Mixing High and Low Profile Ram

jamesa82

Reputable
Nov 17, 2014
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Hi everyone i bought some ram off corsair a while back. It was 8gb of low profile 2133 mhz memory (2 x 4). I decided to upgrade it to 16gb and bought another 2 sticks of 4gb ram. The thing is i didn't realize i'd bought the high profile version. The ram seems to be compatible. I installed the 2 sticks and set the xmp profile to profile 1 and left it at that so i didn't set the timings manually. My issue is cpu z says they actually have different timings in the spd tab. The low profile ram (part NO: corsair cml8gx3m2a2133c11) says TRAS is 27 where as in the high profile ram ( part number corsair cmz8gx3m2a2133c11) tras is 30. Is this something to worry about or did the xmp profile automatically set all the to run at the same speed because in the memory tab of cpu z it says the memory is running with tras at 30 (the rest of the timings are the same in the spd tab so I'm not too worried about them). Also in cpu z the spd ext says xmp 1.2 for the high profile ram but 1.3 for the low profile ram.
Is this anything to be concerned over or is the ram running at the same speed.
Thanks for any help you can give i didn't intend on buying 2 different kinds of ram and didn't expect there to be any difference between the high and low profile versions of the same memory other than one having a heat sink.
 

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