Question about Dell XPS 200 PC Desktop

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Power light blinking yellow after sitting a while

After computer goes into stand by mode sometimes the computer will not come back on, and I see the power light continuously blinking yellow and will not go back to green. I have to restart the computer everytime this happens.

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  • kcbillings Nov 03, 2008

    i have the same problem with the blinking yellow light took the batterie out but the system will not boot??

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Unplug computer, disconnect all usb/monitor/internet, open it, hold power button until green led on the inside on the motherboard turns off, pop out the BIOS battery (looks like a big watch battery and use a small flathead screwdriver to depress the spring lock on one side), plug in computer, hold power button for about 20 seconds (must reset BIOS or something), let up on power button, wait 10 seconds and push power button. The computer should turn on. Wait for it until activity seems stable (1 min. or so). Push powerbutton to shut off.

If this has worked you have proven that it's not the power supply (it turned on).

Go buy a new battery (CR2032 3 volt). Unplug computer, open it, hold power button until green led on the inside on the motherboard turns off, pop in new battery, plug in (you should notice the power button blinking amber again), hold power button until it stops blinking (about 20 sec....again must reset BIOS or something), wait 10 sec., push power button. the computer should turn on. Wait for it until activity seems stabe (1 min. or so). Push powerbutton to shut off.

Now, close case, plug in all usb/monitor/internet/etc. Power up computer. You'll get an internal floppy drive error. Push F2 (maybe F1) to get into the BIOS settings and go to "drives" and turn off the internal floppy. Save and exit. The computer should boot properly now.

This seems to be a big problem with the e510, my theory is that this one small battery is the root of most of these failures (as these computers usually fail after 1-2 years), not the power supply or the motherboard (heck, when you replace the motherboard it comes with a new one of these batteries...a several hundred dollar piece of hardware, with a $5 battery that will actually fix it).

Posted on Oct 11, 2008

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Posted on Jan 02, 2017

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1 Answer

I have a Dell Dimension E521. When I cut the power on everything comes on including the monitor, but the monitor will stay black. It does say something about power save hit any button but the screen


A solid green light means the computer is operating normally.

A solid yellow light indicates the power supply is operating normally but the computer is not processing data.

This could mean there is a problem with the CPu or another component on the motherboard.


((A blinking yellow light indicates the power supply is receiving power from the wall, but not functioning properly.
This generally means the power supply itself is bad and should be tested or replaced.))


A blinking green light means the computer is in standby mode.

You should consider visiting Dell Support and downloading the manual for your

your Dell computer. So use the LED power light codes if your Dell computer has them.

hope this helps

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It help diagnose problems with your computer

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A solid yellow:- the power is operating fine but your computer not processing data. This could mean there is a problem with the CPU or another component on the motherboard.

A blinking yellow light: power supply is receiving power from the wall, but not functioning properly. This generally means the power supply itself is bad and should be tested or replaced.

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During when does your computer shutdown? Please check the diagnostic lights at the back as well which ones have light on it during the time it would shutdown.

Since you said that the light is blinking yellow it just says that your power supply is running outside its normal operating range. So most likely you would need a change of power supply. Maybe a higher wattage would be better.

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So why do you need the computer in stand-by mode anyway? My computers are either on or off. Off saves power and hardware.

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Check the display cables , and if you have one test a different monitor on your computer.

If this is not a sceen problem, then it is an internal fault possibly the motherboard.

Try first leaving the PC power cord unplugged for ten, fifteen minutes and check if PC restarts afterwards.

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