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Which memory module i want to purchase as second expanding kit


chinthakaru

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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 and do not expect even then that they will work and again, no support unless you purchase a quad kit.

 

For a four DRAM slot population of 1066Mhz DRAM you are advised to drop the bandwidth to 800Mhz 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) 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.

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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 and do not expect even then that they will work and again, no support unless you purchase a quad kit.

 

For a four DRAM slot population of 1066Mhz DRAM you are advised to drop the bandwidth to 800Mhz 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) 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.

 

 

Hi Mate,

 

Thanks for the update.

 

I can't understand what are you saying regarding not support DRAM population.then can you explain my concern.

 

1)I have purchased dual memory kit TWIN2X4096-8500C5DF.now i need a expand my memory capacity to 8GB.Can i do it ?

 

2)if can ,Which memory module must be purchase ?

 

Pls check my PC spec for info

 

Regards & Thanks

 

Chinthaka

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I can't understand what are you saying regarding not support DRAM population.then can you explain my concern.

 

What I mean is that Corsair sells kits and supports those kits as such:

 

To wit: A matched pair of CMxxx modules that make up a Twinxxx kit. A two kit solution is not supported which means that you can not RMA a set of kits for not working in your motherboard. Corsair sells supported Quad Kits that are a four module quad set of CMxxx modules that make up a Quadxx kit and these are supported via RMA if they do not work in the motherboard.

 

Regardless of the above, if any single memory module has errors in memtest, they are supported for RMA at any time in their lifetime warranty.

 

1)I have purchased dual memory kit TWIN2X4096-8500C5DF.now i need a expand my memory capacity to 8GB.Can i do it ?

 

2)if can ,Which memory module must be purchase ?

 

Pls check my PC spec for info

 

You can do it. But some motherboards and wonky motherboard memory controllers either will not work with a four DRAM slot population or will have to have their bandwidth dropped for stability. But, either way, if you install and the two kits do not work in your system, you can not RMA the modules if they pass in single tests. Dual channel is a function of the memory controller (motherboard) and not the DRAM.

 

I know this sounds confusing so let me clarify. You can purchase two identical DRAM kits of the same model and version. You might have to drop the bandwidth of the modules to gain stability when you do so but it should work. If it does not work, you can not send the RAM back to Corsair so be certain to purchase from a company that will take them back if your board does not accept the configuration.

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What I mean is that Corsair sells kits and supports those kits as such:

 

To wit: A matched pair of CMxxx modules that make up a Twinxxx kit. A two kit solution is not supported which means that you can not RMA a set of kits for not working in your motherboard. Corsair sells supported Quad Kits that are a four module quad set of CMxxx modules that make up a Quadxx kit and these are supported via RMA if they do not work in the motherboard.

 

Regardless of the above, if any single memory module has errors in memtest, they are supported for RMA at any time in their lifetime warranty.

 

 

 

You can do it. But some motherboards and wonky motherboard memory controllers either will not work with a four DRAM slot population or will have to have their bandwidth dropped for stability. But, either way, if you install and the two kits do not work in your system, you can not RMA the modules if they pass in single tests. Dual channel is a function of the memory controller (motherboard) and not the DRAM.

 

I know this sounds confusing so let me clarify. You can purchase two identical DRAM kits of the same model and version. You might have to drop the bandwidth of the modules to gain stability when you do so but it should work. If it does not work, you can not send the RAM back to Corsair so be certain to purchase from a company that will take them back if your board does not accept the configuration.

 

if i purchese TWIN2X4096-8500C5D to my second kit instead off TWIN2X4096-8500C5DF, is it correct or not ?

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This has been answered. No one can guarantee one pair will be compatible with another pair, as they have not been tested together. Your best chance at compatibility is to make sure the part # and version #s match. Don't forget that since you're maxing out your memory controller that it's recommended you drop the speed a notch, as most memory controllers can't handle 4 slots @ full load.
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