4.8Ghz at 1.4v what settings?

[0dervish0]

Hello

I was just wondering if I could get some advice on improvements to my overclock settings. I was running stable at 4.5Ghz and yesterday increased the multiplier to 48 and have incrementally been increasing the vcore and running prime95 while monitoring the temps. My most recent vcore was 1.390v at a max temp of 76 degrees and I left that for 2 hours and 40 minutes with prime and it was fine and then I went to bed but once I woke up I had a bsod. So now I have it at 1.400v and will test it tonight but I was just wondering if my other settings such as PLL could be adjusted to make the overclock more stable. I have included some images of my settings and would really appreciate your advice on what to change. Also is 4.8Ghz at 1.4v with 76 max temps all right?

My system setup is below and I am running Windows 7 Ultimate 64bit.

Thanks

Chris

 

[Idontcare]

For SB, 1.4V for 4.8GHz is in the right neighborhood, so are your temps.

Did you get your BSOD when your rig was idling or when it was fully loaded with prime/linx?

Have you played around much with the LLC settings? If you are looking for stability with the lowest Vcc then you have to focus on lowering temperatures and optimizing the LLC settings.

No idea if it makes any difference on CPU stability, but FWIW your CPU PLL Voltage is a tad lower than mine (I run 1.793V) and your VCCSA is a tad lower than mine (I run 1.058V). Now that is with a 2600k on a MIVE-Z, and those values are the default values set by the BIOS.

So you might try tweaking those to see if they make any bit of difference (I doubt they will, VCCSA is more for getting dram stable than for cpu core stability). But I require 1.4V at 4.8GHz and my temps hit right around 80C under linx.

 

[0dervish0]

For SB, 1.4V for 4.8GHz is in the right neighborhood, so are your temps.

Did you get your BSOD when your rig was idling or when it was fully loaded with prime/linx?

Have you played around much with the LLC settings? If you are looking for stability with the lowest Vcc then you have to focus on lowering temperatures and optimizing the LLC settings.

No idea if it makes any difference on CPU stability, but FWIW your CPU PLL Voltage is a tad lower than mine (I run 1.793V) and your VCCSA is a tad lower than mine (I run 1.058V). Now that is with a 2600k on a MIVE-Z, and those values are the default values set by the BIOS.

So you might try tweaking those to see if they make any bit of difference (I doubt they will, VCCSA is more for getting dram stable than for cpu core stability). But I require 1.4V at 4.8GHz and my temps hit right around 80C under linx.

Thanks for the advice. The BSOD was when the cpu was under full load with Prime95. I left it overnight running Small fft test and it would have been over 4 hours + before it got a BSOD. Right now I'm running at 4.8Ghz (not loaded) and I have no problems. So should I try and first figure out my lowest vcore and then adjust the LLC? So do I just lower the CPU Load-Line Calibration to level 3 and see if it runs stable?

Thanks

 

[borisvodofsky]

Yikes..

Ok, you need around 1.35-1.37 volts to do 4.8ghz.

Enable everything that is suppose to "clean up" the voltage, like extreme phase mode,

Disable everything on Intel's side, like C1E, C3, C6, Virtualization,

Leave speedstep and turbo on, obviously

If you are using 4 dimm ram, up the vccio a bit.

Turn off all spread spectrum

As far as temps go, I hit 85C on IBT, and it ran fine. Prime goes as high as 70 tops. So it's not nearly as stressful.

Is that all of your settings? my asus has a bunch more, that I don't see in your menu. scroll down.

 

[Kenmitch]

Try prime with these settings to find voltages . Worked for me at least. Marginal voltages will bsod quickly.

0x124 bsod up pll most of time. It will have a sweet spot you just gotta.find it. If upping doest help try vcore.
0x101 bsod up the vcore.

20-30 minutes is good. Test overnight prime afterwards.

Mine in sig likes 1.792v pll 1.077v vtt vcore 1.368v but I use offset voltage. I disabled c3 and c6 only as it let's me run lower vcore.

