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Computer Start Up Problem

Sep 16, 2015 8:17PM PDT

Hello Everyone,

I am a new poster to this forum, but I've been having an issue with my new desktop build, and I've run out of options that I can personally do on my own. First off, I'll post all the specs to my build:

Processr: Intel Core i5-6600K 6M Skylake Quad-Core 3.5 GHz LGA 1151 95W

Motherboard: MSI Z170A GAMING M5 LGA 1151 Intel Z170 HDMI SATA 6Gb/s USB 3.1 ATX Intel Motherboard

RAM: CORSAIR Vengeance LPX 16GB (2 x 8GB) 288-Pin DDR4 SDRAM DDR4 2666

Graphics: EVGA GeForce GTX 960 04G-P4-3966-KR 4GB 128-Bit GDDR5 PCI Express 3.0 x16

Case: Thermaltake Overseer RX-I VN700M1W2N Black Steel / Plastic ATX Full Tower Computer Case

Power Supply: Thermaltake Toughpower TPD-0750M - SLI/ CrossFire Ready 80 PLUS Gold Certification and Semi Modular

Hard Drive: Seagate Hybrid Drive ST1000DX001 1TB MLC/8GB 64MB Cache SATA 6.0Gb/s NCQ 3.5" Desktop SSHD

My current issue is that when I connect the PSU cable to the wall and hit the power button, the PSU clicks, and all of my fans and LED's come on for a brief moment, then immediately shut off. A few seconds later, this repeats again without me touching anything.

The installation all went according to the manuals, with the only exception being that I initially had the front lead switches placed in an incorrect order, so the reset button was where the power button was supposed to be on the motherboard. With this incorrect set up, the computer actually turned on and STAYED on. Naturally I wanted to have the power button be the actual power button, so I messed with the leads, and now I have my current issue.

My main question is, did I short something when I had the front leads incorrectly installed? Is it possible I have a faulty motherboard or PSU?

I have done a significant amount of troubleshooting so far, such as redoing the entire installation, replacing all of the power cables and testing each separate part with the PSU starting with the CPU and RAM. So far nothing has helped, and I am about 6 hours invested into the total build so far.

Thank you for reading my post, I greatly appreciate even the smallest help on this.

- KingGriffin, Josh

Discussion is locked

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Try it with less connections.
Sep 17, 2015 6:24AM PDT

You don't need the reset, HDD LED and such. Just the Power On connection.

There's also a very common gaffe I see a lot which is the motherboard mounting posts area. Sometimes you find the builder put all of them in and it shorts out the back side of the board resulting in this symptom. We pull the motherboard out and check that motherboard and PSU power up on cardboard then redo the mounting posts.

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When you say less connections...
Sep 18, 2015 10:24AM PDT

Do you mean physical connectors, via screws, from the motherboard to the case? And then test the PSU and the motherboard separately from the case to see if it works then? Would I have to re-seat my CPU and heatsink as well? The installation of both components went very well so I'm confident those are OK.

Thank you very much, and I apologize about the double-post

- Josh

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Yes.
Sep 18, 2015 10:44AM PDT

At the lowest number of connections I have the PSU, motherboard on the power on button. If that fails, I move the motherboard out to cardboard. You may encounter clients that are confident it's this or that so stick to how you troubleshoot as you did in the past. The moment they write "it's not that" the likelihood it is went up.

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Computer Start Up Problem
Sep 18, 2015 11:20PM PDT

Check the PSU and the motherboard separately. I am totally sure your computer start up problem will resolve very easily.