My power went out for 42 min while i was using the pc when the power was restored my pc no longer worked. a green light in the back of tower blinks and the off/on button flashes blue and the monitor reads no signal when i cut it on
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Yes even with the green light on it could still be the power supply. Have you pulled the power, opened the case, and pulled the BOIS battery? Could be the BOIS needs to be reset. You might also pull all the memory chips, turn it on and see if you get a beep code. I have had that happen in the past. Then I would replace the power supply (if you have an old one laying around use it to test, with just the MOBO plugged in). If the power supply fails, that leaves only the mother board as the issue.
Good luck, I hope one of these suggestions works for you.
Do you mean the monitor's power light starts green and then turns orange when you turn it on? Most monitors will go to a power saving mode when they do not get a signal from the computer.
The Dell GX260 has a green power light when on. When the computer is off, the light is off. If it is green and blinking, then the computer is in a power saving mode.
Diagnosis: start with the obvious: is the monitor cable plugged into both the computer and the monitor (if not permanently connected to the monitor)? Are you connected to the active port? (You can add a video graphics card in most desktops. The motherboard video port usually needs to be disabled to use the card ports. If you plug in the monitor cable to the disabled port, it won't work.) Is the monitor set to the correct input? (This applies if the monitor has several ports. In that case, there will be a Source or Input button on the monitor.) Is the computer on? The GX260 has the power button on the front. (Other computers have the power button on the top.) There is also the power supply switch on the back which needs to be on.
Next try a different data cable between the monitor and the computer (if you can). Try a different monitor. If a second monitor works, than the monitor has a damaged main board. If the second monitor doesn't work, then the video graphics adapter has probably failed. Replace the add-on card, if in use, then boot in the safe mode to remove the old graphics driver. Then install the correct driver for the graphics adapter.
Note: the computer and the monitor should both be off when you connect the cables. Then turn on the monitor first and set it to the correct source before turning on the computer.)
Hold Power button in for 10 secs... see if starts... if not, unplug for 5 min and plug back in and try to start. Motherboards can lock up in the BIOS or it could be a power supply. If this solution doesnt work, leave power plug out over night and attempt again. If fails again... it maybe the power supply.
This type scenario normally indicates a power supply failure. Try connecting a known good power supply to your Sony Vaio desktop.
If you do not have a spare power supply, (many people do not) the alternative is to short the the black and green wire on the power lead connecting to the motherboard using a paper clip. This is not a desirable solution and very dangerous, but will help to diagnose the problem. Do not insert any objects while the power supply is energized. Ensure it is unplugged first.
Should the computer start with the green and black wire shorted, the problem is with the power supply. If not, the problem is likely at the motherboard level.
my Sound card is uninstall. tall me how i re install it.(i don't have driver c/d. its missing.)my pc model no is (Compaq Business Audio driver for window 98 In Intel(R) 82810.).my email id is firstname.lastname@example.org
You will need to replace the hard drive which has any version of windows operating system, or you will have to re-install windows xp on that computer. Assuming if the computer has a green light and monitor has an orange light. I've encountered this problem where I work at.