System freeze randomly after adding new RAM

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Good day,

Originally, I have 2 sticks of 2GB DDR3 RAM (I believe they are 1333mhz) on my computer. Recently I have added 2 sticks of 4GB DDR3 RAM(I believe they are 1333mhz) to my computer, making a total of 12GB available for use.

However, my system starts to freeze randomly on me(screen is not refreshing, mouse/keyboard not active, but I can still hear the hard disks and fans running inside and the LED that indicates the PC is on is lit up as normal). It has freezed when I:
-Only have chrome open(even with 2 tabs)
-Doing heavy after effects/light MS office work
-Staying at the desktop doing nothing, with no applications launched

As you can see its just random.

Some more basic specs:
Mobo: Gigabyte X58A-UD3R rev2
CPU: i7 950(No overclock)
OS: Win7 Home Premium x64 SP1, installed all important updates months ago before I add new ram sticks. By the way, no new drivers/software is installed after adding new ram.

I heard that it should be something about SPD or voltage problem? Could someone please throw me some pointers how can I do sort that out? For your information, my power supply is 600V.

May I also ask you to click here to take a look at a few CPU-Z and BIOS screens that I think might give a clue to the problem? Additional specs information is available there too.

Your help is very much appreciated :)
 
Solution
I had the same motherboard. Do you know if the old and new RAM sticks have the same voltage requirements? What are the makes/models of each kit? If you remove the original RAM and just use the new RAM, does the PC lock up?

In Windows 7, go to the 'Search' (used to be 'Run' in XP) box and type 'Windows memory'. Click on the 'Windows Memory Diagnostic' link. Schedule a memory check and restart as prompted. Let us know the outcome.

 

iExchange

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Thank you very much for your reply!
I have tried the memory diag and it says that its normal.
System runs no problem if i use the old ram only or the new ram only.
I lost my ram package and im not sure about the exact model. They are all from kingston though. They are of DIMM type and 1333mhz.
Im not so sure about the voltage stuff.

Thanks again, lets work this out together ;)


 


I'm going to guess you might have a 1.65V requirement on one kit and a 1.5V requirement on the other newer kit. Often, the voltage requirements are expressed on a sticker on the RAM stick (may have to remove heat sink to see this). This could be problematic.

Try this just for the heck of it, attempt the triple channel memory config with the two different memory sizes... Put the two 4GB sticks in channels DDR3_1 and DDR3_3. Put the two 2 GB sticks in DDR3_2 and DDR3_5. Does that work?

If that doesn't work, you're going to be running dual-channel at best with different memory sizes across memory channels with 4 sticks of RAM. I would suggest you run with the 8 GB kit (2x4GB) only in slots DDR3_1 and DDR3_3.
 
Solution

Terrence_3

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I had the same problem on my asus board, it was dual channel so I just evened the channels off by putting a 4gb and 2gb in each channel. well that is asuming every other slot is the same channel