Project El Beasto. Dual Processed EVGA SR-2 with EVGA Classified Ultra GTX 580 SLI

DamoTourettes

DamoTourettes

DamoTourettes

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14 Dec 2010
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Just a little machine I've been building at work here for a developer that requires basically the fastest box on the planet. Kit list:-

1 x EVGA Classified SR-2 Motherboard
2 x Intel Xeon X5690 CPU's
2 x Corsair Dominator GT 12GB (4x3GB) DDR3 PC3-17000C9 2133MHz Dual/Quad Channel Kit
2 x Noctua NH-D14 coolers
1 x Enermax Netzteil 1200W Platimax Power Supply
1 x Lian Li case
2 x EVGA GeForce GTX 580 Classified Ultra 3072MB
1 x Seagate Barracuda XT 2TB 7200RPM SATA 6Gb/s 64MB Cache
1 x OCZ Agility 3 240GB 2.5" SATA-3 Solid State Hard Drive

Machine currently running at 4.2Ghz, (multi of 26, BCLK of 162), most other timings default. Still learning about overclocking 1366 (help appreciated!) and am a bit out of my depth, but am learning. Haven't had time to push the GTX 580's either, however they come with a base clock of 900Mhz and can eat anywhere up to 1000w of power *each*, so I'm thinking I should be able to get 950+ out of them on air - we'll see.


IMG_0490.jpg
 
I presume with that config you dont have the additional 6pin powers connected for the CPUS.

Also really?! the GPUS can full 1000Watts each! why only a 1200Watt psu then? something seems amiss irrc 6pin PCI-e power plug + 8Pin PCI-e power is rated for 300w max draw so I cant imagine 3x 6pins can draw over 1000w..that seems wrong.

Cool rig though wish mine looked that nice!!
Whats the final HDD config going to be and whats the machine going to be used for?
 
No, have only got the single 6 pins going into the CPUs - for a 4.2Ghz OC it's seemingly enough - cooling is the problem above and beyond this clock speed.

And yeah, the GPU's can eat 1000w EACH - which is just crazy. Power to them is via 2 x 8 pin + 1 x 6 pin *per card*, and you're right -1200w just isn't enough. This is a bit of a test box initially, and just getting it all running at the moment it's drawing an easy 1050w at the wall which is troubling. Eats 330w just idling on the desktop at boot, due to CPU overclock config. I'm upgrading to the 1500w Enermax Platimax sucker (arrives Monday), which should be enough for this rig if I push the GPU's to about 950Mhz each on the core, along with maintaining my present [email protected].

As for what it's going to be used for? Financial modelling using Matlab where it'll be under 100% load for 3, maybe 4 days on end before getting a break. The current setup is just a prototype though... if this works we'll be looking at something similar except with dual Xeon E5-2600's and Quad SLI Kepler. The thing with the Xeon E5's is they're 8 core which is nice, but as they were only released Monday I need to see where we stand with them and what speeds we can get - they come at default of 3.1Ghz and I'm not sure how far I can go with overclocking them before heat starts to bomb them out.... watercooling maybe? :)

Oh, and Greg, if you've got a minute I'm still a bit confused about the SR-2 overclocking - I've got the settings as follows:-

CPU Vcore - 1.27v
Multi - 26
BCLK - 162
QPI

Apart from that, everything else is set to Auto.

"Memory" settings within the SR-2 BIOS set to 1033. Can I run this at 1333? What I'm basically just trying to do is get the maximum memory overclock out of the box without destabilising it...


And here's the existing box running Folding@home with 100% on the CPU's as well as the GPU's...

folding.jpg
 
Looks good but you're vastly over estimating the power usage. Evga list it as needing a 600w psu (min 42a on 12v which is 504w). The 1000w they mention refers to how much power could be ran through the cards power circuits, not how much it will use so you dont need to worry about tracking down a bigger psu :)
 
Hi Damo,

Yes try adjusting the MCH strap and Memory strap to get the default speed to 1333 should be on the frequency bios page just under the "current" speed

Personally like you say with the heat issue, I wouldnt push much more than 160 BCLK since some issues which arise with the board in terms of instability or failure happen around 180 bclk and with your environment It should help to keep the system cool and have good longevity.

Im surprised you dont need more IOPS for that rig since the test period is so long but Ive no experience with matlab.

As for the SRX and 2011 xeons I commented on your other thread in the OC section
 
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