Aspire a515-43 with 2666Mhz RAM upgrade

etjk
etjk Member Posts: 2 New User
Hi Acer community,

Recently I purchased an Aspire 5 (A515-43), and bought a Samsung 4GB DDR4 PC4-21300, 2666MHZ RAM to upgrade it with.

I had expected it to be a plug and play experience. However, after inserting the RAM, sometimes I get stuck at the windows loading screen, sometimes it manages to progress further.

For the times which I manage to load up, the additiona RAM seems to be partially recognized by the system, with the extra 4GB going under "Hardware Reserved".

I contacted the seller, and they shared that I may have a a older revision that does not support up to 2666MHz and can only go up to 2400MHz.

Is there anyway to circumvent this problem - e.g. reduce my 2666MHZ RAM to 2400MHZ in the BIOS? Or is there an easier fix to all of this.

Appreciate your help!


Answers

  • JackE
    JackE ACE Posts: 45,080 Trailblazer
    It should work fine. The 2666MHz module should automatically downshift to accomodate your mainboard 2400MHz capability. So remove the RAM module. Gently wipe its gold contacts with a soft cotton cloth moistened with rubbing alcohol. Then use a dry cloth to wipe any remaining liquid off module. Replace the module. Try it again

    Jack E/NJ

  • etjk
    etjk Member Posts: 2 New User
    Hi JackE, thanks alot for your response!

    I've reinserted the RAM, after cleaning the gold contacts with Alcohol. The laptop starts without any problem, but it still appears that all the RAM is going under Hardware reserved.

    Would you know how I can "release" the RAM from hardware reserved? 

    I took a pic of both RAMs, and they seem identical, both 2666V (seems like the seller might have been wrong)

  • brummyfan2
    brummyfan2 ACE Posts: 28,585 Trailblazer
    Hi @etjk
    Go to Start and type RUN, open RUN and type msconfig, move to Boot tab in the next window, highlight your OS and select Advanced Options, if the box for Maximum memory ticked, clear the tick, click Apply and OK, reboot and see whether it helps.