Upgraded RAM, CPU Overclock issue

[Anu Chohan]

I just bought the corsair vengeance pro gold 2400mhz 16gb ram

• Density: 16GB (2x8GB)
   
• Speed: 2400MHz
   
• Tested Latency: 11-13-13-31
   
• Voltage: 1.65V
• Format: DIMM
   
• Pin Out: 240 Pin
   
• Intel XMP 1.3

Before I upgraded my ram, I had 8gb 1866mhz ram. I was easily able to overclock my cpu to 4.2-4.4ghz without any crashes. I also have aftermarket CPU Heatsink which is keeping the temperatures low. 

Now when I change the cpu base clock from 3.8 to 4.2, I get crashes in the game with the new RAM. 

Any advices on how to get my cpu stable at 4.2-4.4ghz 

CPU: i5 3570K 
MOBO: MSI Z77 GD55 
GPU: 2 X 670 SLI

[Deaco]

try under clocking your ram, it adds stability. i do this when i use kits that weren't binned together.

[Anu Chohan]

Just now, JascoByte said:

try under clocking your ram, it adds stability. i do this when i use kits that weren't binned together.

Thanks for the reply. But I removed the older kits, this is a fresh new set of two sticks of 8gb ram with total of 16gb RAM in the system now.

 

Wondering if 2400mhz is limiting my overclock capabilities on the CPU.

[Deaco]

Just now, Anu Chohan said:

Thanks for the reply. But I removed the older kits, this is a fresh new set of two sticks of 8gb ram with total of 16gb RAM in the system now.

 

Wondering if 2400mhz is limiting my overclock capabilities on the CPU.

yes i meant underclock just the 16gb kit to increase stability.

[Anu Chohan]

53 minutes ago, JascoByte said:

yes i meant underclock just the 16gb kit to increase stability.

G.SKILL RipjawsX F3-2133C11D-16GXL 16GB 2X8GB DDR3-2133 CL11 240PIN 1.5V Dual Channel Memory Kit Price: $99.99 CAD Select all        So right now I just have this newly bought ram installed on computer. XMP is enabled.  2 sticks of 8gb corsair are installed. I removed the older one. I found out that if clock the ram at 2133mhz, I am able to overclock my cpu to 4.3ghz(4.8ghz with turbo boost) without any issues.  Do you think I should have gone for this ram ? Its at 1.5v and 2133mhz. The one I have is running at 1.65V. Any disadvantage of running ram at 1.65v compared to 1.5V?

[Deaco]

2 hours ago, Anu Chohan said:

So right now I just have this newly bought ram installed on computer. XMP is enabled. 

2 sticks of 8gb corsair are installed. I removed the older one. I found out that if clock the ram at 2133mhz, I am able to overclock my cpu to 4.3ghz(4.8ghz with turbo boost) without any issues. 

Do you think I should have gone for this ram ? Its at 1.5v and 2133mhz. The one I have is running at 1.65V. Any disadvantage of running ram at 1.65v compared to 1.5V?

if it's running with no instabilities you're fine. but i'm not sure about voltage though. try and run it as close to voltage specifications as possible.

[Anu Chohan]

5 minutes ago, JascoByte said:

if it's running with no instabilities you're fine. but i'm not sure about voltage though. try and run it as close to specifications as possible.

so I am underclocking ram from 2400mhz to 2100mhz. But the timings remain the same 11-13-13-31. Do I need to change the timings if I want to run the ram at slower frequency? I looked up online and some people were like those timings are not good.

 

I was just able to choose 2133mhz in dram frequency option in motherboard while having xmp enabled. Its operating at 1.65V only.

 

What do you suggest?

 

Should I try the following timing: 11-11-11-28-1T?

[Anu Chohan]

Just now, Anu Chohan said: