Basically, I'd push the power button on my computer, and while it seems like the computer starts up since the fan begins to run, the BIOS doesn't beep and I don't get anything on my monitor that shows the computer starting up. It's like the computer is on standby, and I can't get it out of it. This also happened once when I actually did put the computer on standby and left it there for about an hour and a half. When I tried to resume my session, it wouldn't get out of standby, so I had to turn the computer off and turn it back on.
The time varies, but it sometimes stays in the "standby" mode when I try to start up the computer for as long as five minutes. After that, the BIOS would beep and the computer would start normally. I already tried resocketing everything in my computer, thinking that the problem lies in the interior, or maybe I missed something. I'd like to know the source of this problem and how I can fix it.
OS: Windows XP
BIOS: American Megatrends, Inc.
Thank you very much for your help.