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Thread: Unable to pull down core temps on E8500

  1. #1
    Join Date
    Feb 2009
    Posts
    81

    Unable to pull down core temps on E8500

    Abit IX48-GT3 Hotfoot Intel X48 DDR3
    OCZ 4GB DDR3 PC3-10666C7 1333MHz (2x2GB) Ram
    Akasa AK-P085FG-BK 850W PSU
    Seagate Barracuda 7200.11 500GB SATA-II 32MB
    Pioneer DVR-215DBK 20x DVD RW
    Zalman CNPS9700-NT nVidia Tritium CPU Cooler
    Arctic Silver 5
    8800GT GFX
    Vista Home Premium 64bit
    Antec 900 case

    My problem is that Core0 runs between 58c and 64c, 20-30c hotter that the rest of the cores which are within the 30-45c that I was expecting with this build. The CPU cooler is running at max and makes for a really loud system (which I assume is because of the Core0 and overall CPU temp being so high) I’ve tried limiting the CPU fan PWM on the Bios to 80%, but this led to the system grinding to a halt on boot-up and then stopping to respond at all.

    what would be the problem.

  2. #2
    Join Date
    Oct 2008
    Posts
    51

    Re: Unable to pull down core temps on E8500

    Some Additional E8500 Overclocking Tips

    1. To get very high CPU speeds like those noted above - YOU WILL NEED FAST RAM that can quite happily sit at ~ 960Mhz or above. A high quality DDR2 800Mhz stick MIGHT cut it, but I’d recommend going for a min of 1066MhZ RAM (PC8500), otherwise you’re going to find your overclock will be constrained to around 3.3Ghz.
    2. A New RAM technology is currently emerging called DDR3 - It offers speeds in excess of 1066MHz, but it is horrendously expensive - consider getting a motherboard (like the gigabyte Gigabyte P35C-DS3R I chose) that can handle BOTH DDR2 and DDR3 memory - socket 775 is going to be around for a while, and you might want to use DDR3 in the future.
    3. Don’t go overboard with the CPU voltage - some people are recommending as high as 1.5V, but I’ve found that past 1.3V you are mostly generating exponentially more heat for very little additional clock speed - it’s not worth it unless you’re nuts and like spending heaps of money on expensive cooling gear.

  3. #3
    Join Date
    Oct 2008
    Posts
    114

    Re: Unable to pull down core temps on E8500

    If you want near silent, then you might wish to turn down the MCP655 to "3" or lower. Therefore, you will have lower LPM/GPM and you need a free flowing block to compromise this. Moreover, the temp difference between GFX2 and MCW60 is 1C at best but double the pressure drop.

  4. #4
    Join Date
    Oct 2008
    Posts
    55

    Re: Unable to pull down core temps on E8500

    Stock cooler? That’s one of the few things I always buy with a new CPU. Those Intel leaf-blowers are just too loud for me. Have you checked to make sure that you’re actually using both cores properly? VB.NET is sometimes a bit single-core-focused, unless you work on splitting the workload into multiple threads. On the other hand, if you want to use the system for something while it’s processing, doing the work on a single core might be preferable.

    PS Good to see you posting again!

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