Intel Core 2 6600 on Asus P5NSLI Core Speed

Hello,
I have an Asus P5NSLI with an Intel Core 2 6600 and CPU-Z Installed.
I've tried to disable C1E and Speedstep technology but CPU-Z always report me :

Core Speed : 1600 Mhz
Multiplier : x 6.0
Bus Speed : 266Mhz
Rated FSB : 1066 Mhz

is this correct ? I think that i have poor performance...

Attached you can find cpu-z report
Thanks
Dario
cpuz.txt
tamburelloAsked:
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tamburelloAuthor Commented:
I miss something : i've downloaded and flash bios to last version...
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CallandorCommented:
Your bus speed should be 400MHz - that should push your cpu speed up to 2.4GHz.  Perhaps your motherboard is not recognizing your cpu and you need to set it manually?
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LifesToyCommented:
Your multiplier is too low. It should be x9 With a core speed of 2400mhz. Multiple ways to fix it, first main thing I would try is entering your bios and knocking your multiplier up a bit.
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CallandorCommented:
I was wrong about the FSB - 266 is correct for cpu-z, and LifesToy is right about the multiplier - however, the E6600 has a fixed multiplier of 9x, and you shouldn't be able to change it.  How can it be reporting 6x?  There's probably something wrong with the recognition of this cpu.  Try resetting the BIOS and see if it corrects the problem.
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LifesToyCommented:
Callandor is also right about the E6600 being set in multiplier, I forgot the Conroe stock only was changeable on the extreme editions. Before messing with your bios why not run another program or two that can test your speeds? Intel desktop control center, or Lavalys Everest Ultimate Edition? This way we can rule out CPU-Z making a mistake.
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Gary CaseRetiredCommented:
CPU-Z is mis-reporting the operating characteristics of your CPU.   I just checked and it does the same thing with my E6850 (thinks the multiplier is 6 instead of 9).   This is a CPU-Z error ==> nothing's wrong with the actual operation of your CPU.

You can confirm the actual frequency your CPU is operating at by downloading Intel's Processor Identification Utility:  http://downloadcenter.intel.com/T8Clearance.aspx?sType=&agr=N&ProductID=1881&DwnldID=7838&url=/7838/eng/pidenu16.msi&PrdMap=&strOSs=&OSFullName=&lang=eng

... Install that and run it => I'm sure it will show that your CPU is running at 2.4GHz as designed :-)
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Gary CaseRetiredCommented:
... you can also simply right-click on My Computer and select Properties.   One thing it will show you is the current operating speed of your CPU :-)
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tamburelloAuthor Commented:
No, there's something wrong (i think). I just downloaded Intel's Processor Identification Utility and report speed EXPECTED : 2.40 GHZ REPORTED CORE 1 : 0.91GHZ REPORTED CORE 2 : 0.91GHZ
System Bus : EXPECTED : 1066 Mhz  REPORTED CORE1 : 612mhz REPORTED CORE 2 :  612Mhz

I've obviously tried to enter bios to set multiplier (that is fixed) and always fsb. But the only parameter that i can change is in Overclocking settings and is the FSB. Well, i don't want to overclock my CPU, just want that goes right !

I attach Intel's Processor Identification Utility Logs
intel.txt
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tamburelloAuthor Commented:
Yes, there's something wrong... i also dl everest and this is the results :

 Proprietà processore:
      Tipo processore                                   DualCore Intel Core 2 Duo E6600
      Alias processore                                  Conroe
      Livello di revisione del processore               B2
      Engineering Sample                                No
      Nome processore                                   Intel(R) Core(TM)2 CPU 6600 @ 2.40GHz
      Revisione                                         000006F6h
      Voltaggio core                                    1.163 V

    Velocità processore:
      Velocità processore                               1600.0 MHz  (originale: [ TRIAL VERSION ] MHz)
      Moltiplicatore processore                         6.0x
      FSB processore                                    266.7 MHz  (originale: 266 MHz)
      Bus memoria                                       333.3 MHz
      Rapporto DRAM:FSB                                 5:4

    Cache processore:
      Cache codice L1                                   32 KB per core
      Cache dati L1                                     [ TRIAL VERSION ]
      Cache L2                                          4 MB  (On-Die, ASC, Full-Speed)

I also attach complete reports....
Report.txt
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Gary CaseRetiredCommented:
Wow !!   I don't think the Intel Processor ID Utility is chipset dependent ... but this makes me wonder !!

