Having problems with your Compaq PC Desktops ?

Pc keeps shutting down when trying to power it up

\015 I'm having trouble getting a response from the cpu. Everytime I push the power on button it powers off but the processor is still running. Well the fan on top of the processor is still running and the fan to the power pack supply. The monitor shows nothing but changing the brightness or settings to it. In other words it's like the cpu isn't even hooked up to it. I don't know if the motherboard has gone bad or what. I thought I would ask you Guru's if yall know what to do. The cpu is a compaq presario s4020wm desktop.\015

Answers :

Hello, its the same thing. Almost everytime when I clean my desktop of dirt and the memory stick got moved. When I power up the unit and only the fan and led comes up.

My first suspect will always the memory. I will just make sure to clean the memory connector using pencil eraser method., reseat and power up again.

In your case I suggest to clean its connector to free it of dirt (varnish like coat on the memory connector). If it still freeze, check the memory if one is already failing.
Your CPU has guards, called the Power Supply Fan and the CPU fan and heat sink. If the CPU is registering as overheating thent he fan stays on and the CPU does not come on for its own protection...so either the fans are not providing enough cool air or the wrong signal is being transmitted which could mean a bad CPU.. This could be from clogged up air vents; so what you need to find out is what the tempature of your CPU is: there are two ways; if your computer is fairly new then in BIOS there is a PC Health Status Menu; it will tell you the lowest and highest temps of your CPU. Third-party software is better though as it will give you a real time tempature; find the program "hwinfo" it is freeware (don't get one where you have to pay cause you don't) and download it to your computer. Run it and it will show you anything you need to know about your computer including the temp. of your CPU..try that first and let me know what happens...good luck
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