Question about Dell OptiPlex GX270 PC Desktop

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Dell gx270 will not power up

When on switch is pressed, both fans run momentarily, then shut down. When the small plug is removed from the motheroard, the power supply fan continues to rus

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Motherboard is shot

Posted on Dec 10, 2008

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Gx270 tower mother board amber LED solid on


If the fan is not spinning this can be the issue ...but it can also be the motherboard itself ..if you have the possibility try to change the fan ..cause if it fails to start the computer will also fail cause the cpu it will shut down the system instantly if it has no cooler working ..(gets to the shut down temperature in one sec or so ) If it seams that it is trying to start ..but , like I said , it shuts down ..just try to change the fan ...but it may be a issue with the power supply or the motherboard as well...

Dec 18, 2011 | Dell OptiPlex GX270 Small Mini-Tower...

1 Answer

Fan stop working but computer turns on after a couple of mins it shuts down gx270


fan stop working but computer turns on after a couple of mins it shuts down gx270
try
cleang ram
repair os

Feb 12, 2011 | Dell OptiPlex GX270 PC Desktop

2 Answers

Pressing the start button the fans run and the keyboard lights momentarily after 2/3 seconds the fans stop the computer does not start Dell Optiplex gx270 I have the same problem with Phillips MT2400


first, try to replace keyboard. if not work try reformat the system and if still not work, there is a problem in mainboard maybe short circuit then replace mainboard.

Oct 10, 2009 | Dell OptiPlex GX270 PC Desktop

1 Answer

I have a dell GX 270 that has orange light on mother board, shuts down randomly, seems hot, and says Alert! System battery voltage is low. The fan is running but doesn't kick out much air..


The battery message means you need to change the battery on the motherboard, it looks like a coin about the size of a nickel. Which fan is malfunctioning, the power supply fan, the case fan, or the processor fan?

May 19, 2009 | Dell OptiPlex GX270 PC Desktop

2 Answers

Dell OptiPlex GX620 starts up then shuts down repeatedly


Try this: remove the DMOS battery and unplug the on/off switch plug. It's the one in the corner near the power supply. To be sure follow the cable from the front on/off switch board on back to this plug. Then plug the A/C cord in, if the system boots up fine, then replace the front panel power on/off swith board. Naturally you will not be able to power off the computer using the power switch (since we unplugged it), so you will have to just pull the plug. Hope this helps. Joe

Apr 24, 2009 | Dell OptiPlex GX620 PC Desktop

1 Answer

When the power on switch is pressed, computer powers up momentarily, then shuts down. Both power supply fans run for only an instant.


I've had the same problem with another computer..
The simple solution, instead of buying and installing a new internal fan is to place the computer on its side and put a small electric clip-on fan directly over the vent. Turn on the clip-on fan and then start the computer; the clip-on fan should generate more than enough cooling so that the computer doesn't overhead.

Two notes:
The clip-on fans usually have the clip on the back of the fan so you can clip it to a bed headboard or to a small pole or shelf; the fan is about six inches across, and they sell at Target, Wal-Mart, Amazon.com, etc., for anywhere from $15 to $25, but you can usually buy them at Big Lots or similar stores for about $5 and you can sometimes find them at the Dollar stores.

You can use a larger fan, but a larger fan will generate too much wind. You want to use an electric clip-on fan and not a battery operated fan because a battery operated fan won't generate enough wind/cooling.

And, if the problem ends up being more than simply a cooling problem, you can at least use the clip-on fan later.

Let me know if this works.

XMinusOne@gmail.com

Dec 10, 2008 | Dell OptiPlex GX270 PC Desktop

2 Answers

Dell gx270 power switch


I don't think you need a new switch. The power "switch" on the front of computers today is a momentary action push button switch. Not a locking or clicking switch as older computers used to have.

Many of today's computers, including the gx270 / gx280 computers from Dell are really always on. You can see the green or yellow LEDs on the motherboards glow when they are "off" (like a sleep mode).

They are in a "sleep" mode until you push the power switch, which sends a momentary signal off to the motherboard to fully power up and turn itself "on".

I think you have something else happening here. When the system tries to power itself up, and detects a severe problem, it will try to automatically turn itself off.

The problem could be a bad motherboard, power supply, memory or processor. It could even be a failed hard disk that is drawing too much power (shorting out) from the supply.

If you had done something to the system, like move it or open it up for an upgrade, etc.. Look again at all the internal connections, and make sure there is nothing rattling around inside that might also be causing a short.

You could try removing all the PCI cards in the system, removing the power and data cable connections from all the disks (Floppy, Hard Disk, CD/DVD) and see if the bare motherboard (with CPU and memory) will boot by it self. If it does boot, then the problem was somewhere in those items and you can replace them one at a time until you find the problem, or if it all works again then it may have been a loose or bad connection.

If you have another machine available, you could try switching the power supplies and seeing if that is the problem.

Good luck!

-Chip

Nov 21, 2008 | Dell OptiPlex GX270 PC Desktop

3 Answers

Loud "jet engine taking off" type sound


If you changed out the power supply then the only other device that could be making that noise is your CPU cooling fan. To be sure, open the case and disconnect the CPU cooling fan plug from the motherbrd (MAKE SURE POWER IS OFF) and see if the noise stops. Don’t worry about the “Fan Failure Error” when you turn on the computer. Just hit F1 to continue. Don’t leave the computer running without the fan plugged in longer then necessary. After tying this procedure, please contact me for further diagnosis.

Oct 16, 2008 | Dell OptiPlex GX270 PC Desktop

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