I recently purchase 1x1gb rams (Corsair TWINX2048-3200PT 2GB DDR400 XMS3200 Memory) from ebay and i was wondering if I would benefit more if i simply added those 2 gb rams into my rig for a total of 2.5 or should i remove my old 512 completely and install the 2gb because my mobo can support dual channel rams.
I use my computer mostly for gaming.

Well if you're talking about dual channel rams, which is a pair of male sheep...wrong forum

Dual Channel RAM however is a method of improving memory bandwidth.

A standard Synchronous Dynamic Random Access Memory module (SD-RAM) has an interface that's 64-bits wide. This means that every clock, it can transfer 64 bits, or 8 bytes. A module that runs at 200 MHz Double Data Rate (DDR400), clocks 200 million times per second, transferring 3.2 GB per second. This performance can be improved by adding another channel - another logical memory subsystem - in parallel. This increases the interface to 128-bits wide, allowing up to 6.4 GB per second. You may have heard of graphics cards with 128-bit and 256-bit memory; this is dual channel and quad channel respectively. In the past, there have even been quad channel SDR chipsets, but such is not necessary today with high clock speeds.

Intel's i865/i875 dual channel solution is symmetric, which means that each channel must have exactly the same number of banks and chips, which also implies that it must have matching pairs of memory. If an uneven quantity of memory is installed, the memory controller falls back to single channel mode. Realistically, there are few circumstances where this is unavoidable. In your case, a total of 2.5 GB will offer nothing than 2 GBs does not, except that your memory bandwidth will be halved, hurting performance; gaming especially.

Nice! ;D

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lol@syphus, gud 1, never heard of sheep which are dual type though, are those two sheep stuck together or something??

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So more isn't always better eh? Thanks a lot.