Motherboard temperature?

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  1. Posts : 42
    Windows 7 Ultimate x64
    Thread Starter
       #31

    ickymay said:
    temperatures look great albeit with your fan running at 100%

    what stands out for me is the low voltage on the 12v rail , with a quality PSU that should sit solidly around 12v with a maybe 1v allowable either side.

    a poor PSU will allow voltages under load to drop and any of your devices like CPU and Ram will begin to generate errors due to lack of voltage.

    I would keep that screenshot and ask them for another decent power supply not just another swop out cheap and cheerful ?

    If you get the opportunity maybe ask them what make and model PSU they have fitted.
    Thanks for the info mate!
    I can hear my fan running all the time at 100% even if pc is idle, and it is kinda annoying.. Is there a way to set it to lower speed, or to set it so it could adjust itself automatically when higher RPM speed is needed? If there is a way to do so, please explain it to me, I've tried Speedfan but I guess I'm too stupid to configure it properly :)
      My Computer


  2. Posts : 1,476
       #32

    ickymay said:
    temperatures look great albeit with your fan running at 100%

    what stands out for me is the low voltage on the 12v rail , with a quality PSU that should sit solidly around 12v with a maybe 1v allowable either side.

    a poor PSU will allow voltages under load to drop and any of your devices like CPU and Ram will begin to generate errors due to lack of voltage.

    I would keep that screenshot and ask them for another decent power supply not just another swop out cheap and cheerful ?

    If you get the opportunity maybe ask them what make and model PSU they have fitted.
    If the +12V were that low, then his system wouldn't even function. It probably wouldn't even turn on.

    These voltages are best measured with a physical meter connected directly to the cables instead of using software. Software is notorious for being inaccurate when it comes to PSU voltages.
      My Computer


  3. Posts : 1,360
    win7 ultimate / virtual box
       #33

    I agree voltage monitors are notoriously inaccurate but they can be indicative and I have seen systems run with voltages dropping under stress to below 9v ish when PSU's are faulty.

    measuring with a meter is the shops problem I reckon and he cant break the warranty by opening the box

    re the fan you need to know if its a speed controlled version and then set it in the BIOS, at this stage that might be something else to ask the supplier about ..........
      My Computer


  4. Posts : 1,476
       #34

    ickymay said:
    I agree voltage monitors are notoriously inaccurate but they can be indicative and I have seen systems run with voltages dropping under stress to below 9v ish when PSU's are faulty.
    As measured with a meter, or with software?


    ickymay said:
    measuring with a meter is the shops problem I reckon and he cant break the warranty by opening the box

    re the fan you need to know if its a speed controlled version and then set it in the BIOS, at this stage that might be something else to ask the supplier about ..........
    Before I upgraded to Sandy Bridge, I had an E8400 in the Gigabyte EP45-UD3P. HWMonitor showed about 8V for my +12V, yet my system was working perfectly for everything I do with it. I had the same PSU that I have now (the original HX650). With my new parts for Sandy Bridge, I don't have a +12V measurement in HWMonitor. Everest is showing me 0.061V, and HWiNFO is showing 12.00V. ASUS AI Suite II is showing 12.00V too.

    So, I guess I would recommend giving HWiNFO a try (it's free):

    HWiNFO, HWiNFO32 & HWiNFO64 - Hardware Information and Analysis Tools

    HWiNFO64 Download
      My Computer


  5. Posts : 1,360
    win7 ultimate / virtual box
       #35

    TwoCables said:
    ickymay said:
    I agree voltage monitors are notoriously inaccurate but they can be indicative and I have seen systems run with voltages dropping under stress to below 9v ish when PSU's are faulty.
    As measured with a meter, or with software?
    software so agreed inaccurate but as i stated before indicative and it did highlight a PSU fault.

    to truly measure PSU output I do have a socket that links on to a motherboard plug but 9/10 I have found software for most probes that give an accurate enough reading by comparing outputs in windows to outputs in BIOS.

    To the OP what are the voltage readings in BIOS ?
      My Computer


  6. Posts : 1,476
       #36

    ickymay said:
    TwoCables said:
    ickymay said:
    I agree voltage monitors are notoriously inaccurate but they can be indicative and I have seen systems run with voltages dropping under stress to below 9v ish when PSU's are faulty.
    As measured with a meter, or with software?
    software so agreed inaccurate but as i stated before indicative and it did highlight a PSU fault.

    to truly measure PSU output I do have a socket that links on to a motherboard plug but 9/10 I have found software for most probes that give an accurate enough reading by comparing outputs in windows to outputs in BIOS.

    To the OP what are the voltage readings in BIOS ?
    Maybe, but I had an ~8V reading for my +12V back when I had an E8400 in the Gigabyte EP45-UD3P. I had the same PSU then as I do now. The reason for the +12V reading back then was due to the BIOS reading I was getting. My current motherboard shows +12.00 in the BIOS, and so does HWiNFO and even ASUS AI Suite II, but I have no +12V reading at all in HWMonitor.

    So I'm just saying, it could also be nothing.
      My Computer


  7. Posts : 42
    Windows 7 Ultimate x64
    Thread Starter
       #37

    ickymay said:
    TwoCables said:
    ickymay said:
    I agree voltage monitors are notoriously inaccurate but they can be indicative and I have seen systems run with voltages dropping under stress to below 9v ish when PSU's are faulty.
    As measured with a meter, or with software?
    software so agreed inaccurate but as i stated before indicative and it did highlight a PSU fault.

    to truly measure PSU output I do have a socket that links on to a motherboard plug but 9/10 I have found software for most probes that give an accurate enough reading by comparing outputs in windows to outputs in BIOS.

    To the OP what are the voltage readings in BIOS ?
    Voltages readings in BIOS are ok, so for that +12 is around 11.5.. I think I have figured out what was the problem! My fans were stuck to 100% all the time, even when idle, so I have changed that in BIOS so now they run at 40%, but when game is on fans get up to 80% and temps are still fine according to HWmonitor! That stress test still says that PC running unstable, but all games and programs are running fine and without crashes so far!
    Could have that 100% fan speed (and thus consuming unnecessary power) been the problem all along?
      My Computer


  8. Posts : 1,476
       #38

    egoran said:
    ickymay said:
    TwoCables said:

    As measured with a meter, or with software?
    software so agreed inaccurate but as i stated before indicative and it did highlight a PSU fault.

    to truly measure PSU output I do have a socket that links on to a motherboard plug but 9/10 I have found software for most probes that give an accurate enough reading by comparing outputs in windows to outputs in BIOS.

    To the OP what are the voltage readings in BIOS ?
    Voltages readings in BIOS are ok, so for that +12 is around 11.5.. I think I have figured out what was the problem! My fans were stuck to 100% all the time, even when idle, so I have changed that in BIOS so now they run at 40%, but when game is on fans get up to 80% and temps are still fine according to HWmonitor! That stress test still says that PC running unstable, but all games and programs are running fine and without crashes so far!
    Could have that 100% fan speed (and thus consuming unnecessary power) been the problem all along?
    Does HWMonitor say 11.5V? Or does it still say about 8V?
      My Computer


  9. Posts : 7,466
    Windows 10 Home Premium 64bit sp1
       #39

    Don't worry about that mine reads something like 11.71 I think it has a misreading when it come to accurate voltages

    me and a few others came to that conclusion but temps are dead on
      My Computer


 
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