Hey guys. Sorry for the long post, I want to give as much info as I can.
I bought a laptop some years ago, it's a Samsung NP300E5A-S0RTR, with an Intel Core i5-2450M, Nvidia GeForce GT 520MX, 6 GB RAM, 1 TB HDD, etc. It was decent and good enough for that time, but then I moved on to a desktop PC.
I thought about salvaging the HDD and replacing it with an SSD, so I bought a Kingston A400 120 GB, the cheapest one at the time in Hungary. When I was on installing Windows 10 fresh, it didn't see it at first, and when it did, it formated/installed really slow (even slower than it's original HDD).
After some time, and retries, and messing in the BIOS, I finally managed to put Windows 10 on it, it works well and the speeds are good as expected.
I thought this was a one time only problem, but no. Whenever I turn on the laptop, it doesn't boot into the SSD, I check in the BIOS, it doesn't show up, and I noticed that the screen also flickers a bit whenever I was in the BIOS, which never happened with the HDD. If I keep turning it on and off and changing the BIOS settings, mainly ACHI mode and SATA GEN3 mode, after around 15 minutes, it gives in and boots into Windows in the end and it works just fine. If I turn it off and on then, it boots fine. If I leave it turned off for a couple of hours and turn it on, it starts doing the same problem all over again until I finally get into Windows another 15 minutes later.
This is very annoying, and I don't know what could be the problem. It never does this whenever I switch back to the HDD. I checked the SSD on my desktop, it shows up, I can format it rigth there, it shows no complication.
I bought a laptop some years ago, it's a Samsung NP300E5A-S0RTR, with an Intel Core i5-2450M, Nvidia GeForce GT 520MX, 6 GB RAM, 1 TB HDD, etc. It was decent and good enough for that time, but then I moved on to a desktop PC.
I thought about salvaging the HDD and replacing it with an SSD, so I bought a Kingston A400 120 GB, the cheapest one at the time in Hungary. When I was on installing Windows 10 fresh, it didn't see it at first, and when it did, it formated/installed really slow (even slower than it's original HDD).
After some time, and retries, and messing in the BIOS, I finally managed to put Windows 10 on it, it works well and the speeds are good as expected.
I thought this was a one time only problem, but no. Whenever I turn on the laptop, it doesn't boot into the SSD, I check in the BIOS, it doesn't show up, and I noticed that the screen also flickers a bit whenever I was in the BIOS, which never happened with the HDD. If I keep turning it on and off and changing the BIOS settings, mainly ACHI mode and SATA GEN3 mode, after around 15 minutes, it gives in and boots into Windows in the end and it works just fine. If I turn it off and on then, it boots fine. If I leave it turned off for a couple of hours and turn it on, it starts doing the same problem all over again until I finally get into Windows another 15 minutes later.
This is very annoying, and I don't know what could be the problem. It never does this whenever I switch back to the HDD. I checked the SSD on my desktop, it shows up, I can format it rigth there, it shows no complication.