Hello,
My xps 14z (l412z) can't boot in BIOS. When I press the power button I can hear it only beeping 4 times in a row and it does not start even BIOS. I checked in the internet and found that this can be issue related to the RAM or the DIMM slots. I opened the laptop and tried with only one of the memories, then with the other one, I changed their places and didn't succeeded.
I also tried the RAM plates on a different laptop and they work fine.
Since I am in a foreign country for 2 weeks I don't have time to leave it here for a repair, so I would like to hear from you some other ideas to try instead of waiting so much time for a specialist to see it.
P.S. If it is not the DIMM slots/RAM plates, I guess it should be faulty motherboard. Should I think about a new one? It is a shame that this computer surrendered just an year and a half after I bought it. I have never had BSOD's or any other problems with it.
Regards,
Martin