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Thread: Stuck CPU core sensor??




  1. #21
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    Default Re: Stuck CPU core sensor??

    What sort of temperature does the bios report (as it'll be hotter than at windows idle). Whats your room (ambient) temp at too?

    And are you certain you have no conflicting utility programs in windows? Also are there any exclamation marks in Device manager?
    GA-P35C-DS3R Rev2.0 F11 bios, E8200 (@3.0Ghz), OCZ DDR3 PC3-10666 Reaper 4GB (@1200Mhz), Xonar D1, 8800GTS 512, Corsair HX520 (Single 12volt line, Max 40A), WDC 3200aaks/5000aaks in AHCI mode, Vista 64 Premium.

  2. #22
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    Default Re: Stuck CPU core sensor??

    Quote Originally Posted by VorLonUK View Post
    What sort of temperature does the bios report (as it'll be hotter than at windows idle). Whats your room (ambient) temp at too?

    And are you certain you have no conflicting utility programs in windows? Also are there any exclamation marks in Device manager?
    The bios reports around 19-20C, with the room temp at 20C.

    As far as conflicting programs, this PC is pretty bare bones at this point. I have Vista 64 loaded, all system drivers, Firefox, Avast AV, and Everest. That's about it. I did not turn off windows Defender, or the AV though. Would that have an affect?

    No exclamation marks in Device manager.

  3. #23
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    Default Re: Stuck CPU core sensor??

    My E8500 behaves similar to yours. One core reads at 37C and the other at 39C. Real Temp shows no temp change unless I crank up a program that stresses the CPU. Using Intel Burn Test or Core Damage I am able to push the temps in the 40C's (hit 50C after extended Core Damage run). It would be nice to know what my idling temps are but I don't worry about it too much since the sensor seem to work when under load.
    System Specs
    CPU: Intel i7 870
    CPU Fan: Zalman 10Flex
    Motherboard: Asus P7P55-Pro
    RAM: Corsair Dominator 1600 - 2X2 gb
    GPU: XFX 4890 1gb
    PSU: Silverstone 700W
    System Drive: Intel X25-M 80gb
    Storage Drive: Hitachi 1tb
    Case: NZXT Khaos

  4. #24
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    Default Re: Stuck CPU core sensor??

    Quote Originally Posted by Keizer View Post
    The bios reports around 19-20C, with the room temp at 20C.

    As far as conflicting programs, this PC is pretty bare bones at this point. I have Vista 64 loaded, all system drivers, Firefox, Avast AV, and Everest. That's about it. I did not turn off windows Defender, or the AV though. Would that have an affect?

    No exclamation marks in Device manager.
    Ok, so the bios isn't seeing anything either at idle, ie temps lower than ambient.

    So it does really look like your Cpu sensors aren't going to give you the ability to monitor a reasonable temperature range, which is not what they were designed to do anyway.

    I think the fact that you are using a good cooler is contributing to things in this regard too, as your temps are being kept very low - which is ideal.

    What you could do for peace of mind is get yourself a fan controller and back off your coolers efficiency whilst running a benchmark etc.
    An ideal basic but good Linear Voltage Regulator is the Zalman ::: Zalman, leading the world of Quiet Computing Solutions :::
    Unlike most controllers on the market it doesn't use a switchmode method, so it is more compatable with 3pin fans in general.

    I wouldn't go mad either on trying to prove a point with something like Core Damage, it's just not worth it.
    If you wanted to you could use a combined temperature monitor/fan controller and attach one of the thermal sensors close to the base of the Heatsink, for added peace of mind. Providing your Cooler is fitted correctly, this would give you a reasonable idea after adding on some degrees as to what your core is running at at.
    I monitor the Northbridge on my setup aswell as another 3 points where seeing the temperatures at a glance is useful.

    I use this:- ::: Zalman, leading the world of Quiet Computing Solutions :::
    Although voltage output is through the "switchmode" method (3pin) which some fans are a bit erratic on.

    Edit: What cooler are you using, I thought it wasn't the stock type? Then again I've got confused to who's got what reading through the thread lol.
    Last edited by VorLonUK; 11-25-2008 at 10:55 PM.
    GA-P35C-DS3R Rev2.0 F11 bios, E8200 (@3.0Ghz), OCZ DDR3 PC3-10666 Reaper 4GB (@1200Mhz), Xonar D1, 8800GTS 512, Corsair HX520 (Single 12volt line, Max 40A), WDC 3200aaks/5000aaks in AHCI mode, Vista 64 Premium.

  5. #25
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    Default Re: Stuck CPU core sensor??

    Quote Originally Posted by VorLonUK View Post
    Ok, so the bios isn't seeing anything either at idle, ie temps lower than ambient.

    So it does really look like your Cpu sensors aren't going to give you the ability to monitor a reasonable temperature range, which is not what they were designed to do anyway.

