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Question about Core i5 (memory)

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November 28, 2009 4:24:19 AM

In my motherboard manual it says this ...

"Due to Intel spec definition, X.M.P. DIMMs and DDR3-1600 are supported for one DIMM per channel only"

UUUUGGGH so I can only us 2 x 2GB at DDR3-1600????
What's going to happen if I install the 4x2gb DDR3-1600 that I ordered???

I only found this in my MB manual and havn't come across it in the CPU datasheet ....yet.

Anyone know anything about this?

Thanks

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November 28, 2009 4:28:34 AM

While technically, it is only supported at 1 DIMM per channel, you should be able to run 2 DIMMs per channel without trouble. I'm running 2 per channel in my i7 (which has the same warning), and it's running flawlessly.
February 28, 2011 1:53:34 AM

@cji I was thinking of 4 x 2Gb = 8Gb ddr3-1600. Is that your configuration, and does your OS see all the memory, does it use it ? (Sorry, im noob ..) I've already bought the crucial sticks, so this is a bit worrisome !
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February 28, 2011 3:33:46 PM

As long as your OS is 64-bit it should see all the memory. The 64-bit version of Windows handles large amounts of random access memory (RAM) more effectively than a 32-bit system. A 32-bit OS can theoretically use up to 4 GB of RAM, but 32-bit versions of Windows Vista and Windows 7 see a maximum of 3.12 GB. With 64-bit Windows 7, you can use the full 4GB RAM.
February 28, 2011 6:35:27 PM

Sorry, yes, I have 64 bit Windows, but I wondered whether my *8Gb* (4 sticks x 2Gb) will work?
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February 28, 2011 9:00:12 PM

Well, cjl had the same warning on his mobo and he isnt having any problems, so you shouldnt be having too. My mobo manual says i should run my ram at 1333 mhz but atm i have 2 sticks running at 1700 mhz and my system is completely stable. ^^
March 1, 2011 6:35:32 AM

Yes, and I found a place which explains that with my i5-655K I can
overclock to the exact speed anyhow. I *am* noob.
!