Alternating clock speeds and multiplyer on cpuz with quad core?

bud951 · Jan 18, 2008

This is weird. I have a Q6600 running stable at 3206mhz and it says so in the performance section of ntune but on cpuz I get alternating mutiplyers. One second I get 3206mhz with 9x multi and the next second I get 2137mhz 6x multi. FSB is the same at 1425. Is there something wrong? Are all my cores properly overclocked? Maybe a problem with cpuz? Version is 1.42. Info is greatly appreciated. Thanks.

cdawall · Jan 18, 2008

its intel speedstep when its not working hard it drops the speed down to save energy

bud951 · Jan 18, 2008

Oh.. I thought that was off in bios. Should I keep it on? Any probs with it? Thanks.

cdawall · Jan 18, 2008

shouldnt be any issues with it

Graogrim · Jan 19, 2008

It's odd. I've disabled Speedstep in my BIOS as well and I'm seeing the same behavior in CPU-Z with my E2200.

One of my own theories is that it's possible that while disabled in the BIOS, whatever circuitry is responsible for Speedstep's functioning continues to run but is decoupled from actually changing anything. And whatever CPU-Z polls to get its numbers just happens to be derived from this circuitry.

Of course it could also be that the BIOS setting in question isn't actually doing anything. I haven't figured out a way to tell yet.

Graogrim · Jan 19, 2008

OK a bit of further research has revealed that this behavior is caused by C1E (Enhanced Halt State). There are utilities such as RightMark CPU Clock which can disable this behavior, and some BIOSes offer the ability to disable it as well. Although at this point I'm not sure there's a reason to do so except for diagnostic purposes.

kwchang007 · Jan 19, 2008

Graogrim said:
OK a bit of further research has revealed that this behavior is caused by C1E (Enhanced Halt State). There are utilities such as RightMark CPU Clock which can disable this behavior, and some BIOSes offer the ability to disable it as well. Although at this point I'm not sure there's a reason to do so except for diagnostic purposes.

Yes speedstep and C1E BOTH have to be stopped I believe.

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System Name	Making Love
Processor	Intel SandyBridge 2600K
Motherboard	Gigabyte GA-P67A-UD7
Cooling	Corsair H70 Liquid Cooler
Memory	8 GB DDR3 Corsair Dominator 1600
Video Card(s)	Saphire Radeon 6970 2gb + XFX GeForce 8800GT 512mb Hybrid PhysX
Storage	Crucial 128 GB SSD for os and games + WD 2TB for storage
Display(s)	Samsung SyncMaster T260 LCD 26"
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Audio Device(s)	Auzen X-Fi Prelude 7.1 + Logitech Z-5500 Digital THX Speakers
Power Supply	Corsair AX1200
Software	Microsoft Windows 7 Ultimate x64

System Name	All the cores
Processor	2990WX
Motherboard	Asrock X399M
Cooling	CPU-XSPC RayStorm Neo, 2x240mm+360mm, D5PWM+140mL, GPU-2x360mm, 2xbyski, D4+D5+100mL
Memory	4x16GB G.Skill 3600
Video Card(s)	(2) EVGA SC BLACK 1080Ti's
Storage	2x Samsung SM951 512GB, Samsung PM961 512GB
Display(s)	Dell UP2414Q 3840X2160@60hz
Case	Caselabs Mercury S5+pedestal
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Alternating clock speeds and multiplyer on cpuz with quad core?

bud951

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cdawall

where the hell are my stars

bud951

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cdawall

where the hell are my stars

Graogrim

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Graogrim

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kwchang007

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