 

[0dervish0]

Sorry forgot about the advanced tab:

I'm using 4x DDR3-1600Mhz PC3-12800 4096MB CL9-9-9-24 1.5V RAM.

Thanks

 

[BD231]

4.8ghz was a little funky for me under 1.4v, worked half way decently but would fail Intel Burn Test. 4.7 was no problem @ 1.35v though so I'd say search for your sweet spot instead of giving it more voltage. Also, make sure your c-states are on, otherwise you're just going to pump more voltage into your chip even at idle which is not good if you're pushing 1.4v.

 

[borisvodofsky]

4.8ghz was a little funky for me under 1.4v, worked half way decently but would fail Intel Burn Test. 4.7 was no problem @ 1.35v though so I'd say search for your sweet spot instead of giving it more voltage. Also, make sure your c-states are on, otherwise you're just going to pump more voltage into your chip even at idle which is not good if you're pushing 1.4v.

Dude, you're doing it wrong, and you have the Asus Supa Board. I'm using the z68 pro

LOL

Turn all your C states OFF.
Internal PLL overvoltage , DISABLE
LLC, HIGH
PHASE Spread spectrum, ENABLE
PHASE frequency 350
PHASE Mode, ASUS optimized
PHASE DUTY, Extreme

Set to voltage offset mode, - 0.030

And since you're using a High memory clock, increase the VCCIO

 

[borisvodofsky]

Sorry forgot about the advanced tab:

I'm using 4x DDR3-1600Mhz PC3-12800 4096MB CL9-9-9-24 1.5V RAM.

Thanks

OK disable C1E, it's useless. You don't need to be saving any power, because this thing uses next to no power at idle anyways.

Turn of virtualization unless you actually run virtual machines.

Disable Thermal throttling. :thumbsup:


Also, since you're using 4gb of the same dimm, I'm assuming they have XMP, turn that on, because they're optimized by the manufacturer, for good stability.

Since you're using 16gb, I wouldn't overclock the memory, because it would honestly only hamper your CPU overclockability which is more important, because it has been proven that Memory overclocks provide Very little tangible benefit on the current generation platforms.

 

[Don Karnage]

With my 2500K i needed 1.38v for a stable 4.8Ghz and 1.416 for 6Ghz. God i miss that chip

 

[Idontcare]

Dude, you're doing it wrong, and you have the Asus Supa Board. I'm using the z68 pro

LOL

Turn all your C states OFF.
Internal PLL overvoltage , DISABLE
LLC, HIGH
PHASE Spread spectrum, ENABLE
PHASE frequency 350
PHASE Mode, ASUS optimized
PHASE DUTY, Extreme

Set to voltage offset mode, - 0.030

And since you're using a High memory clock, increase the VCCIO

What's with the attitude?

OC'ing is a YMMV situation to begin with, its not like you have the market cornered for THE golden settings that are going to make everyone's mobo and CPU overclock exactly like your own.

I trust BD231 knows his own mobo and cpu overclocking potential more than you do, given that you've never laid your hands on either component in his rig and he has.

 

[borisvodofsky]

What's with the attitude?

OC'ing is a YMMV situation to begin with, its not like you have the market cornered for THE golden settings that are going to make everyone's mobo and CPU overclock exactly like your own.

I trust BD231 knows his own mobo and cpu overclocking potential more than you do, given that you've never laid your hands on either component in his rig and he has.

Yea? Not to brag, but I'm the Pope of Computers, My mere thought about your computer settings can boost your performance.

I only say that cuz i literally think C1E has to be disabled.

And no, I don't think he knows his computer better than I do.

 

[0dervish0]

Thanks everyone for your help.

borisvodofsky:

I might try disabling C1E and virtualization. Are you sure I should disable Thermal throttling?

Is XMP just No-Execute Memory Protection?

