optiplex 780 ddr3 issue

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optiplex 780 ddr3 issue

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hi everyone,

 

i've just bought some extra ram for my dell optiplex 780 (DT), which is Dual Channel DDR3 Corsair Value Select, 2 x 2 Go, PC3-10600, CAS 9

once inserted, (tried with swapping modules - just one and swapping banks) no way to boot, just an awful sound from the buzzer ^^

question : are this ram modules compatible with this computer ?

btw, i found out that 'it should be' according to the kingston site (on which you select your computer and it tells you what modules are for you ^^)

 

thanks !

claude

 

Verified Answer
  • Hi Claude,

    Welcome to Dell Community.

    Your Dell Optiplex 780 does support DDR3 memory but the maximum memory speed it supports is 1067MHz (PC2-8500). The memory modules which you have purchased have memory speed of 1333MHz and unfortunately they are not compatible with your computer.

    Please contact the vendor for getting the memory modules replaced with 1067MHz modules.

    If you have any further questions feel free to reply.

    Thanks & Regards
    Kalyan S
    #iworkfordell

    To know more about Dell Product Support, Drivers & Downloads, Order & Dispatch status -> choose your region US; India. For Dell support videos click Here.

All Replies
  • Hi Claude,

    Welcome to Dell Community.

    Your Dell Optiplex 780 does support DDR3 memory but the maximum memory speed it supports is 1067MHz (PC2-8500). The memory modules which you have purchased have memory speed of 1333MHz and unfortunately they are not compatible with your computer.

    Please contact the vendor for getting the memory modules replaced with 1067MHz modules.

    If you have any further questions feel free to reply.

    Thanks & Regards
    Kalyan S
    #iworkfordell

    To know more about Dell Product Support, Drivers & Downloads, Order & Dispatch status -> choose your region US; India. For Dell support videos click Here.

  • Hi Kalyan,

    Thanks for your reply.

    So now i know what to do : get some new ram modules ^^

    Again thanks for your advice.

    Have a good day

    Claude

  • Hi, i just beefed up a dell optiplex 780 to quad 9550 cpu, seagate 620 watt psu, it already had windows 7 64bit on it. To the point: crucial 16 gb of 4x4gb dimms ddr3 1333 gaming/sport ram with the metal heat things on the sides of the ram modules and motherboard knocked the ram down to 1067 mhz (i expected that) chipset limit... I dont care because it's FAST! Had to reboot a couple times for it to get comfortable with the ram... Almost forgot, performance heatsink w/copper to cool quad well. Ran prime95 -- not much heating. It works well, hope this info helps someone.
  • Hi,

    As our friend Claude, I bought a 4GB DDR3 1333MHz, and not worked. But as I see on the technical guidebox below, this should be possible.

    http://i.dell.com/sites/content/business/solutions/engineering-docs/en/Documents/optiplex-780-tech-guide.pdf

    Any ideas?

    Thanks Everson.