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2GB with 4GB KIT


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I am currently using 2GB of Corsair TWIN2X2048-6400C5DHX on my Intel DG45ID mobo. Now i want to upgrade my RAM. i am planning to buy 4GB kit Corsair TWIN2X4096-6400C5DHX which will increase my total ram to 6 GB.


My question is that, Can i use 2GB kit with 4GB kit in this manner :idea: as both kit's have same specifications?

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I've got DDR3, but like you're asking, I have a 2GB and 4GB kit of identical spec'd ram. They work fine together under a P45 chipset, and G45 shouldn't be that different.


If you're lucky, you'll have no problems running them at their settings, but the usual advice is if there are any problems (ie crashes/stability issues), increase your north bridge (or MCH or whatever else it's called) by a smidge, and do the same for your DIMM voltage as well.


If that doesn't resolve your problems, then lowering the ram speed is the next step, although with DDR2-800, I doubt that would be necessary.


There are plenty of posts by RAM Guy on what to do when running 4 DIMMs on the forums, so just take a look at some of those and that'll tell you what to do.


EDIT: Here's a post with some instructions for 4 DIMMs, see post #3


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You are welcome to try them at full speed but we have posted this many times in reference to mixing memory or running 4 modules.

With 4 modules I would suggest setting the memory frequency at DDR667 and set the memory Voltage to 2.1 Volts and set the NB/MCH/SPP Voltage to +.2 Volts as well and test the system with http://www.memtest.org. In addition, with some MB's (Mostly ASUS) you have to disable legacy USB in the bios when running any memory test.
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