Question about Dell OptiPlex 260 PC Desktop

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No boot when i power on nothing shows on the screen , the power indicator on the power button flashes yellow instead of green. its not booting. pls tell what to do

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Re: no boot

Check your pc cmos batteryit might low. there might be shorting on board because of fungers on edges of ad on cards ormemory.please clean it

Posted on Jan 21, 2008

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ABC diagnostic lights are green and D is yellow. Ram only works if slot 1 is used. If slot 1 and 3 are used Bios appears on the monitor with a flashing cursor. Dell dimension 8400

A,B,C green and D yellow is indicative of a component that the system cannot read a device it feels necessary to boot the machine such as a hard drive, floppy or cd/dvd drive. Power down the system, remove the power cord from the back, push the power button in for 10 seconds to bleed off the power. Remove and reseat all cables connecting the system devices. Remove all ram except for one stick and reboot. If you get boot, then try replacing the ram one stick at a time. If you still cannot boot though, try removing the cables from the devices and then plug in one a time until you get the machine to boot. If there is still a problem, the hard drive or its controller maybe the culprit.

Jun 14, 2010 | Dell Dimension 8400 PC Desktop

1 Answer

Pc won't boot ...

it seems to be an issue of a loose Hard drive connection.. you can open up a tower and re-connect the cable.

Feb 25, 2010 | HP Compaq Presario SR2150NX PC Desktop

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When I power on my eMachines C2480, I do not get any video output. I never see the BIOS menu indication. I see the hard disk indicator flash yellow and then go dark. I have tried to boot from CD without...

Try all the normal stuff be sure the monitor is turned on, check the cable in the rear of the computer be sure it is plugged in good. Check the contrast be sure it is not down all the way. Hook it up to another computer or unplug it from the computer it should have a no signal notice showing.

Feb 23, 2010 | E-Machines C2480 PC Desktop

1 Answer

Screen will not come on hard drive light no light checked power supply is ok

Things to check:
  1. Power led on the front of the tower, it should be solid green when on. Flashing Amber is generally an indication of a bad power supply inside the tower
  2. Power LED Solid AMBER indicates system is not finishing the power on self test (POST) and you remove all connections from the tower except power and try turning on again. If no change, remove all PCI and PCI-E cards from system, try again, no change replace motherboard.
  3. On the back of the tower are 4 diagnostic LEDs near the ps2 ports marked ABCD, after the POST, during a normal boot the will flash in several sequences and with boot is finished all 4 should be green. If they stop an a different pattern, then that indicates a failure Yellow Yellow Green Green indicate bad RAM for example
  4. If the LEDs on front and back are Green then the system appears to be booting but the monitor display is not functional

Feb 05, 2010 | Dell Dimension 4600 PC Desktop

1 Answer

Loooong boot time

A Blinking Amber or Yellow power button means that the power supply is receiving power from the source but is unable to properly distribute it to the components. This can be caused by a defective power supply or a defective motherboard. Just to make sure that nothing else is causing the problem, remove any PCI cards like modem, video card, sound card, etc... Remove the memory modules and disconnect cables to CD/DVD drives. Look at the USB ports to see if any are damaged.

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Nov 10, 2008 | Dell Dimension 8400 PC Desktop

1 Answer

Inspiron 530S Power Save Mode Loop

First you need to make sure that there are no other removable devices plug on the system, like usb, external hard drives, then if that will work try to go to the bios, press f2 when you see the dell logo, and go to the system setup, go to the boot device configuration and make sure that removable device is not the first boot device, if it is the first one choose hard disk and then second boot device ad cd rom/dvd rom and then disable the 3rd boot and the fourth boot device. Make sure to save the changes. And restart the system again. Once the computer is back and running try to go to and check the bios, download if there is a bios update for the system.

Oct 30, 2008 | PC Desktops

1 Answer

Dell wont start up

On the back of the chassis, there are 4 LEDs above the PS2 connections marked ABCD what do they indicate? During the boot process the lights normally flash on and off green, when the boot process is complete, they should all be green GGGG.

If any are Amber then they are indicating a power on self test (POST) failure. AAGG is bad memory for example.

Post the indications

Aug 06, 2008 | Dell Dimension 4600 PC Desktop

3 Answers

Black screen on start up


unplug the system
open the case
look for a battery and take it out
take out the memory (rams)
wait ten minutes
press power button 5 times
put everything back in

and boot it

Jan 12, 2008 | Dell OptiPlex GX270 PC Desktop

3 Answers

Powerbutton flashing yellow

If the main power button LED is flashing or solid yellow, this could indicate a hardware problem.


Was it running good before?


Are the diagnostic LED lights all green?


Here is what dell says:


If the power light is blinking amber  —

 The computer is receiving electrical power, but an internal power problem might exist.

  • Ensure that the voltage selection switch is set to match the AC power at your location (if applicable).
  • Ensure that the processor power cable is securely connected to the system board.

Do you remember what the BSOD said?

Oct 22, 2007 | Dell OptiPlex GX620 PC Desktop

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