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Question

No video output (yes the 8 pin is connected) HELP!

Sep 26, 2017 11:30AM PDT

I recently purchased a new battery that was too powerful for my computer, after giving up on it I decided to reconnect my old one but now my desktop turns on and it seems everything's running, all the fans are spinning everything's making noise like you'd like it, all the lights are on but no video output? The gpu is getting power judging from its fan running smoothly so what's the deal? Did I **** it all up by trying a too powerful battery? Or what other things could it be?

Discussion is locked

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Clarification Request
I can't find details here.
Sep 26, 2017 11:44AM PDT

I have run into folk that call a PC Desktop POWER SUPPLY the "battery." But there is no "too powerful" in these units since the cards and boards in a desktop will consume what they need.

It's when the POWER SUPPLY is not powerful enough that you see the issues you described as the power supply drops out under the load. Hopefully it shuts down but some designs turn on/off or something else.

I'd go back to the setup that worked.

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Details
Oct 1, 2017 3:24PM PDT

Well the reason I said too powerful was because if you touch the metal bits of the case you would feel a shock, and I did try and go back to the old setup but it doesn't work, idk why but my keyboard and mouse doesn't get power (well the lights go on then turn off quickly idk why) and theirs no video output.
I wish I couoe post pictures

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Pictures are not required yet.
Oct 1, 2017 3:54PM PDT

I take it you assembled it per the maker instructions and watched many YouTubes. So at this point I worry that you have some bad parts.

Do you have a PC buddy that can try some parts for you?

Is there more to this story like "I upgraded the motherboard?"
Why I ask is a recurring build gaffe is to have too many mounting posts under the motherboard.

So there we are. We don't need a case to power up a system for testing. We can put the motherboard on cardboard and build there to check things out.

That out of the way, I don't duplicate the web on how to build a PC as that's rather well done.