Dual Channel/Speed

August 23, 2010 at 02:09:50
Specs: Windows Vista, Q6600 @ 2.4 GHZ, 2 Gig Ram
Ok so i wanted to get more ram, but i was wondering...
Right now i have 2 1gig DDR2 667 PC2 5300 ram
Is it worth to pay extra to get 2 1gig sticks to get dual channel or just save $10 and get a single 2gig stick.
And can mix and match speeds? Have 2 1 gig 667 speed and the other 2 gigs as DDR2 800? Will the 2 rams operate in different speed or operate as one speed ( the lower speed )
BTW my mobo can take DDR2 667/800, but came with 2 1gig 667 ram.

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August 23, 2010 at 04:55:59
Cpu xternal speed (fsb) and memory speed should be equal (ratio 1:1).
U have q6600 which is 1066fsb.
Fsb1066/4=266.5 Ddr533/2=266.5
underclock ram to 533ddr.
Some motherboard can run dual channel with 3 sticks, some can't, some can run with different sticks, some can't.
U should be able to run dual channel with your current memory (2x1gb if they are identical)
i can't tell u if u can run dual channel (after mem upgrade).
If u mix mem (1gb ddr2 800 and 2gb ddr2 667), 1gb ddr2 800 will run at 667ddr.
(4x1gb or 2x1gb and 1x2gb=4gb 64bit os required)
edit: try to compare timings and mem voltage (may be u can run dual channel)

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