Having problems with your Dell Dimension 8300 PC Desktop ?

My PC will not start my monitor or cordless mouse.

\015 A while ago my computer would start and then shut off after a few seconds. I remove the proccesor (chip)? and cleaned and changed the grease under it. It now starts....However it turns the green light on my monitor yellow and will not start it. It also will not run my cordless keyboard or mouse.\015

Answers :

That is correct. A Processor is a 'Chip'. Chip is a slang term for IC. Integrated Circuit. http://en.wikipedia.org/wiki/Integrated_Circuit

You did have the computer unplugged from the surge protector, and you did observe anti-static precautions, right?
Your body carry's Static electricity. Static, will silently fry out your delicate hardware components. You may not even see it, or feel it.
Your processor, is the most susceptible hardware component to static shock, in your computer.

Computer unplugged, case open. All you have to do is touch the metal frame of the computer case, to relieve your body of static. You get up for ANY reason, walk away, then return, you TOUCH that metal frame again.

Should you have followed the above anti-static precautions, then your problem is your power supply. Plain and simple.

Yes, I know the lights light up, the fans spin, and it sounds like the harddrive is spinning, but your processor isn't running.

All the lights for your computer use less than 1 Watt.
EACH fan uses 2 to 3 Watts.
The harddrive just sitting there spinning uses about 5 Watts.

Processors use 55 to 125 Watts! Depends on the processor.
Your power supply's Electrolytic Capacitors, inside the power supply are bad. The one's for the output stage.
When these 'Caps' go bad, they make a weak voltage power rail.
Your power supply doesn't have enough power to turn the processor on.

That's why it sounds like the harddrive is running. It's just sitting there spinning, because there is no processor to find the Boot record on the harddrive.

Solution? Just replace the power supply, and grin from ear to ear.
If as you say the pc now start's up, you it sounds like either there is a further problem with your graphics card, or monitor.

First thing would be to check the graphics card has not come loose, so open the side panel, and push on the edge of the graphics card, also make sure there is power to the graphics card or it also may not show an image on your monitor, if that does not work, you may need another PSU, best bet is to take it to a shop.

First i would try if you can another monitor on the pc before you do anything. let me know.
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