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Make sure you made all the connections properly. I'm not sure if the motherboard on that computer has the four pin aux power supply for the processor, but if it does and you didn't hook it up, you won't get anything. It's a square shaped connector with yellow and black wires. Some power supplies don't have this connector and will not work on a board that requires one.

Posted on Oct 21, 2007

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Gateway computer power light flashes before booting up.

Hmm. I wouldn't have thought it had anything to do with pressing the button. It sounds more like a failing power supply or lack of current for startup. Did you make sure you plugged the power into the video card power connector (if it has one)? I know it worked ok at first but a heavier load can cause older or under-rated power supplies to fail soon after. Just a thought.

Dec 16, 2013 | Gateway GT5662 Desktop PC

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My computer died and won't turn back on.... when i press the power button i get the power led light for a split second then it goes off... nothing else turns on such as the fan or hard drive... it will not

This sounds like a power supply failure inside of your desktop.
If you're good with a screwdriver, you can order a replacement power supply from Gateway and replace it yourself or you can take the desktop in for service.
On the Gateway web site support page, it provides you with all of the equipment installed within your desktop including the part numbers of the power supplies used.
The power supplies listed are:
Power Supplies
grn_arrow.gif100889 - 300-Watt Power Supply
grn_arrow.gif100929 - 300 Watt Bestec Power Supply
grn_arrow.gif103563 - 300-Watt Power Supply

Dec 26, 2010 | Gateway GM5072 Desktop PC

2 Answers

Replaced Gateway 105552 Foxconn C51GU01 Motherboard with another

Are you sure it is a good MB? If so double check all connections and try again. If you still have problems post back and let me know if you are getting any beeps at startup.

Jul 07, 2010 | Gateway GT5058 Desktop PC

1 Answer

After a power outage, tried to power computer. All I got was flashing keyboard and power light while I held in the power button. As soon as I let go, everything goes dard. No start up sounds or anything....

Sounds like it could be the power supply was damaged from the power outage. If you have another PC you could pull the ATX power supply out and install it in the gateway and see if it boots up. Power supplies are fairly inexpensive so look for an aftermarket one...buying a replacement from Gateway will cost alot more. If the power supply turns out to be good then remove one device at a time the try to boot up. Sometimes a bad cd-rom drive or harddrive can cause a problem. My best guess it is the power supply.

Sep 10, 2009 | Gateway 560GE PC Desktop

1 Answer

GT5034 has power, blue light on power button, no beep, no boot, sounds like fan running hard. Hard drive light is on for a while and both CD drives green lights flicker. Nothing comes up on the monitor. HD...

powersource is good.motherboard might be the problem.harddrive can be tested by putting it in
another computer and see if it boot test the mother board unhook the cd drives and harddrive.turn
on the computer and see if the gateway logo comes on.if it still does the the samething with everything unhooked
then it might be the might have to flash the bios and reinstall do this i recommend you take it to a
shop.if the comp runs with everything still unpluged and stops then you know that you have a wrong
setting on the harddrive or cd drive.if you got two of anything make sure that you have a slave or master.if you nned me to
write a guide email me at or if you got anymore questions.

Jun 29, 2009 | Gateway GT5034 PC Desktop

2 Answers

Gateway computer does not turn on

Without seeing the machine, I'm thinking you have a motherboard problem. But try these troubleshooting steps before throwing in the towell:
Open the case and disconnect the CD cable. Now try it. If it still doesn't work, disconnect the hard drive and try it.
Let me know what happens. I've seen CDs mess up a system like this. I many times will swap out the power supply, but I'm thinking with the lights flashing, its a more serious problem.

Jun 23, 2009 | Gateway 500GR PC Desktop

1 Answer

Check Power Supply

Yes the orange lite usually indicates that the computer does not have enough power to start it. I dont think theres anyway around it, youll have to get a new power supply

Apr 11, 2009 | PC Desktops

2 Answers

My gateway is not turning on!?

The most likely possibility is you need to replace the power supply. If you have a power supply tester you can check it. If not you may want to borrow or purchase a new one. They, for the most part, are not that expensive. I hope this helps. Joe

Nov 25, 2008 | Gateway GT4016 Desktop PC

1 Answer

Orange Power light flashing

Most likely a power supply failure. It apears that the power supply is not putting out all necessary voltages.

Replace the power supply

Sep 02, 2008 | Gateway 556GE Intel Pentium 4 630 3GHz(HT)...

1 Answer

Computer wont power on

you should get the systemboard replaced and regarding the power button its a less expensive but replacing the systemboard needs to be replaced as two power supply cannot be bad.

Jun 09, 2008 | Gateway GT4022 PC Desktop

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