I am having trouble with an HP Compaq. The following is the information off of the computer tag.
HP Compaq dx7200 slim tower
HP Compaq dx7200 ST Base Unit
Here is the problem. When the computer have been inactive for a while it boots and works fine for several hours. Then it starts acting up. Sometimes it will freeze. Sometime a blue screen with and error code appears.
When this happens and the computer is turned of and rebooted the computer seems to boot but the monitor never shows a welcome screen or boot screen and stays black. The power button on the monitor remains red, it will turn blue when the computer boots. The computer light and the cpu light will be green.
Then if this is tried a time or two when the power button on the computer is pressed the computer light will start blinking red and beeping will be heard. Then when the power button is pressed the red blinking light will go out and when the power button is released it will start blinking again with the beeping. To stop this the power button has to be pressed, held a second or two, and released several times before the computer will stay off.
Computer is running W7, SP1
I have checked the computers internal battery, good. I have replaced the HD and freshly insalled the OS. I even bought a new monitor but not of this has corrected the problem.
Any suggestions as to what could be wrong with the computer. Thanks.