My laptop turns on but has no display and gives the error code indicated in the title. I tried a hard reset, reseating the memory module, connecting an external display, and the whole Windows plus B startup key press, all to no avail. The code seems to indicate the memory is bad (according to HP's site), but I have no compatible RAM on hand to test. My question is, before I buy a new stick of memory, is this 100% the problem? How accurate are these error codes? I would hate to buy it only to find out the entire motherboard needs to be replaced or something. And is there anything else I could try?