View Full Version : 3960x
12-08-11, 09:27 PM
Got my rig up... Sofar (will update sig soon)
TPF 1:40 ~ 42,200 PPD on project P6972
OC'd to 4.5Ghz with only 1.275 on the Vcore
Next push is to 4.8... If all is well and good 5.0 or until I reach max heat
I will fire up the GTX 560's soon, but I was having issues... Second card is giving "unstable machine" so I will just stick with the CPU for now. Heck, I am making 12000 ppd more than my last rig with just this CPU running... I <3 twelve threads ;-)
12-09-11, 10:54 AM
Nice, my 2600k will not push past 4.4 at 1.33vcore. Though without adjustable LLC on my mainboard that doesn't surprise me.
12-11-11, 11:58 PM
Jacking my own thread, since this is a 3960x related problem... I figured out my performance issues... I am "overclocked" to 5.0Ghz... But I just realized when my client it kicked in and when my VGA's kick in, it DOWN CLOCKS from a multiplier of 50 down to 33... the chips base speed without turbo.
Does anyone know how to fix that? Basically after 10-45 seconds, the chip does a REVERSE and goes DOWN in clock speed!!! WTF????
So after banging my head against the wall... all the times I have been reporting in my other thread, thinking It was the GPU's, It is my overclock. Does it have to do with watt displacement or something? heat at TDP? If there is anyone out there that are good at overclocking Snadybridge-E... PLEASE HELP!!!
12-12-11, 12:12 AM
I just turn off EIST in the UEFI and run constant multiplier such as the Intel techies do--or so I've read. Otherwise, you have to up the individual TDP settings in the UEFI. Having never gone this route, maybe one of the OC gurus on the team can sort you out. This i7 was my first Intel OC being a long, long time AMD man.
12-12-11, 12:13 AM
after referencing the google... I seen something about messing with a setting in BIOS on the Watts... like a setting of 300 or something like that.
12-12-11, 12:15 AM
300 would be more than sufficient probably. I just dont see the point of using turbo settings if one is folding constant
Have you read the ASUS guide for OCing the Rampage IV?
12-12-11, 09:09 AM
Seen that, but it seems to be just a little more in depth than the motherboard manual. I loaded a preset OC at 4.3 for now that is holding stable. I will keep researching until there are more people with my similar product.
You need to turn up the power setting for CPU from 100% to 180%. That should allow this overclock no problem. Could also be the VCCSA power setting, crank that to 140% and no more worries.
12-12-11, 10:58 AM
It would be much easier to explain if all the MB manufacturers would get together on the arrangement of options in the UEFI (BIOS). They could just grey out advanced options that were not available on lesser models. But like that is never going to happen.
12-12-11, 11:51 AM
tried that, and it still throttles... since this has turned into an OC specific thread, I made the appropriate topic over at the intel (http://www.overclockers.com/forums/showthread.php?t=694212)section of the forum.
On a side note though, with the 4.7Ghz Gaming Setting, I am not throttling under folding load, and my TPF on p6981 is 1:41 with 2 GPUs folding at 13.5-14K each, net worth of ~70K PPD if I stop tweaking with crap! That is more what I wanted to see!
What I did is just went into the power section and set every single current limit to the max, that way it never gets in the way of overclocking.
EPU Power Saving Mode: Disable
CPU Current Capability: 180%
CPU Power Phase Control: Extreme (or it can be grayed out if you changed other settings)
VCCSA Current Capability: 140%
CPU VTT Over-Current Protection: This is the one I think you missed, MAX that out, I ran into this being an issue much lower than 4.7GHz
DRAM-AB/CD Current Capability: 130%
12-12-11, 06:29 PM
Thanks much, I'll give that a try in a few, and post back with results in this thread:
12-13-11, 02:46 PM
VRM was heating up too much. Changed from T. Probe, and lowered a frequency to stock. The high freq was causing to much heat for the VRM cooler... Need a north bridge water block if I want to push higher on that freq. all is good now p6099 @ 4:36 TPF, with both GPUs running. 5ghz @ 1.45 Vcore and 70c max temp load
You do not need a block! Just aim a fan at the top most heatsink, mine barely gets hot with a 120mm fan blowing over the cpu/ram area. This is with top frequency. You will want to set them back to temp controlled, it's much safer unless you are using sub zero. There is also no northbridge on these boards, just the ich. The heatsink over the i/o area is just to dump heat from the VRM above the CPU. The heatsink below the cpu is just for dumping ICH/VRM heat as well. The most important one to cool is above the cpu.
