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post #3691 of 9373
Quote:
Originally Posted by paradoxum View Post
"first threads" = ??

anyway, i've been playing around and seem to be desktop stable at 5ghz @ 1.33vcore. how's that?
Looks like you have pretty low voltage. NICE but how stable it is?
Make a CPU-z validation for 4GHz Club
Here's the template.

Quote:
TwoCables template for his stable Core i5 2500K@4.8GHz overclock

Originally Posted by TwoCables

Ai Tweaker
Ai Overclock Tuner: Manual
BLCK/PCIE Frequency: 100.0
Turbo Ratio: By All Cores
By All Cores: 48
Internal PLL Voltage: Disabled
Memory Frequency: use the rated speed for your memory
DRAM Timing Control: use the rated timings for your memory
EPU Power Saving MODE: Disabled


Ai Tweaker\\ CPU Power Management >
CPU Ratio: Auto
Enhanced Intel SpeedStep Technology: Enabled
Turbo Mode: Enabled
Long Duration Power Limit: Auto
Long Duration Maintained: Auto
Short Duration Power Limit: Auto
Additional Turbo Voltage: Auto
Primary Plane Current Limit: Auto


Ai Tweaker (in the DIGI+ VRM section)
Load-Line Calibration: Ultra High
VRM Frequency: Manual
VRM Fixed Frequency Mode: 350
Phase Control: Extreme
Duty Control: Extreme
CPU Current Capability: 140%
CPU Voltage: Offset Mode
Offset Mode Sign: +
CPU Offset Voltage: 0.040V
DRAM Voltage: use the rated voltage for your memory
VCCSA Voltage: Auto
VCCIO Voltage: Auto
CPU PLL Voltage: Auto
PCH Voltage: Auto
CPU Spread Spectrum: Enabled


Advanced\\ CPU Configuration >
CPU Ratio: Auto
Intel Adaptive Thermal Monitor: Enabled
Active Processor Cores: All
Limit CPUID Maximum: Disabled
Execute Disable Bit: Enabled
Intel Virtualization Technology: Disabled
Enhanced Intel SpeedStep Technology: Enabled
Turbo Mode: Enabled
CPU C1E: Enabled
CPU C3 Report: Auto
CPU C6 Report: Auto



Note: that Offset Voltage gets me a Core Voltage in CPU-Z of about 1.384V - 1.392V while under full load in Prime95's Blend. So be cautious and adjust accordingly.
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post #3692 of 9373
should I use voltage offset instead of specifying the voltage? what's the difference?
post #3693 of 9373
Quote:
Originally Posted by paradoxum View Post
should I use voltage offset instead of specifying the voltage? what's the difference?
Offset voltage...that along with c1e support and intel speedstep allow for your cpu to down clock and use less voltage at idle. If it is manual then it won't use less voltage and it is just making heat for nothing.
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post #3694 of 9373
Quote:
Originally Posted by SeanWebster View Post
Offset voltage...that along with c1e support and intel speedstep allow for your cpu to down clock and use less voltage at idle. If it is manual then it won't use less voltage and it is just making heat for nothing.
I see, thanks. however if I use offset voltage and enable C1E then windows freezes upon loading the login screen, doesn't restart or anything just freezes. anything I can do? because i'd really prefer to use the down clock thing so it's not running at 5ghz all the time
post #3695 of 9373
Quote:
Originally Posted by TooManyToys NotEnoughTime View Post
Quote:
Originally Posted by TooManyToys NotEnoughTime View Post
I've got a real solid x46 OC using TwoCables' original template (from the second post on this thread) and my p8z68v pro board and 2600k. The settings I've changed are:

By All Cores: 46 (versus 48)
DRAM timing: (2x 4GB corsair vengence @ 1600 9-9-9-24-2T)
Secondary Plane Current Limit: Auto (not listed in template)
CPU Offset Voltage: +0.010 (versus 0.040)
DRAM Voltage: 1.50
VCCSA Voltage: N/A (not list in my bios)

This has held up to 20 iterations of IBT @ very high stress level (4096MB) with Xtreme enabled as well as a 12 hour blend.

I'd like to try pushing this a little higher but I got repeated BSOD or Windows would fail to boot using the original template (x47 and x48, offset +0.040).

So what should I try next? Manually setting VCCIO? Pushing the offset higher?
Bumping this since I didn't see any responses. The system mentioned above (not sig rig) freezes while booting windows (the four color windows thingy stops animating) at x47 but is happy as can be at x46. I've tried pushing the offset to +0.080 but no luck. So do I have a CPU that can't make it past x46? How far can I push the offset?
It depends on what core voltage the offset is giving you during full load (the voltage displayed by CPU-Z).

What voltage have you seen so far in CPU-Z while running something like Prime95? What was the Offset you were using at that time?


Quote:
Originally Posted by merwan View Post
ok on my box says asus p8p67 pro (rev. 3.0) and on asus website the 3.1

is it still ok to download drivers from the 3.1 rev? even bios?
I would have to say no because even though all they supposedly changed is the USB 3.0 controller, there's no real way to know if they changed anything else. Plus, the BIOS for 3.1 will be expecting the different USB 3.0 controller.

