Overclocked Intel i5-3570k on mobo-asus P8z77-V (issue*- Instability)

Jabad96

Distinguished
Jan 25, 2013
53
2
18,535
Heyy guys, i have this issue with my gaming rig after overclocking my intel i5 3570k cpu to 4.5ghz on a motherboard which is asus P8z77-V and i have ran prime 95 for 12hours(small FFT test and blend) and it was stable, but after 2 month i have updated my nvidia geforce gtx 670 to 320.18WHQL and that caused my games to crash and i kept geting BSOD(blue screen of death) every time i run my games, but it happens after 20 to 30 mins of gameplay, and when im playing any game it freezes at one point every time then i get the BSOD.

I have tried to fixx this issue by fresh installing windows 7 64bit operating system that i have and this way it got rid of the BSOD but not the game crashes but i have noticed that it might be the instablility from over clocking. Im not really sure though, would my cpu need an increase in voltage to bring back the stablility? ohh theres one thing, i changed my pll voltage from its default which was set to 1.8v and brought it down to 1.63v when i first overclocked which was before i ran a stress test and passed for 12hours. So should i bring the pll voltage up more to increase stability aswell? PLEASE HELP ME:(((

My gaming rig specs:

MSI Nvidia gefore GTX 670 2gb oc edition
Asus P8Z77-V mobo
Kingston hyper-X 1600mhz -16gb of ram
Intel SSD drive 330 series 120gb (i installed my windows on)
WD western digital HDD 1tb (to store large files on)
corsair TX 850M power supply 850watts
corsair hydro series H55 cpu water cooler
intel core i5 3570k 3.4ghz default (running 4.5ghz)
 

Tradesman1

Legenda in Aeternum
If it was all fine and started crashing with the upgrade of the GPU driver, may be abug in the driver, have you uninstalled and gone back to the previous version. That would be my first thought....If it's the driver messing with voltages won't change anything, if the old driver does the same then you might try raising vCore just a touch + 0.010 or so