When powered up there is a flashing orange light on motherboard,
no fan running, or any operation at all on cd etc.
checked with standard power supply and still same.
could it be cpu fan?
orange light also flashing in centre of on/off switch
I had just removed dust from the fans on my Dell Optiplex GX260 desktop power supply and processor. I started the PC and it worked fine. I now replaced the the hard disk and suddenly an orange light appeared on the motherboard. Since then the PC has refused to start, and the orange light comes on whenever the system is connected to the power source. HELP!
Either the motherboard or power supply are bad. I've had both be the cause of the problem. Check the motherboard for bulging and discolored capacitors. The same can be true of the power supply.
To the guy above who said his were out of warranty. If the motherboard is the cause of the problem, Dell will replace it until near the end of January. Just call them up and try to convince them. We are an educational customer, but everyone should be able to get it. It's a known defect.
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Re: gx260 pc wont start
Have you checked the post lights located in the back of the system by where the keyboard plugs in?
There are is a row of 4 lights; either yellow or green. If the systems gets stuck at a particular post location, the lights will tell where.
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You say the power light is orange--I'm assuming that you mean the monitor. This indicates the monitor is not receiving a signal from the computer. Assuming that the computer actually powers up (fan runs, you can hear the hard drive being accessed, etc) then your problem lies in the video card.
If, on startup, you do see the BIOS info and maybe even the Windows splash screen before your monitor goes dark, then the problem lies in the video card drivers. In this case, starting in safe mode will work and allow you to download and install new drivers.
Green LED on PS means it's getting AC power. Orange light on motherboard means it's receiving power from PS but it may not be the correct voltage. The power supply isreceiving power from the source but is unable to properly distribute it to thecomponents. This can be caused by a defective power supply or a defectivemotherboard. Just to make sure that nothing else is causing the problem, removeany PCI cards like modem, video card, sound card, etc... Remove the memorymodules and disconnect cables to CD/DVD drives. Look at the USB ports to see ifany are damaged.
First test your PSU or replace it then test all leads that are attached to your hard drive sounds like a faulty lead of some sorts then try replacing all the leads that attach to your hard drive including electrical extensions + IDE,SATA and the ones that attach from your motherboard to hard drive or replace them they are probably old and faulty ? good luck
Steady Amber Power LED generally indicative of a failed MB. Remove all Memory, Expansion Cards, peripheral items, if still same, replace the motherboard. If you get a Green LED with jusr RAM in system, then an expansion card or peripheral might be the issue. 95% sure it is mothebroard
Gx260-Gx280 have a known issue with the motherboard capaciators. Take a look at the capaciators on the motherboard and check if any look like they have bludges at the top particularly around the memory banks. If any of them look like this the motherboard most likely needs to be replaced.
Open up the case and remove any add in cards and memory modules. Try to start up by adding these back one at a time until the unit stops booting normally. The light combination is not one recognised in the user manual so I am guessing you have a non-descript fault with one of your components. Be careful when you open the case as to not disturb the ribbon to the motherboard which controls the power, I have had a very long experience trying to get one of these reconnected!
1. motherboards for atx form factor pc's are powered even when the computer is off, particularly if you leave the computer plugged in to wall outlet... you better do not work on you computer while power cable is still connected to both, your pc and the wall outlet..
You have 500mA on usb port. If you cause a short on usb connectors, this can damage the motherboard. Disconnect usb port on motherboard (work with power unplugged ), remove all ide and floppy cable,eventually remove and put back in place bios battery and Ram. Restart Motherboard only with 1 module Ram (bios battery back in place), CPU and Fan (ensure cpu and fan are well in place), do not plug anything else than switch on button. If it still does not work there is a good chance you blew the Motherboard.
Optiplex GX260 and GX270 has known motherboard problems. most of them suffer from bulging capacitors. call tech support at 800-8228965 and they should be able to replace the motherboard even if the warranty is expired.
I had the same issue and accidentally discovered a temporary solution. Unplug the power from the back of the machine, open the case and unplug the ATX power connection from the motherboard. With the ATX cable unplugged, plug the power cord back in. When you try to turn the computer back on the power light should turn orange and fans should be spinning, with it powered on plug the ATX connector back in. That should turn the computer off. Turn it back on and it should boot fine. You can even shutdown and restart, but when the power is unplugged you will have to go thru the same process to get it back up. This sounds crazy but it worked on mine. Good Luck!