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I recently picked up a "scratch and dent" PC from the Dell Outlet during their 20% off & free shipping promotion.  I scored a decent deal (less than the cost of components + Windows License), but the PC I snagged doesn't have quite as much RAM as I would like.  I'm comfortable with opening PCs and installing components, but I've lost track of what kinds of RAM are compatible with the various motherboards/socket types/processors,etc..  Since upgrades directly from Dell are (generally speaking) a ripoff, I was hoping to do the upgrade myself with some cheap RAM from Newegg or Tigerdirect.

The PC is coming with 3GB RAM and I'm hoping to double that up to 6GB.  Below is the spec sheet from my order and, to me, it might as well be in Sanskrit.  Can anyone point me in the right direction for some compatible RAM?

Also, this PC is purposed as a general all purpose machine with some light gaming.  I plan on swapping out the stock PSU and video card for the ones from my current PC.  Will I have any issue with installing my ATI Radeon HD 4850 (512MB GDDR3 Memory) in the new PC?

Studio XPS 8100 Desktop, Intel Core i7

Base, Mini Tower, Non Pfc, Configure To Order, Studio Xps,8100

Module, Label, Microsoft, Desktop, Windows Seven

Module, Thermal, 95W, MNTW/SLTW

Module, Processor, Lynnfield, I7-860, 2.8, XPS DT

Module, Label, Intel, Desktop    CI7, Rebranding

Module, Plug, VIDEO, JACK, High Definition Multimedia Interface, Digital Video Interface

Module, Dvd+/-rw And Bd-rom, BARE, Plds, INS

Module, Cord, Power, 125, C13, GRAY, United States

Module, Dual In-line Memory    Module, 3G, 3X1GB, 1333, Dimension

Module, Hard Drive, 1TB, 7.2K    PHAR-XLOB

Module, Card,Graphics, M114N, STUDIO XPS

Module, Keyboard, 104, United    States, KWM9C1

Ship Group, Mini Tower, English, Dell Americas Organization, SXPS 8100

Please let me know if you need any additional information.  Many thanks in advance.  

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Which version of Windows 7?

Home or Pro?

32-bit or 64-bit?



It looks like you have three 1GB sticks of DDR3.



Assuming you have a 64-bit OS you should be able to replace them with a pair of 4GB sticks - look in your manual or contact Dell to be sure.

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Home 64 bit.  



Thanks for all the replies.  I'm definitely heading in the right direction.  



I did specifically request upgrading to 6GB, but I had no idea RAM is so cheap nowadays.  Would I have any compatibility problem(s) if I picked up 3 of the "Cheap" 4GB DDR3 sticks?

 

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That chip only has a dual channel controller, by the way, so 3 DIMMs won't improve performance over 2.
 

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Yep.  I am wondering if it is on a Dell proprietary mobo?  Most LGA1155 systems I see have RAM slots in multiples of two, not three.