Yeah I won't bother with overclocking ram as I have read the same thing. If anything I might try changing the timing. It actually doesn't run at the specified timing originally. Do you know why? I tried lowering it but my system became unstable.

Anything else I should change?

Cheers

 

[borisvodofsky]

Thanks everyone for your help.

borisvodofsky:

I might try disabling C1E and virtualization. Are you sure I should disable Thermal throttling?

Is XMP just No-Execute Memory Protection?

Yeah I won't bother with overclocking ram as I have read the same thing. If anything I might try changing the timing. It actually doesn't run at the specified timing originally. Do you know why? I tried lowering it but my system became unstable.

Anything else I should change?

Cheers

Also disable C3 and C6, as they lower your voltages erratically during load conditions, and makes you unstable.

For the ram, enable xmp, and it should stick to that.

Xmp is the memory profile set by the people who made the stix. So it's the generally good timings that they've tested for a balance of performance, stability, and compatibility. ^_^

Since memory tweaks at best can only give you 3-5% performance, I'd just stick with xmp, instead of going out of your way with exotic tweaking.:biggrin:

I would disable thermal throttling when you're trying to overclock, because we don't know exactly when the manufacturer (mobo/cpu) decided that the CPU should throttle.

For example, My cpu runs up to 88C on core 2 (the 3rd core) on the HOTTEST mid-day sun during Intel burn test.

However, that situation would NEVER come up during normal usage, My highest daily load during the same hot weather conditions is 65-70C, which is perfectly ok for the CPU.

I'm anemic, I can't survive air-conditioning, damn you genetics

 

[BD231]

Dude, you're doing it wrong, and you have the Asus Supa Board. I'm using the z68 pro

LOL

Turn all your C states OFF.
Internal PLL overvoltage , DISABLE
LLC, HIGH
PHASE Spread spectrum, ENABLE
PHASE frequency 350
PHASE Mode, ASUS optimized
PHASE DUTY, Extreme

Set to voltage offset mode, - 0.030

And since you're using a High memory clock, increase the VCCIO

Thank God IDC was here or I wouldn't have even considered this attitude, just your semi-accurate advice on getting 4.8ghz stable.

Personally I don't run my board at extreme phase due to the sh tty temps and the massive over volting it produce's. I'd hate for the op to jump into extreme phase control and miss out on the benefits of using it correctly. Phase control is a tool meant to get your actual voltage as close to the voltage set in your bios as possible at all times, for whatever reason you just feel shooting excess volts into your chip is the smart thing to do. Yeah you might set your chip to 1.33v, but I'm sure your actual voltage is well in excess of that though hence your poor IBT temps.

Also, turning off the c-states doesn't net me a single extra mhz. Certainly tried it but upon finding out how completely useless the info was decided to keep them on. The only time you should disable C-States is if there's an instability at stock frequency, but that's what I've read.

 

[borisvodofsky]

Thank God IDC was here or I wouldn't have even considered this attitude, just your semi-accurate advice on getting 4.8ghz stable.

Personally I don't run my board at extreme phase due to the sh tty temps and the massive over volting it produce's. I'd hate for the op to jump into extreme phase control and miss out on the benefits of using it correctly. Phase control is a tool meant to get your actual voltage as close to the voltage set in your bios as possible at all times, for whatever reason you just feel shooting excess volts into your chip is the smart thing to do. Yeah you might set your chip to 1.33v, but I'm sure your actual voltage is well in excess of that though hence your poor IBT temps.

Also, turning off the c-states doesn't net me a single extra mhz. Certainly tried it but upon finding out how completely useless the info was decided to keep them on. The only time you should disable C-States is if there's an instability at stock frequency, but that's what I've read.

You experience means little as your overclock is lower than mine. Hence, you suck :whiste:

The reason I set the Phases to extreme, is because I don't trust the temperature probes in the board,

For example, if one of the probes were malfunctioning, and constantly loading the other phases, while neglecting to use a perfectly functioning phase, this would cause uneven wear over time.

