Monitor will not wake up from sleep mode

[Bigk825]

I have a Dell Studio XPS435 MT running Windows 7. For the past six months I noticed that when waking the computer from sleep mode, occasionally the monitor would not wake up and I would have to reboot. It got worse and worse until now it will never wake up without rebooting. I also noticed when I reboot, if I don't wait a few seconds for the computer noises to stop and immediately press the power button; the computer starts beeping loudly and nothing works. I have to manually shut it down and wait about 30-40 seconds to reboot. I have tried every one of the suggestions on these posts but nothing helped.

 

[Pauly]

Regards the monitor not sure what to suggest

The series of beeps you are hearing maybe a mobo error code

Often mobo will put out a series/combination of long/short beeps identifying an error, listen to the beeps next time you hear them and check your manufacturers www for an error code list