Problem with blinking lights on an old Compaq
I use a Compaq Presario SR1803WM. I bought it in March of 2006. I've had no real problems with the computer since then, but I noticed a troubling one this morning when I woke up. The green light on the front of my tower was continuously blinking, and the monitor light was orange. There was no noise from the tower at all (no fan whirring). I thought it might been in sleep mode, but nothing I tried with the keyboard worked. I held the power button in because that was the only way it seemed I could shut it off. When I tried to restart, the green light stayed green for a few seconds, and then was immediately blinking again. Nothing on the monitor but that vicious orange light next to it's power button.
So, I looked at the back of the tower to see if any connections were loose. None. So I shut if off with the power button one more time and turned it back on, still nothing.
So then I pulled the power cord from the back of the tower, and plugged it back in to see what would happen. Sure enough, I heard the fan kick in. But it slowed down, and eventually stopped. I unplugged it, and replugged it. The same thing happened again. So when I went around to the front of the computer, I hit the power button again. This time, it responded. The light didn't blink, it stayed on, and eventually windows booted up, and now here I am. I can hear, and feel air from the blower in the back of the tower. But I did notice one more strange thing.
There is another light below the power button on the tower. I've never it be anything but green until today. Right after the successful power-up, that light stayed orange, and blinked off and on for about five minutes. It has a little cylinder above it that I can't decipher what it means. I have scoured the internet for what all this might mean, but everyone else with a green blinking light on a compaq reports the one next to the power cord in the back. Obviously, that isn't my problem. So, is there anyone who may be able to tell me what went wrong, and if it's something I should worry about?