Freezing after i UPGRADED my PROCESSOR

[Joshane]

After I upgrade my processor(3.30 gigahertz Intel Core i3-2120) into (Intel Core i5-2400) my computer started experiencing freezes to be specific in "GAMES" (GTA V) before i wasn't experiencing those freeze. Before it run in my computer smoothly with my GPU until i upgraded it, then after having those problems i tried putting back my old processor and the problem of freezing are still there??
WHAT IS WRONG???
HOW WILL I FIX THIS???
WHAT TO DO???

Specs:
Board: PEGATRON PEGATRON PEGATRON
Serial Number: 108422810000455
Bus Clock: 400 megahertz
BIOS: American Megatrends Inc. 0207 12/03/2010
Windows:Windows 7 Ultimate (x64) Service Pack 1 (build 7601)
Current Processor(but still experience those freeze):3.30 gigahertz Intel Core i3-2120
Hard Drive:Hitachi HDT721010SLA360 [Hard drive] (1000.20 GB)
Ram: 8GB
GPU&Monitor: NVIDIA GeForce GTX 750 Ti [Display adapter]
G276HL [Monitor]

 

[madmatt30]

Download cpu-z.
http://www.cpuid.com/softwares/cpu-z.html

Post a screen grab of the motherboard tab.

You can use
http://

for this.

 

[ahnilated]

Check your processor temperatures during load.

 

[boosted1g]

Did you completely remove the old paste and apply new paste?

 

[Joshane]

i dont know how to post a pic sorry im new here and this is my first post :-(

 

[Joshane]

Check your processor temperatures during load.

47C thats normal right???

 

[Joshane]

Download cpu-z.
http://www.cpuid.com/softwares/cpu-z.html

Post a screen grab of the motherboard tab.

You can use
http://

for this.

i dont know how to post the pic i already have a screenshot on it but i dont know how to post it here sorry im new teaching would be great thanks

 

[Joshane]

Did you completely remove the old paste and apply new paste?

yes i did complete remove the paste and apply new one

 

[madmatt30]

Goto
WWW.postimage.org
upload the pic to the website.

Copy & paste the resulting webpage link into a reply here (just right click the address bar, select copy)

Open a reply here, right click the empty box & select paste

 

[Joshane]

Goto
WWW.postimage.org
upload the pic to the website.

Copy & paste the resulting webpage link into a reply here (just right click the address bar, select copy)

Open a reply here, right click the empty box & select paste

here sir thank you

 

[Joshane]

http://valid.x86.fr/um7hyr

 

[madmatt30]

^ good pic mate , but wanted the main board tab !

;-)

 

[Joshane]

^ good pic mate , but wanted the main board tab !

;-)

 

[madmatt30]

^ saw it on your validcard link mate.
What I've also seen is mismatched ram with fairly tight timings (likely picked up from the 1600mhz stick)

This could likely be the issue - out of the house at the moment, will have a proper look on my return.

Did you do a CMOS reset on the board??

 

[Joshane]

Here Guys the CPU and GPU at the moment but whenever i play GTA V it freezes but in NBA2k15 its still smooth

 

[Joshane]

^ saw it on your validcard link mate.
What I've also seen is mismatched ram with fairly tight timings (likely picked up from the 1600mhz stick)

This could likely be the issue - out of the house at the moment, will have a proper look on my return.

Did you do a CMOS reset on the board??

okay thank you mate i hope this issue will be fixed 🙁
i havent mate and please also include why is it also happening in my core i5 processor thanks..