How long will an OC'd CPU last?

I have an i7-920 at 4.2 GHz.

I mainly operate FSX, I hardly ever play any other games, and I hardly play it.

How much of the lifespan of the CPU do you lose by OC'ing?

I don't know if its worth OC'ing to 4.2GHz for 1 game that I rarely play if it greatly reduces the life of my CPU.

I was hoping to get 2-3 years from the CPU, I know that's possible at stock settings.

Is it possible with it overclocked?

What life expectancy might I expect?

Thank you, Aaron
10 answers Last reply
More about long last
  1. It will definitely work WELL for at least 3 years as long as your core temperatures and voltages are within the maximum values, 67.9C and 1.375V in your case.
  2. http://processorfinder.intel.com/details.aspx?sSpec=SLBEJ

    As long as you keep it in the rated voltage range, no higher than 1.375v in your case, then the CPU should last a good 5+ years assuming it is kept cool and there are no power surges from a cheap power supply.
  3. Okay, I've found my sweet spot.

    I've dropped down to 1.275 on the V core
    and 1.260 on the QPI/VTT.

    I disabled HT and in an OCCT full load test I hit 69C, thats at 100% load, I'll never see that in normal or gaming operation.

    The Real Temp app said I hit a max of 72C during the test.
  4. caaront said:
    Okay, I've found my sweet spot.

    I've dropped down to 1.275 on the V core
    and 1.260 on the QPI/VTT.

    I disabled HT and in an OCCT full load test I hit 69C, thats at 100% load, I'll never see that in normal or gaming operation.

    The Real Temp app said I hit a max of 72C during the test.


    That's due to the old Real Temp using a Tjmax of 100C instead of 98C.

    Download the latest version of Real Temp will fix this.
  5. Thank you.
  6. Also use prime95, it stress tests much more harder, you will see an increase in temps as well as any errors with your overclock
  7. Boxa786 said:
    Also use prime95, it stress tests much more harder, you will see an increase in temps as well as any errors with your overclock

    +1

    Prime95 finds out errors much faster than OCCT and any other programs out there!

    In my experience, OCCT took 8 hours to find the errors that can be found by prime95 in 40 minutes.

    Furthermore, In place Large FFTs test of Prime95 is the most trustful torture test.
  8. Want to stress your computer, download y-cruncher and run that for 10 minutes, watch your temps though.
  9. Quote:
    Want to stress your computer
    , download y-cruncher and run that for 10 minutes, watch your temps though.
    Holy crap, I just ran that and my PC freaked out on me.
  10. LinX will stress test much harder than OCCT or Prime95, it's free as well! Be sure to use the ALL button to test ALL AVAILABLE RAM, do not just set the ram at whatever you want, set it BELOW the Max Available RAM.

    If your temps get above 65c then it's time you start lowering your OC &/or voltage mate, or go out and get a better cooler!!! SERIOUSLY!
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