Here's their page for Rev. 3.0:

http://www.asus.com/Motherboards/Int...155/P8P67_PRO/


Quote:
Originally Posted by stariz View Post
Yes, this gets rid of the sound. The whining sound is completely gone with these speed stepping features off in any situation. What's strange though is any video on my screen causes the scratchy sound to happen - even the flash add on the main page of overclock.net causes the scratchy sound. I played a youtube vid on mute and I can hear it (the whining sound never happens though); just sitting on desktop or anywhere without video, there is no sound what so ever. Sound like video card problems? Although I was getting the sound with my card disconnected before running onboard graphics :S

It's very pleasant but I don't know how functional this fix is. I heard overclocks aren't very stable with these features disabled right? It was my intention to start overclocking once I had this issue resolved.
If you're not using onboard video, then I'd like to try and disable it or bypass it or something. I don't know what I'm doing, however this is what I would do first:
  1. In the UEFI, navigate to Advanced > System Agent Configuration
  2. Set "Initiate Graphic Adapter" to "PCIE/PCI"
  3. Render Standy: I don't know what this is, but try "Disabled"

This may allow you to re-enable Enhanced Intel Speedstep and CPU C1E. C3 and C6 are not necessary, so they can be left disabled.


Quote:
Originally Posted by chillidog View Post
i have changed the settings you recommend and i have tried to input voltages from 1.27 up to 1.37 but i get bsod upon restarting . so i had revert back to my old settings.not sure what's wrong here.
but on my old settings everything seem to run ok.apart from the core voltage in cpu-z showing @max 1.38-1.40?
So this was with every single change, including setting Load-Line Calibration to Ultra High?


Quote:
Originally Posted by Seabass74 View Post
I have a couple Questions. (Supernoob to Overclocking)

1) Should I update the BIOS even though my Rig is running smoothly?
Nah. At least, I wouldn't.


Quote:
Originally Posted by Seabass74 View Post
2) Does the AI Suite II Auto overclock feature work well? I'm not trying to push my chip too far. 4.0-4.3 would be cool with me.
I recommend just doing this directly in the UEFI because this Ai Suite II is kind of junk software in my opinion.

All you'd really need to do for this overclock is this:
  1. Set Ai Overclock Tuner to Manual
  2. Set Turbo Ratio to "By All Cores"
  3. Set "By All Cores" to "43" (this will result in 4.3 GHz)
  4. Set Internal PLL Overvoltage to "Disabled"
  5. Choose your memory frequency from the Memory Frequency menu
  6. Leave everything else the way it is for now and let's see what happens!


Quote:
Originally Posted by paradoxum View Post
should I use voltage offset instead of specifying the voltage? what's the difference?
To get started, you can use the Manual voltage instead of Offset. This will actually be helpful in figuring out what voltage you will ultimately need to get from an Offset for stability.

So let's say that you overclock and that you discover that you get the most stability with 1.392V under full load as displayed by CPU-Z. So then what you'd do after determining stability is you'd switch over to an Offset that results in 1.384V under full load.

It's easier than it sounds.
Edited by TwoCables - 9/23/11 at 2:13pm
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post #3696 of 9373
Quote:
Originally Posted by TwoCables View Post
So let's say that you overclock and that you discover that you get the most stability with 1.392V under full load as displayed by CPU-Z. So then what you'd do after determining stability is you'd switch over to an Offset that results in 1.384V under full load.

It's easier than it sounds.
ok, so with prime95 running and stable (so far, anyway, haven't run it for long) I get a voltage of 1.344 in cpu-z. what do I need to put as the offset voltage to get that under load?
post #3697 of 9373
Quote:
Originally Posted by paradoxum View Post
ok, so with prime95 running and stable (so far, anyway, haven't run it for long) I get a voltage of 1.344 in cpu-z. what do I need to put as the offset voltage to get that under load?
To find out, click this button in Real Temp until you see it display your VID:




(this is Real Temp 3.67, which I highly recommend for all Sandy Bridge overclockers)

You may need to have your CPU under full load in order for it to display your actual VID. Also, it will fluctuate a little bit. Mine fluctuates between 1.3511V and 1.3561V.

Once you discover what your VID is (which changes depending on which multiplier you are using), the Offset voltage to use is the difference between the VID and your target core voltage, which is 1.344V right now.

So if your VID is the same as mine at 1.3561V, then the difference between 1.3561 and 1.344 is 0.0121. The UEFI uses increments of 0.005V, so you'd use an Offset of either -0.010V to -0.015 (using the minus Offset sign instead of Plus).


Note: you may need to keep Load-Line Calibration at Ultra High for this to work as I described. Using lower LLC levels like Medium or High will require "larger" Offset values to make up for the vDroop.
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post #3698 of 9373
I played around but 90% of the time it freezes on windows logo, even if I upped it to ultra high or increased the offset past what I calculated. i've got it set to 1.350v manual right now and it runs at 1500mhz when not under load, but the voltage stays at 1.350, is that okay?
post #3699 of 9373
Quote:
Originally Posted by paradoxum View Post
I played around but 90% of the time it freezes on windows logo, even if I upped it to ultra high or increased the offset past what I calculated. i've got it set to 1.350v manual right now and it runs at 1500mhz when not under load, but the voltage stays at 1.350, is that okay?
Can you boot with this voltage? If so, then yes.

Therefore, if you can boot with this voltage, we need to use an Offset that will result in this voltage.

However, both C3 and C6 need to be either Auto or Disabled.
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Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO 
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Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round 
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post #3700 of 9373
Quote:
Originally Posted by TwoCables View Post
Can you boot with this voltage? If so, then yes.

Therefore, if you can boot with this voltage, we need to use an Offset that will result in this voltage.

However, both C3 and C6 need to be either Auto or Disabled.
it's like I said though, I did use an offset that should have resulted in that voltage, it just kept freezing on windows logo. c3 and c6 are default still, which is auto.
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