Aspire ATC-120-UC22 memory acknowledgement?

CrimsonFox
CrimsonFox Member Posts: 14

Tinkerer
edited March 2023 in 2016 Archives

I have a costco system.

Acer Aspire ATC-120-UC22
It came with 4GB of memory (kingston) 1 stick 4 GB -1600

I bought an 8 GB kit...crucial memory... 2 x 4 GB


The system has 2 blue ports for memory and 2 black ports.
THe 4GB stick was in the blue port and that port was closest to the processor (the middle)

I was advised to put both things of memory that I bought in the same colors.
So I put both of the 4GB-1866 memory sticks in the blue slots. I took out the 1 4GB that was there and moved it to the black slot in between.

BOoted up the computer.

It is not acklowledging the next 2 slots. It still only sees 4GB.

I scanned the system using crucial's scanner http://www.crucial.com/
It still seemed to show that only the FIRST slot had 4GB of memory in it.

I'm puzzled.

Help.

Is there a way to see more accurately what is in the next 2-3 slots?
is there something I have to "turn on"?
Should I move the memory?
THings do seem fine now as i'm online. But it says the extra memory isn't there.

Best Answer

  • RevoMaxx
    RevoMaxx ACE Posts: 458 Pioneer
    Answer ✓

    Important as you found out is the make sure they Pair are in the same Colors... But your sytem should be set up as stated below to work right. 

     

    Size     DIMM1     DIMM2     DIMM3     DIMM4

    2G         2G         N/A         N/A         N/A

    4G         2G         2G           N/A         N/A

    4G         4G         N/A         N/A         N/A

    6G         2G         2G          2G           N/A

    6G         4G         2G          N/A         N/A

    8G         2G         2G          2G           2G

    8G         4G         2G          2G           N/A

    8G         4G         4G          N/A         N/A

    8G         8G         N/A         N/A         N/A

    10G       4G         2G          2G            2G

    10G       4G         4G          2G           N/A

    10G       8G         2G          N/A         N/A

    12G       4G        4G            2G           2G

    12G       4G        4G            4G          N/A

    12G       8G        2G            2G          N/A

    12G       8G        4G          N/A          N/A

    14G       4G        4G           4G            2G

    14G       8G        2G           2G            2G

    14G       8G        4G           2G           N/A

    16G       4G        4G           4G            4G

    16G       8G        4G           2G            2G

    16G       8G        4G          4G            N/A

    16G       8G        8G         N/A           N/A

    18G       8G        4G          4G             2G

    18G       8G        8G          2G            N/A

    20G       8G        4G          4G             4G

    20G       8G        8G          2G             2G

    20G       8G        8G          4G           N/A

    22G       8G        8G         4G             2G

    24G       8G        8G         4G             4G

    24G       8G        8G         8G            N/A

    26G      8G         8G         8G            2G

    28G      8G        8G          8G            4G  

    32G      8G        8G          8G            8G

     

     

    Sorry if once posted it don't look 100% right but should be good enough to give you the right idea of what and how they should be placed. YOur slots should have DIMM1 DIMM2 and so on. 

     

    Hope this was helpful

    James

     

Answers

  • laurent_14
    laurent_14 ACE Posts: 10,399 Trailblazer

    Hello,

     

    1. The order of upgrade is DIMM1, DIMM2 and DIMM3 slot (printed on the PCB).
      I think #1 and #2 are blue and #3 is black (difficult to see)
    2. Could you test with only the Crucial memory modules installed in #1 and #2?
    France
  • CrimsonFox
    CrimsonFox Member Posts: 14

    Tinkerer

    what's a PCD?

     

    I did finally figure it out simply by twiddling with them. The two new crucials go in the blue and black furthest away from the processor. The old kingston memory went in the blue next to those.

     

    The one closest to the processor was left empty.

     

    it didn't make sense but that was the only way it acknowledged 12 GB.

    using JUST the blue slots with the crucial gave me 8. using the 3 in other configs gave me 4.

    and if I left the slot furthest away empty the computer beeped angrily.

  • laurent_14
    laurent_14 ACE Posts: 10,399 Trailblazer

    PCB means Printed Circuit Board

    So DIMM:

    1. Blue <== Crucial
    2. Black <== Kingston
    3. Blue <== Crucial
    4. Black <== Empty (near the processor)

    You have a memory amount of 12Gb like this?

    France
  • RevoMaxx
    RevoMaxx ACE Posts: 458 Pioneer
    Answer ✓

    Important as you found out is the make sure they Pair are in the same Colors... But your sytem should be set up as stated below to work right. 

     

    Size     DIMM1     DIMM2     DIMM3     DIMM4

    2G         2G         N/A         N/A         N/A

    4G         2G         2G           N/A         N/A

    4G         4G         N/A         N/A         N/A

    6G         2G         2G          2G           N/A

    6G         4G         2G          N/A         N/A

    8G         2G         2G          2G           2G

    8G         4G         2G          2G           N/A

    8G         4G         4G          N/A         N/A

    8G         8G         N/A         N/A         N/A

    10G       4G         2G          2G            2G

    10G       4G         4G          2G           N/A

    10G       8G         2G          N/A         N/A

    12G       4G        4G            2G           2G

    12G       4G        4G            4G          N/A

    12G       8G        2G            2G          N/A

    12G       8G        4G          N/A          N/A

    14G       4G        4G           4G            2G

    14G       8G        2G           2G            2G

    14G       8G        4G           2G           N/A

    16G       4G        4G           4G            4G

    16G       8G        4G           2G            2G

    16G       8G        4G          4G            N/A

    16G       8G        8G         N/A           N/A

    18G       8G        4G          4G             2G

    18G       8G        8G          2G            N/A

    20G       8G        4G          4G             4G

    20G       8G        8G          2G             2G

    20G       8G        8G          4G           N/A

    22G       8G        8G         4G             2G

    24G       8G        8G         4G             4G

    24G       8G        8G         8G            N/A

    26G      8G         8G         8G            2G

    28G      8G        8G          8G            4G  

    32G      8G        8G          8G            8G

     

     

    Sorry if once posted it don't look 100% right but should be good enough to give you the right idea of what and how they should be placed. YOur slots should have DIMM1 DIMM2 and so on. 

     

    Hope this was helpful

    James

     

  • CrimsonFox
    CrimsonFox Member Posts: 14

    Tinkerer

    Nice chart thanks! altho it didn't totally answer the other question of...which one is dimm 1?

     

    From evidence I guess the furthest DIMM away from the processor is DIMM1 and that one is blue. That was the one that the initial stick was in. This of course goes against how everyone is telling me it SHOULD be.

     

    But that's how it is. 

    Cruc, Cruc, King, empty.

  • RevoMaxx
    RevoMaxx ACE Posts: 458 Pioneer
    Yes dimm1 is further away. Cpu out. Dimm4, Dimm2, Dimm3 and Dimm1 sounds like you got them worked out.. Sorry took a while to try get it lined up in that post. They are marked just hard to see

    James
  • acercc
    acercc Member Posts: 5 New User

    I have the same system.  I just got two 4GB Crucial sticks, installed them the same way you did, and up and running with 12GB of RAM in 5 minutes thanks to your posts.

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