After I installed a sapphire r9 270x my new computer it wouldn't start up. It is dead. No power. I checked all the connections and can't find anything. I took out the new 270x still nothing. No power, dead.

I am on the verge of just using it as a piece of furniture in the living room as a reminder of what not to get into. If I have to go to the high priced computer service man, the whole idea of me building my own is just a joke.

Happy thanksgiving.

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merle - vote yes for freedom of speech

Have you tried another PSU?

No I don't have that type around here. Thanks though.

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merle - vote yes for freedom of speech

I emailed corsair about their rm 850 psu. They are to get back to me within 2 days hopefully with an rma so I can ship it back. I just hope it was the power supply. I never did see that fan turn on that model. Supposedly it doesn't turn at low or medium power. But I never did see it turn at all. Not once.

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merle - vote yes for freedom of speech

Try unplugging it, taking the battery out, and letting it sit for about a day. Sometimes they do come back to life.

But I never did see it turn at all. Not once.

Well, now that you say that.... Letting it sit may still bring it back though.

Have you tried another PSU?

Or this PSU in an other machine?

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Try unplugging it, taking the battery out, and letting it sit for about a day. Sometimes they do come back to life.

But I never did see it turn at all. Not once.

Well, now that you say that.... Letting it sit may still bring it back though.

What battery? You mean on the MoBo? Or are you calling the PSU a battery?

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merle - vote yes for freedom of speech

Have you tried another PSU?

Or this PSU in an other machine?

Thanks Link but that type of PSU wouldn't work in the others I have.

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merle - vote yes for freedom of speech

Try unplugging it, taking the battery out, and letting it sit for about a day. Sometimes they do come back to life.

But I never did see it turn at all. Not once.

Well, now that you say that.... Letting it sit may still bring it back though.

What battery? You mean on the MoBo? Or are you calling the PSU a battery?

Yes, most MoBo have a quarter sized battery on them. The idea is to remove all power from the machine. That means disconnecting the cables too.

Try unplugging it, taking the battery out, and letting it sit for about a day. Sometimes they do come back to life.

But I never did see it turn at all. Not once.

Well, now that you say that.... Letting it sit may still bring it back though.

What battery? You mean on the MoBo? Or are you calling the PSU a battery?

Yes, most MoBo have a quarter sized battery on them. The idea is to remove all power from the machine. That means disconnecting the cables too.

Ok thanks!

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merle - vote yes for freedom of speech

Did you check to make sure the power switch was still connected to the MB??

Does your MB has a "power good" LED that comes on when the PSU plugged in & switched on if it has a switch?

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SETI@home classic workunits: 93,865 CPU time: 863,447 hours
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Stupid questions but:
- are you sure the power button cable (from the front of the case) is connected to motherboard?

Did you turn OFF the power switch on the back of the PSU before installing the video card?
(and now that power switch is in ON position again)?
http://www.techpowerup.com/reviews/Corsair/RM850/images/psu_quarter.jpg

Sometimes even the mains cable of fuse fails (try another mains cable on another wall outlet)

PSU have "Short Circuit Protection", "Over Current Protection", ...
http://www.techpowerup.com/reviews/Corsair/RM850/2.html

(to check for fallen metal objects (which may cause Short Circuit) you may slowly turn the case in different directions and listen to some 'drop' noise)


If someone can see internal fuse (in the PSU) on the pictures?
http://www.techpowerup.com/reviews/Corsair/RM850/4.html

What is the dark-blue small plate at bottom-right (near the cable end) on this picture?
http://www.techpowerup.com/reviews/Corsair/RM850/images/in_top1.jpg

EDIT:
OK, it is not plate but capacitor (previous picture is blurred for me)
http://www.techpowerup.com/reviews/Corsair/RM850/images/in_modular_front.jpg

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- ALF - "Find out what you don't do well ..... then don't do it!" :)
 

Did you check to make sure the power switch was still connected to the MB??

Does your MB has a "power good" LED that comes on when the PSU plugged in & switched on if it has a switch?

Power switch was still connected (checked several times).

No power good switch on MoBo.

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merle - vote yes for freedom of speech

Stupid questions but:
- are you sure the power button cable (from the front of the case) is connected to motherboard?

Did you turn OFF the power switch on the back of the PSU before installing the video card?
(and now that power switch is in ON position again)?
http://www.techpowerup.com/reviews/Corsair/RM850/images/psu_quarter.jpg

Sometimes even the mains cable of fuse fails (try another mains cable on another wall outlet)

PSU have "Short Circuit Protection", "Over Current Protection", ...
http://www.techpowerup.com/reviews/Corsair/RM850/2.html

(to check for fallen metal objects (which may cause Short Circuit) you may slowly turn the case in different directions and listen to some 'drop' noise)


If someone can see internal fuse (in the PSU) on the pictures?
http://www.techpowerup.com/reviews/Corsair/RM850/4.html

What is the dark-blue small plate at bottom-right (near the cable end) on this picture?
http://www.techpowerup.com/reviews/Corsair/RM850/images/in_top1.jpg

EDIT:
OK, it is not plate but capacitor (previous picture is blurred for me)
http://www.techpowerup.com/reviews/Corsair/RM850/images/in_modular_front.jpg

.
I did find a fallen thumb screw in the case after I tried but failed to power up.
What would that mean? Destroyed MB?

