Overclocking AMD Phenom II 955 x4 BE

Hello, I need some help overclocking my AMD Phenom II 955 x4 BE.
Cooling is no problem, as I got the Noctua NH D-14 cooler.
I don't know how to overclock the CPU, however, in the manual it said I could configure this in BIOS, so I went to have a look.

In BIOS there is a feature to change the CPU clock ratio, im also adding a picture of this.
If I click on this feature, it tells me that I can change the clock ratio up to: x35. I'd believe this equals the same as 3.5 ghz, but I dont know. So, how do I safely overclock my CPU?


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  1. Dont know why the picture didnt appear, but go into that adress that I posted above to see the picture, obviously.
  2. Multiplier overclock is easy, but no you can't do x35 :P

    It's your reference clock x multiplier. So if you leave your reference clock at 200, you would need a 17.5 multiplier to get 3.5GHZ.

    Here is AMD's official guide for OC on that chip. Handy to print out as a reference while you tool around in your BIOS.

  3. THanks for the responses. I've been reading pretty many guides now and figured out that my first post was very noobish. I appreciate any other links and support.
  4. Hi.

    Use the 4ryan6 guide, if you need more help or have specific question that has not been solve with the 4ryan6's guide, come back here and let me know.

    And please, list all the components of your rig.
  5. I would go into BIOS, change your CPU multiplier to 17x, then save and exit. This will bring you from 3.2GHz up to 3.4GHz. If it runs with no problems for a few days then bump it up to 17.5x wait a few more days, and then 18x. If you machine starts having problems then go into BIOS and dial it back by 0.5x

    Be sure to keep an eye on your CPU temperature. I know you have a good cooler, but it doesn't hurt to check.
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