Martro

Hi folks. Please can I ask for some help. I am the (not so) proud owner of a 3 year-old DELL XPS M1530 laptop. Unfortunately, after having a Unisys engineer visit my house to repair a simple problem with the media control strip, he managed to leave my laptop completely non-functioning - it wouldn't even post!! The machine is out of warranty, but in trying to correct the problem he'd unwittingly caused, the engineer returned the next day to replace the motherboard, the processor and the memory DIMMS. But, STILL the laptop won't even post! After two further visits (and another set of replacement motherboard/processor/memory) the darned thing still doesn't even post and now the engineer has given up on it, saying there's nothing more he can do. Can any of you clever folks suggest what the problem might be and what else within the laptop could be at fault/changed? I should add that the hard drive has at all times been removed from the laptop, as I didn't want to put my data at risk and was told the hard drive doesn't need to be present to at least boot the laptop? Anyway, I'm certainly NOT a 'techie' and would love some help if you'd all be so kind.