Gaming PC turns on for a second, then turns off

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im_bad_at_creating_usernames

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Aug 21, 2013
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10,510
My 2 friends and I spent 4 hours last night building my new PC. When I tried to turn it on for the first time, the lights and fans turned on for about 1 second, then stopped.
I plugged in a mouse/keyboard, knowing sometimes that makes a difference. It didn't.

I've spent some time today seeing mistakes I made: I didn't set the motherboard out and plug it all together outside of the case, nor did I try to plug things in one at a time and test them. I've seen a way to test if it's my PSU, so I'll try that today.

My question is, I noticed it looked like a couple pins were bent on my mobo where the CPU goes, but I don't remember ever hitting it. I've read how companies don't take these back, so now I'm nervous.
Also wanted to know if my parts happen to be incompatible:

-COOLER MASTER Hyper 212 Plus
-Intel Core i7-4770K Haswell 3.5GHz LGA 1150
-SAMSUNG 840 Series MZ-7TD250KW 2.5" 250GB SATA III Internal Solid State Drive (SSD)
-CORSAIR TX Series CMPSU-750TX 750W ATX12V v2.3
-MSI Z87-G45 Gaming LGA 1150 Intel Z87 HDMI SATA 6Gb/s USB 3.0 ATX
-MSI Gaming N760 TF 2GD5/OC GeForce GTX 760 2GB 256-bit GDDR5 PCI Express 3.0 SLI Support Video Card
-G.SKILL Ripjaws Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800)
-Western Digital WD Blue WD5000AAKX 500GB 7200 RPM 16MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive - OEM
- ASUS DRW-24B1ST/BLK/B/AS Black SATA 24X DVD Burner - Bulk - OEM
-DIYPC Adventurer-9601G Black Steel ATX Full Tower Computer Case with 5 x 120mm Green Fan and 1 x USB3.0

Found this site a couple months ago and it's been awesome so far. Don't let me down now!

<edit> I've noticed there are a lot of titles similar to mine. I'm going to try what some of those solutions say when I get off work. I realize how vague my problem is, I'm just frustrated. Mainly I want to know if I should have bought "x" instead of "x" </edit>
 
Solution
T
If they won't take it back as RMA...

You can sometimes fix those with a mechanical pencil with a metal tip. Take the graphite out, and using a magnifying glass to assist, put the tip over the bent pin and slowly straighten it out. Then take a very careful look at the array of pins from multiple angles. You should see patterns in the reflections and shadows. If you see any irregularity in the pattern, that means you have one or more pins out of alignment.
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chugot9218

chugot9218

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May 8, 2012
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Compatibility is fine, I would probably point to the bent pins on the MOBO and yes, unfortunately they are pretty picky about those, but can't hurt to try and get an RMA, just explain the situation. Did you install the standoffs in the case? Next time do an external build first, lets you square away any issues before you get everything planted in the case.

If you can't get an RMA you can try and straighten the pins, I think credit cards fit pretty neatly in between the rows, or I have heard of people using BIC pens with the pen cartridge removed.

Also, did you try turning it on with the bare minimums installed (CPU, Heatsink/Fan, RAM, PSU).
 
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im_bad_at_creating_usernames

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Aug 21, 2013
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I took my motherboard out, set it on the cardboard box that it came in, and plugged in just the power supply (the 8- and 24-pin cables) and the tiny power switch wire to my computer (so I could press the button to turn it on).
Like before, it turned on just for a second. Long enough to light up the Audio Boost sign, and that was it.

Used a friend's PSU, plugged everything the same way.
Same thing.

Most of the things on that list I'd already tried or double checked. The extra links near the bottom of the first post didn't help much either. Most of these things I've checked as far as I can tell. I've done the bare-minimum thing, and it still didn't work.

It's looking more and more like it's my motherboard.
How big a deal are bent pins? It looks like two are 90 degrees off on one corner, and one in the other corner is about the same. Should 2 or 3 slightly bent pins make a difference?

I'm going to try to put in an RMA with Newegg, but I'm not holding my breath...
 
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im_bad_at_creating_usernames

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Aug 21, 2013
11
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10,510
A picture of the chip area on the motherboard. Not 90 degrees I guess, but still obviously bent.



Would this be the whole problem, or might my motherboard be bad "in general"? If it's just the pins, I could *try* to fix them. Just afraid I'll make it worse.
 
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teddymines

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Sep 12, 2011
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If they won't take it back as RMA...

You can sometimes fix those with a mechanical pencil with a metal tip. Take the graphite out, and using a magnifying glass to assist, put the tip over the bent pin and slowly straighten it out. Then take a very careful look at the array of pins from multiple angles. You should see patterns in the reflections and shadows. If you see any irregularity in the pattern, that means you have one or more pins out of alignment.
 
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Solution
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im_bad_at_creating_usernames

Honorable
Aug 21, 2013
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10,510
I ended up ordering a new one. =(
I also noticed there were some pins in another spot that were actually sticking straight up, a couple centimeters above the rest (they pricked my finger when I tried to feel if it was uneven like I thought it was).
So now I'm worried I scratched my CPU. It looks fine to the naked eye, but I won't know til I plug it in the new mobo coming.

I can't do an RMA after all because they don't take parts back that were damaged due to improper handling or installation. I'm pretty sure I qualify for one or both of those.

Thanks for the help and opinions, though, everyone. I really appreciate the sense of community here (and lack of trolls).

Cheers!
 
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