I have an HP EliteBook 2170p laptop and runs on Windows 7. My laptop was working fine, but while I left my laptop on sleep mode and came back, my screen wouldn't turn on, the rest of the laptop was working but my screen wouldn't come on? Does anybody know what might be wrong or if there's a solution to it? I shut it down and turned it on again but I just get my caps lock and number lock blinking 3 times and the fans start making a noise.
The unit might be toast. There isn't much that can be done if the screen doesn't work. If you try to connect an external monitor, does anything appear on it? If not, given that it is running Windows 7, I'd strongly consider replacing it.
Memory LEDs blink 3 times Module error not functional Reseat the memory. See the section Reseating memory modules in a notebook for more information. If reseating the memory does not resolve the problem, try replacing the memory modules.
Graphics LEDs blink 4 times
LEDs blink 5 times General system board failure
BIOS LEDs blink 6 times BIOS authentication failure
