[SOLVED] Boots for a few seconds and then resets (I know this has been posted before but those didnt help)

[fall3n]

Hi, I know this has been posted before but those didn't help with my issue... I am concerned that my problem is a hardware incompatibility because I am a PC-builder noob. I built one other PC a few years ago but had someone else pick out the parts. This time, I chose my own parts, I have:
Gigabyte Z390
i7-8700K 6-core CPU 1151 socket
2x Crucial Ballistix RAM
darkFlash Shadow PWM Aluminum CPU Air Cooler LED Addressable RGB Motherboard Control Cooler Cooling Fan Motherboard Sync for Intel Core i7/i5/i3

Anyway, as the title says, my system turns on, but before the screen displays anything it resets itself (this happens forever until I shut off the PSU manually). When this first happened I thought it may be the front panel wiring so now I just complete the circuit between the two pins for the pwr to turn on the computer which works fine. But after turning on for some reason the system waits a few seconds and then resets.

Possible clues that I can see:
1) When the system turns on for a few seconds, every fan spins EXCEPT the CPU fan. This is a weird cooler/fan to me: (darkFlash listed above). It has two connectors coming out of it, one is the usual fan header to connect to the mobo but the other is a 3-hole (not pin shaped holes, these are round) plug that says "XWD" on it. I don't know where to plug it in so I just moved it out of the way so it dangles there without touching anything and causing a short or something.

https://imgur.com/NnOM28v

View: https://imgur.com/NnOM28v


2) There is a group of 4 lights on the bottom right corner of the motherboard: the top left light is labeled "CPU" and the top right light is labeled "DRAM". I am not sure if this is some kind of testing system but when I first turn on the computer the "CPU" light lights up orange for a few seconds, then it turns off and the "DRAM" light glows orange for a few seconds then the machine resets.. Idk if I have RAM that is compatible with my motherboard... I think I do? My research here was just quickly asking a friend.

Does anyone know why my system loops on / off / on / off? Is it a RAM thing or am I off on that one?
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EDIT: #2 were status lights

 

[Fix_that_Glitch]

That plug goes to the rgb header on your motherboard. Hopefully when plugged in the cpu fan will power up. The motherboard is not coming to life because your cpu fan is not working and it is shutting itself down to protect your cpu.

 

[fall3n]

@Fix_that_Glitch oh ok awesome, but as shown in the picture above, the connector has those round holes so would piins even fit? What does the connection on the motherboard look like?

 

[Fix_that_Glitch]

What model is your motherboard z390 what?

 

[fall3n]

z390 Designare, but there is a more important problem: this morning shorting the on switch does not work. I have no way of turning this thing on now 😵

 

[Fix_that_Glitch]

SO the cooler came with two plugs? If so where is the other plug plugged in to?

 

[fall3n]

it is not plugged into anything, I just put the plug behind the back panel of the case so it would not contact anything.

The connector has the pin formation I I 0 I so any 4-pin header would have it's 3rd pin broken if this were plugged into it ( the 0 is not a hole, it is just an empty space of flat plastic)

 

[fall3n]

@Fix_that_Glitch something must have been touching the motherboard because I cleaned off the table the system is being built on and now the computer starts when I power on the computer.. ok, I should follow your lead and deal with one issue at a time. Where do I plug in that weird 3-hole connector?

 

[Fix_that_Glitch]

Ok so we are on the same page, the cooler for the cpu has two plugs and neither is plugged in?

 

[fall3n]

@Fix_that_Glitch one of the 2 plugs is plugged in. The standard 4-pin plug coming from the CPU is plugged into the CPU_FAN header. The second plug coming from the fan (thats the weird one) is just dangling behind the case.

Possibly related: There is an empty 4-pin header on the mobo right underneath "CPU_FAN" called "CPU_OPT".

 

[Fix_that_Glitch]

THE instructions for your cooler are very confusing. At the bottom of your motherboard you will find sys fan1 pins. Try plugging the 4 pin plug from the cpu fan header to that and see if your cooler powers up

 

[fall3n]

@Fix_that_Glitch hmm there is no “sys fan1” but there IS a 4-pin header labeled “SYS_FAN2”. Could they mean that one? I currently have another fan plugged into it (and that fan works) but I can move the CPU fan plug over to it And plug the other fan in somewhere else. Since the CPU fan has two different plugs, should I plug the regular 4-pin connector or the weird connector from the original post into ”SYS_FAN2”?