12-13-11, 06:41 PM
I am adding another fan now. Not much space to hang it right, but thank goodness for Zip ties. My case wont win any prizes for looks... also, my top vent fan is reversed so it blows down into the case.
I just hang a fan from a screw hole using a bent pci cover, ghetto, but it's perfect placement.
12-13-11, 08:15 PM
Steve, I've brought the GTX 560 online yielding +12K PPD before overclocks and tweaks. Not too bad considering my 560 has 7/8 the SM's that your 560ti's have onboard. Now going to throw the parts together to get the quad core on its feet. May have to mount that quad on piece of plyboard, T32 style :attn:
12-13-11, 09:09 PM
Ok, I didnt want to do this, but I am getting me a open rack and throw my i7 920 and x2 GTX 285's back on line!!! LOL! My buddy would kill me... But christmas may come early for me... with a possible few days of Blade's folding for me... If my uncle is still game ;-p but it wont work for me for too long!
Heck, this 3960x rocks... I should have gone with the 3930k though, and put the other part of the money to x2 GTX 590's and a monstor PSU... I love no utility bills ;-)
Bang for the buck isn't in the high end GPUs. You're better off in terms of both ppd/KWh and ppd/$ with the SMP client. 2 x 3930k with no gpus would be better or one 3930K and one 2600K.
I haven't done the calculations on either the 3930K or 3960X, but I believe the bang for the buck has moved to the server class 4P systems with 4P Magny-Cours or Interlagos CPUs, at retail $6000 gets you 520,000 ppd at 16.8 KWh, 86.66 ppd/$ and 30,532 points/KWh. With Interlagos, $4000 gets you 430,000 ppd at 18 KWh, 107 ppd/$ and 23,888 points/KWh. I know you're not paying for utilities so points/KWh isn't crucial, but even so a GTX590 gets about 34,000 ppd at $700 and gives you 2702 points/KWh and a mere 48 ppd/$. A 2600K without BA work in comparison gives you about 70 ppd/$ and about 5833 points/KWh. A 560 Ti comes in at about 15,000 ppd at $220 and gives you 68 ppd/$ and 3125 points/KWh. If you just have to use GPUs, 2x 560Ti is a better solution than one GTX590.
In the above numbers, I made the gpu folding look better than it really is. I used the power consumption under load less idle on the gpus but compared it to the total power consumption on the CPUs. Also I used the total ppd on the GPU client and not the net gain from adding a GPU with a SMP client on the CPU. And even making it look better than it is, it's still far worse in terms of ppd/$ and points/KWh.
12-14-11, 09:23 AM
Since this thread is taking on legs of its own,
Yes, I cringe every time I remember that when I'm folding on my son's pc, the 4870 is just sitting in the box sucking down wasted power since it isn't worth folding on even in the winter. All my GPU's have primary roles outside of F@H, and I wouldn't invest in one for the sole purpose of folding--or even a more expensive gpu for more points. However, this opinion will evolve when PG decides to give just points to the gpu contributions.
On the issue of server class machines, the problem is obviously upfront cost of admission. This is a level of game only played by the 1%'s. In my mind it is just a completely different tier of competition, and typical folders shouldn't be discouraged by the PPD generated by the x100k crowd. That said I'm totally grateful they fold for T32, keeping us at a world class level ;)
I proposed that the server class machines running BA work be reclassified into a new project called Folding@Work. Probably went over like a lead balloon.
12-14-11, 10:56 AM
Well, I'm grateful that you are at least there to plead our case. Thanks again.
12-14-11, 11:09 AM
True that... Once I have 4-6k to spend again, It will be some sort of server, with no GPUs!! But, being winter, I like the extra heat ;-P
4p amd system should dump at least 650w of heat. Better than 2 gpu's. :D
12-14-11, 02:27 PM
I proposed that the server class machines running BA work be reclassified into a new project called Folding@Work.
Probably went over like a lead balloon.
Probably.......But still damn funny :thup: (And accurate)
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