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Overclocking core i5 3450

By ViperCDX
May 28, 2013
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  1. Hi,can I overclock i5 3450 from 3.1 ghz to at least 3.2 ghz with using only the stock cpu cooler?
    I am using gigabyte b75d3h
    I know the following points:-
    1.3450 is "non-K" hence cannot be efficiently OCed
    2.b75 is not suitable for OCing
    3.only 0.1ghz increase wont bring any major improvement :D

    I am doing doing it only for fun!
    Also if I successfully OC to 3.2 ghz then will it perform like a 3470?

    Thanks in advance
     
  2. GhostRyder

    GhostRyder TS Evangelist Posts: 2,263   +541

    Yes, that much of an overclock should not bring any major heat problems.

    It's going to be a challenge without an unlocked chip, but you should be able to do it with. Happy overclocking :d

    With the specs I've read on the two, besides the boost function it should perform on the same level.
     
  3. ViperCDX

    ViperCDX TS Rookie Topic Starter Posts: 84

    @GhostRyder- which cpu stress test should I use?
     
  4. GhostRyder

    GhostRyder TS Evangelist Posts: 2,263   +541

    Prime95 is definitely one of the best (if not the) option. Do a full test and I would try and get at least 1 hour of stability to count it as stable (that's just my opinion).

    I'm on my phone but this should be the correct Link.

    http://files.extremeoverclocking.com/file.php?f=205

    Hope this helps!
     
  5. cliffordcooley

    cliffordcooley TechSpot Paladin Posts: 6,119   +1,523

    I'm fairly certain you could get a 0.4GHz increase. An increase of 0.1GHz would hardly be worth trying.
     
  6. ViperCDX

    ViperCDX TS Rookie Topic Starter Posts: 84

    Thanks
    how do I know if my cpu is unstable during that 1 hour run?
     
  7. cliffordcooley

    cliffordcooley TechSpot Paladin Posts: 6,119   +1,523

    Blue screens and machine reboots would be an indication. I doubt you will encounter unstable overclocks with only a couple hundred MHz's.
     
  8. GhostRyder

    GhostRyder TS Evangelist Posts: 2,263   +541

    It will do one of 2 things.

    1: there will be 4 little windows open, one or possibly all will return something like ERROR: and say a message. Normally means you need a tad more voltage.

    2: Worst case, computer will totally freeze (but that would mean a severely unstable overclock.
     
  9. ViperCDX

    ViperCDX TS Rookie Topic Starter Posts: 84

    @cliffordcooley- yes I know that,but I am not OCing for performance improvement,just doing it for fun
    0.1 ghz increase would not harm my pc I guess!
     
  10. Blkfx1

    Blkfx1 TS Addict Posts: 890   +171

    Overclocking for fun? If you're not doing it to net any performance then it isn't worth it.Of course, 0.1 increase will not do any significant damage. But, if it's not for more performance why even risk it?
     
  11. ViperCDX

    ViperCDX TS Rookie Topic Starter Posts: 84

    I am making sure I can do this before OCing it more more aggresively using an after market cooler
    Also bcoz my friend has i5 3470 which has 3.2 ghz clock and he constantly pinches me about his clock speed being higher than mine!
     
    cliffordcooley likes this.
     
  12. cliffordcooley

    cliffordcooley TechSpot Paladin Posts: 6,119   +1,523

    LMAO
    The "Mines bigger than yours" syndrome.

    Seriously though, I can understand you playing it safe initially.
     
  13. ViperCDX

    ViperCDX TS Rookie Topic Starter Posts: 84

  14. ViperCDX

    ViperCDX TS Rookie Topic Starter Posts: 84

    I could not overclock it :(


    this is a screenshot of youtube vid ,the only option you can select is "advanced cpu core features" and once you enter it you cannot change the "cpu clock ratio" ! 1.png 2.png
     
  15. JC713

    JC713 TS Evangelist Posts: 7,027   +913

    The 3470 is only a .1GHz increase, so yes it will perform equally. Keep in mind though, the 3470 will be more "stable" than a OCed 3450, even if it is only .1GHz. I think you should have fun with the overclock the reset the defaults in the BIOS. Then turn off Turbo boost. It will make the 3450's clock speeds go from 3.1GHz to 3.5 GHz.
     
  16. GhostRyder

    GhostRyder TS Evangelist Posts: 2,263   +541

    Ah you can't change the frequency, you are correct. However, there is one other way, you can change the ratio and adjust the speed. Beat in mind though when playing with the ratios, that also messes with the ram, so you need to also make sure your ram is stable after messing with that (though a minor change should not affect anything).
     
  17. ViperCDX

    ViperCDX TS Rookie Topic Starter Posts: 84

    @jc713- how to reset the default?
    I have enabled turbo boost (it was auto) now CPU-Z shows 3292 mhz,thats 3.2 ghz,right?
     
  18. ViperCDX

    ViperCDX TS Rookie Topic Starter Posts: 84

    @ghostryder- the "cpu clock ratio" cannot be altered !
     
  19. cliffordcooley

    cliffordcooley TechSpot Paladin Posts: 6,119   +1,523

    You should be able to increase the base clock frequency?
     
  20. ViperCDX

    ViperCDX TS Rookie Topic Starter Posts: 84

    @cliffordcooley- you mean cpu base clock=100 mhz given in the 1st screenshot ?
    nothing happens when I click enter !
     
  21. cliffordcooley

    cliffordcooley TechSpot Paladin Posts: 6,119   +1,523

  22. GhostRyder

    GhostRyder TS Evangelist Posts: 2,263   +541

    In order:

    Yes, if your reading 3295 megahertz that 3.295Ghz

    When changing ratios, you normally on many motherboards can't just enter a number at least that I've tried. Try highlighting the number in the bios and hitting + on the keyboard to increase or minus to decrease it. Looking at the screenshot, the ratio to me does not look locked and normally that isn't locked even on non-k models.
     
  23. ViperCDX

    ViperCDX TS Rookie Topic Starter Posts: 84

    @ghostryder- hitting the + key has no effect ,I have tried it !
    btw,if u find any article about overclocking on GA-B75-D3H ,please let me know! ;)
     
  24. GhostRyder

    GhostRyder TS Evangelist Posts: 2,263   +541

    Yea my bad, I misread what motherboard you had so by the sound of things you can't change the frequency or ratios.

    However, I was reading a quick article
    http://www.tomshardware.com/forum/282295-29-overclock-3450
    This may help as it has some details on gigabyte boards and the 3450 overclocking. The only thing I was able to see that they could change was the boost clock.

    I hope this helps!
     
  25. JC713

    JC713 TS Evangelist Posts: 7,027   +913

    Yes that is 3.2 GHz. You just have to reset the BIOS to default. Turn of Turbo boost and it will make the CPU perform at 3.5GHz constantly.
     


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