Now everything is solved thanks a lot for sticking with me for this long conversation
Besides, you should now have a clearer understanding on how things work regarding RAM and the maximum of systems (without overclocking).YupNow, I'm getting both 2666Mhz and 2400Mhz RAM cheaper than 2133Mhz RAM. as they all are going to downclocked to 2133Mhz Shall I go for 2666Mhz or 2400Mhz getting both at the same price under 40 dollars at Amazon?
GajalShankar said:Understood but what if I installed RAM let's say having more CAS Latency it might not be able to work with my profile as it doesn't match the timings only, in that case, I have to return?
They have to match too... I explained a bit more in detail in the guide because there are all sort of things that can be the source of incompatibilities.But in your case, knowing the stick you have has profiles for running at CAS 15 and 16, those are the ones you want at 2133 MHz. What makes it hard to buy a single stick to complement another that is going to be downbinned is that profiles at lower speeds aren't specified in their spec sheets.For example, you mentioned two Crucial sticks, one at 2400 MHz and another at 2666 MHz. I'm quite sure they both can run at 2133 MHz too, really, but no spec of them lists the profiles at those speeds.That's why I was interested in knowing the full info Thaiphoon is able to reveal about the chips themselves, because they'll be posted and anyone in your situation would also benefit from it.EDIT: Just in case, the whole guide about RAM upgrading was here: https://community.acer.com/en/discussion/608352/guide-how-to-find-out-if-you-can-upgrade-the-ram-and-which-one-you-need
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