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post #221 of 3800
Quote:
Originally Posted by bgineng View Post

3570k @ 4.6ghz should score about the same as a 2500k@ 4.8ghz. And if you're getting 90c in stress tests, you'll only get 65-70c in games.

Yeah cinebench scores almost the same at that comparison. Gonna futurmark tests at 4.6 and 4.8 since I have 4.8 and 5.0 on the 2500k.

3dmark vantage with both at 4.8ghz only gave the 3570k 300pts more but I'm JUST getting my feet wet. Still need the latest BIOS and a fresh windows install
Quote:
Originally Posted by MaFi0s0 View Post

92c for stress test is okay but some might not feel comfortable at that temp.
It throttles at 105 so you got some headroom.
Cool I might see how temps go. I will report batch number when I'm home
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post #222 of 3800
Quote:
Originally Posted by bgineng View Post

Can you explain what spread spectrum does? This is one option that I have no understanding of.

http://wdc.custhelp.com/app/answers/detail/a_id/3641/~/what-is-spread-spectrum-clocking-(ssc)-and-does-it-need-to-be-enabled

http://www.overclock.net/t/4084/spread-spectrum#post_29625
post #223 of 3800
Ok so from that I took away: don't use spread spectrum.

Thanks +rep
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post #224 of 3800
Just finished a 12hr run of prime with small FFTs. 4.5GHz @ 1.150 in bios. CPUZ was reporting 1.128 under load.

Anyway, I decided to play with the settings some more, lowered my vCore to 1.130v, set PLL to 1.55v. My LLC is on Turbo (Gigabyte UD5H).

I noticed something weird when I fired up prime, idle voltage is 1.128 but under load it drops to 1.116. Is that normal? I figured voltage would go up under load.

Going to do a few hours of small FFTs runs with the 1.130v setting to test the CPU stability, then i'll do the 12hr blend run required and post back when that's done.
post #225 of 3800
Quote:
Originally Posted by PMantis24 View Post

Just finished a 12hr run of prime with small FFTs. 4.5GHz @ 1.150 in bios. CPUZ was reporting 1.128 under load.
Anyway, I decided to play with the settings some more, lowered my vCore to 1.130v, set PLL to 1.55v. My LLC is on Turbo (Gigabyte UD5H).
I noticed something weird when I fired up prime, idle voltage is 1.128 but under load it drops to 1.116. Is that normal? I figured voltage would go up under load.
Going to do a few hours of small FFTs runs with the 1.130v setting to test the CPU stability, then i'll do the 12hr blend run required and post back when that's done.

Your voltage is dropping under load because of Vdroop. If you don't want it to drop as much as it is, increase LLC.
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post #226 of 3800
Quote:
Originally Posted by sean222 View Post

Well, I'm done until Haswell! Here are my final 24/7 results!
3770K 4.8GHz HT On @ 1.31v in BIOS.
CPU-Z reports 1.32v idle and 1.344v load.
All C-States disabled, Speedstep disabled, HT On, Spectrum disabled, Ram at XMP, LLC Extreme, PLL 1.55. Rest on Auto.
Temps got a bit high...but since my normal usage is Gaming, Web browsing, heavy multi-tasking, Photoshop weekly, Unzipping files daily, video conversion weekly, and watching HD MKV movies, my temps should be fine smile.gif I don't fold or do heavy image and video stuff.
At 4.9GHz HT On...it wouldn't pass prime unless Vcore was 1.36v in BIOS resulting in 1.384v load, no thanks.
Also, just for fun...4.9GHz was Prime95 stable at 1.33v HT Off.
Will spend a couple hours tweaking my new Trident X Ram and then I can finally enjoy this rig.
Thanks all for all the tips along the way!
338
338

Quote:
Originally Posted by Iketh View Post

turn spectrum back on!

Me likes it off smile.gif BLCK not overclocked biggrin.gif
post #227 of 3800
Spread Spectrum is beneficial.. unless you can find that it's not. Most of the Sandy Stable Club runs had it enabled.
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post #228 of 3800
Quote:
Originally Posted by samwiches View Post

Spread Spectrum is beneficial.. unless you can find that it's not. Most of the Sandy Stable Club runs had it enabled.

http://wdc.custhelp.com/app/answers/detail/a_id/3641/~/what-is-spread-spectrum-clocking-(ssc)-and-does-it-need-to-be-enabled <- specifically says "This is a good thing for telecommunications and other electronic devices. And, it may be a necessary thing for servers where groups of hard drives must operate in close proximity of each other. Or in labs where highly sensitive equipment is being used. However, it can be a bad thing for achieving maximum computer performance where speed and accuracy are critical, or over-clocking is being done. Computers rely on clean, sharp clock generated electromagnetic peaks in order to perform with speed, accuracy, and stability. Spread-spectrum clocking spreads the sharp, narrow peak into a flattened slightly widened group of peaks, which can hurt the computer's performance. Consequently, because of this peak "muting" caused by enabling SSC, the maximum clockspeed achievable in a computer system is diminished, and the overall performance can be affected.

If you don't absolutely need SSC enabled, then don't enable it. Those that should enable it, know that they need to enable it. If you're not sure, then you most likely don't need it enabled.
"

http://www.overclock.net/t/4084/spread-spectrum#post_29625
post #229 of 3800
^Oh okay.. better email those links to Gigabyte cause all their Z77 boards have it enabled, and by design you don't turn it off.
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post #230 of 3800
Quote:
Originally Posted by samwiches View Post

^Oh okay.. better email those links to Gigabyte cause all their Z77 boards have it enabled, and by design you don't turn it off.

Maybe that's why half the Gigabyte boards I've read about are giving people problems? Again, not saying they are, I've just read that they are.
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