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Speedstep doing funny things

86 5.0L

Supreme [H]ardness
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Hey guys, recently I started noticing weird slowdown issues, and CPU-Z reports my 920s multiplier jumping from x1 to x22 randomly, no matter what im doing, this started happening today, nothing was installed and nothing was changed in the BIOS.

any ideas?
 
with itunes open is when it jumps around the most...
 
Hey guys, recently I started noticing weird slowdown issues, and CPU-Z reports my 920s multiplier jumping from x1 to x22 randomly, no matter what im doing, this started happening today, nothing was installed and nothing was changed in the BIOS.

any ideas?

Disable speedstep.
 
do you have the latest CPU-Z??
try using several application at once, or prime95, something that uses a lot of cpu power, then check CPU-Z and see how it goes
 
do you have the latest CPU-Z??
try using several application at once, or prime95, something that uses a lot of cpu power, then check CPU-Z and see how it goes

latest CPU-Z, with prime95 running all 8 threads are at 100% and clocks in at a steady 280xMhz, but with multiple applications(itunes, firefox, word, windows live, anti-virus scan, photoshop) it will still jump around, even down to 133Mhz(x1 multiplier)
 
latest CPU-Z, with prime95 running all 8 threads are at 100% and clocks in at a steady 280xMhz, but with multiple applications(itunes, firefox, word, windows live, anti-virus scan, photoshop) it will still jump around, even down to 133Mhz(x1 multiplier)

i'm not familiarized with Core i7 Speedstep, maybe it's a revision version of Core 2 Speedstep, but it looks about right, it reduces the frequency of your CPU when you are not using it at its fullest, so no problem there.
 
yeah but I dont need it to go to 133Mhz when im playing a game or trying to play music :S
 
yeah but I dont need it to go to 133Mhz when im playing a game or trying to play music :S

do you notice a slowdown, not on CPUZ but rather does it feel laggy?
it shouldn't go that low when playing a 3d game,
 
yup it gets laggy, games stutter, music stutters, and the occasional hiccup when switching between lots of applications
 
If you want a more accurate look at your multiplier then try i7 Turbo V8.

http://www.fileden.com/files/2008/3/3/1794507/Turbo.zip

Traditional programs that read the multiplier once per second are not very accurate at idle, especially for Core i7.

Keep an eye on the Calculated Multiplier in i7 Turbo. It calculates the average multiplier for each thread over a 1 second interval and displays this info in real time. It uses the Intel recommend method as outlined in their Core i7 Turbo White Paper.

http://download.intel.com/design/processor/applnots/320354.pdf

This program also works accurately on Core 2 processors but most users have been brain washed by CPU-Z, etc. for so long that they might not believe what i7 Turbo is telling them. :)
For accurate results, avoid using HW Monitor or Everest or any program that monitors a lot of motherboard voltages while testing. These can interfere with i7 Turbo.

Edit: The minimum multiplier on a Core i7 is 12.0 so don't believe everything that CPU-Z tells you.

Edit#2: There is another program included in the above download called MultiBoost.exe. Give that a try on your Core i7 when playing around with i7 Turbo.

If this tool is of any use to you then give the [H]ard i7 Turbo thread a bump:
http://www.hardforum.com/showthread.php?t=1417780

It needs it.
 
Last edited:
If you want a more accurate look at your multiplier then try i7 Turbo V8.

http://www.fileden.com/files/2008/3/3/1794507/Turbo.zip

Traditional programs that read the multiplier once per second are not very accurate at idle, especially for Core i7.

Keep an eye on the Calculated Multiplier in i7 Turbo. It calculates the average multiplier for each thread over a 1 second interval and displays this info in real time. It uses the Intel recommend method as outlined in their Core i7 Turbo White Paper.

http://download.intel.com/design/processor/applnots/320354.pdf

This program also works accurately on Core 2 processors but most users have been brain washed by CPU-Z, etc. for so long that they might not believe what i7 Turbo is telling them. :)
For accurate results, avoid using HW Monitor or Everest or any program that monitors a lot of motherboard voltages while testing. These can interfere with i7 Turbo.

Edit: The minimum multiplier on a Core i7 is 12.0 so don't believe everything that CPU-Z tells you.

Edit#2: There is another program included in the above download called MultiBoost.exe. Give that a try on your Core i7 when playing around with i7 Turbo.

If this tool is of any use to you then give the [H]ard i7 Turbo thread a bump:
http://www.hardforum.com/showthread.php?t=1417780

It needs it.

excellent post :D rep for u
 
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