Pc wont turn on

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   Hello,

I've got the same problem. The vga and boot light up at the start (and went out before the windows screen). Effectively on my semi modular Corsair TX750M there's a cable integrated marked CPU exactly as your picture (6+2 pin) beside the motheboard big cable.

But the connector of the motherboard is a 4+4 pin.

I saw on the power supply a 4+4 pin connector (see picture below :)

There's no cable with 2 4+4 pin connectors that are came with the power supply package.

Should I add one ?

Thanks

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Philian Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 11 Jul 2020 Status: Offline Points: 1	Post Options Post Reply Quote Philian Report Post Thanks(0) Quote Reply Topic: Pc wont turn on Posted: 11 Jul 2020 at 4:19pm
	Hello, I've got the same problem. The vga and boot light up at the start (and went out before the windows screen). Effectively on my semi modular Corsair TX750M there's a cable integrated marked CPU exactly as your picture (6+2 pin) beside the motheboard big cable. But the connector of the motherboard is a 4+4 pin. I saw on the power supply a 4+4 pin connector (see picture below :) There's no cable with 2 4+4 pin connectors that are came with the power supply package. Should I add one ? Thanks

Asrock1234567 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 20 Dec 2019 Status: Offline Points: 11	Post Options Post Reply Quote Asrock1234567 Report Post Thanks(0) Quote Reply Posted: 23 Dec 2019 at 1:06am
	Yeah im pretty sure the problem is the motherboard now. Because ive checked everything and that led light on vga still stays on. I dont need any storage to simply load the bios right? Theres nothing i can find thats wrong with it.

Asrock1234567 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 20 Dec 2019 Status: Offline Points: 11	Post Options Post Reply Quote Asrock1234567 Report Post Thanks(0) Quote Reply Posted: 22 Dec 2019 at 4:09am
	Its a 2018 650w psu. And the connector im using is 4+4 and says cpu on it. Thats why i assumed the problem is the port. I dont even think the problem is the cpu honestly.

Xaltar Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 16 May 2015 Location: Europe Status: Offline Points: 23213	Post Options Post Reply Quote Xaltar Report Post Thanks(0) Quote Reply Posted: 21 Dec 2019 at 6:10am
	It sounds like you are using a PCIe power connector for the CPU power. This is not the cable you need to connect. It is a 6+2 pin. If you have this cable connected then it is the cause of your problem, of that I am 100% certain. You need to use either an 8pin (4+4) CPU power or a 4pin. The 4pin will only fit in one side of the 8pin connector but it should still work. You may want to consider a newer, more capable PSU. Edited by Xaltar - 21 Dec 2019 at 6:14am


Asrock1234567 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 20 Dec 2019 Status: Offline Points: 11	Post Options Post Reply Quote Asrock1234567 Report Post Thanks(0) Quote Reply Posted: 21 Dec 2019 at 3:44am
	Other than the weird cpu port, theres nothing else wrong with psu or anything wrong with the graphics card or ram. Im gonna check the other wires

Asrock1234567 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 20 Dec 2019 Status: Offline Points: 11	Post Options Post Reply Quote Asrock1234567 Report Post Thanks(0) Quote Reply Posted: 21 Dec 2019 at 3:36am
	No proper cable for this pattern came with the psu.(this is the pattern for the cpu): 1=sqaure 0=other shape. Pattern for cpu cable: 0010 0110 0001 1001 But if the problem is the cpu then was the light working normally where it and the ram turns on and then turns off? And the fan was spinning perfectly too, or is that powered just by the motherboard?

Asrock1234567 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 20 Dec 2019 Status: Offline Points: 11	Post Options Post Reply Quote Asrock1234567 Report Post Thanks(0) Quote Reply Posted: 21 Dec 2019 at 2:32am
	After scouring the web for a few hours, I stumbled upon some very useful information that was actually in my manual the whole time :P: https://forum-en.msi.com/index.php?topic=293661.0 I then looked up what m.2 sticks the x570 phantom 4 supports, and it looks like it might not support mine (cosair mp600 gen 4 PCIe)

Xaltar Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 16 May 2015 Location: Europe Status: Offline Points: 23213	Post Options Post Reply Quote Xaltar Report Post Thanks(0) Quote Reply Posted: 21 Dec 2019 at 2:32am
	I can't read the description of the 2 LEDs that are on. I am going to guess you are using an X570 Phantom Gaming 4. The LEDs indicate issues with the CPU, RAM, GPU or storage. It seems your board has the VGA and Storage LEDs lit but I can't read the writing next to the LEDs in your image. I would remove the CPU and check for bent pins and make sure it is installed correctly. If that doesn't help double check all your connections, RAM, GPU, power etc.


Asrock1234567 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 20 Dec 2019 Status: Offline Points: 11	Post Options Post Reply Quote Asrock1234567 Report Post Thanks(0) Quote Reply Posted: 21 Dec 2019 at 12:27am
	Still isnt booting and shows the two red lights

Asrock1234567 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 20 Dec 2019 Status: Offline Points: 11	Post Options Post Reply Quote Asrock1234567 Report Post Thanks(0) Quote Reply Posted: 21 Dec 2019 at 12:19am
	I just checked all the psu connectors. They're fine.