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Originally Posted by Mattb2e View Post
If I remember correctly the non extreme i7's are limited by there wattage?
There should be an option to turn this OFF on the P6T deluxe. Have you tried to find that setting. The OC on the 920 are restricted until you unlock it. BTW 3.5ghz, not bad for first try on a whole new system.
 

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Originally Posted by Extreme Newbie View Post
The BIOS is always the best way to overclock. To get to 3.4 try a CPU ratio of 20 with a BLCK of 170. CPU voltage should be at stock for 3.4GHz unless you have a real bad chip.
Monitor temps with RealTemp while you run Prime95.

Good luck
I normally dont mess around with these programs BUT I was very surprised to find that it is actually a great program. I went from 2.66ghz to 3.8ghz (Turbo Off) completely stable in prime 95 for an hour and a half. Granted its not a 6 hour run but the chip started to hit 80c so I figured it was good enough. For the first time ever I may actually use a software overclock tool to give that extra umph. Ill probably keep a 24/7 BIOS OC of 3.4-3.5 to keep the voltages low and use TurboV to bump it up only when I need it. Its actaully good. I know, I can't believe it but it works. Only problem is that you can only change CPU clock, CPU and RAM Voltages and QPI voltage.
 

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Originally Posted by NCspecV81
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use setfsb to adjust bclk and turbov for everything else.

I havnt tried a Bclk over 200 so I wouldnt know. I wonder, is it safe to drop the multi to 19 to up the RAM a bit more? Does anyone run with a 19 multi? Im not sure what the long effects of running a really high base clock is yet 24/7.
 

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Originally Posted by Traken03 View Post
Thanx Yomny, i should be getin my motherboard in the mail in the next couple of days. Had to order it online because all the ASUS P6T Deluxe boards are sold out everywere around here. I'll keep u updated when i get it and start my build and even take a couple pics and share em. If i need more help ill holla at u, thanx again.


Oh! i have one more question, do u think that the Memory that i have is good enough? I got the 1333 ddr3 because ive heard that people geting the higher stuff were underclocking it anyways.
You may have to manually set your memory speeds and timings.
 

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Originally Posted by speedy2721 View Post
Is there anyway to read the qpi voltage? On my MSI X58 Platinum Sli you can only increase it by .01 volts but it never gives you the real value so I can't tell how much I need to raise it.

I also need help getting over 3.6GHz stable.
My settings are:
Base Clock-180
Multi-20
DRAM speed- 1080mhz
CPU V- +0.09
Cpu PLL V- Auto
Qpi V- Auto
DRAM V- 1.5
NB V- Auto
ICH V- Auto
Whats stopping you? Temps or stability? I can get up to 4.3ghz without changing anything but the CPU voltage. I wouldnt run my CPU like that all the time AND I would not recommend it but its stable. I noticed there is a hole in my board from 193-200 Base Clock. I can stay at 192 or go up to 201 and its completely stable but I cannot even get it to boot in between that. Strange.
 

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Originally Posted by speedy2721
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It wont boot up if I higher the base clock, but I am only using 1.192V in windows(1.168 load) and it is linx stable at 3.6GHz. I also changed my CPU PLL to 1.88(default 1.8) and I put QPI to +0.2V since I read the the default is around 1.1 for the I7 920 on this board.

Also my core temps are 50C-56C so temps aren't a problem.

You will need more voltage on the CPU.
 

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Originally Posted by speedy2721
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My RAM is rated for 1333 but I put it at 1088 just to make sure that the RAM is not the problem. I have all the timings on Auto so maybe I will try putting them in manually. Right now I have QPI/VTT at +0.02 and Voltage at +0.03 and it is stable at 3.6. I will probably raise the QPI a little more and mess with the RAM timings. Thanks to everyone that is helping, rep +.

Believe it or not my 1600mhz RAM is not stable at 1066
With it not being set to its default speed I think my board messes up the timings.
 

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Originally Posted by speedy2721 View Post
I finally got 4Ghz linx stable! All I had to do is flip these three switches on my board to make it change the base clock to 200, then I went into the bios and made the multi 19 and the base clock 211.My voltage in windows is 1.352 idle; Is that safe to use 24/7 for a few years? Also my QPI is +0.21.

Here is the validation link: http://valid.canardpc.com/show_oc.php?id=513494
Its within intel's spec but just barely. One notch over actually but not much. You have to ask yourself, do you need it at that speed right now? I personally leave mine at 3.6ghz for 24/7 becaue it only requires 1.21 Volts. Going to 3.8 and beyond requires at least 1.3V so thats a big jump for 200mhz. Thats just my opinion though.
 

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Originally Posted by speedy2721 View Post
I read that it is supposed to be almost as good as a TRUE, but I am not 100% sure if that is true or not. What do you use to test for stability?
haha you a mugen 2? that thing just looks like a monster. Is it as big as it looks? Nice cooler man.
 

