I've always had the power button on my HP ProBook 4540s set to hibernate the machine and it's always worked fine until now.
Recently I experienced what I'm sure was an overheating issue: after using the machine on a pretty thick table cloth for an entire day, I started getting blue screens intermittently, and on rebooting was met with PXE-E61 Media test failure, check cable
for half a second, followed by BootDevice Not Found
. I followed typical procedure - reseated drive, reset BIOS, ran HP's memory/HDD diagnostic tools (no errors were found). It didn't work at first, but luckily and randomly I was able to boot back into Windows much later. I also ran a chkdsk
and no errors were found.
Now, the machine seems to be stable again after not using the table cloth surface, but when I hibernate the machine, powering it back on gives the boot error. Shutting down is fine.
What could I have damaged that's making the hibernate function do this? Can I expect any future issues?
If I set the power button to shut down, is it safe to use it when lots of programs are open? (besides obviously losing any unsaved work)