HP Media Center Computer

First, try and take out the battery and start the computer with just the power adapter. If the power adapter is still blinking, replace the power adapter. If the computer turns on with just the power adapter, replace the battery.

If the battery status light rapidly flashes amber, the battery may be defective. Purchase a replacement battery from Dell.

If the power supply status light flashes, the power supply may be defective. Purchase a replacement power supply.

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Go to HP Support & Drivers 1

Try replacing the power supply, a blinking green light usually means the power supply is missing an output voltage. If you do that and you still get a blinking green light then the motherboard will need to be replaced.

try to replace the power supply. and check the power button.

Are you sure it's the power supply?

Most modern power supply units are of the ATX type. Brand should not matter. Your PC used a 300 watt power supply when new. You can purchase a power supply with more output (watts) if you like, but not less. You will have to purchase from a computer specialty store most likely - take the dead one in and compare it side by side with the new one before buying.

Try opening the sides of the computer and running the computer, If it still freezes, look inside and see if any of the fans turn off at any time, if that Happens try pushing it to make it go, if that doesnt solve it, try replacing the fan. Buy the fan at TigerDirect.com

You may need to replace the cmos battery, its a cr2032 3v button cell
Make sure all your expansion cards and memory are reseated.
Make sure all cables are reseated.
your power supply could be bad

If that doesn't work try this


Here is my fix for the dell dimension 4400 amber light problem. It works!
replace cmos battery.
then unplug power cord form wall about 5-10 secs.
then plug it back in, wait 5 secs.
If amber light comes on, press and hold power button until it goes out.

(with light out, press and hold power button while amber light comes on and goes off again holding power button 2-3 secs after light goes out.) repeat whats in parenthesis until computer turns on
it should only take about 6, 7 tries.

After the computer boots, you may want to setup cmos or boot into windows.
After you shutdown, unplug power cord for 5-10 secs then plug it back in.
Press and hold the power button, computer should come on.
I found that's the only way to turn on the computer.
If you shutdown and don't unplug power cord the computer may not boot, mine didn't.
Strange I'd say

A+ Technician

if you know on how to replace the power supply then do it, if not proceed to bring the computer. or if you have friends can do this, then much better.

replace the power supply-from a computer store, should be no more than 30 dollars

hi friends, unpluug the power chord from the wall jack after that press and hold the power button in the front for about 15 seconds, connect the chord back in and try it. if it does the same then look at the rear side of the cpu box (where the power chord goes in and look for a small fan inside the power supply box, it has to be spinning). if not then the power supply (smps) has goen bad. now if the fan is sipnning try disconnecting all the extra periferals eg printer and stuff, still nogo then try opening the cpu box (reffer owners manual). take the RAM out and try to power up the system, if it starts beeping like beep ...beep... peeeep... then turn it off put the ram sticks back in and it should work fine...
NB:-for the owners manual check this out: http://h10025.www1.hp.com/ewfrf/wc/manualCategory?cc=us&dlc=en&product=470506&lc=en&jumpid=reg_R1002_USEN