Using 2 different ram sticks with different speeds?

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salstrzw

salstrzw

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Jul 13, 2013
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I did some research of my current back-up PC. The ram is DDR3 clocked at 1333MHz. I upgraded my ram a while ago, and it was clocked at 1600MHz. Did I do damage to my computer by having 2 different clock speeds? Does the 1600 bottleneck to 1333MHz? What happens when 2 ram modules have different speed?

Stock PC: http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&taskId=120&prodSeriesId=5080733&prodTypeId=12454&objectID=c02927237

Ram Upgrade: AMD Memory Entertainment Edition 1x4GB DDR3 1600MHz (Patriot Memory)

Appreciate responses, would like to know if I should remove my ram to stop anything bad that is happening.
 
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DRosencraft

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Aug 26, 2011
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Mixing memory is generally not advisable, but usually not very dangerous. The problem is that the PC you linked to doesn't support DDR3-1600 memory in the first place. So, even if you take out the 1333 it came with, it will either down-clock the 1600 to 1333, or may not work at all and give you a memory error when you start up the computer.
 
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muayyad AJ

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Apr 19, 2013
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i checked the link you posted in the OP your mobo/cpu doesn't support higher than 1333 mhz. so even removing the 1333mhz stick your ram will still be capped to 1333 mhz
edit : if your running 8 gigs of ram the speeds are capped to 1066mhz
 
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salstrzw

salstrzw

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Jul 13, 2013
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Is there a feasible solution to fix the problem? When I upgraded my ram about a year ago, it felt faster. I also do a lot of multi-tasking, so I don't know if I can survive with 4GB.

I plan on building a PC in the future, and I may reuse the ram. Will the ram be damaged in any way, or will it run normally in 1600MHz since the mobo supports it?
 
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