CPUZ jumpy clock speeds

[NoM8s]

On my 3.6 overclock CPUZ doesn't show the same core speeds, is there a way to stabalise the values. Folow the links for screenies.Any advice would be appreciated. Thanks

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[Flipped Gazelle]

Doesn't Core i7 dynamically adjust core speeds based on workload? Do you have C1E enabled in BIOS?

I haven't done any builds with i7, so am not really familiar with the ins and outs.

 

[Shebnay]

Originally posted by: Flipped Gazelle Do you have C1E enabled in BIOS?

Yeah, sounds like that's the case.

 

[NoM8s]

Originally posted by: NoM8s
On my 3.6 overclock CPUZ doesn't show the same core speeds, is there a way to stabalise the values. Folow the links for screenies.Any advice would be appreciated. Thanks

Text
Text

I'll check it later and let you know if it does the trick. Thanks for the replies.

 

[Idontcare]

Read the sticky's please, they are created for your benefit and are done so at the expense of the someone's time (namely the mods).

Topic Title: Is your processor Running slower than you think it should be ? Or at a different multiplier than it should be?

 

[NoM8s]

Originally posted by: NoM8s

Originally posted by: NoM8s
On my 3.6 overclock CPUZ doesn't show the same core speeds, is there a way to stabalise the values. Folow the links for screenies.Any advice would be appreciated. Thanks

Text
Text

Read the sticky's please, they are created for your benefit and are done so at the expense of the someone's time (namely the mods).

Topic Title: Is your processor Running slower than you think it should be ? Or at a different multiplier than it should be?

Does the link also relate to Core i7 processors too, if so I appologise for not being more vigilant.

 

[ch33zw1z]

Originally posted by: NoM8s

Originally posted by: NoM8s

Originally posted by: NoM8s
On my 3.6 overclock CPUZ doesn't show the same core speeds, is there a way to stabalise the values. Folow the links for screenies.Any advice would be appreciated. Thanks

Text
Text

Read the sticky's please, they are created for your benefit and are done so at the expense of the someone's time (namely the mods).

Topic Title: Is your processor Running slower than you think it should be ? Or at a different multiplier than it should be?

Does the link also relate to Core i7 processors too, if so I appologise for not being more vigilant.

The sticky applies to any CPU that throttles based on workload. As long as the maximum clock speed is reached when the CPU is under full load then you have nothing to worry about.

 

[Flipped Gazelle]

Originally posted by: NoM8s

Topic Title: Is your processor Running slower than you think it should be ? Or at a different multiplier than it should be?

Does the link also relate to Core i7 processors too, if so I appologise for not being more vigilant.

The sticky is fairly generic, and doesn't specifically mention Core i7, but it does apply.

 

[NoM8s]

OK thanks for that, something else I've learned.

 

[nerp]

Leave C1E and EIST on. Saves power, heat, voltages. . . and you still have all the power of your overclock when you need it.

 

[daw123]

Does EIST and C1E still work if the CPU is o/c'd?

 

[Idontcare]

Originally posted by: daw123
Does EIST and C1E still work if the CPU is o/c'd?

Depends on what you change during the OC and what mobo you use.

Some mobo's will not activate the C1E voltage reduction (lower powerstate VIDs) on idle if the BIOS has been set to a specific voltage that is not "auto".

Likewise some mobo's will not activate the EIST multiplier reduction (lower multiplier) on idle if the BIOS has been set to a specific CPU multiplier that is not "auto".

In general if you leave C1E and EIST and only overclock your rig by increasing the FSB (and leave Vcore and multiplier alone) then the power savings work just fine.

Otherwise it is hit and miss whether your mobo will allow the power-saving settings to override your user specified settings in the BIOS when the chip goes idle.

 

[daw123]

Originally posted by: Idontcare

Originally posted by: daw123
Does EIST and C1E still work if the CPU is o/c'd?

Depends on what you change during the OC and what mobo you use.

Some mobo's will not activate the C1E voltage reduction (lower powerstate VIDs) on idle if the BIOS has been set to a specific voltage that is not "auto".

Likewise some mobo's will not activate the EIST multiplier reduction (lower multiplier) on idle if the BIOS has been set to a specific CPU multiplier that is not "auto".

In general if you leave C1E and EIST and only overclock your rig by increasing the FSB (and leave Vcore and multiplier alone) then the power savings work just fine.

