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Required minimum memory?

Last response: in Systems
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September 12, 2009 1:16:49 PM

Hi guys

Forgive me for being a total newb, but I have read somewhere (I forgot) that there are certain processor+mobo setups that need a minimum of 3 Memory slots...

Does an i7 and a DX58SO setup need 3 DDR3 memory (minimum) for it to work?

i7:

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

DX58SO:

http://www.newegg.com/Product/Product.aspx?Item=N82E168...


How about an i5 and this mobo?

i5:

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

MSI P55-GD65 LGA 1156 Intel P55 ATX Intel Motherboard - Retail

http://www.newegg.com/Product/Product.aspx?Item=N82E168...


By the way, how would I know if the mobo needs at least 2 or 3 memory?

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a b B Homebuilt system
a b } Memory
September 12, 2009 2:08:00 PM

This as simple as I can put it... If it says X58 or socket LGA 1366, it utilizes triple channel memory (3 sticks or 6 sticks). All other MOBO's utilize dual channel memory (2 sticks or 4 sticks).

Core i7 920, 940, 950, 965 & 975 are the only ones that utilize triple channel memory at this time. Moving forward, the Core i9 CPU's will utilize triple channel memory when they are released next year.
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September 13, 2009 12:48:38 AM

ok thanks
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a b B Homebuilt system
a b } Memory
September 13, 2009 5:04:39 AM

ehcastro3 said:
Hi guys

Forgive me for being a total newb, but I have read somewhere (I forgot) that there are certain processor+mobo setups that need a minimum of 3 Memory slots...

Does an i7 and a DX58SO setup need 3 DDR3 memory (minimum) for it to work?

i7:

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

DX58SO:

http://www.newegg.com/Product/Product.aspx?Item=N82E168...


How about an i5 and this mobo?

i5:

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

MSI P55-GD65 LGA 1156 Intel P55 ATX Intel Motherboard - Retail

http://www.newegg.com/Product/Product.aspx?Item=N82E168...


By the way, how would I know if the mobo needs at least 2 or 3 memory?

You don't have to have 3 DDR3 sticks to run with. You can have just 1 slot filled if you like, so you don't have to buy 3 sticks to "make things work". It would be a shame to only run with 1 or 2 sticks of DDR3 on an i7 mobo, but it'll still work. You wouldn't take advantage of the "Triple Channel" that the i7 mobo's support, but it will work without 3 RAM sticks.
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