mkawaa
1 Copper

Reviving old Dell Optiplex 780 MT - RAM problem

Hello, today i brough a kit of ddr3 memory to my old Dell Optiplex 780 MT but it doesnt work. Seller stated that the memory is OK, but trying to run it its giving me black screen and memory problem beep signal. I checked the other slots, every single one works fine with other memory but not with the one i brough. Is the memory incompatible with my Dell? Here is the problematic stick:

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5 Replies
Moderator
Moderator

RE: Reviving old Dell Optiplex 780 MT - RAM problem

mkawaa,

Below are the memory specs for the 780MT. Verified that your memory meets the requirements below. If not, it will not work. 

Type DDR3 SDRAM (non-ECC memory only)
Memory speed 1067 MHz, 1333 MHz
Memory connectors Four
Memory modules supported 1GB, 2GB, 4GB non-ECC
Minimum memory 1 GB
Maximum memory 16 GB

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speedstep
6 Thallium

RE: Reviving old Dell Optiplex 780 MT - RAM problem

You cant mix and match ANY OLE Joes crab shack ram and it works.

You also cannot mix ranks and Density.

The ram you have in the picture is dual Rank High Density and too slow ram and wont work.


https://www.amazon.com/KINGSTON-KP223C-ELD-DESKTOP-PC10600-256MX64/dp/B00RY1IRQC

 

Recommended Ram is faster and Low Density and works.

Crucial 2GB DDR3L-1600 UDIMM

http://www.crucial.com/usa/en/optiplex-780-mini-tower/CT2354452

 

CT2354452

  • Brand: Crucial
  • Form Factor: UDIMM
  • Total Capacity: 2GB
  • Warranty: Limited Lifetime
  • Specs: DDR3 PC3-12800 • CL=11 • Unbuffered • NON-ECC • DDR3-1600 • 1.35V • 256Meg x 64 •

 


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mkawaa
1 Copper

RE: Reviving old Dell Optiplex 780 MT - RAM problem

I am not mixing anything, i put this stick into DIMM1 slot while the rest of slot is empty, I'm curious if this stick is not working with Dell 780MT or if it is broken

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speedstep
6 Thallium

RE: Reviving old Dell Optiplex 780 MT - RAM problem

Its not compatible and its too slow.  End of story.


Report Unresolved Customer Service Issues
here

I do not work for Dell. I too am a user.

The forum is primarily user to user, with Dell employees moderating
Contact USA Technical Support






Get Support on Twitter @DellCaresPro

mkawaa
1 Copper

RE: Reviving old Dell Optiplex 780 MT - RAM problem

There is literally no difference between 1333 and 1600 on old hardware, that was tested and benchmarked a lot of times. But if its not compatible that answers my question, thanks

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