- Oct 4, 2017
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My X220 came with a 4 GB DDR3L 1333 MHZ Hynix memory stick. I bought two memory sticks that differ in brand, but are both DDR3L and 1600 MHZ (Samsung and SK Hynix). I removed my original RAM stick and placed the two of them inside, only to see that the BIOS wouldn't load and to hear the 1-3-3-1 beep codes. So then I tested to see if they would work individually, and the SK Hynix works but only for a brief period of time before my computer crashes itself and shuts down. I thought that maybe it could be the BIOS, since I didn't have modified version 1.43 installed into the system. I proceeded to download the updated BIOS version and the modified one afterward. Thinking that this would possibly fix the issue, I still receive the same problems. I'm not sure what the issue is, but it's causing me a headache and I don't want to stay stuck with 4 GB of RAM for the time that I'll have this machine.
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