P6774y wont boot, fans run.

Here a couple weeks ago we had a power surge and my computer shut off, and i was unable to get it to come back on. After unplugging it and letting it sit for a few hours it came back on, and has been doing that randomly since then. Now its not coming on at ALL. Its been over 24 hrs since ive been able to boot it.
When I hit the button to turn it on the fans kick on, but no light comes on (on the front) and nothing happens on the screen. The green power supply light is lit up, so its getting power just not coming on..only thing that seems to run is the fans. I really dont know anything about computer hardware and do not want to go taking it apart and ruining it anymore but hae no income atm so I cant afford to pay someone to look at it.
Any help?
eDIT: Just tried clearing cmos, think I did it right, moved jumper to first two pins, tried to boot, nothing..moved pins back tried to boot, nothing..just fans

Scintie,
HP's generic power supply tech guide is here. You'll need to follow the guide, step-by-step. Do not omit anything.
I am a volunteer. I am not an HP employee.
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Power Mac G4: Screen is Black, No Startup Tone, Drive Does Not Operate
The Power Mac G4 computer screen is black. The boot tone is not present, the drive does not operate, but the fan is running, and LED is lit.
This article covers repair procedures for authorized service providers on selected Apple products, but we have published them in the Knowledge Base for the general public for educational purposes. At this time, there are a limited number of repairs that a customer can perform and these are covered under the customer installable parts program http://www.info.apple.com/installparts. If you have not been authorized to perform these procedures, please contact Apple (800-APL-CARE in the USA) or your local authorized service provider to schedule a repair.
Symptom
The Power Mac G4 computer screen is black. The boot tone is not present, the drive does not operate, the fan is running, and LED is lit.
Affected Products
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o Macintosh Server G4
o Macintosh Server G4 with Mac OS X Server
Solution
DANGER! This procedure exposes you to high voltages that can result in death or serious injury. DO NOT ATTEMPT THIS PROCEDURE IF YOU HAVE NOT BEEN CERTIFIED AS AN APPLE-AUTHORIZED TECHNICIAN.
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Solution
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Will not boot up and fans run at high speed

will not boot up and fans run at high speed

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Go to Solution.

@nvmvoidrays,
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Check out the Community Knowledge Base for hints and tips.
Did someone help you today? Press the star on the left to thank them with a Kudo!
If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"!
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TL;DNR
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Message was edited by: Ducksnake

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If you put the Mac OS X Install DVD in the drive and restart your computer while holding down the Option key, and then click on the DVD when it appears on the screen, are you able to boot into the Installer? If so, can you try reinstalling Mac OS X (using the Archive and Install option) or perhaps restoring from a Time Machine backup?
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P6774y wont boot, fans run.

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