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Hello guys,I have LATITUDE E6420 laptop (i7-2620M, 8GB DDR3). I wanted to replace HDD with SSD. I bought Kingston A400 240GB SATA III SSD. I changed my bios, sata controller to AHCI (it was on RAID on), and booted my USB in UEFI mode. System was installed on SSD, but after installation, my laptop won't find SSD, it says something like there is not bootable device. I saw someone already told that it can be mechanical problem, because of SSD dimensions, but my laptop sees SSD in instalation menu. Does someone know what can i do? P. S. I upgraded BIOS to A25 version. Thank you all!
DELL E6420 SSD problem