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Multiprocessor Computers F@H discussion - Page 25

post #241 of 581
Thread Starter 
Quote:
Originally Posted by Linden View Post

Quote:
Any 650 or great Watt psu will do.
Hoth, I would recommend high quality 750 and greater. I don't doubt that a good quality 650 Watt unit would suffice, but IMO, you need more headroom. Keep in mind, when a 4P goes into a case with the necessary case fans for both CPU cooling board components cooling, you'll be drawing more power than running nekkid on the bench. That may seem obvious, but here's an example: my G34 4X6136 draws just under 600W under Folding. That's without an overclock (not yet, at least biggrin.gif) and only one hard drive.

When just sitting on a bench my 4 x 6174 takes up 520w.
When in a case with fans at 4400 RPMs my 4 x 6128s take up 500w.

A 1000w unit is ideal, you are right a 750w-850w is what to shoot for, but I think when on a budget 650w is is just fine. Of course, you want a psu with a rated wattage at double you pc's because psu's wattage pulled at the wall is a bell cure.

I recommended the 650w because he is on a budget, going for some 8 core chips (w/o an OC) and because the price goes up quite quickly with gold standard PSUs.

Alright, a picture of my updated setup. The board in the middle is my only tyan, and is the only one not currently folding. The SM on the right is running the 6128s now, on Wed my 6134s come in, and then the 6128s will go to the tyan. Once all the chips are in, I will be all set and will get the 6174s and 6134s overclocked.

IMAG0201.jpg
post #242 of 581
Hey, what's that table fan's power requirements, huh, huh? rolleyes.gif

Your point is valid, Hoth. Budget or not, I think every serious Folder should - if at all possible - have power headroom with the PSU for come what may in the future. Saving $20 on a PSU now really hurts if the upgrade 12 months from requires a new, more powerful PSU. But then, ever time we upgrade, we are rolling the dice a bit, aren't we? wink.gif
    
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different for each comuter - SSD and multiple S... I really don't think people care, do they? Main, Megahalems (I7 4970 K, "Devil's Canyon");... Folders, Ubuntu 12.04; main rig, Windows 8.1 (... 
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Opteron 6172 (4P), Opteron 6174 (4P), Opteron 6... Supermicro H8QGL-iF, (2X) Supermicro H8QGi+-F, ... GTX 670 (main computer), onboard Matrox 200 (4P... Main, 16GB DDR3 2133 (Socket 1150); 4P Folders,... 
Hard DriveOptical DriveCoolingOS
different for each comuter - SSD and multiple S... I really don't think people care, do they? Main, Megahalems (I7 4970 K, "Devil's Canyon");... Folders, Ubuntu 12.04; main rig, Windows 8.1 (... 
MonitorPowerCase
main rig, dual 24", 1920X1200 (no letter box fo... 750W-1000W Enermax, Seasonic, Corsairs (4P comp... CM Stacker 830, CM HAF 932, CM HAF X,Rocketfish... 
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post #243 of 581
Buckwheet, Hoth17 and all folders, mind to check and comment my 2p configuration, I try to make it cheap as possible:

Mobo: Supermicro H8DGi-F $518.44 Shipped
link: http://www.wiredzone.com/Supermicro-H8DGi-F-Motherboard-E-ATX-w--Two-Socket-G34-~10020480~0.htm

CPUs:2x 8 Core Opteron 6128 $314 Shipped
link: http://www.ebay.com.my/itm/AMD-Opteron-6128-2-GHz-Eight-Core-OS6128WKT8EGO-Processor-/390373758520?pt=CPUs&hash=item5ae416d638

*Both of the item i will buy from overseas as my local market dont have it..is it safe to post this two item from overseas to Malaysia..what are your recemmendation on the courier system?? this my first time using ebay and buying outside from malaysia..hope you can guide me well

CPU overclock: None

Ram: Can this motherboard support non ECC ram..if can i would like to use my sig rig 4GB x2 corsair value ram and adding 4GB x2 corsair value ram for the other socket..means 8gb of memory per socket..How do you think..??

Coolers: 2x Cooler Master 212+, one i used back the sig rig cooler and will buy a new of other socket..How about THE MOUNTING HOLE for G34..do i need to do some modification to the mounting clips on the cooler..??

Power Supply: 1000W Silverstone OP1000 (used back from sig rig)..will this be sufficient for 24/7 operation??

Hard drive:500gb Samsung F3( used back from the sig rig)

OS: Ubuntu server 10.04 + the kraken..can you tell where the step or tutorail to install this both thing..??

Target ppd half from you around : 234/2 = 117K ppd..
Edited by Hackcremo - 1/1/12 at 7:06pm
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post #244 of 581
You want to fill every memory slot more than you want overall amount of RAM. That is why I went with just 1GB sticks. You are overpaying on the 6128s, offer him $100 each and he should take it. Put the rest of the money into RAM or buy the 4p board for later upgrades.

Everything else seems to be okay. For the price you are looking to spend it might be better to try for a SR-2 with Xeons, once overclocked they will produce more points. I can't talk about sales yet because I don't have the requirements, but for around $1000 the best investment is a SR-2 in my opinion. Could I list something on Ebay and have a member of OCN say its a good deal for folders?! hah!
    
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post #245 of 581
Thread Starter 
Buck is right, the 4p board is a far better deal. Get this board. http://www.wiredzone.com/Supermicro-H8QGL-IF+-Motherboard-SWTX-w--Quad-1944-pin-S-G34~10021077~0.htm 6128s are not worth while until you go 4p, and the price difference between 4p and 2p boards make going with a 4p board a must. The sr-2 is good, but 4 x 6128 will out do it, sure you may not have the money now, but there is room to expand with a 4p board. There is no 4p option with an sr-2 no octo cores. If you are building a > $1000 folding rig right now, there is no excuse not to get a 4p g34 and then however many 6128s you can get.
post #246 of 581
How many people who have or plan to get a 2P/4P system are going to fold for OCN?
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post #247 of 581
Quote:
Originally Posted by Donkey1514 View Post

How many people who have or plan to get a 2P/4P system are going to fold for OCN?

haha im gona crunch world community grid for xs... lol
     
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post #248 of 581
Quote:
Originally Posted by Donkey1514 View Post

How many people who have or plan to get a 2P/4P system are going to fold for OCN?

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post #249 of 581
Hi,

I am keen to build a multicore rig, 4P type. Purpose of this rig will be to crunch computational fluid dynamics stuff for work use. The CFD software can use/access the individual CPU cores via MPI, typical to use 8-12 cores and ram usage typically exceeds 24G.

I have attempted my own at home experimenting with a few rigs such as SR-2 with 2 x L5640 (in progress, waiting for the Lian Li PC-Z70 casing to arrive in 2 months time!) and Supermicro XDai with 2 x W5580.

Currently i am considering spending about USD$2,300.00 to get a pair of X5690 (retail-used) and SR-2 (no chasis, psu etc) OR go for what i have been reading in this forum which seems to make economic sense to me.

Personally this will be my 1st venture to use AMD and will appreciate views on my thinking to use a 4P AMD. My main issue at this juncture is how to house the server board?

Thanks

Lawrence
post #250 of 581
I believe the HAF932 will hold the SWTX motherboards. Its not my favorite case, but its readily available and can get pretty cheap on sale.
    
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