First, a follow-up note r.e. CPU-Z.    CPU-Z reports the actual current speed and multiplier ... so if Speedstep is engaged (the CPU is relatively idle), the lower multiple is actually correct.   I confirmed this with my system => started an instance of a CPU-intensive task (I did a video rendering operating; but any CPU-intensive task will do), and THEN ran CPU-Z and it showed the full 3GHz and x9 multiplier it should for my E6850.   ... and within a couple of seconds of stopping the rendering operation the CPU throttled back to the x6 multiplier.

I suspect if you did the same on yours you'd have similar results.   Run Prime95 or any other CPU-intensive program and then run CPU-Z and see what it reports.

... but the good news is that CPU-Z does, in fact, report the correct multiplier => the CPU has simply reduced its internal multiplier to save power.

... HOWEVER,  I'm surprised at your results from the Intel utility => which automatically puts the CPU in full power before it reports.  Either the Intel utility doesn't work right with your chipset (which it SHOULD); or something's "strange" in your BIOS settings.   I'd reset your BIOS to "fail safe" settings (I didn't check your manual for just what that's called in this case ... but you get the idea), and then see what is reported.

But first I'd run Prime95 and then CPU-Z and see what it reports.   If it shows all is well ... all is probably well.
But I'm sure curious about the Intel PID Utility !! :-)
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Gary CaseRetiredCommented:
Actually Everest looks fine ... given what I just told you about CPU-Z.   It's simply reporting the CURRENT multiplier and effective core speed, just like CPU-Z.   I'm sure if you run an instance of Prime95 and then run Everest you'll get the full 2.4GHz and multiplier of 9.

... That's actually good news => it apparently means that your system's running fine; but the Intel PID utility doesn't work with your chipset.   I'm surprised Intel makes no mention of this utility being chipset dependent (and I wouldn't expect it to be).   I'll have to do some further checking ...

... but meanwhile, I'm sure your system's just fine.   Run Prime95 and then confirm that with CPU-Z and Everest.

You can download Prime95 here:  http://files.extremeoverclocking.com/file.php?f=103
... When you run it, just click on the "Just Stress Testing" button and then, while it's running, run CPU-Z and Everest and I'm sure you'll see the x9 multiplier and 2400MHz core speed you expect.
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LifesToyCommented:
I have an e6600 like tamburello and using any of the defined methods above always shows my core at full speed. I know that cpu-z used to do that but not sure it still does. With other programs supporting the statement of his processor being lower than it should, I think there may be something more wrong here than a misreporting. You said you got the latest bios, which one? 1401 or 1502?
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Gary CaseRetiredCommented:
The latest CPU-Z will report the actual current speed ... and with any CPU that supports Speedstepping that speed will be less than the max unless the CPU is stressed.

The only thing that seems strange here is the reporting of Intel's Processor ID Utility ... this is the first time I've seen it report incorrectly.   But I've also not tried it on an nVidia chipset board, so that may very well just be a program that doesn't work here [For example, someone suggested using Intel Desktop Control Center ... and that DEFINITELY will not work on non-Intel chipsets, so it wouldn't work here.].   I am surprised, however, that Intel's site doesn't mention any restrictions for the Processor ID Utility.

The BIOS (v1401 => shown on the CPU-Z report he posted) on the board is well past what's needed for E6600 support, so that's not likely an issue.

I suspect both CPU-Z and Everest will show x9 multiplier and 2400MHz core clock under load -> which most likely means all is well.   But I am perplexed at the Processor ID results :-)

==> You indicated your CPU is always shown at full speed ... do you have Speedstepping turned off ??

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LifesToyCommented:
Sorry, long night. I mentioned the Intel desktop control center and that was a bad thought for the nvidia chipset, I run an intel board so was kind of second nature. Again sorry, and I think long ago I shut it off because of BSOD problems I was getting from it when using the full processor. You are right about the bios and it should be perfectly fine for running an e6600. I have only found one other mention of the processor identification utility showing wrong on an asus board and the person realized his system was overheating and it thermal throttled itself.

