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Thread: Overclocking and unlocking AMD 550 BE

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    Overclocking and unlocking AMD 550 BE

    Right well I have a 550BE and I am lucky enough to have unlocked the other 2 cores. Now I am looking to overclock this as well. Kit list is to the side.

    Main CPU cooler is a xigmatek s1283 HDT I also have a 12cm fan beside it and the PSU has a 14cm fan extracting just above. There is currently only an 8cm fan at the front but the front of the case is perforated to improve airflow. I am thinking of adding a scythe kamabay fan in the spare 5.25 drive bays to improve flow. I may well replace the original coolermaster 12 and 8cm fans (coolermaster centurion 5 case) with scythe or noctua fans (when I get the money).

    I have tried a test overclock of 200 x 17 at 1.375v and ran prime 95 torture test. Although it ran fine for about 30 mins I noticed on speedfan the cpu temp was 61 and gigabytes easytune 6 was showing 49. Why are these 2 values so different? Which one is correct? system temp was reading about 40 for both programmes. What is the max safe temp for the processor? Is 61 fine and should I just let it run for several hours?

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    Re: Overclocking and unlocking AMD 550 BE

    Quote Originally Posted by no_numb View Post
    Right well I have a 550BE and I am lucky enough to have unlocked the other 2 cores. Now I am looking to overclock this as well. Kit list is to the side.

    Main CPU cooler is a xigmatek s1283 HDT I also have a 12cm fan beside it and the PSU has a 14cm fan extracting just above. There is currently only an 8cm fan at the front but the front of the case is perforated to improve airflow. I am thinking of adding a scythe kamabay fan in the spare 5.25 drive bays to improve flow. I may well replace the original coolermaster 12 and 8cm fans (coolermaster centurion 5 case) with scythe or noctua fans (when I get the money).

    I have tried a test overclock of 200 x 17 at 1.375v and ran prime 95 torture test. Although it ran fine for about 30 mins I noticed on speedfan the cpu temp was 61 and gigabytes easytune 6 was showing 49. Why are these 2 values so different? Which one is correct? system temp was reading about 40 for both programmes. What is the max safe temp for the processor? Is 61 fine and should I just let it run for several hours?
    The maximum operating temperature of the X2 550BE is 70C:

    http://products.amd.com/en-us/Deskto...il.aspx?id=560

    Also increasing the HT frequency also helps IIRC but I cannot remember the specific article I have read about this.


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    Re: Overclocking and unlocking AMD 550 BE

    Thanks for the info. I have been away for a while so appologies for the late reply. Anyone else have any insight into the other points?

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    Re: Overclocking and unlocking AMD 550 BE

    You probably know this already, but you have really got to take extra care to make sure you're stable, because it's possible that the extra cores have unusual defects.

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    • no_numb's system
      • Motherboard:
      • Gigabyte ma770-ud3
      • CPU:
      • AMD Phenom x6 1055t (95W)
      • Memory:
      • 4gb Kingston 1066 hyperx
      • Storage:
      • 2x40gb kingston ssds, 1tb Spinpoint f3, 320gb Samsung spinpoint f1 + 640gb seagate freeagent extreme
      • Graphics card(s):
      • Sapphire 4670 ultimate
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      • ocz stealthxtreme 400w
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      • Xigmatek Midgard
      • Operating System:
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      • Monitor(s):
      • LG 19", DGM 23" and lg 42ld490 42"

    Re: Overclocking and unlocking AMD 550 BE

    Well just a quick update if anyone is interested. I've got it at 3623 MHz x4 tested stable with prime 95 torture test @1.35v. I have not tried to go any further yet.

    Under full load (when doing the test) it never went above 51 c and the fan was spinning at 1000rpm max out of 1500rpm.

    In the future I may go above this speed as I'm sure it can go further but for now this will do. For £70 this processor has got to be my best purchase in computer terms, seriously impressed with it.

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