Will not power up

[Laudy]

I have an HP 8000 elite SFF  that will not power up there is a  solid green light on on the motherboard and a  swallowed green light on back by the plugs when I go to power up the computer it will not come on there is no noise, no fans, no clicking, no nothing any ideas what it could be I have tried a hard reset with no joy any response would be helpful

[WAWood]

@Laudy

Sorry, but we are not HP Tech Support; instead, this is just a community self-help forum staffed by mostly by volunteers. We have no way of diagnosing or repairing your PC from here.  All we can do is provide links to troubleshooting steps that HP has written, and links to HP drivers -- but since yours does not even power on, those will be of no use.
 
If your PC is still under the original HP one-year warranty, you should contact HP Customer Support directly to have them put you in touch with HP Technical Support to see what they can do about troubleshooting and repairing your machine remotely.
If they can't fix it, then you need to explore the options for having it replaced under warranty.

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If your PC is no longer under the original warranty, you can still contact HP Customer Support, but they will charge you a fee to put you in touch with HP Technical Support.
 
If you live in the US or Canada, contact information is on this page: http://www8.hp.com/us/en/contact-hp/phone-assist.html#section1
 
If you live elsewhere, contact information is on this page: http://www8.hp.com/us/en/contact-hp/ww-contact-us.html
 
NOTE: After you get through, stay on the line until you are finally able to talk to some one -- it can take a while!
 
If you have trouble finding a phone number, then try: 1 (800) 474-6836
 
If you don't wish to pay to talk to HP Technical Support, your only recourse is to take the PC into an HP Service Center and have them look at it.
 
If you live in the U.S., here is a link to the HP Service Repair Centers:
https://www.service-center-locator.com/hp-hewlett-packard/hp-hewlett-packard-service-center.htm

If you live outside the U.S., here is a link to  HP Service Centers, by Country/Region: https://support.hp.com/in-en/service-center
 
Good Luck