NO DISPLAY IN DESTOP, CPU FAN IS WORKING , - Computers & Internet

This could be a dead cpu.

It may be just that the fan needs to be replaced.

More likely is that the computer cpu is overheating and the motherboard is ramping up the cpu fan speed to try to cool it, hence the high fan speed and consequent noise. This usually happens when the heat sink is clogged with a lot of dust. It could just be that the fan heat sink came loose.

It may be that it's just a noisy fan, in which case replace it with one that doesn't make as much noise.

hi

are you saying the fan is not working ? if that's the case, you need to replace the fan.
get the service tag # located on back of your desktop PC, go to this link below, place service tag in appropriate box . it will give you part numbers for the peripherals of this computer. locate the fan and purchase replacement.this is all you have to do. DO NOT TURN ON THE COMPUTER UNTIL THIS FAN IS REPLACED, or you will damage the mainboard and/or CPU.

http://search.dell.com/results.aspx?smh=sup&c=us&l=en&s=dfh&k=XPS-420%20&cat=sup

Hi friend.

Your monitor cable not attach properly. you need to check your monitor cable in your CPU. Second thing ..you need to check control panel...display setting....Destop theams..change it..then you will see the results

disconnect power, remove panel from side, unplug fan, remove 4 screws and reverse steps for re-installation.

I believe it to be a CPU problem. Ram problems are usually 3-4 quick beeps. Cpu is usually over and over beeping.

Robert was right make sure your computer is unplug from the power strip. now check the power supply cable to the mother board, then check the power cable to the harddrive, and then the DVD.once you put the power cable back into the computer you should get the power supply fan should come on, and the cpu fan should come on.

Next once you hit the on/off switch and green light should come on.

have you thought about changing the battery on the motherboard, also checking that the fan on the cpu is seated properly with enough heatsink paste as both these issues will stop the pc from booting

At fist power off, open the cabinet and carefully open the RAM and
clean the RAM pin as well as RAM slot. Again put the RAM on it slot. Your problem may be solved.

remove all hardware except RAM n CPU and then try it if the system gives you a disply then add all hardware 1 by 1 and keep checkin this way you can find the problem with the harware compatibility if the system wont disply then check the mobo for RAMs and CPU respectively if the problem presists then you have the BAD BOARD.-