I know I am supper late answering this forum, But I came across this topic while browsing..
So I have over clocked my i7-2600 non k CPU to 4.326 MHz!!!!!
You will be even surprised if you hear what cooler I used... its a $9.99 buck air cooler bought from Micro Center
Here is my Specs
CPU:- i7-2600 non K
CPU coller:- Purex DLX-CW919 LGA1150/1155/1156 CPU Cooler $9.99 :lol:
Mother Board:- Asus P8Z77-V LK 1155 Chip Set (Missing the i/o shield
😀 )
Ram:- 4*4 16 GB DDR3... low profile; DDR= Double Data Rate. 800MHz in CPU-z is the same as DDR3-1600
SSD:- Two 128 GBSamsung 840 pro
GPU:- PNY GTX 460 1GB XLR8 (Overclocked Core Clock to 830 MHz from 765 MHz, Core Voltage 1025 mV same as before, Shadder Clock to 1660 MHz from 1530 MHz, Memory Clock 1850 MHz same as before)
PSU:- Corsair CX Series 600 Watt ATX/EPS Modular 80 PLUS Bronze
Case:- Corsair Carbide Series 200R Compact ATX Case CC-9011023-WW
Fans:- Intake:- Front, Bottom, Side Panel (blowing on to the GPU); Exhaust:- Back, 2 on top... so 6 in total, the 4 fans are generic Foxconn fans and the other 2 came with case corsair fan...
Display:- HP ZR2740w Resulation 2560*1440 60Hz... one heck of a monitor
SO I was trying to squeeze out every bit of performance from the aging CPU and GPU....
I used the Asus AI Suite 2 built in software to overclock the CPU (one click..that's it)
MSI Afterburner to overclock the GPU
CPU Temp :- Max stress test 70 C Idle 26 C Gaming 45-50 C
GPU Temp :- Max stress test 74 C Idle 43 C Gaming 50-55 C
I have to say I am very pleasantly surprised to see the results... No crashes or artifacts so far

May be because of the airflow from multiple fans that I have in my Case; I am gaining this overclock results...if that's true.. I will add 2 more fans..
😀
So there u have it... u can overclock non-k i7-2600 processor to 4.3Mhz + speed!