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New Home-Built PC: Power Issue and No Display

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July 20, 2013 4:32:45 PM

Brand new parts, and I just finished building it today, but when I turn it on, it lights up (all the fans start moving and whatnot), but after awhile everything will go dark, the fans will stop, and then everything picks back up again. This seems to be continuously happening with no consistent time interval between shut-offs and turn-ons.

On top of this, when I plug it into my monitor (which I've used only a couple days ago on a different computer) and turn it on, nothing happens. I've tried all the simple suggestions I've seen on other posts, like moving the memory around and making sure everything's plugged in tight, but no luck there.

This is my first post here so if I'm doing something wrong please tell me. Any suggestions with regards to my predicament would be greatly appreciated. I'll try to include any necessary component information below. Thanks a lot.

PSU: Seasonic 550W
MoBo: Asrock Z87 Extreme3
Case: NZXT Phantom 410
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July 20, 2013 5:25:15 PM

CPU overheating, paste installed?
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July 20, 2013 5:33:43 PM

ur6beersaway said:
CPU overheating, paste installed?

I bought a nice CPU cooler of my own instead of using the one that came with the CPU and yeah I pasted it. Could the CPU heat up just from turning the computer on?
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July 20, 2013 5:55:01 PM

Yes it can, but in your (this) case unlikely. Do you have a old psu to power up your rig?
I have to ask to be sure, i'm sure you did a good job, so we can nail down the problem.
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July 20, 2013 6:17:03 PM

ur6beersaway said:
Yes it can, but in your (this) case unlikely. Do you have a old psu to power up your rig?
I have to ask to be sure, i'm sure you did a good job, so we can nail down the problem.

Yeah ask away! Every single component is brand new. The only old piece of equipment I'm using is the monitor and that's still new enough to have DVI.
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July 20, 2013 6:20:33 PM

Do you have a old psu to power up your rig? For testing.
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July 20, 2013 6:50:22 PM

ur6beersaway said:
Do you have a old psu to power up your rig? For testing.

I'm afraid I don't. This is my first build.
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July 20, 2013 7:07:42 PM

Pull out the ram sticks, leave 1 in the A1 slot & boot
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July 20, 2013 7:29:27 PM

ur6beersaway said:
Pull out the ram sticks, leave 1 in the A1 slot & boot

Nothing. Just a bouncing box on my monitor telling me to "Check Signal Cable."
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July 20, 2013 7:42:22 PM

Do you have a video card or plugged into the mobo?
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July 20, 2013 7:44:23 PM

ur6beersaway said:
Do you have a video card or plugged into the mobo?

I do. I've tried connecting the DVI to both.
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July 20, 2013 7:57:12 PM

Pull the card & plug into the mobo? display?
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July 20, 2013 8:32:25 PM

ur6beersaway said:
Pull the card & plug into the mobo? display?

No dice.
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July 20, 2013 8:43:24 PM

Do you have another DVI cable?
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July 20, 2013 9:22:38 PM

ur6beersaway said:
Do you have another DVI cable?

Yeah an old one I used for my Mac. I tried it and it wasn't any different.
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July 20, 2013 9:28:03 PM

Reset the CMOS jumper or pop the battery, without the card & plug into the mobo.?
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July 20, 2013 10:07:21 PM

ur6beersaway said:
Reset the CMOS jumper or pop the battery, without the card & plug into the mobo.?

It seems to be randomly turning on and off less with the CMOS reset but my monitor is still blank.
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!