RE: e4310 bios
Thanks for writing to us.
Really sad to know the system is not posting now.
Usually upgrading to a wrong BIOS will lead to a motherboard failure.
The only one steps you can try is to remove the memory modules and then try with one module at a time.
If its still the same, then the motherboard is faulty.
If the system is under warranty, Please click my DELL-username and write me a private
conversation with the service tag and your contact details(Name, Phone#, Address and Email). If
there is no warranty, then you could contact our team to get a quote for a paid service call -