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Ram Compatibility


htennek

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I am having TWIN2X2048-6400C4 in my system. I want to ask if it is a good idea to buy TWIN2X2048-6400C4DHX so I can have 4 GB of ram altogether? I heard people said it is not good to use different kind of rams in the same system. If both my new and old rams have the same timing 4-4-4-12 at 2.1v, are they workable?

Please help me out...

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The only memory Corsair supports in a four DRAM slot population is their Quad kits. This does not mean two dual kits or even worse two dual kits of different versions will not work together, just that you have no recourse to RMA Corsair if they do not work together. If there are problems with the DRAM modules, they are still supported via lifetime warranty, but that is for physical defects and errors in a two stick kit mode. Matched Quad sets are highly binned modules for a four slot population. The Dual sets are tested as a kit, not a Quad and warranted as a dual kit, not a Quad setup. You need to Memtest them as Kits (2 modules, not as a four DRAM slot population). If they fail as a kit or singly, then you have RMA. Keep in mind that there is no support for mixing and matching different versions of DRAM either since different version are of different fabrications and/or manufacturers. They might work, they might not work, but you have no support if they do not work. Thus you are advised to buy all the DRAM at the same time and in this way be more assured of getting the same versions. If you buy online, be sure to specify same versions of the modules.

 

You are advised to drop the bandwidth to 667Mhz and raise the NB Voltage +.2v.

 

Please research this thread:

 

http://www.houseofhelp.com/v3/showthread.php?t=64360&highlight=Unpredictable+results+QUAD2X4096+Gigabyte+X38-DS5

 

There is a limitation of the On Motherboard (Intel) memory controller or On CPU (AMD) and a population of all four banks at the full speed of a two bank run. This limitation is across the board with both AMD and Intel chipset based boards, DDR, DDR2 and DDR3.

 

Keep in mind that often issues can arise in the longer term even though you have shorter term stability. The issues seldom damage the DRAM unless you raise the DRAM voltage too high. They damage the on CPU (AMD or i7) or on motherboard (Intel) memory controller which has a harder time keeping up with the demands of a four DRAM slot population being run as fast as a two DRAM slot population.

 

I advise people to sell the 2GB kit and purchase a single 4GB kit and bypass all the possible issues. Especially at the very low price of DDR2 DRAM.

 

I am having TWIN2X2048-6400C4 in my system. I want to ask if it is a good idea to buy TWIN2X2048-6400C4DHX so I can have 4 GB of ram altogether? I heard people said it is not good to use different kind of rams in the same system. If both my new and old rams have the same timing 4-4-4-12 at 2.1v, are they workable?

Please help me out...

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Actually my motherboard has 2 pair of ram slots, not a Quad ram set. Now I have one pair TWIN2X2048-6400C4 onboard and I am thinking to fill up the other pair of slot w/ TWIN2X2048-6400C4DHX. Any suggestion?

 

http://www.newegg.com/Product/ProductReview.aspx?Item=N82E16820145179

 

This is the only type (Quad Kit) of Corsair DRAM that is supported at four modules. Everything I said above stands.

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