New Desktop Won't Boot at All.

Xclaner

Prominent
Jul 2, 2017
3
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510
Hello Forum Members,

This is my first time building a PC.

CPU: Intel i7 7700k
Motherboard: MSI Z270 M3
RAM: Corsair DDR4 8GB (2)
PSU: EVGA NEX650G
Case: NZXT S340

My set up won't boot at all. There is absolutely reaction when I turn on the power.

Therefore, I took the entire system apart and tried bread boarding.

I placed the motherboard on a cardboard box and connected the 8 Pin CPU Power Supply using two 4 Pin connectors. I also connected the 24 Pin Motherboard Power Supply. The i7 CPU is in the motherboard and I have placed an H60 CPU Cooler on top of it and connected the Cooler to the designated motherboard CPU fan power supply. The Case fans are connected directly to the PSU. The PSU is on and functioning. I have one stick of ram in the motherboard, on the designated first slot. The only other thing that is plugged in is the HD Audio cable. All connections are tight and secure. When I turn on the PSU, nothing happens. Not a sound. Not a single light. I even tried jump starting the system with a screwdriver.

In fact, the EVGA PSU came with a testing component.
The PSU motherboard connector can be connected to this component which then acts as a motherboard. When this component is plugged in. The PSU turns on, the PSU fans turn on, and the Case fans turn on, but when the PSU is connected to the actual motherboard. Nothing happens. My PSU is probably working fine. As well as the RAM. There seems to be no problem with the CPU. So there must be a problem with the motherboard or the connections.

I have tried plugging in the Power Switch cable as well as the other front panel cables, but those connections make no difference.

I am not sure what I am doing wrong.

My best guess would be that there may be something wrong with the motherboard. Maybe I over tightened the CPU Cooler and damaged the motherboard CPU pins or something.

I have no GPU because it still has not been delivered.
I also did not wear anti-static gloves when assembling this PC.

The NZXT S340 comes with HDD LED, Power SW, HD Audio, and P LED +/- Plugs.

Any advice on troubleshooting?

Thanks.


 
Solution
It's very possible that the board is DOA. That happens sometimes. I've had a few over the years. It seems like you're doing everything right as far as breadboarding the system outside the case. Is the 24-pin connector fully into the header so that the latch clips the nub on the header? Same with the CPU connector/header.

I doubt you over-tightened the cooler pump. Finger tight or screwdriver snug is usually enough, but I'm not sure how tight you'd have to screw them in to overdo it. Do you have the H60 fan connected to the CPU FAN header?

clutchc

Titan
Ambassador
It's very possible that the board is DOA. That happens sometimes. I've had a few over the years. It seems like you're doing everything right as far as breadboarding the system outside the case. Is the 24-pin connector fully into the header so that the latch clips the nub on the header? Same with the CPU connector/header.

I doubt you over-tightened the cooler pump. Finger tight or screwdriver snug is usually enough, but I'm not sure how tight you'd have to screw them in to overdo it. Do you have the H60 fan connected to the CPU FAN header?
 
Solution

Xclaner

Prominent
Jul 2, 2017
3
0
510


The connections are all secure. I've been pushing them down until there is no space left. Yes, both H60 connectors are connected, the heatsink component and the fan.

Perhaps, this motherboard is bad. I got it off Amazon. It shouldn't be too hard replacing this.
 

Xclaner

Prominent
Jul 2, 2017
3
0
510


The cooling part with the radiator is connected to the CPU Fan Header, while the actual fan is connected to a case system fan header
 

clutchc

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On the H60, the pump (part attached to the CPU) should be plugged into any header that can be set to run full speed at all times. Or even a Molex straight from the PSU with an adapter.

The radiator fan should be connected to the CPU FAN header on the board so that the BIOS can regulate fan speed according to CPU temp. The fan/radiator is what regulates cooling, not the pump. The pump wants to run full speed no matter what.

I doubt that is what is keeping the board from starting, but I mention it for future reference. Still... I'd try doing it and see if anything changes. It might save you some trouble.