I base this on the history of inaccurate motherboard sensors. :hmm:

Phases are pretty durable as they've been designed for extreme heat,

And given that the CPU will be idle most of the time, extreme mode shouldn't produce a significant amount of stress even if all the phases are active. :biggrin:

My maximum reported peak voltage during IBT is 1.36v.

In daily usage it stays at 1.33-1.344

For example Prime 95 small ftt only pushes up to 1.336v


My IBT temps are due to my ambient temp. I've checked my idle and load temps with the Air conditioning on, and they're in line with the Best results of air cooling on many forums.

However, as i've mentioned my medical condition prevents me from using AC extensively.

 

[Meghan54]

You experience means little as your overclock is lower than mine. Hence, you suck :whiste:

The reason I set the Phases to extreme, is because I don't trust the temperature probes in the board,

For example, if one of the probes were malfunctioning, and constantly loading the other phases, while neglecting to use a perfectly functioning phase, this would cause uneven wear over time.

I base this on the history of inaccurate motherboard sensors. :hmm:

Phases are pretty durable as they've been designed for extreme heat,

And given that the CPU will be idle most of the time, extreme mode shouldn't produce a significant amount of stress even if all the phases are active. :biggrin:

My maximum reported peak voltage during IBT is 1.36v.

In daily usage it stays at 1.33-1.344

For example Prime 95 small ftt only pushes up to 1.336v


My IBT temps are due to my ambient temp. I've checked my idle and load temps with the Air conditioning on, and they're in line with the Best results of air cooling on many forums.

However, as i've mentioned my medical condition prevents me from using AC extensively.

Geez, what a little pissant.

 

[0dervish0]

Do any of you possibly know why my corsair Obsidian 650d case fans have stopped working? I have checked to make sure all the fan cables are connected. In the bios they have N/A for the fan speed. Any ideas??

 

[BD231]

You experience means little as your overclock is lower than mine. Hence, you suck :whiste:

There's nothin I respect more than self sustained truth.

 

[0dervish0]

Hmmm why is it that when I reduced the vcore to 1.35v, multiplier to 47, enabled XMP, Disabled virtualization, diasbled CLE, reduced the LLC to level 3 my core temp while running prime95 was 82 degrees!! So confused now???

 

[borisvodofsky]

Hmmm why is it that when I reduced the vcore to 1.35v, multiplier to 47, enabled XMP, Disabled virtualization, diasbled CLE, reduced the LLC to level 3 my core temp while running prime95 was 82 degrees!! So confused now???

Are you sure your vcore is solidly at 1.35? make sure you're not reading VID.

read it off CPUZ or OCCT, because OCCT gives you a graph and records max and min.

the voltage should fluctuate.

You are hitting 82 C on Prime small or mix? :ninja:

 

[borisvodofsky]

Geez, what a little pissant.

You jelly?^_^

 

[borisvodofsky]

There's nothin I respect more than self sustained truth.

Oh, what a touching remark, thank-you, I agree 100% ^_^

 

[0dervish0]

Are you sure your vcore is solidly at 1.35? make sure you're not reading VID.

read it off CPUZ or OCCT, because OCCT gives you a graph and records max and min.

the voltage should fluctuate.

You are hitting 82 C on Prime small or mix? :ninja:

1.35 is the value I put into the bios for the vcore.

Was the max temp in "core temp" and I was running prime95 small fft.

At the moment I changed the multiplier back to 48, vcore to 1.37v (in bios) and PLL to 1.668v and will test it soon but at the moment my idle temps are much better.

 

[borisvodofsky]

1.35 is the value I put into the bios for the vcore.

Was the max temp in "core temp" and I was running prime95 small fft.

At the moment I changed the multiplier back to 48, vcore to 1.37v (in bios) and PLL to 1.668v and will test it soon but at the moment my idle temps are much better.

USE occt to track your voltage.

and post a print screen after 4 mins of prime small ftt. make sure occt is running. :biggrin:

http://www.ocbase.com/index.php/download