Overcloking & Pc problems

[marouf yasser]

Hello

My name is Yasser i'm 26 years old from Algeria (north africa)

My PC configuration :

- MSI Z77 GD 65 Millitary Class 3 motherboard

- PCU Intel i7-3770 Not - K serie

- 1To HDD WD

- 128 Go Intel SSD

- 16 G of RAM Kingstone Hyper X (4x4Go) 2133 Mhz

- Cooler Master X6 CPU cooling system

- Cooler Master HAF 932 Case

- Cooler Master 725watt Extrem 2 Power supply

- MSI ATI R7970 Lightning series graphic card

Q1- i overclocked the CPU to 4.2 Ghz i can go to 4.3Ghz, for the OCing the CPU i didn't change te BCLK frequency it's fixed at 100Mhz as a default value my multiplier was not locked, whene i search a litle in the Web & forums i found that the i7-3770 Non-K had a multiplier that can go to 4.3Ghz with the Z77 - GD65 Millitary Class 3 - first i pultiplier it x39 i tested it with CPU-Z & the result was just WOOOW i find that my CPU was at 3.9Ghz so i continued to level it up to 4.2 Ghz with Auto Core Voltage , in the BIOS it's say Current CPU frequecy 4.2Ghz but whene i test it with CPU-Z it show that i'm just at 4.1 Ghz it can't go more then this ?? if you can tell me why please

Q2- i did the 3Dmarck11 test in performance mode i scored with 4.2Ghz & 1070Mhz GPU & 2133 MHZ XMP profil active P10325 points & X3321 on Extrem mode - then whene i reduced the CPU to 4.1 Ghz & 1070Mhz GPU & 2133 MHZ XMP profil active i scored P10338 Points & X3351 on extrem Mode, so why whene i reduced the CPU the score get higher ?? & tell me please if why score is Good or Bad ?? Q3- whene i play call of duty or need for speed Most Wanted 2012, medal of honor in Ultra Mode with resolution of 1920x1080p with a CPU of 4.1Ghz GPU 1070Mhz & XMP profil at 2133 Mhz it's so smooth & i have FPS between 45 to 70 Frame/s & with Flight Simulator X it's reach between 85 to 150 FPS but whene i play Battlfield 3 or far Cry 3 it lag every 5 second & it's disturbing me, like i'm loosing FPS every 5 second so can you tell me why & how can i solve this problem please ??

Q3- whene i play call of duty or need for speed Most Wanted 2012, medal of honor in Ultra Mode with resolution of 1920x1080p with a CPU of 4.1Ghz GPU 1070Mhz & XMP profil at 2133 Mhz it's so smooth & i have FPS between 45 to 70 Frame/s & with Flight Simulator X it's reach between 85 to 150 FPS but whene i play Battlfield 3 or far Cry 3 it lag every 5 second & it's disturbing me, like i'm loosing FPS every 5 second so can you tell me why & how can i solve this problem please ??

Q4- i would like to overclock my GPU to 1110 Mhz & to 6004 Mhz of memory frequecy just like the GTX 680 Lightning performance but i'm litle warried, first i don't know if my power supply will give me enaugh power to do this overclocking & i don't know how can i do that cause i don't know how to use after burner (how much voltage core & stuff like that....), so can you help me please ??

tkx & i'm realy waiting for your repply ;) have a great night & keep me updated

Kind Regards Yasser