On power up, I hear 2 quick beeps, the fan starts, then quiets down. Steady yellow light on the power button, no LEDs lit on the back, (possible pre-BIOS failure??!!). Had the computer open all afternoon before this happened. Wanted to install a new heatsink fan assembly, but Dell sent me one missing the 'thermal grease'. So I cleaned the old fan and reinstalled it with some difficulty. I also tried to install a new video card, but Dell sent me one that doesn't fit in my computer. With Dell tech support on the phone, I tried to fit the new card in somewhere for quite a while before he concluded it wouldn't work. Pulled out/reinserted a couple slot fillers, pulled out/reinserted the card cage several times. I've rechecked everything inside a couple times, but still get the yellow light, black monitor, keyboard and mouse don't work. HELP! (btw, my kitchen faucet is dripping furiously, even with the water supply shut off. Any suggestions for that would also be appreciated.)
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Re: similar problem with Optiplex GX270
you did mistake when you connected the fan if the processor is not get the normal temperature it wont start to work . you have insert the fan correctly or fix a correct fan what they give for you to your computer from dell. any questions forward to fixya
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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...
I would suspect that the power supply has gone bad and has to be replaced. A simple task, really.
5 beep error means that the waste ink tank is full. You can reset the counter to make it print by doing the following: You have to be exact. If you make a mistake in any of it, just go back to the beginning and start it all over.
1.Unplug the power cord from the printer
2.Hold down BOTH the POWER and RESUME button at the same time and then plug the power cord back in. Keep holding down the buttons until the printer finishes its powering up noises.
3.After the printer is quiet, release the POWER and RESUME buttons. Then hold down the RESUME and CARTRIDGE buttons at the same time with one hand, and press the POWER button with the other. KEEP HOLDING DOWN the RESUME and CARTRIDGE buttons until you hear 2 beeps. They will come quickly together and one beep will be longer than the other. Listen carefully, as they are not very loud.
4. Once you hear the 2 beeps, release both buttons.
5. After both buttons have been released, then press the CARTRIDGE button 15 times. You will hear a beep each time it's pressed.
6. After you finish pressing the cartridge button 15 times, then press the RESUME button one time. The printer will beep and shut off.
7. Turn the printer back on by pressing the POWER button. The printer will work fine now. The waste ink will have been reset to 50% full.
When the DELL™ logo appears, press <F12> immediately.
NOTE: If you see a message stating that no diagnostics utility partition has been found, run the Dell Diagnostics from your Drivers and Utilities CD. If you wait too long and the Microsoft® Windows® logo appears, continue to wait until you see the Windows desktop. Then shut down your computer through the Start menu and try again.
When the boot device list appears, highlight Boot to Utility Partitionand press <Enter>.
When the Dell Diagnostics Main Menu appears, select the test you want to run.
I think that it is most likely that this is a power supply going bad. These can be purchased cheaply on eBay (make sure the picture matches). This replacement is moderately technical.
The other good possibility is a bad capacitor(s) on the motherboard. This is very common for the GX270s due to a manufacturer defect. Most of them failed in years 2-4, though. This would require a replacement motherboard (very technical). Pictures of bad capacitors: http://brianmorristech.com/?p=105
It could also be related to the power connector from the power supply to the motherboard (unlikely).
Another good option would be to buy a used GX270 from eBay and put your hard drive into it.
Try to check connections between the monitor and the System Unit or what they called CPU. Turn on the computer you must hear 1 beep means the computer start normally. if you haven't, try taking out any new installed hardware but not the video card if you don't have onboard video device and turn on your computer again.. if problem still exist keep in touch.. TY