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The i5-760 OC Club - Page 119

post #1181 of 1926
Quote:
Originally Posted by overclock king View Post
How are you guys getting a 22 multiplier? Enabling hyperboost?
didnt enable anything, I have an option to choose 22x multi
c1,cstate,speedstep are still disabled in bios
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post #1182 of 1926
Quote:
Originally Posted by Jaromir View Post
didnt enable anything, I have an option to choose 22x multi
c1,cstate,speedstep are still disabled in bios
My Asus X58 board is like that, the +1 turbo multi is just another option (22).
The EVGA just has to be a pain though. With it I have to enable speedstep and turbo, and leave C1e disabled to get 22.

Enable speedstep,turbo and C1E and I'm rocking 25 but that turns it into a dual core. Luckily SuperPi doesn't care how many cores it has.
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post #1183 of 1926
Hey Everybody,

I recently put together my first gaming rig, and I've been trying to overclock it for the past couple of days. Would you guys please take a look at my settings and let me know if there is anything egregiously wrong with what I'm doing here? My goal is a 24/7 stable 3.75-4.0 GHz machine. I would greatly appreciate any help/advice/suggestions, as this is the first overclocking I have ever done. Thank you very much in advance!

[Ai Tweaker]
Ai Overclock Tuner: Manual
OC From CPU Level Up: Auto
CPU Ratio Setting: 21
Intel(R) SpeedStep (TM) Tech: Disabled
Xtreme Phase Full Power Mode: Enabled
BCLK Frequency: 180
PCIE Frequency: 100
DRAM Frequency: DDR3-1440MHz
QPI Frequency: Auto
ASUS/3rd Party UI Priority: ASUS Utility
OC Tuner: Turbo Profile
CPU Differential Amplitude: Auto
CPU Clock Skew: Auto
CPU Voltage Mode: Offset
Offset Voltage: 0.11250
Offset Sign: +
IMC Voltage: 1.18750
DRAM Voltage: Auto
CPU PLL Voltage: 1.8875
PCH Voltage: Auto
DRAM DATA REF Voltage on CHA: Auto
DRAM DATA REF Voltage on CHB: Auto
Load-Line Calibration: Disabled
CPU Spread Spectrum: Disabled
PCIE Spread Spectrum: Auto

[CPU Configuration]
CPU Ratio Setting: Auto
C1E Support: Disabled
Hardware Prefetcher: Enabled
Adjacent Cache Line Prefetch: Enabled
Max CPUID Value Limit: Disabled
Intel (R) Virtualization Tech: Enabled
Intel (R) C-State Tech: Disabled

With these settings, the computer passes IBT (high, 10 runs), and Prime95 for 20 minutes. Before I do any serious stress-testing, I want to set the correct RAM timings and frequency in the BIOS, but I am hesitant to use eXtreme Memory Profile to do this, due to the fact that it will automatically change the multiplier and BCLK frequency. Would you guys recommend using XMP to activate the proper settings for the RAM, or would you recommend manually entering the proper frequency and timing values elsewhere in the BIOS? Due to the dependence of the RAM frequency on the BCLK, is there any way to achieve the CPU speed I want, while also achieving the proper RAM frequency? It seems like in order to get the proper RAM frequency, I would have to lower the BCLK, thereby lowering my overall CPU speed. What am I missing here?

Thank you for your help!
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post #1184 of 1926
Quote:
Originally Posted by ballalint View Post
Hey Everybody,

I recently put together my first gaming rig, and I've been trying to overclock it for the past couple of days. Would you guys please take a look at my settings and let me know if there is anything egregiously wrong with what I'm doing here? My goal is a 24/7 stable 3.75-4.0 GHz machine. I would greatly appreciate any help/advice/suggestions, as this is the first overclocking I have ever done. Thank you very much in advance!

