Two power inputs but one power cord?

[mavityre]

Greetings folks. My MB is a MSI MAG Z390 tomahawk and I'm using a Corsair CX650 PSU. The PSU has one 8 pin power connector to the MB but the MB also has an extra 4 pin next to the PS1 spot labeled PS2. I tried firing up this new build but no go. I see the light on the PSU but nothing is working. What am I missing? Thanks

 

[feelinfroggy777]

The mobo has an 8 + 4 pin power connection. You will need a PSU that has those power connections. The EVGA G2/G3 750 watt PSU will have the extra connections.

 

[mavityre]

Crap. OK and thanks

 

[mavityre]

Any suggestions as to a decent MB that will work with that Corsair CPU and take an i7 8700 CPU? I have another rig it looks like I'm going to rebuild. Might as well use what I can.

 

[feelinfroggy777]

You will be able to use a z370 board that will work fine with the PSU and the 8700k. The Asrock Extreme4 is a solid mid-range board.

PCPartPicker part list: https://pcpartpicker.com/list/7qFtvV
Price breakdown by merchant: https://pcpartpicker.com/list/7qFtvV/by_merchant/

Motherboard: ASRock - Z370 Extreme4 ATX LGA1151 Motherboard ($168.00 @ Amazon)
Total: $168.00
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2019-01-22 12:04 EST-0500

If you want something a little cheaper the Pro4 is a decent budget board.

PCPartPicker part list: https://pcpartpicker.com/list/dJJ8pb
Price breakdown by merchant: https://pcpartpicker.com/list/dJJ8pb/by_merchant/

Motherboard: ASRock - Z370 Pro4 ATX LGA1151 Motherboard ($118.04 @ Amazon)
Total: $118.04
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2019-01-22 12:06 EST-0500

As for the high-end, the Gigabyte Gaming 7 is really nice. I have a 8700k/Gaming 7 in my gaming rig and it is a feature full mobo.

PCPartPicker part list: https://pcpartpicker.com/list/t2HzJV
Price breakdown by merchant: https://pcpartpicker.com/list/t2HzJV/by_merchant/

Motherboard: Gigabyte - Z370 AORUS Gaming 7 (rev. 1.0) ATX LGA1151 Motherboard ($229.69 @ OutletPC)
Total: $229.69
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2019-01-22 12:08 EST-0500

 

[mavityre]

Appreciate this! Thanks!