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Ram Voltage

Last response: in Memory
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September 20, 2010 7:31:10 AM

Hi guys, I want to ask you sth : when I built my pc a few months ago, I bought 2 sticks of DDR3 1600 RAM from Kingston for a core i5 machine, but I didn't look at the voltages when I bought them. Apparently, they were meant for AMD systems (1.7-1.9 volts powering them). Now, BIOS and CPU-Z show me they are clocked at 1333 mhz instead of 1600, and run at 1.5 V.
Does this mean they underclocked themselves in order to work at 1.5 V? And is this ok? I mean, I don't see any difference. The system works great, but I'm concerned for their future.
And another question: is it OK if I fiddle around with the timings? Now it's running 9-9-9-24. I understand that increasing the mhz won't make too much of a difference, but lowering the timings will. Is this right? And is this doable ?

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a c 163 } Memory
September 20, 2010 1:28:48 PM

Hi.

1- What mobo do u have?
2- Can u please post the link of the RAM that u have?
September 20, 2010 2:11:23 PM

So, the mobo is a gigabyte ga-p55a-ud3r

http://gigabyte.com/products/product-page.aspx?pid=3162...


And the RAM is Kingston KHX1600C9D3K2/4G

http://www.valueram.com/datasheets/KHX1600C9D3K2_4G.pdf

On the RAM's data-sheet , it says it's been "TESTED to run at ...1.7V to 1.9V ", does this mean it is the maximum it can go or that it's the recommended voltage ?

At this moment, it's running 9-9-9-24 ( I have already mentioned this, and it is what BIOS is saying) and at 1333mhz.
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a c 163 } Memory
September 20, 2010 2:22:22 PM

What voltage report the RAM?

The CL seems the correct for the RAM but the speed is the SPD auto select. Like u say the speed increase won't give u many advantages in games, maybe in benchmarks or something like that.
September 20, 2010 2:24:52 PM

@saint19 : BIOS now shows 1.5 V
I know increasing to 1600 mhz won't make any difference, but what about timings ?
If I upgrade to CL8 ?
a c 163 } Memory
September 20, 2010 2:46:53 PM

Maybe CL8 @ 1600 can give u a little more performance but u can try setting the CL to 8 with the current RAM and set the voltage to 1.6V or 1.65V.
September 20, 2010 2:49:31 PM

Why should I do that ? Can't I just leave everything relating to voltages on auto and just set the timings ?
a c 163 } Memory
September 20, 2010 2:50:53 PM

Yeah, but if u get BSoD u also will need change the voltage for a stable rig.
September 20, 2010 2:58:57 PM

K, got it ;)  I now think I got the point. They're timed at a lower clock speed(1333), but I am able to improve it if I want to. Think this is the catch.
Hope I'm not wrong :) )
a c 163 } Memory
September 20, 2010 3:19:42 PM

Yeah, u can since the RAM is rated to run at 1600.
!