[Ai Tweaker]
Ai Overclock Tuner: Manual
OC From CPU Level Up: Auto
CPU Ratio Setting: 21
Intel(R) SpeedStep (TM) Tech: Disabled
Xtreme Phase Full Power Mode: Enabled
BCLK Frequency: 180
PCIE Frequency: 100
DRAM Frequency: DDR3-1440MHz
QPI Frequency: Auto
ASUS/3rd Party UI Priority: ASUS Utility
OC Tuner: Turbo Profile
CPU Differential Amplitude: Auto
CPU Clock Skew: Auto
CPU Voltage Mode: Offset
Offset Voltage: 0.11250
Offset Sign: +
IMC Voltage: 1.18750
DRAM Voltage: Auto
CPU PLL Voltage: 1.8875
PCH Voltage: Auto
DRAM DATA REF Voltage on CHA: Auto
DRAM DATA REF Voltage on CHB: Auto
Load-Line Calibration: Disabled
CPU Spread Spectrum: Disabled
PCIE Spread Spectrum: Auto

[CPU Configuration]
CPU Ratio Setting: Auto
C1E Support: Disabled
Hardware Prefetcher: Enabled
Adjacent Cache Line Prefetch: Enabled
Max CPUID Value Limit: Disabled
Intel (R) Virtualization Tech: Enabled
Intel (R) C-State Tech: Disabled

With these settings, the computer passes IBT (high, 10 runs), and Prime95 for 20 minutes. Before I do any serious stress-testing, I want to set the correct RAM timings and frequency in the BIOS, but I am hesitant to use eXtreme Memory Profile to do this, due to the fact that it will automatically change the multiplier and BCLK frequency. Would you guys recommend using XMP to activate the proper settings for the RAM, or would you recommend manually entering the proper frequency and timing values elsewhere in the BIOS? Due to the dependence of the RAM frequency on the BCLK, is there any way to achieve the CPU speed I want, while also achieving the proper RAM frequency? It seems like in order to get the proper RAM frequency, I would have to lower the BCLK, thereby lowering my overall CPU speed. What am I missing here?

Thank you for your help!
First off, Welcome to OCN !!

Sorry for the slow reply. Saw you post this last night but was too tired to take a good look at it.

No need to use XMP. Just set the memory frequency and timings yourself. Not very hard especially if you are already overclocking the CPU.

Just going down your settings here and making a couple comments.

OC From CPU Level Up: Auto
Not all that familiar with Asus P55 bios but that looks like some sort of dummy overclock settting to me. Turn it off.

BCLK Frequency: 180
I like odd numbers, I'd go 181. ; P

CPU Differential Amplitude: Auto
800mV

CPU Voltage Mode: Offset
Offset Voltage: 0.11250

I use offset mode plenty but usually only when I have to in order to enable other options. First overclock go with manual here. It is just simpler. And I don't know what your stock voltage is but a offset of .1125v over stock for 3.8 could be a bit high.

IMC Voltage: 1.18750
DRAM Voltage: Auto

Get that DRAM voltage out of auto. Just set it to stock for your RAM for starters. IMC looks fine but keep in mind that it is one of the more important voltages for dialing in your overclock. Also always keep those two within .5v of each other.

CPU PLL Voltage: 1.8875
Too high. 1.8v should be plenty. Only raise it if you are getting lots of fluctuation on the core speed. By this I mean with 181 X 21 it would be normal to see the core speed to fluctuate between say 3799.5 MHz and 3802.5MHz depending on load But if you start seeing larger fluctuations raising the PLL will help stabilize it. But raising it without reason is just as likely to cause stability problems as it is to help.

PCH Voltage: Auto
Auto will work but I'd go ahead and lock it at 1.05v which is stock.

CPU Spread Spectrum: Disabled
PCIE Spread Spectrum: Auto

I always disable both.

CPU Ratio Setting: Auto
Why is it showing auto here but 21 above. Don't leave it in auto.

Proper RAM frequency. LOLz.
DRAM Frequency: DDR3-1440MHz
That is your RAM frequency. It is a obtained by your baseclock multiplied by memory multiplier which in this case is set to 2:8 or more easily thought of as X8. You will see NO differnce in performance between 1448MHz and 1600MHz except when running 2d benchmarks like SuperPi.

Of course if you absolutely must get your moneys worth out of your RAM you can do that. 160 X ?? (whatever CPU ratio) and a 2:10 memory multi or 200 X ?? with a 2:8 multi.

I think what you are missing here is that for most average uses CPU fequency and memory stablility are much more important than "proper RAM frequency". Get the overclock you want or I should probably say find the ovrclock that works best for your system or your chips sweetspot and then set the highest memory multi you can without going over 1600MHz which most often with 1600MHz is the 2:8 multi. This is where getting your money's worth is at; as with 1333MHz RAM you would most often be stuck with 2:6 as your only option.

