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Games crashe w/ BSOD after installing +8gb RAM. PLZ HELP

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September 20, 2011 11:59:19 PM

I just bought a new 750w PSU, GTX 570, and 8gb of RAM and installed them all today. I've never crashed once before i did this upgrade today, and I played all the same games. I've only notice this has happened while I was Bad Company 2 because it was the 1st game I've played, But it did happened 3 times so something has to be wrong... :( 

I will be playing bad company 2 and everything is perfect until about 15 minutes or so the game will just crash and go directly to BSOD. It goes by pretty quick so i dont have enough time to read it. The game also crashed w/ BSOD when i just tried to exit it normally after playing for about 10 minutes. I havent experienced any other crashed yet. Only in-game.

PC specs BEFORE upgrade:
i5-750
GA-p55m-UD2 LGA1156 mobo
gtx260
550W Fatal1ty PSU
G.SKILL Ripjaws Series 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model F3-12800CL7D-4GBRH

PC specs AFTER upgrade:
i5-750
same mobo
gtx570
750W corsair PSU
G.SKILL Ripjaws Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model F3-12800CL9D-8GBRL which makes a total of 12gb of ram

RAM DIFFERENCES:
I'm thinking the 2 types of ram aren't working very well together. IDK much about ram but I noticed they have a few differences. The ram i just bought&installed is 1.5V and 9-9-9-24-2N timing while the RAM I previously had was 7-7-7-24 and 1.6V. Could this be the problem? If it is then I would I just take out the 2 old sticks and just keep the 8GB?

I just read about memtest86, I guess ill give this a try if no one knows the answer.

Thanks!
a b } Memory
September 21, 2011 12:26:32 AM


Yes, it is very likely due to different ram timings.

When it comes to mixing ram, you need to change the settings to match the lowest common denominator, which in your case would be the 9-9-9-24 timings of the new ram and the 1.6V or your old set.
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September 21, 2011 1:11:50 AM

I took out the old 4gb and just left in the 8gb... I haven't had a BSOD or crash yet. :) 

Now is there any way to not waste this extra 4gb of ram?
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a b } Memory
September 21, 2011 2:55:55 AM

Give the other RAM to a friend who can use it... Mixing of RAM is never recommend for the exact reason your experienced firsthand.
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September 21, 2011 2:31:11 PM

Sold the 4 gb ram, and buy your self a new ram that match the timing wit the one that installed on your PC. preferably, the same timing, same model. so you don't have any of the BSOD again.
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a b } Memory
September 21, 2011 10:12:35 PM

You probably won't be able to use the 4GB kit with the 8GB kit.

If you must have more RAM either buy a 16GB kit or you can try buying an identical (as in the exact same set) kit and it probably will work but mixing RAM isn't a guarantee, even from the same set.
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