Garycase is most likely right about what is going on, I am not entirely sure that everest does the same as cpu-z but that doesn't mean your system isn't speedstepping itself or as I just mentioned a thermal throttle.
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tamburelloAuthor Commented:
I've bios 1401. Tried Prime95 torture test and get same result with cpu-z.
I've put speedstep on again and have same result.Core speed reports 1600Mhz :( and 6x.
what can i do ?
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Gary CaseRetiredCommented:
Since you've modified some of the operating parameters in the BIOS, there's a chance you've changed something you shouldn't have.   Did you reset all of the BIOS parameters to a "fail safe" mode?   Might even be a good idea to totally rseet CMOS => unplug the system and remove the battery from the motherboard for a minute.
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LifesToyCommented:
Since you have Windows XP did you make sure you have no power management options on while having it shut off in bios? From what I have read windows xp won't stop the reduction unless they are both set to off. During your prime95 cpu-z didn't change at all? And your temperatures are below 70c? Very puzzling. Garycase has a good point on putting your bios fully back to default/clearing it.
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tamburelloAuthor Commented:
I've load setup defaults value in bios at this moment... not completely clear with jumper...and just change nvidia raid bios settings to on because my boot disk is an array with a raid5.On my Win XP All the setting are to "never" (turn off monitor , turn off disk and standby). I confirm you that during prime 95 self and torture test cpu-z d change of about one mhz (from 1600.0 to 1600.2 or .3) and same thing for bus speed and rated fsb. But Multiplier is fixed to 6.0 !!! Always 1600 Mhz... The only way is to try reset the bios clearing it ? Ok i try now... just some minute and i post the answer
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Gary CaseRetiredCommented:
You did START the test -- right?   After you run Prime95 you have to select Options - Torture Test => pick the "Blend" choice (default) and you should then see a note like this that shows it's starting the test:

   Beginning a continuous self-test to check your computer.
   Please read stress.txt.  Choose Test/Stop to end this test.
   Test 1, 4000 Lucas-Lehmer iterations of M19922945 using 1024K FFT length.

While it's doing that if you run CPU-Z and/or Everest they should show multiplier 9 and core clock at 2400.   Did you do it exactly like this??

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tamburelloAuthor Commented:
Gary obviously i start the test. BUT AFTER CLEAR CMOS AND BATTERY ....launch cpu-z and it sign correctly 2400 mhz ... 9x ... also without pcprime test....but after a minute : 1600MHZ AGAIN !!! Relaunch PCprime but nothing... always 1600mhz...
Is there the possibility that some process low core speed to 1600 ???

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CallandorCommented:
I can confirm that cpu-z reports a 9x multiplier for my E6600.

It may be that you have a program that tries to save power, or you are running in a power saving profile.  Check in control panel under power options to see if this has been chosen.
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tamburelloAuthor Commented:
Ok this is the situation . I power off my PC for about 1 hour to make it cold. I've reinstalled ACPI drivers. Checked Power Options (all to off). Now at reboot Cpu-z reports a 9x multiplier at 2400mhz and when CPU is idle shift at 6x at 1600mhz. This is normal (i think). If everythings works fine when PC is hot (i've 13 fan coil !!!) we've done a great job.
I confirm you later !
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Gary CaseRetiredCommented:
Yes, that's what I'd expect -- and if you run Prime95 it should switch back to 9X.

... are you monitoring your CPU temperatures?   Download CoreTemp [http://www.experts-exchange.com/Hardware/Components/CPU_Processors/Q_23136983.html?cid=238#a20824126 ]and watch the temperatures for the two cores (they'll be displayed in the taskbar by the clock).   I doubt that's what your issue is here, but it doesn't hurt to check and confirm.
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tamburelloAuthor Commented:
Ok, now PC is hot.... frequency is stabilized to 1600mhz at 6x... no more 2400 at9x... Asus PC PROBE II tell me that CPU temperature is at 74°, but coretemp show me core #0 and #1 temperature at 124° and tell me that i must shutdown immediately my pc....uhm very strange...reporting mistake or reality ? I'm using original Intel fan coil that works fine...
I don't want a 2,4Ghz core duo running at 1,6 !!!
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tamburelloAuthor Commented:
I've tried also RightMark CPU Clock Utility, and it tell me that CPU core overheat detected...Current CPU throttle level : 57%...something goes wrong....please help me. I've really 14 fan on my case...dunno what can i do to reduce temp.
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Gary CaseRetiredCommented:
Both Asus Probe and CoreTemp are clearly indicated far too high a temperature ==> does Everest also show this?

