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OC affected by new PSU and RAM help please

274 views 8 replies 3 participants last post by  Sidistic 
#1 ·
Hey everyone, I've just received my new PSU (Corsair RM 850 gold plus), Ram (Hyper X fury 16gb) and GPU (MSI GTX 970) .I was really happy, got everything setup, I'm using the MSI P67A-G45 Mother board btw .Anyway got everything setup, launched the computer, noticed my previous overclock was reset. I reinstalled windows too. But i'm having a problem. I'm unable to get my previous overclock, when i press save and exit in the bios, the computer just cuts out as if there was a power shortage then starts again and windows is unable to start. Had the BSoD when i tried to stress test it. Also noticed I have to scan the RAM in the bios before windows will start again, other wise it just tries to start in a constant loop and crashes/restarts when I see the windows logo.
I also noticed that CPU Z doesn't show my clock at 4500Ghz like it used to be but at 4498GHZ

Here's a few screen shot of my bios with the overclock (I've set it back to normal for now):

http://s275.photobucket.com/user/cu... Uploads/20141024_084614_zpsme7josan.jpg.html
http://s275.photobucket.com/user/cu...oads/20141024_084546_HDR_zpstsvwi1jl.jpg.html
http://s275.photobucket.com/user/cu... Uploads/20141024_084524_zps9szqtyb7.jpg.html
http://s275.photobucket.com/user/cu...oads/20141024_084513_HDR_zpshujtwdx4.jpg.html

Since the ram are different from my previous ones, I suppose they are affecting the overclock. Has anyone got any idea on what i should do? I've had a stable 4,5Ghz OC for 3 years now.
Cheers
 
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#3 ·
So my previous rsm were 8GB Mushkin Enhanced Silverline #996770 (2x4GB) 1333 (PC3-10666) 240-Pin DDR3 SDRAM CAS 9-9-9-24 1.5V

I also noticed whrn oc the bus is at 99.8 i stesd of 100mhz. And windows often get corrupted . I have to reinstall windows as it's either in a boot loop or won't start at all now.
Just tested the ram individually with memtest86+ and everything is fine.
 
#4 ·
Quote:
Originally Posted by Sidistic View Post

So my previous rsm were 8GB Mushkin Enhanced Silverline #996770 (2x4GB) 1333 (PC3-10666) 240-Pin DDR3 SDRAM CAS 9-9-9-24 1.5V

I also noticed whrn oc the bus is at 99.8 i stesd of 100mhz. And windows often get corrupted . I have to reinstall windows as it's either in a boot loop or won't start at all now.
Just tested the ram individually with memtest86+ and everything is fine.
That's the catch.Your previous OC profile was for a set of 1333 mhz RAM modules.Now if you have 1600 mHz memory modules, your computer adjusted the BUS according to the RAM speed.BUS speed affects major components in your system and also it is affected by them.So, when you changed the RAM, you changed also the BUS and in the end the Clock of the CPU.If you wanna get 4.5 Ghz, you need to get more Voltage in order to get a stable OC.
 
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