Question RAM lesson please for Dell Optiplex 990 (can i use server memory?)

BNDAZ

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May 23, 2008
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I have a DELL optiplex 990 running an older i7 that i want to upgrade a bit with more ram and an SSD. the unit(from Dell spec sheet says: Non-ECC dual-channel 1333MHz DDR3 SDRAM

i would like to pick up a 4x4gb kit as cheap as possible(used is fine) and i am finding some things on eBay with those specs but are listed as "Server Memory". Is that something i can use or no? Any other insight on what i should avoid or look for with those specs i listed? Thank you !
 

BNDAZ

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If it is non-ECC then yes, if it is ECC memory which I believe most server memory is then no. If it doesn't specifically list what it is, I wouldn't buy it.

DDR3 is pretty cheap, you can usually find 8GB for roughly 10 or 20 bucks.
Thanks, im look for a 4x4GB kit Any suggestion on best place to shop?
 

BNDAZ

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Why are you looking for a 4x4GB kit? Two 8GB sticks would be just fine.

Just check ebay, crasiglist, Facebook Market Place etc. If you have a computer recycling place sometimes they also sell the good parts out of PCs like RAM, CPUs etc.
the board has 4 slots and a 16 gb max i just presumed 4x4>
Will it take 2x8 and just leave two slots open?
 

BNDAZ

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No you can just use two sticks. You will need to install them in slots A1 and B1 in order to get dual channel mode

https://downloads.dell.com/manuals/all-products/esuprt_desktop/esuprt_optiplex_desktop/optiplex-990_service manual2_en-us.pdf


The only issue I see is that Dells can have some memory compatibility issues for non Dell RAM. Crucial I believe has the best track record of working. Its been a long time since I owned a Dell so I don't remember exactly.
excellent, thank you !
 
Dells need low density RAM which is X64, not "AMD" x128 modules. An Optiplex will need UDIMM memory. Some server RAM is RDIMM and needs a server chipset to work. Some people report systems using ECC RAM and just ignoring the extra chip, but no guarantee it will work for you. Crucial.com will guarntee their kits.
 

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