@Jordanbg90 wrote:
Hello, filbert! I didn't know there is such a thing as matched pair sticks. The sticks i used were both Hynix 8GB; 1Rx16; PC4-3200AA with identical part numbers, so if completly identical sticks are not matched then i don't know what kind of sticks can be! Can you tell what exactly means matched pair RAM sticks and how can i find such?
Matched pair means two identical RAM sticks: same brand, model, size, timings. Manufacturers package sticks as matched pairs so the buyer knows they are identical. Otherwise, it's easy to buy same brand and size but end up with different timings that can cause incompatibilities.
If yours are identical part numbers, then I would think that they are they same.
You did not answer my questions in my first post. The only way we can diagnose issues is if users provide detail. I need to know if a set of matched sticks worked in your laptop. Also need to know if your stick works in either RAM slot and if the new stick works in either RAM slot, and if both sticks work in another laptop (you said the "service" checked everything and it all works, but unclear what tests they did).
You need to try the old stick in each RAM slot, see if it works in each. You need to try the new stick in each RAM slot, see if it works in each. That helps to narrow down whether there is an issue with one stick or one slot or whether it's simply two sticks not working together.
If you are installing the RAM yourself, be scrupulous about static avoidance. Whenever touching components or working inside a computer, wear a grounded wrist strap, also called anti-static wrist strap, ESD wrist strap, or ground bracelet. It's a cheap and sensible precaution. Rest the laptop on an anti-static mat or at least a reasonable alternative such as corrugated cardboard.
