More on being a paradoxical contrarian and finding a oneness in all things in life
Thanks Tutor,
...
1) BIOS settings;
Advanced Settings:SATA Configuration:Configure SATA#1 as [AHCI]
Power Management Features:ACPI Configuration:General ACPI Configuration: Suspend Mode: [S3(STR)]
Power Management Features:ACPI Configuration:Chipset ACPI Configuration: High Precision Event Timer: [Enabled]
Frequency/Voltage Control:CPU Configuration:Intel® SpeedStep() tech [Enabled]
Frequency/Voltage Control:CPU Configuration:Intel® TurboMode tech [Enabled]
Frequency/Voltage Control:CPU Configuration:Intel® C-State tech [Enabled]
I'm gathering this is the setup you're talking about. I've had others give conflicting input about disabling TurboMode and C-State while others said it doesn't matter. I'll use it though.
I asked for all this help because for the last few weeks things have been working fine with myHack and the rest of the install process and I was reaching 3.8GHz on the 5650's but I don't think the 48GB of Kingston RAM was working well with the CPUs, because I started seeing things on Mac windows starting to get "jaggedy" (like 2 frames per second; kind of like an old film - not smooth) in it's operational flow... .I was thinking of getting of getting this RAM:
http://www.newegg.com/Product/Product.aspx?Item=N82E16820161459&Tpk=wintec 48gb
... I see d00d had only 24GB of RAM running on his system. So maybe it's got something to do with that.
This is the ram that I use - CORSAIR XMS3 12GB (3 x 4GB) 240-Pin DDR3 SDRAM DDR3 2000 (PC3 16000) Desktop Memory Model CMX12GX3M3A2000C9 [
http://www.newegg.com/Product/Product.aspx?Item=N82E16820145326 ]. I have been running 48 gigs of it in WolfPack1 that has a pair of 5680s and 24 gigs of it in WolfPack2 that has a pair of 5675s. Note that it's, at least, two steps higher than DDR 1333 (the speed rated for our boards). That's because raising the BCLK also raises the memory speed, requiring ram with greater tolerance ability to run safely at higher speeds. I don't have any experience or other information about the quality of the brand you are looking at. Also, I have no problem with your choosing ECC ram - it does, however, tend to run a little slower than non-ECC ram. However, I can tell you that I would
never get far as I have tweaking a system to yield better performance without using ram with the headroom to withstand running at higher speeds, without relaxing the timings. I haven't had any problems with the Corsair ram in either system. So, if you like Wintec ram and want the benefits of using ECC ram, I do recommend that you avoid purchasing DDR3 1333 or 1600 MHz and instead consider DDR3 1866 or DDR3 2000 MHz ram as I have purchased. If you're using a BCLK of about 200, then your current ram is going to be overly stressed, unless you designate it, in bios, as 1066 or 800 MHz ram. Pushing your ram too hard might be the cause of your tearing problem. In sum, I have never experienced that tearing problem. I can designate my ram, in bios, as DDR 1333 ram without any headroom-related problems.
SR2Mac2 said:
Lastly, you said that you didn't have the 5650's and 5690's but only the 5680's. Great, but I did want to find out how much RAM you have on that system and if underclocking is the best method as I read that you reached 39,000+ in your Geekbench scores. Like I said, if I can get a hold of a pair of 5680's and sell my 5650's then I'd like to try your method of underclocking if you're willing to show me how you made that happen in your BIOS setup. Thanks again for getting back to me and taking the time to show me as much detail as you did.
There is no way that I could get the performance that I gotten if I did not underclock/turbobias my systems. I know that underclocking/turbobiasing can be done to 5675s and 5680s because I've done it to mine. I suspect that it can be done with 5690s and other members of the 5600 family, including your 5650's, but since I don't have any these other chips I don't know for sure. As a related aside, I've also done it to single and other dual processor systems with chips preceding the intro of the 5600s.
Please take a look at page one of top Geekbench scores [
http://browse.geekbench.ca/geekbench2/top ]. You'll see the scores achieved by 2, 4, 6, 8, and 12 processor systems (as well as seemingly anomalous scores of 37,900 for a 1 processor/4 core Xeon E5472 running at 2.999 GHz on a Parallels Virtual Platform and of 32,052 for a 1 processor/64-core SunSpark system running at 2.66 GHz). Note the processor speeds for the 2 processor systems. Leaving the seemingly anomalous 1 processor scores aside, all of the two processor scores, except for the 33,066 score (d00d - 3.7 GHz - OSX) and the 33,344 score (Echrei - 4.112 GHz - Windows), are for my WolfPacks. Even the unattributed scores are mine (I use Geekbench2 and Cinebench 11.5 to tune my systems). If you then look at pages 2 and 3 of the top scores, you'll see a trend - higher 24/7 clocked 2 CPU systems yield lower performance returns than my lower 24/7 clocked systems. Wouldn't you think it paradoxical if someone advised you, "If you want a fast computer, then slow it down, but if you want an even faster computer, then slow it down some more, but if you want the fastest computer, then really slow it down when compared to all of the other systems like it? I believe that most people would consider this advice paradoxical. However, as we get older, we learn the value of pacing ourselves and only using energy when there is a need to do so and using only so much energy as is called for under the circumstances. Isn't this like turbo boosting theory?*
For my WolfPack1 and WolfPack2, I use the settings that you've listed above as well as settings along the lines that I have listed in post #70 in d00d's thread. D00d advises us to enable all of the native power management related features of a Hac and to stay within spec VID, i.e., to pace it. Seasoned overclocker say do just the opposite. Is d00d just being a contrary dude? His advice is certainly contrary to what most overclockers advocate. Realizing that what someone has told you is contrary to what many others have told you can create cognitive dissonance->frustration. However, that one gives advice contrary to the crowd's does not mean that the one is wrong. Apple has espoused the philosophy, "Think Different[ly]." D00d's advice, because he had backed the truth of that advice up with his
results, forced me to think different and to consider taking his advice a step further than he had done. So, I decided to extend d00d's advice by underclocking my systems and maximizing their turboboosting capability, i.e., to pace them more than any other comparable systems [See, also, URL in sig]. If you think about how low those Sandy Bridge E5s are clocked and how wide their turbo range is extended, I hope that you'll see parallels, truths, and a oneness that I hope that you can extend to enrich all of us.
* Isn't it also like martial arts theory, the saying, "Less is more," and many other things in like?