Now I apologize as I know you made no mention of "getting your money's worth out of your RAM". I've just heard or read those words too many times not to get that jest when reading the last part of your post about Proper RAM Frequency.
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post #1185 of 1926
Thanks so much for taking a look at my settings, ~sizzle~! After reading over your advice, I have a much better idea of the overclocking approach I want to take. I actually don't have too much time over the next few days to experiment with raising the BCLK and voltages, so until then I'm going to drop the BCLK down to 160, raise the multiplier to 22 and change the memory timings and multiplier to more appropriate values. I will also make the changes you suggested above. After reading what you said about the memory, it makes sense to me to find the best speed for the CPU and then adjust the memory clock accordingly. I will test my current 3.5GHz overclock with your suggested settings and report back. Thanks again for your help!
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post #1186 of 1926
Quote:
Originally Posted by ballalint View Post
Thanks so much for taking a look at my settings, ~sizzle~! After reading over your advice, I have a much better idea of the overclocking approach I want to take. I actually don't have too much time over the next few days to experiment with raising the BCLK and voltages, so until then I'm going to drop the BCLK down to 160, raise the multiplier to 22 and change the memory timings and multiplier to more appropriate values. I will also make the changes you suggested above. After reading what you said about the memory, it makes sense to me to find the best speed for the CPU and then adjust the memory clock accordingly. I will test my current 3.5GHz overclock with your suggested settings and report back. Thanks again for your help!
No problem, glad to help out when I can.

I should have mentioned Asus likes to hide the memory multiplier in BIOS. They usually just give you the memory frequencies available that are representative of the memory multipliers.

Also when dialing in a new overclock it is a good idea to cut the memory down to the lowest multi to start with. Get the CPU at least somewhat stable (20 passes of Intel Burn Test) first before raising the memory frequency. Simplifies the overclock by taking the uncore side of things out of the equation. By seperating the core and memory overclocks any instability that might pop up is a little easier to pinpoint where it is coming from and what to do about it.

A 160 X 22 overclock should go pretty smooth. You should note that in general 21 (or sometimes 20) is usually going to be your most stable CPU Ratio. 22 usually isn't the best ratio to use. It just takes more voltage to get stable compared to the same core speed with a 21 ratio. Though with a lowish 160 baseclock I don't forsee you having any trouble with it.

You might want to take a look back to page 2 of this club for some of my other ramblings on overclocking these 760's ( http://www.overclock.net/intel-cpus/...l#post11209942 )

Good Luck, be patient and have fun.
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post #1187 of 1926
Hey all!

It's been a few months since last I was here. I had to drop all my OC settings and go stock until I was able to stabilize my rig (long story). Anywho, I just got back to OCing and I've been able to run my base clock at a stable 200mhz at 1.25 Vtt with Prime 95 blend tests and my multi at 20 at 1.3 VCore (using Prime95 as well). Strangely though, when I put em together I immediately blue screen when I start Prime95. Even stranger, I tried playing Crysis with the setup and ran it perfectly. It only seems unstable when I run the stress test. RAM is running 1600 at 1.65 volts and passed memtest+ and all powersaving features (C!, Speedstep, etc) are disabled. Any ideas on why the combo fails where the two separate settings succeed? Sorry for the lack of info, I'm at work and I can't remember everything off the top of my head. Thanks!

PS. Heat isn't an issue as it hits 67C at load.
    
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post #1188 of 1926
Have you tried bumping vcore a little further?
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post #1189 of 1926
Hey, sorry I haven't checked back in a bit, and thanks for the response. I have fiddled with the VCore and brought it up to 1.313. Any more than that and I get nervous about heat. No changes. I'm stable at 3.9Ghz so I think I'll just sit there.
    
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post #1190 of 1926
Thought it's about time I posted in this topic. I got my 760 up to 4Ghz at 191x21 with 1.37 VCore and 1.3 IMC. The summer heat is starting to come in now though, so temperatures are a little higher than I'd like. I was able to get it almost stable with lower voltages, passing IBT and Prime95 small ffts. But it would fail at blend test in under a hour. With those voltages I was able to survive blend testing for over 5 hours until one core failed. Highest temp during all testing was 85C with average on load around 78C.

I decided to keep it that way since I'm getting no errors in games etc. I left FFXIV running over night, which wrecked my previous unstable overclocks and everything was alright. Thinking of getting better cooling now though.

Will my chip be ok with those voltages? Its under the intel ratings so I figured it should be fine as long as I watch the temperatures. Just a little paranoid about degrading my chip.
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