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post #4671 of 9343
Quote:
Originally Posted by TwoCables View Post
I don't know, but it looks to me like it really is simply added or subtracted to or from the VID as I described above.



I do not know whether or produces better results than using manual. All I have noticed so far is that we prefer Offset because it allows the core voltage to dynamically adjusted based on the load instead of being at the full voltage 24/7.



Very low load and idle.

When C3 and C6 are enabled, the voltage goes as low as possible. With C3 and C6 disabled, this floor is raised a little bit.



I really don't know. All I know is that Juan Jose ("JJ" at ASUS) said that disabling the C-States can reduce HDD and SSD performance on the SATA III ports. Here are his words:

"In addition continued testing with Internal PLL Overvoltage enabled and D2 or retail parts have shown some benefits to CStates being disabled when approaching, at or exceeding a 50x multiplier. An important note to keep in mind is that disabling CStates can considerably affect HDD performance ( especially SATA6G ) Please keep this in mind when going for the highest level overclocks."

Source: http://hardforum.com/showthread.php?t=1578110
Ok.

1.) When does the CPU use its VID as Vcore? Only at stock voltage and when Vcore is set to Auto? Or does it always use VID as Vcore when set to Auto?

2.) Is the VID shown in RealTemp independent of Vdrop making it accurate as what is indicated in the BIOS?

3.) How will I know my "desired voltage" as a computation for the Offset value when VID is already known? Should I start by using Manual setting first in BIOS and determine my desired stable voltage at a certain Turbo Ratio?

4.) I was reading about the SSD/HDD throughput relation with C3/C6 states in the OP link and JJ says disabling it would be degrading to the performance of the drives but other users say otherwise. They even posted a screenshot of ATTO proving their claim. Which one of them is correct?
post #4672 of 9343
Quote:
Originally Posted by kevindd992002 View Post
Ok.

1.) When does the CPU use its VID as Vcore? Only at stock voltage and when Vcore is set to Auto? Or does it always use VID as Vcore when set to Auto?
Never, actually. It's just the VID and nothing more.


Quote:
Originally Posted by kevindd992002 View Post
2.) Is the VID shown in RealTemp independent of Vdrop making it accurate as what is indicated in the BIOS?
Some people need to put load on their CPU (like Prime95 Blend) in order to be able to see what their true VID is. I didn't have to, but some people do.

VID is not a current voltage of any kind. It's just the VID.


Quote:
Originally Posted by kevindd992002 View Post
3.) How will I know my "desired voltage" as a computation for the Offset value when VID is already known? Should I start by using Manual setting first in BIOS and determine my desired stable voltage at a certain Turbo Ratio?
You nailed it!

This is usually the best way to do it because it is the easiest way to focus on overclocking. Although, it really doesn't matter that much; some people go straight to an Offset voltage and do all their overclocking all the way to the end with an Offset. I did it the other way: I used a Manual voltage until I was done setting up my overclock. Then when I was done, I switched to an Offset voltage and that was that.

The best part is that if I want to do any more tweaking, then I can just stay with an Offset voltage the entire time I perform any new tweaks to my overclock because all of my Offset adjustments will be very tiny.


Quote:
Originally Posted by kevindd992002 View Post
4.) I was reading about the SSD/HDD throughput relation with C3/C6 states in the OP link and JJ says disabling it would be degrading to the performance of the drives but other users say otherwise. They even posted a screenshot of ATTO proving their claim. Which one of them is correct?
They are probably both correct because every system is unique.
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post #4673 of 9343
Quote:
Originally Posted by TwoCables View Post
Never, actually. It's just the VID and nothing more.



Some people need to put load on their CPU (like Prime95 Blend) in order to be able to see what their true VID is. I didn't have to, but some people do.

VID is not a current voltage of any kind. It's just the VID.



You nailed it!

This is usually the best way to do it because it is the easiest way to focus on overclocking. Although, it really doesn't matter that much; some people go straight to an Offset voltage and do all their overclocking all the way to the end with an Offset. I did it the other way: I used a Manual voltage until I was done setting up my overclock. Then when I was done, I switched to an Offset voltage and that was that.

The best part is that if I want to do any more tweaking, then I can just stay with an Offset voltage the entire time I perform any new tweaks to my overclock because all of my Offset adjustments will be very tiny.



