.8 ghz stock, ubuntu 10.14, v6.34, 500-520w from wall = 163k ppd depending on parts you might be able to find the pieces to make a naked system like this for under 1k, if you are diligent about looking for deals possibly less.
Click to expand...

I like the way this sounds
 
wings2004 said:
my 4p g34 6128 at 1.8 ghz stock, ubuntu 10.14, v6.34, 500-520w from wall = 163k ppd depending on parts you might be able to find the pieces to make a naked system like this for under 1k, if you are diligent about looking for deals possibly less.
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I believe the 6128s are actually 2.0GHz at stock, correct?
And if you swing the right MB you can run these at least 20% faster with the OCNG BIOS.
Additional pluses for this system is it's buildable/useable 1 CPU, ram set and cooler at a time allowing you to stagger out the costs.
Then you can continue to upgrade by moving up to 12 or 16 core CPUs as they become cheaper as older/used components.
One of my sig rigs started out as 6128s.
 
Here's another one. Dual xeon L5640's, stock clocks - 217w from the wall (it can be lower - need a better PSU) and 44-53k PPD
 
Nathan_P said:
I think at best you would be looking at 20k. IIRC there were a couple of members running 4p arima boards and that what was they were seeing.

20k is what an i7 will make on a bad day whilst using a quarter of the power
Click to expand...

Say rather that 20k for an i7 is the max you will ever see folding SMP without OCing the hell out of the proc.
 
Skripka said:
Say rather that 20k for an i7 is the max you will ever see folding SMP without OCing the hell out of the proc.
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Agreed.
20K could be standard for a stock clocked i7, tho it kind of depends upon the core count and clocks. My 970 at stock could probably beat 20K for instance. You're gonna pay through the nose for a i7 hex.

20K is the best day for my i7 920 OCed to 3.9
35K is a standard day for my 970 OCed to 4.15
35K is also a standard day for a 2600K @ 4.5

The last one is OCed on air not water, so you can get some crazy clocks out of a IB/SB. This makes a 2600K a dead cheap rig to build, a good number of points, and low power draw.
 
I get 28-33k ppd on a 4.3GHz i7-3820 (in windows, using http://www.linuxforge.net/docs/crunching/fah-vmware.php )

The low end of that number is caused from casual computer use, with heavier tasks making it dump down even lower (16k ppd if I'm watching flash videos / using Adobe products / Google earth). But letting it totally idle it shoots right up to 31-33k. If I ran straight-up linux on this thing I'm sure I could get another few thousand out of it.

My dual L5420 (core 2 era, 8 cores total at 2.5GHz) machine got 14-16k ppd when running that vmware linux image, I now have ubuntu on it again and I'm getting 16.5-18.5k ppd out of it.
 
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