I think I'd remove the heatsink; clean off the thermal compound from both the CPU and heatsink [Scrape with a credit card; then remove the rest with isopropyl alcohol and a clean cloth]; and then remount it with new thermal compound (Artic Silver 5 is excellent).
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CallandorCommented:
I agree - it sounds like thermal throttling is kicking in a few minutes after cold booting, which indicates an overheating cpu.  The temperature readings seem to confirm that - if this is a retail cpu with the stock heatsink, you may not have pushed all four plastic retainers in all the way.  Check that the heatsink is flush against the cpu.
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LifesToyCommented:
Should have made him check the temperature earlier since it was mentioned previously about thermal throttling.

You can try speedfan and motherboard monitor to also confirm if it is a heat issue, the last test would be to put your hand within about 6 to 8 inches of your processor and if it gives off a lot of heat (oven like) then it is overheating.

I would as garycase and callandor have suggested clean off the CPU and put new thermal paste on it then put the heatsink back on. I would recommend Arctic cooling mx-2 for the thermal paste because it doesn't have as long of a burn in time as Arctic Silver 5 does. check to see if your CPU is concave or Convex (with a dip or bump on the chip) this may be your problem for getting a bad interaction of heat dissipation. Clean it with a credit card, razor, wipe the rest off with alcohol and a lint free rag or Q-tips, reapply the paste and make a thin layer across the whole chip face and apply the heatsink, lock it in place and give the computer a start up to see what happens. It would be prudent to make sure all of your fans that you have are working and are pushing the heat in the right direction. If your fan on the heatsink died then this may also be your problem or if your fans are in backwards pushing the cool air into the PC that warms up and always stays in.
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tamburelloAuthor Commented:
OkOk, but Asus Probe and also Everest reports 74°. Is it too high ? With the hand at 2 cm from the CPU i don't feel any heat. L8r i try to clean CPU and put new thermal paste.
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Gary CaseRetiredCommented:
"... Is it too high ? " ==> YES !!   The thermal specification for an E6600 is 60.1°C ==> that's the HIGHEST it should ever get ... and it should normally be well below that.

As an example, the thermal spec for my E6850 is 72°C .. but it's typically in the low 30's (33°C as I write this), and hits just over 50°C when I stress it to 100% for an extended time (usually 52-53°C).   It has NEVER been above 55°C.

Your CPU may very well be getting so hot that it reaches the thermal throttling point -- the CPU automatically starts clocking itself internally at a lower speed in an effort to reduce the heat generation.   This can have a variety of strange results ... and may very well account for why the Intel Processor ID utility had the strange results earlier.

I would definitely remove the heatsink; clean it off; apply thermal compound; and reattach it --> being VERY careful that you get it properly cleaned; the new compound properly applied; and the heatsink securely attached to the mounting points.


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LifesToyCommented:
I concur that the temperature if it really is that high is too high.

Weird that you feel no heat with your hand close to the CPU. Anything putting off that amount of temperature should easily be felt by the human skin.

Good luck on the cleaning and when you do, check to see if there is a bump or grove on the CPU.
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CallandorCommented:
You may not feel any heat if the heatsink itself is not making good contact with the cpu.  The cpu gets hot, but the heatsink does not, and overheats.
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tamburelloAuthor Commented:
OOOK men !!! I've cleaned fan and cpu, put new thermal paste and everything work great !!! coretemp tell me 56-57°, cpu-z tell me 2,4Ghz when cpu works and 1600 when is idle...
GREAT JOB !!! PROBLEM SOLVED !!!

Thanks
Dario
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Gary CaseRetiredCommented:
Just as a matter of interest, does the Intel Processor ID Utility now report the right speed?
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