I'm working on the rest of that stuff.
Dark blue thing - I don't know, mine is not taken apart.

I don't know what an internal fuse would look like.

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merle - vote yes for freedom of speech

I did find a fallen thumb screw in the case after I tried but failed to power up.
What would that mean? Destroyed MB?

I'm working on the rest of that stuff.
Dark blue thing - I don't know, mine is not taken apart.

I don't know what an internal fuse would look like.

Loose metal things inside the case do tend to be an issue. Especially if they find their way behind the MB at some point.
Could be a toasted MB or the PSU has gone into short circuit self preservation mode. As it was stated earlier. The PSU will reset itself once all the power bleeds off. For that I just pull the power cable to the PSU and hold the power switch for 30-90 seconds & then let it sit unplugged for 5-10 minutes. Then give it another go.
There is a way to test your PSU to see if it is still working by shorting two pins on the main MB connector. If you feel like you want to give it a go.
http://www.wikihow.com/Check-a-Power-Supply
Given the PSU on your model is designed to not spin until under a moderate load you may want to connect a hard drive or fan to the PSU as well to confirm it is switching on or not.
If the PSU passes the test then it is likely the genie has left the motherboard never to return.

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SETI@home classic workunits: 93,865 CPU time: 863,447 hours
Join the [url=http://tinyurl.com/8y46zvu]BP6/VP6 User Group[

on this picture:
http://www.techpowerup.com/reviews/Corsair/RM850/images/in_transientb.jpg
the yellow thing inside the rubber tube right of the right grey block are MOV -> Varistor,
they do the "Short Circuit Protection", "Over Current Protection" and work more or less the same as a fuse.

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- Performance is not a simple linear function of the number of CPUs you throw at the problem. -

I did find a fallen thumb screw in the case after I tried but failed to power up.
What would that mean? Destroyed MB?

I'm working on the rest of that stuff.
Dark blue thing - I don't know, mine is not taken apart.

I don't know what an internal fuse would look like.

Loose metal things inside the case do tend to be an issue. Especially if they find their way behind the MB at some point.
Could be a toasted MB or the PSU has gone into short circuit self preservation mode. As it was stated earlier. The PSU will reset itself once all the power bleeds off. For that I just pull the power cable to the PSU and hold the power switch for 30-90 seconds & then let it sit unplugged for 5-10 minutes. Then give it another go.
There is a way to test your PSU to see if it is still working by shorting two pins on the main MB connector. If you feel like you want to give it a go.
http://www.wikihow.com/Check-a-Power-Supply
Given the PSU on your model is designed to not spin until under a moderate load you may want to connect a hard drive or fan to the PSU as well to confirm it is switching on or not.
If the PSU passes the test then it is likely the genie has left the motherboard never to return.

I plugged a six pin into the PSU the outlet was to a molex. The molex connected to a fan but the fan didn't turn on. Good news? The PSU had been disconnected for 3 hours since the failure.

--edit

The thumb screw, I think was too big to fit behind the MoBo with the size riser's I used.

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merle - vote yes for freedom of speech

I plugged a six pin into the PSU the outlet was to a molex. The molex connected to a fan but the fan didn't turn on.

I don't understand
You mean you connected just one cable to the PSU (all other cables disconnected):
http://www.techpowerup.com/reviews/Corsair/RM850/images/psu_rear.jpg

... and the other end of this cable is a molex and you connected a fan to that molex?

Of course the fan will not spin (because the PSU is in fact OFF).

To turn the PSU ON you need to short the 'green pin' on the "24 pin ATX" to black (ground, zero)
http://pad2.whstatic.com/images/thumb/9/98/Check-a-Power-Supply-Step-6.jpg/670px-Check-a-Power-Supply-Step-6.jpg

... but all your cables are (?) black which will make this pin harder to distinguish

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- ALF - "Find out what you don't do well ..... then don't do it!" :)
 

I plugged a six pin into the PSU the outlet was to a molex. The molex connected to a fan but the fan didn't turn on.

I don't understand
You mean you connected just one cable to the PSU (all other cables disconnected):
http://www.techpowerup.com/reviews/Corsair/RM850/images/psu_rear.jpg

... and the other end of this cable is a molex and you connected a fan to that molex?

Of course the fan will not spin (because the PSU is in fact OFF).

To turn the PSU ON you need to short the 'green pin' on the "24 pin ATX" to black (ground, zero)
http://pad2.whstatic.com/images/thumb/9/98/Check-a-Power-Supply-Step-6.jpg/670px-Check-a-Power-Supply-Step-6.jpg

... but all your cables are (?) black which will make this pin harder to distinguish

Ok, I wasn't sure whether Hal was connecting those last sentences together or if they were independent ideas.

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merle - vote yes for freedom of speech

More info and pictures:
http://www.ochardware.com/articles/psuvolt/psuvolt2.html


! The Green is #16 - NOT 15 as in HAL's link

16	PS_ON#	Green	Power Supply On

http://pcsupport.about.com/od/insidethepc/a/atx-pinout-24-pin-12v-psu.htm

"16 Power on Green"
http://en.wikipedia.org/wiki/ATX#Power_supply

Here as PS_ON#
http://upload.wikimedia.org/wikipedia/commons/thumb/0/04/ATX_PS_signals.svg/516px-ATX_PS_signals.svg.png

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- ALF - "Find out what you don't do well ..... then don't do it!" :)