I purchased this system used and oddly seems the 2GB DIMM is in the second slot. Odd becasue acording to the menual this should not work.
Anyway I was wondering what my upgrade options are. I guess I need to get pairs of same memory. IdealyI I would like to just put another 4GB slot in but is is possible to put a 2GB + a 4GB. If so whitch slots would I put them in?
*-memory description: System Memory physical id: 3b slot: System board or motherboard size: 2GiB *-bank:0 description: DIMM [empty] product: [Empty] vendor: [Empty] physical id: 0 serial: [Empty] slot: ChannelA-DIMM0 *-bank:1 description: DIMM DDR3 Synchronous 1333 MHz (0.8 ns) product: HMT325U6BFR8C-H9 vendor: Hynix/Hyundai physical id: 1 serial: 1F93FF0A slot: ChannelA-DIMM1 size: 2GiB width: 64 bits clock: 1333MHz (0.8ns) *-bank:2 description: DIMM [empty] product: [Empty] vendor: [Empty] physical id: 2 serial: [Empty] slot: ChannelB-DIMM0 *-bank:3 description: DIMM [empty] product: [Empty] vendor: [Empty] physical id: 3 serial: [Empty] slot: ChannelB-DIMM1
Mixing memory is not a good idea. Many (most) times it does not work. Not just a "Dell" issue but any PC.
Here is the Crucial memory listing for this model. Dell's have a history of memory compatibility with non-Dell memory and Crucial is one brand that is guaranteed to work in a Dell. If you buy memory somewhere else, buy from a site that has a liberal return policy if it doesn't work.
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Your 2nd option above would count as mixing. I don't see a reason why the 9010 wouldn't run on 3 chips.
Optiplex 9010 Tech Guide -.if it helps.