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Upgrading Ram Memory need some help

I have a Dell XPS 9000 with Intel i7 920 and Win 7 64bit.
When I bought the computer it came with 8gigs of ram.
The 8gigs are 4 - 2gigs they are DDR 3.
I have 6 slots for DDR 3 memory sticks. Can I put 6 - 4gig DDR 3 sticks in those slots (giving me 24gigs of ram memory) or add 2 - 2gig sticks bring it up to 12 gigs of ram memory OR Question - can I keep the 4 - 2gigs and add 2 - 4gigs DDR 3’s?

The first time I talked with Dell about upgrading the computers memory I was told I could only go to 12 gigs and that would mean to buy 2 - 2gig sticks. The next time I talked with Dell the tech said I could buy two 4gig sticks and bring the memory up to 16gigs (that is keep the four 2 gig stiks and add 2 - 4 gig sticks. Then next time I talked with Dell tech they said I needed to buy 6 - 4 gig sticks and put them in (24gigs) OR get 2 - 2gig sticks and put them in (12 gigs).

So which is it?

I was at Dell’s site and they have 4gig DDR3’s for 29.99 dollars - about 160 dollars to get 24 gigs of ram memory. Anyone know it that is a good price for 24 gigs of DDR 3?
Here’s a link to the 4 gig sticks at Dell.
http://accessories.us.dell.com/sna/productdetail.aspx?c=us&l=en&s=dhs&cs=19&sku=A2507437&mfgpid=201427&chassisid=8754&~ck=baynoteSearch&baynote_bnrank=0&baynote_irrank=0

Depends on which version of windows 7 you’re running:

Physical Memory Limits: Windows 7 The following table specifies the limits on physical memory for Windows 7.
|
|
|Windows 7 Ultimate| 4 GB
| 192 GB
|
|Windows 7 Enterprise| 4 GB
| 192 GB
|
|Windows 7 Professional| 4 GB
| 192 GB
|
|Windows 7 Home Premium| 4 GB
| 16 GB
|
|Windows 7 Home Basic| 4 GB
| 8 GB
|
|Windows 7 Starter| 2 GB
| N/A
|

As for adding 2 4’s and keeping 4 2’s you should be okay as long as the sticks are matched to the same channels (usually the slots are color coded) and the 2 and 4 sticks match specs, DDR3 PC3-12800, DDR3 PC3-10600, DDR3 PC3-8500, etc…

What MentalFrog stated is only what the OS’s can handle. Keep in mind that motherboard chipsets can only handle so much and most motherboard manufacturers will state the maximum amount of ram for their boards. The Dell techs that you communicated with deserve a good kick in the ass, as there is really only one answer. Why each one had a different answer is beyond me. Too damn lazy to look up the specs for the mobo’s they use is my guess.

You could try running Speccy to find out the exact make and model of motherboard you have, then grab the manual for your motherboard directly from the motherboard manufacturers web site in PDF format. That should let you get the info you need on what configurations/amounts are supported.

Speccy is free:
http://www.piriform.com/speccy

MentalFrog - Thanks for the info I have Windows 7 Ultimate OS

zber2 - Thanks. They where very :confused: I think

GreenStuff - Thanks for the Speccy link for download.

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