I want to overclock a non K processor..

Celil · Jan 24, 2014

I have a intel i5 3570 (3.4 ghz- 3.8 ghz at turbo) non-k processor, and I have read many articles on google, that it can be overclocked to 4.2 ghz. But the problem is here, when I enter my bios setup, I can only set the multiplier to 38, and when I restart my comp. I open Cpu-Z which says 3.8 ghz. I really want to push my processor..

thequn · Jan 24, 2014

you have to do it the old way from the bus/blck not from the core.

ps here is a post from last year to help you get started. http://www.tomshardware.com/forum/281656-29-help-3570

Celil · Jan 24, 2014

thequn :

How do I do it? im new at overclocking, but not a noob. Just give me some advice?

thequn · Jan 24, 2014

yeah i updated my post read that. Its not someone you can easy explain you have to know it first.

thequn · Jan 24, 2014

If you have some time reading the how to overclock a i7 920 cpu will help also.

zink1701 · Jan 24, 2014

You have to adjust the BLCK frequency is usually set to 100MHz you need to adjust that. What motherboard are you using?

Wisecracker · Jan 24, 2014

You should probably sell your CPU and by a 'K' -- there is little utility (and a high down-side) in clocking a locked chip these days.

Celil · Jan 24, 2014

zink1701 :

Iam using this mb: http://www.msi.com/product/mb/B75MA-E33.html

It should be great at overclocking.

What bus speed should I set it at? I don't want to go over 4.2, I also think that's the limit.

J_E_D_70 · Jan 24, 2014

Agree you should have bought a K. But... you should get some OC from your locked with Z75/Z77. Don't mess with the BCLK.

Read this:
http://techreport.com/review/20188/intel-sandy-bridge-core-processors/3

and this

http://techreport.com/forums/viewtopic.php?f=4&t=87608

You would set the mutiplier to 38 and leave SpeedStep and Turbo on.

Download OCCT and check the clockspeed - it should be 1.6GHz. Then run a CPU stress test - it should clock up to 4.0GHZ across all four cores. If does then it's working at the limit of what the chipset and CPU allow - 4.0 on four cores, 4.1 or two or three cores, and 4.2 on a single core.

zink1701 · Jan 24, 2014

I dont think you will get the CPU frequency that high tbh you can set the BLCK to 103-104 some CPU's you will get up to 107 (cant remember which). Also (quoted from another post) "overclocking the Bclk speed also effects the PCI and PCIe speeds since the clock generator is on the chip. Devices riding on the PCI bus and PCIe lanes do not like to operate beyond the spec. The most notable devices are disk controllers in the form of BSODs and data corruption". So just be aware messing with it can cause some serious system instability.

Celil · Jan 24, 2014

J_E_D_70 :

So I should set it at 38 multiplier, and leave everything else on auto/enabled, as default.. And thats it? I will test it on OCCT in 10 minutes, I will post the results..

J_E_D_70 · Jan 24, 2014

Yep - and meant to ask what cooling you have - if it's the stock cooler this entire thing is a bad idea.

thequn · Jan 24, 2014

Nice post Jed i had forgotten about that i went old school in my logic. Good call.

Celil · Jan 24, 2014

J_E_D_70 :

It is stock, but still the temps are good, for stock.

Celil · Jan 24, 2014

J_E_D_70 :

Okay, nothing happened.. still samme ghz with maximum 3.8 ghz, do you think it is my cpu or motherboard? or just me doing something completely wrong?

Wisecracker · Jan 25, 2014

You're not doing anything wrong ... it's just an exercise in futility with little to gain in performance against a greater potential for unwanted system instability.

J_E_D_70 · Jan 27, 2014

Bah - it's your B75 chipset:
http://www.cpu-world.com/news_2012/2012041101_Intel_Launches_7-Series_Chipsets.html

Sorry I didn't look closely at your link

Stuck with what you have.

I want to overclock a non K processor..

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