View original (French)

RAM upgrade

Pimz -  
gugu01 Posted messages 15669 Registration date   Status Contributor Last intervention   -
Hello everyone.
I have an Asus x751md and I wanted to upgrade the RAM. My original RAM was 2GB.

So I bought 8GB Crucial DDR3L 1600 SODIMM RAM recommended for my PC on their website.
After installation, my computer keeps rebooting in a loop. The RAM is not faulty as it works on another PC in the house without any problems.

Based on the advice of a computer repair technician in my town, I tried 8GB Corsair DDR3L 1333 RAM. He thought that the BIOS might block anything above a certain frequency.
The same problem was observed with this one too.

In parallel, I tested another 2GB 1600 RAM which worked without any issues.

I would like to understand what the problem is, if I can fix it and how.

Thank you in advance,
:)

7 answers

  1.
    MaxGix Posted messages 5389 Registration date   Status Contributor Last intervention   2 371
     
    Hi,

    you should contact Asus to confirm this because the information is not available on their French site, but it is possible that your PC does not support 8 GB RAM sticks;
    It’s unlikely to be a BIOS issue as the different versions do not address any problems related to RAM.

    If you have the option to test 4 GB sticks...

    ++

    --
    If the issue is resolved or a solution is found, please indicate it,
    it's always helpful for the community. ;-)
    0
    1. pimzy
       
      Thank you, I'm going to try that at the end of the week :)
      0
  2. epango Posted messages 37195 Registration date   Status Member Last intervention   Ambassadeur 4 270
     
    With this reference, I can't find a model with 2GB of RAM, but with 4GB. Since the maximum supported RAM is 8GB, that would mean the maximum RAM per memory slot is 4GB. This would explain why the 8GB stick doesn't work.

    --
    Misnaming things adds to the misery of the world (Albert Camus)
    0
    1. pimzy
       
      Hello, thank you for the response. Indeed, after checking it is 4GB, I meant to say 2GB soldered and 2GB removable. Sorry :/
      0
  4. dany311 Posted messages 13341 Registration date   Status Contributor Last intervention   2 131
     
    Hello

    on the ASUS website, it states
    DDR3L 1066 MHz SDRAM, 4 GB, (2 x 2 GB)

    --
    today, I am doing nothing, if I haven't finished, I will continue tomorrow.
    0
    1. pimzy
       
      Hello, thank you for the response.
      Indeed, after checking, it's 4GB total, I was mistaken, I meant to refer to the 2GB soldered.
      0
    2. epango Posted messages 37195 Registration date   Status Member Last intervention   4 270
       
      The likely reason it's not working is that your phone's motherboard doesn't support 8GB sticks. You need to add a 4GB stick.
      0
  6. gugu01 Posted messages 15669 Registration date   Status Contributor Last intervention   4 702
     
    Hello,

    Everything is true but only one truth corresponds to your PC.

    First crucial result:
    > gives 12 GB max
    > originally 4 GB soldered
    So if you say you have 2 GB base, it wouldn't be your PC.

    First manufacturer result:
    DDR3L 1066 MHz SDRAM, 4 GB, (2 x 2 GB)
    That doesn't really help us, it's vague

    As Epango said, we also find 8 GB max

    Motherboard/processor mounted on this range:
    X751MD Motherboard rev2.0-N3540 = 4 GB soldered so corresponds to the 12 GB max (in 1600)
    And Intel gives for the N3540 processor, 8 GB max in 1333, so ...
    or
    X751MD motherboard rev2.0-N2830U = 2 GB soldered so corresponds to the 8 GB max (in 1333)
    or even other configurations.
    (High chance you are on 8 max in 1333 in either case.)

    You need the exact model of the PC (and the processor if possible) to know ???

    (PC reference like ASUS X751MD-TY021H and it would be good to have the CPU ref too, N3540 or N2830U or ...)

    Moreover:
    I would say that if the PC was sold with only 2 GB you might have a 32-bit Windows
    Which would mean that only 4 GB max would be managed by Windows.
    For example: whether it's 8 or 12 max in place, only about 3.90 will be used by Windows.
    If you are on 32-bit, you would need to reinstall Windows in 64-bit to take advantage of all the RAM.
    (the 8 or 12 depending on what it will be)

    0
  7. Pimzy
     
    Hello everyone, thank you for your responses.
    I actually made a mistake in the wording; I meant to say that I had 2 GB soldered and 2 GB removable (it is indeed a 64-bit), which, according to your responses, would correspond to the maximum of 8 GB (and seems to fit the problem).

    As for the PC reference, I don't understand where to find it; I thought X751MD was the complete reference, but I can't find more details either in the system information, on the PC (physically), or in the information retrieved from CPUZ (other than a small 1.0 next to the reference).
    Regarding the processor, it's an N3530.

    Well, in any case, we will test with a 4 GB 1600 when it arrives; from what I understand, it should work, especially since the 2 GB 1600 was working well.

    :)
    0
    1. gugu01 Posted messages 15669 Registration date   Status Contributor Last intervention   4 702
       
      Yes, you would have this model
      https://www.ldlc.com/fiche/PB00169439.html
      8 GB max at 1600 is accepted by the motherboard and the processor can use a maximum of 8 GB at 1333.

      (For the sites that stated 12 GB max on certain setups, I doubt that it's accurate.)
      0
  8. Pimzy
     
    Hello everyone,

    I'm getting back to you after testing a 4GB DDR3L 1333 RAM and it still doesn't work.

    Do you have any other leads for this issue?

    Thank you in advance :)
    0
    1. gugu01 Posted messages 15669 Registration date   Status Contributor Last intervention   4 702
       
      a reference for this 4 GB RAM stick?

      and also for the 2 GB one that worked well?
      0
    2. Pimzy
       
      4go : G.Skill F3-1333C9S-4GSL DDR3L 1333 CL9 1.35V


      2go : SK Hynix 1Rx16 PC3L 12800 11 13 C3 HMT425S6AFR6A-PB No AA 1437

      Here it is
      0
    3. gugu01 Posted messages 15669 Registration date   Status Contributor Last intervention   4 702
       
      The one you installed has a lower frequency, so it will also run the other one at a lower frequency, but it should have worked.

      You should get the same brand and the same frequency as the 2 GB, but in 4 GB.

      However, from what I see, the Hynix reference given corresponds to a lot of 2 x 2 GB.
      Do you have two slots on this motherboard?

      Personally, I don't see ...
      ----------------------
      On the Asus side, it's disappointing, no real information ... Their customer service is really mediocre if not non-existent.
      (From pro to pro, they seem good, but for individuals, they are amateurs)
      0
    4. AluMinioume Posted messages 3107 Registration date   Status Member Last intervention   582
       
      Hi,
      Just in case, there might be a problem with low or high density sticks (double-sided PCB, memory chips distributed in 8x512 Mb on one side instead of 16x256 on both sides...)
      0
    5. Pimzy > gugu01 Posted messages 15669 Registration date   Status Contributor Last intervention  
       
      Hello,
      Thank you for your replies

      I will try to find one of the same brand and frequency, ideally with the memory chips on one side because the 4GB one was double-sided.
      0