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Have you ever seen this before?

post #1 of 13
Thread Starter 
I've just bought my dream rig and am ready to dive into some overclocking.


I downloaded cpu-z and it shows that my stock e6600 is running at 1600 MHz (266.7 MHz FSB and the multiplier is 6X)...Wierd! I've flashed to the latest BIOS and the post screen says I'm running at the expected stock speed and the multiplier is 9X. Is cpu-z wrong or is the post screen? To complicate matters, I upped the FSB to 1086 from 1066 and cpu-z doesn't show any change whatsoever. If I up the FSB to 1540 for a core speed of approximately 3400 MHz, my BIOS says I'm in safe mode upon reboot and have to hit the F1 key to continue. So the BIOS seems to think something has changed, but again cpu-z shows no change to the fsb. Am I doing something wrong or is my cpu suspect?
The TaskMaster
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The TaskMaster
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post #2 of 13
Go into BIOS and Disable speed stepping..... Then you should see your overclock on CPU-z
    
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post #3 of 13
Welcome to Overclock dot net!

Open CPU-Z and look at the 1600MHz, then open or load something and watch the speed jumps up to the max speed that it is set in BIOS.

I don't know what the option is called in your BIOS, possible Speed Step or C1E, but the option is no harm to be enable. What it does is it declocks your CPU when you are idle (Power Save, laptop have this) and then jumps back to max speed when you load something.

When you overclock your stock speed higher, it'll declock at a higher speed. I personally like this option.
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post #4 of 13
yes i've seen it be4..... disable C1E foo
luckii.3
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post #5 of 13
Thread Starter 
I went into the BIOS and speed stepping was already disabled. Opening a program caused the core speed to jump to 2400 and the multiplier to 9X, and then it quickly went back to 1600 and 6X. When I open something else the core speed jumped to 1600.1 and the multiplier stayed at 6x.
The TaskMaster
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The TaskMaster
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post #6 of 13
It's just a power saving feature of these CPU's. It will change back to full speed when needed so fast it's impossible to notice.
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post #7 of 13
Another note to remember when you disable speed stepping and C1E, is that having your processor running at full speed will put out a lot more heat. Speed Stepping and C1E are meant to bring the processor to an idle state to reduce power consumption and to reduce heat.
    
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Raptor X 150GB;2x WD 200GB;WD 250GB;WD 36GB Raptor Windows Vista™ Ultimate x64 Acer 24" LCD Logitech G15 Keyboard 
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post #8 of 13
FYI: Both Intel SpeedStep Tech. and C1E need to be disabled to fully disable speedstepping.
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R'lyeh
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post #9 of 13
are you running vista because vista itself throttles your cpu as well. If you go to the power settings and change it to performance it wont throttle it.
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post #10 of 13
Thread Starter 
I'm using windows XP professional which I'll add to my signature.
The TaskMaster
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CPUMotherboardGraphicsRAM
E6600 3.2 GHz XFX 680i LT XFX 8800 GTX 2 Gigs Patriot DDR2-8500 Extreme 
Hard DriveOptical DriveOSMonitor
Seagate 320 gig Sata (x2) Asus Quietrack Windows XP Pro Samsung 205BW 
PowerCase
OCZ 700 GameExtreme Antec Gamer 900 
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The TaskMaster
(13 items)
 
  
CPUMotherboardGraphicsRAM
E6600 3.2 GHz XFX 680i LT XFX 8800 GTX 2 Gigs Patriot DDR2-8500 Extreme 
Hard DriveOptical DriveOSMonitor
Seagate 320 gig Sata (x2) Asus Quietrack Windows XP Pro Samsung 205BW 
PowerCase
OCZ 700 GameExtreme Antec Gamer 900 
  hide details  
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