My old computer which i still use for some things was turned off and left off for about a good 2 weeks. it was unplugged too soo it wasnt connected to any electrical power at all. 2 weeks later when i need to use it again, i plug it back in and turn it on and it wont boot up. the power led turns yellow instead of green like it should and then windows wont boot and all the fans power up at a very high rpm . and they continue to spin loudly and theres no sign of even the dell splashscreen coming up. it sounds more like an airplane taking off then a computer thats how loud the fans are. i thought it was in standby mode and maybe it is but my usb keyboard is receiving no power so i cant do anything except stare at a black screen. anyone got any ideas on how to fix this issue?