    I think the fact that you are using a good cooler is contributing to things in this regard too, as your temps are being kept very low - which is ideal.

    What you could do for peace of mind is get yourself a fan controller and back off your coolers efficiency whilst running a benchmark etc.
    An ideal basic but good Linear Voltage Regulator is the Zalman ::: Zalman, leading the world of Quiet Computing Solutions :::
    Unlike most controllers on the market it doesn't use a switchmode method, so it is more compatable with 3pin fans in general.

    I wouldn't go mad either on trying to prove a point with something like Core Damage, it's just not worth it.
    If you wanted to you could use a combined temperature monitor/fan controller and attach one of the thermal sensors close to the base of the Heatsink, for added peace of mind. Providing your Cooler is fitted correctly, this would give you a reasonable idea after adding on some degrees as to what your core is running at at.
    I monitor the Northbridge on my setup aswell as another 3 points where seeing the temperatures at a glance is useful.

    I use this:- ::: Zalman, leading the world of Quiet Computing Solutions :::
    Although voltage output is through the "switchmode" method (3pin) which some fans are a bit erratic on.

    Edit: What cooler are you using, I thought it wasn't the stock type? Then again I've got confused to who's got what reading through the thread lol.
    I have Zalman coolers on all my PC's here in the office. When I built this system for my brother, I once again installed a Zalman cooler. His PC is running the Zalman 9700.

    UPDATE: I ran a very controlled test with Core damage. I removed the side of the case. I then had Everest on the desktop to monitor temps. I started core damage, and then reached in and gradually lowered the CPU fan RPM with the Zalman controller (The fan mate you link to above). I wanted to get the cores warmer then my previous test and simply could not accomplish that with the Zalman running at 2000 rpm.

    Anyway, by the time I got the one core up to 48C, the other core kicked in and fluctuated between 40-41C. So, both cores do work under load, but have a slight temp difference.

    This makes me feel much better because now I know the throttling will work if the cores get too warm......which is what Intel designed the whole core temp around anyway. Honestly, with this Zalman 9700, I doubt the cores will ever come close to getting too warm.
    Last edited by Keizer; 11-25-2008 at 11:28 PM.

  6. #26
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    Default Re: Stuck CPU core sensor??

    Anyway, by the time I got the one core up to 48C, the other core kicked in and fluctuated between 40-41C. So, both cores do work under load, but have a slight temp difference.

    This makes me feel much better because now I know the throttling will work if the cores get too warm......which is what Intel designed the whole core temp around anyway.
    Excellent. At least you have peace of mind that they are doing what they were designed to do and coming into play, when temperatures start to climb into the more important range.
    I would certainly keep the Cpu even in light of this, especially if it is working well.
    As I think Lsdme said in this thread, you could end up getting a poorer piece of silicon if you Rma'd it. Also you always run the risk of inadvertently damaging something as you dismantle things - always a PITA when you return something on a preference, rather than a must.
    GA-P35C-DS3R Rev2.0 F11 bios, E8200 (@3.0Ghz), OCZ DDR3 PC3-10666 Reaper 4GB (@1200Mhz), Xonar D1, 8800GTS 512, Corsair HX520 (Single 12volt line, Max 40A), WDC 3200aaks/5000aaks in AHCI mode, Vista 64 Premium.

  7. #27
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    Default Re: Stuck CPU core sensor??

    Quote Originally Posted by VorLonUK View Post
    Excellent. At least you have peace of mind that they are doing what they were designed to do and coming into play, when temperatures start to climb into the more important range.
    I would certainly keep the Cpu even in light of this, especially if it is working well.
    As I think Lsdme said in this thread, you could end up getting a poorer piece of silicon if you Rma'd it. Also you always run the risk of inadvertently damaging something as you dismantle things - always a PITA when you return something on a preference, rather than a must.
    I totally agree, and will suggest to my brother that we just keep the CPU. The system is running great, and appears to be very stable.

    In the meantime, CPU fan back up to 2000RPM.

    By the way, I really like that Zalman fan controller that you linked to. I am going to forward the link to my brother and see if he wants to fork out a little more cash!!

    Thanks for all the help on this subject. I appreciate it.

  8. #28
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    Default Re: Stuck CPU core sensor??

    No problem, just glad you got it sorted :-)
    GA-P35C-DS3R Rev2.0 F11 bios, E8200 (@3.0Ghz), OCZ DDR3 PC3-10666 Reaper 4GB (@1200Mhz), Xonar D1, 8800GTS 512, Corsair HX520 (Single 12volt line, Max 40A), WDC 3200aaks/5000aaks in AHCI mode, Vista 64 Premium.

  9. #29
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    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: Stuck CPU core sensor??

    Nice to see it does work! I thought it may just not be getting warm enough for you to see.

    I would indeed keep the CPU as it should be fine

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