They are probably both correct because every system is unique.
Great, I'm learning

1.) If the system never uses the VID, why is it important for the computation of the Offset voltage then? I don't get it because the value determined by Realtemp is already "less Vdrop" and the desired value (determined through BIOS) has no Vdrop subtracted yet. So when you subtract Realtemp VID from BIOS desired value will that still be accurate computation from Offset? Sorry if my question is confusing, please tell me what you don't understand

2.) What is the base Vcore used to add/subtract the Offset voltage to/from? Is this value determined automatically by the system?

3.) Are non-Sandforce-based SSDs also affected by this C3/C6 issue?
post #4674 of 9343
TWO CABLE:
No sorry man, I have the 8 gig set, that's 2x 4gig sticks.
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post #4675 of 9343
Quote:
Originally Posted by kevindd992002 View Post
Great, I'm learning

1.) If the system never uses the VID, why is it important for the computation of the Offset voltage then? I don't get it because the value determined by Realtemp is already "less Vdrop" and the desired value (determined through BIOS) has no Vdrop subtracted yet. So when you subtract Realtemp VID from BIOS desired value will that still be accurate computation from Offset? Sorry if my question is confusing, please tell me what you don't understand
I think VID stands for Voltage Identification. It's nothing more than an ID.

Also, the desired core voltage is what you see in CPU-Z under full load, not the value you would enter into the BIOS using a Manual voltage (or "fixed voltage", as some might call it).

So, it's much simpler than I have made it sound so far.


Quote:
Originally Posted by kevindd992002 View Post
2.) What is the base Vcore used to add/subtract the Offset voltage to/from? Is this value determined automatically by the system?
The VID.


Quote:
Originally Posted by kevindd992002 View Post
3.) Are non-Sandforce-based SSDs also affected by this C3/C6 issue?
I don't know. All JJ said is that it can affect hard drive performance, especially on the SATA III ports. That's all I know. I mean, I honestly don't know any more than that about it.



Quote:
Originally Posted by maxmekker View Post
TWO CABLE:
No sorry man, I have the 8 gig set, that's 2x 4gig sticks.
Oh, so it's just a 2x4GB kit. Damn.

My theory was that if you had two dual channel kits as opposed to one dual channel kit (2 sticks from one package as opposed to 4 sticks from two different packages), then that would have been the culprit.

So, it looks like the issue you're having could be way out of my league.
Edited by TwoCables - 10/26/11 at 12:26am
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post #4676 of 9343
Quote:
Originally Posted by TwoCables View Post
I think VID stands for Voltage Identification. It's nothing more than an ID.

Also, the desired core voltage is what you see in CPU-Z under full load, not the value you would enter into the BIOS using a Manual voltage (or "fixed voltage", as some might call it).

So, it's much simpler than I have made it sound so far.
Got it, now I understand. At first I thought that the desired voltage was the one stated in the BIOS.

Is Vdrop consistent for any Vcore?

What is the maximum safe temperature that I should be aware of when pushing my CPU to the limits?
post #4677 of 9343
Quote:
Originally Posted by kevindd992002 View Post
Got it, now I understand. At first I thought that the desired voltage was the one stated in the BIOS.

Is Vdrop consistent for any Vcore?
I don't know.


Quote:
Originally Posted by kevindd992002 View Post
What is the maximum safe temperature that I should be aware of when pushing my CPU to the limits?
About 98°C because that is the Thermaljunction Maximum (the "Tj. Max"). This is the temperature where the CPU would either throttle itself down or turn itself off in order to avoid damage.
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post #4678 of 9343
Quote:
Originally Posted by TwoCables View Post
I don't know.



About 98°C because that is the Thermaljunction Maximum (the "Tj. Max"). This is the temperature where the CPU would either throttle itself down or turn itself off in order to avoid damage.
Would you even personally run your system 24/7 close to that limit?
post #4679 of 9343
Quote:
Originally Posted by kevindd992002 View Post
Would you even personally run your system 24/7 close to that limit?
No, but it would be impossible. The highest temp I can achieve is in IBT, and that goes over 80°C and Prime95 goes as high as 73°C. The highest temp I can get in Crysis 1 or 2 is about 68 or 69°C if I turn the fans all the way down on my Frio. I have aftermarket fans that can go as low as 800 RPM.

So there's nothing to worry about.
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post #4680 of 9343
I won't personally pass over 85*C with mine with Prime95 (I never use IBT).

I can stress test 5.0GHz, 1.53v, and I never pass over about 81*C in Prime.

So yeah, just keep it under 85*C during Prime, and you'll be just fine. Folding on my chip (that loads at 81*C in Prime), the temperatures are about 65*C, which is MORE than safe.
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