I want to say I had this computer for at least a decade and I haven't used it since last year but the monitor didn't seem to show anything. Yet, it did work this one time for a brief moment. Maybe it's because I haven't used this computer in a long time. I wanted to make it work today by changing the power supply. It wasn't that nor the monitor. It's either the component or the motherboard. But everything seems to work just fine as usual, blue light on power button is functional (not blinking), normal fan sound. I tried two working monitors and it brings up a blank screen or a glitched screen. What is its problem?
The usual problem with a completely blank screen, even with known working monitors is the graphics card. Relatively easy to put right with a new graphics card unless the graphics is built into the motherboard. This can be checked by looking on the back of the computer. Is the video outlet grouped with the keyboard, mouse etc sockets or separate from these. If it is with these the graphics card is built into the motherboard and would be uneconomic to do anything with unless the board takes a separate card. If you want to try a separate or different graphics card, make sure you get the correct interface, PCI, AGP, PCIe etc etc
SOURCE: Loud Fan, Three Beeps, Black Monitor and No Keyboard response
I have the same model after youlet it sit for a long enough period to cool down it will come back on and work normal, it is a cooling problem called gateway and they confirmed this theproblem I ran in to was what fan this computer has 3. temp fix I used was to remove the tower cover to allow better air flow try this till you can figure out what fan is messing up
SOURCE: Fan is running, power button with blue light is off, cpu won't boot up
Your cpu might have died. As the computer is starting tap F8 and choose last known good configuration to see if you can get it started.
SOURCE: 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.
SOURCE: Gateway GT5220 PC desktop boot issue.
This is Nvidia's dreaded video chip cold solder joint problem. I have fixed many of these in my shop. Two choices, get it fixed or buy a new motherboard.
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