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Help! Is My CPU Overclocked?! My i7 4770K!

post #1 of 10
Thread Starter 
Hey guys! So, I recently built my own rig. Recently meaning yesterday!

I received my parts:

MOBO: Asus Z87-PRO
CPU: Intel Core i7 4770K Quad Core Retail CPU
GPU: EVGA Nvidia GeForce GTX780 Superclocked ACX Cooler 3GB

My question is - Is my CPU already overclocked? I'm really worried about this actually, because according to CPU-Z, my 'Core Speed' is 4251.14 MHz, however my BIOS multiplier is stock (34)

So is there something here I'm not understanding? Also, is the temperature for my cores okay? I done a little research and found that the temps I am getting while idle are actually really low.

CPU-Z:




SpeedFan:




I did actually purchase a H100i yesterday (Had to travel for it!) as I lost my H100 mounting bracket and could not be bothered to wait days for corsair to send me a new one.

I would really appreciate a detailed answer! All Images attached! (Including my Rig)

Rig:


Edited by Lewisrowezer - 4/3/14 at 2:04pm
post #2 of 10
Thread Starter 
This is where things get a little bit more interesting (I downloaded HWiNFO)



Apparently it's 34 x 125.0 MHz rather than 34 x 100.0 (Is this even normal?)
post #3 of 10
1. Yes your CPU is overclocked already. Not that you will notice any difference between stock turbo and your 4.2 GHz overclock.
2. Your temps are okay.
3. Bus speed is OK too. Don't attempt bus speeds greater than 125 MHz for now.
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post #4 of 10
Thread Starter 
Quote:
Originally Posted by Arxontas View Post

1. Yes your CPU is overclocked already. Not that you will notice any difference between stock turbo and your 4.2 GHz overclock.
2. Your temps are okay.
3. Bus speed is OK too. Don't attempt bus speeds greater than 125 MHz for now.

Thank you very much mate, I actually realised that the Bus speed was @ 125 for some reason, so I brought that down to 100. I just overclocked to 4.5 GHz with no issues! Would you recommend trying 4.6 GHz or even 4.7 GHz or is it not worth it? Will it destroy my CPU? (I am using fresh watercooling!) Temps are the same too!

One more thing, do I need to overclock anything else in order for the overclock to be effective or do I only need to change the multiplier for my core clocks?

Thanks Again!
post #5 of 10
You need to do a few things while overclocking

most importantly; stability test

and also manually set important voltages

read this: http://www.overclock.net/t/1411077/haswell-overclocking-guide-with-statistics
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post #6 of 10
This is not a good way to overclock IMO. You are overclocked by your bus speed instead of your multiplier. You have probably also overclocked your uncore/PCI-E it appears and it could affect other things than the CPU, like your PCI-E. That is probably not very stable. I would get the uncore frequency to 100 MHz and overclock using multipliers.
Edited by GeneO - 4/3/14 at 3:52pm
post #7 of 10
Quote:
Originally Posted by GeneO View Post

This is not a good way to overclock IMO. You are overclocked by your bus speed instead of your multiplier. You have also overclocked your uncore it appears and it could affect other things than the CPU, like your PCI-E. That is probably not very stable. I would get the uncore frequency to 100 MHz and overclock using multipliers.

You can use 125mhz on lga1150 and 2011, there is a bclk strap for it, but most use 100 for Haswell. I think OP is using that now anyway~
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post #8 of 10
Quote:
Originally Posted by Cyro999 View Post

You can use 125mhz on lga1150 and 2011, there is a bclk strap for it, but most use 100 for Haswell. I think OP is using that now anyway~

If he is using a strap voltage. You can also just set the bus speed to 125% I believe, which would not be good at all.

I find it harder to believe that the strap settings were unwittingly changed rather than the bus frequency.

-
Edited by GeneO - 4/3/14 at 4:07pm
post #9 of 10
Quote:
Originally Posted by GeneO View Post

If he is using a strap voltage. You can also just set the bus speed to 125% I believe, which would not be good at all.

I find it harder to believe that the strap settings were unwittingly changed rather than the bus frequency.

-

My mobo and i think most others won't let you do that

If you set 120mhz for example it'll automatically run at 96mhz*1.25 (5/4)

125 and it'll run at 100mhz (normal) *1.25 (5/4)
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post #10 of 10
Ah but it will on Asus I think. But 125 appears Ok an Asus, at least on a Hero board. I just checked this behavior:

If I leave my strap on Auto, then increase the BCLK frequency to 124, then DMI will get set to 124. As soon as I hit 125, the DMI freq drops to 100. So the strap automatically goes to 125. So if in auto, 125 is pretty safe, 101-124 not so.

If however, I set my strap to manual and to 100 MHz, and I set the BCLK freq to 125 MHz, then the DMI gets 125 MHz..

So to be harmful at 125 MHZ, would have to manually set a strap frequency and increase the BCLK frequency.

I expect strap was auto and the BCLK was inadvertently set to 125, but is OK I think.

Still best to use multipliers if you aren't pushing it and if this is your first overclock

Cheers
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