Otherwise it is hit and miss whether your mobo will allow the power-saving settings to override your user specified settings in the BIOS when the chip goes idle.

Thanks IDC.

 

[i7guy1]

I've read other places with regards to the P6T deluxe at least, to enable APCI 2.0 in the bios to resolve this issue.

 

[Diogenes2]

Resolve what issue ?

 

[i7guy1]

Jumpy clocks.

 

[Idontcare]

Originally posted by: i7guy1
Jumpy clocks.

Are you talking about jumpy clocks intentionally caused by CPU spread spectrum or jumpy clocks intentionally caused by EIST SpeedStep?

 

[ilkhan]

Originally posted by: Idontcare
Some mobo's will not activate the C1E voltage reduction (lower powerstate VIDs) on idle if the BIOS has been set to a specific voltage that is not "auto".

Otherwise it is hit and miss whether your mobo will allow the power-saving settings to override your user specified settings in the BIOS when the chip goes idle.

Are there are X58 boards that have been confirmed to use the powerstate VID on idle if the voltage is set manually?
ie will use lower voltage while idle with a manually adjusted vCore

 

[Idontcare]

Originally posted by: ilkhan

Originally posted by: Idontcare
Some mobo's will not activate the C1E voltage reduction (lower powerstate VIDs) on idle if the BIOS has been set to a specific voltage that is not "auto".

Otherwise it is hit and miss whether your mobo will allow the power-saving settings to override your user specified settings in the BIOS when the chip goes idle.

Are there are X58 boards that have been confirmed to use the powerstate VID on idle if the voltage is set manually?
ie will use lower voltage while idle with a manually adjusted vCore

None that I have specific memory of, but I don't dip into the mobo forums all that extensively so don't take my word on it. You are best to ask people who have the boards for their specific experience.

 

[Elganja]

Originally posted by: Idontcare

Originally posted by: ilkhan

Originally posted by: Idontcare
Some mobo's will not activate the C1E voltage reduction (lower powerstate VIDs) on idle if the BIOS has been set to a specific voltage that is not "auto".

Otherwise it is hit and miss whether your mobo will allow the power-saving settings to override your user specified settings in the BIOS when the chip goes idle.

Are there are X58 boards that have been confirmed to use the powerstate VID on idle if the voltage is set manually?
ie will use lower voltage while idle with a manually adjusted vCore

None that I have specific memory of, but I don't dip into the mobo forums all that extensively so don't take my word on it. You are best to ask people who have the boards for their specific experience.

My eVGA one reduces the multiplier and voltage just fine when idle overclocked and my cpu V is manually set. It goes down to ~1.12V w/ the 12x multiplier idle and ramps up to ~1.33V w/ 21x multiplier. You can see all my settings by clicking the link in my sig.

What I did find interesting however, is that for this to work correctly both CxE and EIST (SpeedStep) would need to be activated. For now I have EIST "On" and CxE "Auto". I have noticed no ill effects overclocked (have done many hours of stress testing with LinX Full memory and Prime95 blend test)

 

[exar333]

Originally posted by: Elganja

Originally posted by: Idontcare

Originally posted by: ilkhan

Originally posted by: Idontcare
Some mobo's will not activate the C1E voltage reduction (lower powerstate VIDs) on idle if the BIOS has been set to a specific voltage that is not "auto".

Otherwise it is hit and miss whether your mobo will allow the power-saving settings to override your user specified settings in the BIOS when the chip goes idle.

Are there are X58 boards that have been confirmed to use the powerstate VID on idle if the voltage is set manually?
ie will use lower voltage while idle with a manually adjusted vCore

None that I have specific memory of, but I don't dip into the mobo forums all that extensively so don't take my word on it. You are best to ask people who have the boards for their specific experience.

My eVGA one reduces the multiplier and voltage just fine when idle overclocked and my cpu V is manually set. It goes down to ~1.12V w/ the 12x multiplier idle and ramps up to ~1.33V w/ 21x multiplier. You can see all my settings by clicking the link in my sig.

What I did find interesting however, is that for this to work correctly both CxE and EIST (SpeedStep) would need to be activated. For now I have EIST "On" and CxE "Auto". I have noticed no ill effects overclocked (have done many hours of stress testing with LinX Full memory and Prime95 blend test)

Same here; the P6T also reduces the multipler and voltage just fine with the OC I am currently running. I have'nt tested if I enable 1 and not the other to see if they work, but both EIST and CxE are enabled.