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Originally Posted by speedy2721
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Yeah that thing is huge,i and it weighs almost 1kg with the fan on it. Is it right that I am still getting up to 80C with that cooler or the I7's just run that hot?

What speed? 4ghz? i7's do just run that hot. Its the hyperthreading and integrated memory controller that make it run so hot.
 

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Originally Posted by MrMason
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Is anyone able to get past around a 222 base clock? I can't seem to get much past this.

I think the record right now is 233 base clock. I dont remember what motherboard it was but that was the highest so far I BELIEVE. I havnt really tried to go over 215.
 

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Originally Posted by Lyshk0
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Got 3.6 stable last night, finished stressing just a few minutes ago. I know 3.6 is no miracle, but i had it at 4, and didnt like the operating temps i was seeing (i was right under 1.350v aswell) so i decided to go this way with it...





Is there a reason why your only running 4 threads in prime 95? You should run all 8 to get your true temperatures. BTW, you should be able to get lower on the voltage to help temps. I have seen as low as 1.2V for 3.6ghz. I am stable at 1.215V
 

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Originally Posted by eflyguy
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Seeing another P6T here, want to bring this "issue" up again:

Anyone else running all 6 slots full on their P6T board without issue?

This is supposed to reduce memory bandwidth but is not for me. Just curious to see what others have found..
..a

why would it reduce bandwidth? I havnt heard of this.
 

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Originally Posted by ricsim78 View Post
That being said, I like to run and keep my Core i7 920 at 3.8 Ghz for everyday, 24/7 use (though I can go higher if I want). I am currently cooling the CPU with my Thermalright Ultra 120 Extreme 1366, using the stock fan with an additional fan bracket and an Ultra ball bearing fan (silent and cools well) in a push/pull setup. DO NOT attempt these settings without proper cooling, so if you are using the stock cooler and/or have a cramped case this is not recommended at all!

Temps are fairly close to stock at idle (1-3 degrees more sometimes) and under load are only 5-10 degrees difference (In Celsius). It can pass all stress tests and never gets above 70 degrees even at full load. Here are the settings for the Core i7 920 @ 3.8 Ghz. My components are listed below.

Asus P6T Deluxe BIOS Settings for 3.8 Ghz overclock:

A.I. Overclock Tuner: Manual
CPU Ratio: 19.0
BCLK Frequency: 200
PCI-Express Frequency: 100
DRAM Frequency: DDR3-1603
UCLK: 3208 MHz
QPI Data Link: 7218MT/s

CPU Voltage: 1.30000
CPU PLL: 1.92
QPI/DRAM Voltage: 1.30000
DRAM Bus Voltage: 1.66

For CPU options, I turn off everything not needed including power saving, virtualization, and speedstep. You can attempt Turbo but I keep it off.

CPU Ratio: 19
C1E Support: Disabled
Hardware Prefetch: Enabled (Keep on for more performance)
Adjacent Hardware Prefetch: Enabled (Keep this on, too)
Intel Virtualization: Disabled
CPU TM Function: Enabled (VERY Important to leave on for protection)
Execute Disable Bit: Enabled
Intel HT: Enabled (Keep on for more performance, Disabled will run cooler)
Active Processors: All (If you have it, use it!)
A20M: Disabled
Intel C-State: Enabled (helps your CPU run a bit cooler)
C-State Set Limit: Auto

Every other voltage setting is on Auto mode and I did not need to change anything else, including Memory timings. System runs like a top, runs slightly warmer than stock but fairly warm in intensive applications or stress testing. Passes Intel Burn test and Prime stable though.

If you have decent 1600 RAM and want to try settings out, let me know if they work for you but just remember these chips run HOT.

I can also run 4.0 Ghz but the temperature difference goes up enough to actually hurt performance slightly and not worth it for added stress on the CPU.

I am going to lap the heatsink and use a small amount of MX-2 instead of the stock Thermalright TIM and hoping to see my CPU temps go down even more but they are beyond acceptable even now. I do have a very well ventilated case which helps as well.
At what point did you have to up the CPU PLL voltage? I was able to get 3.8ghz Prime stable with only changing the CPU voltage to 1.31V. CPU PLL is set to 1.8V or default. Were you unstable with it lower?
 

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Originally Posted by dejanh View Post
Anyone here experiencing cold boot problems with Rampage II Extreme? If yes, which PSU are you using and which DRAM?
I am with asus P6T. I am in the process of RMAing right now. Hopefully it will fix the problem. If I leave the computer off more than 24 hours it wont boot unless I reset the CMOS. It doesnt matter whether its overclocked or stock.
 

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Originally Posted by speedy2721 View Post
Ok thanks. This taught me to not trust the auto settings in the bios.
All I heard was how asus perfected the voltage needs of these chips and no manual adjustment was needed. That is far from the truth. At 3.8 ghz my board defaults 1.41V but it is perfectly stable at 1.31V and maybe even lower.
 
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