Dell Optiplex 990 SFF

Question

i have a dell optiplex 990sff, It contains a Dell D6H9T motherboard with a Q67 Express Chipset.

My question is : Will this unit support a Core i3, i5 ,i7 3220 or 3770 cpu? and if i can put more than 16GB o thats the limit?

speedstep · Answer

http://www.dell.com/downloads/global/products/optix/en/optiplex-990-tech-guide.pdf

Core I 3000 series does not appear to be listed for

INTEL Q67 Express Chipset / Intel® HD Graphics 2000

SFF HAS 4 Slots and USFF only have 2 ram slots. So 8 or 16 gigs is max not 32 or more.

http://www.crucial.com/usa/en/optiplex-990-small-form-factor/CT7366077

Max Dimm Size is 4 gigs not 8 or 16 gig dimm.

LGA1155 is a VERY specific Socket. Fitting into the socket and compatability are not one and the same thing. The Q67 Lists the following.

Product Name # of Cores Processor Base Frequency

Intel® Core™ i7-2600S Processor	4	2.80 GHz
Intel® Core™ i7-2600K Processor	4	3.40 GHz
Intel® Core™ i7-2600 Processor	4	3.40 GHz
Intel® Core™ i5-2550K Processor	4	3.40 GHz
Intel® Core™ i5-2500T Processor	4	2.30 GHz
Intel® Core™ i5-2500S Processor	4	2.70 GHz
Intel® Core™ i5-2500K Processor	4	3.30 GHz
Intel® Core™ i5-2500 Processor	4	3.30 GHz
Intel® Core™ i5-2450P Processor	4	3.20 GHz
Intel® Core™ i5-2405S Processor	4	2.50 GHz
Intel® Core™ i5-2400S Processor	4	2.50 GHz
Intel® Core™ i5-2400 Processor	4	3.10 GHz
Intel® Core™ i5-2390T Processor	2	2.70 GHz
Intel® Core™ i3-2130 Processor	2	3.40 GHz
Intel® Core™ i3-2125 Processor	2	3.30 GHz
Intel® Core™ i3-2120T Processor	2	2.60 GHz
Intel® Core™ i3-2120 Processor	2	3.30 GHz
Intel® Core™ i3-2105 Processor	2	3.10 GHz
Intel® Core™ i3-2102 Processor	2	3.10 GHz
Intel® Core™ i3-2100T Processor	2	2.50 GHz
Intel® Core™ i3-2100 Processor	2	3.10 GHz

unknown_entity · Answer

I dont know about you but this helped me out with my motherboard purchase thank you

redxps630 · Answer

You can put 32GB ram in 990 SFF as proof on a sold eBay pc.

this is commonly seen in optiplex where user can successfully upgrade ram to 2x Dell spec max. It is doable although considered nonstandard by Dell and outside the scope of Dell.

R2Deetwo · Answer

Hi Red Do u think it will work on Core i3 as well? Thanks.

bj11213 · Answer

Memory support is the chipset's job. The processor 'talks' to the memory through the chipset. So whether memory works or not is not dependent on the processor model (so long as the chipset supports it).

Optiplex Desktops

Dell Optiplex 990 SFF

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