Question 4pin not delivering enough power?

[Bart_k]

So lately i bought Ryzen 5 3600, AsRock b450m steel legend and one stick of ddr4 8 gb 3200mhz ram from kingston. I didn't have enough money to afford a whole new pc so i decided to buy theese parts and upgrade in near future (the gpu i have is nvidia's old gt 740) and the problem is that AsRock's MB requires 8 pin but my PSU has 4 pin i red that its possible to run a pc like that but the problem is that its shuts itself down and boots again and again... So i have a question is 350W PSU not enough to power this setup or its something with a board that it won't run unless its plugged to 8 pin connector, or what it could be that im doing wrong.

 

[rgd1101]

make and model of the psu?

 

[Bart_k]

It's FSP300-60HHN 85+ https://bulk.fsp-europe.com/fsp300-60hhn-85 here's the ling to full specs btw i didn't notice that 350W is peak power...

 

[IntelTurtleFan]

No, that unit isn't going to work. At a minimum, a Corsair CX (gray label) 450w will be required. Also if you can go with 2x4gb sticks of RAM instead of 1x8gb (

View: https://www.youtube.com/watch?v=VgCME7Y1EO8
).

As for the motherboard, you will also need an older CPU (Ryzen 2xxx or 1xxx series chip) to flash the BIOS since that motherboard does not natively support 3xxx Ryzen.

https://pcpartpicker.com/product/3hkwrH/corsair-power-supply-cp9020102na
https://pcpartpicker.com/product/Fd...onze-certified-atx-power-supply-cp-9020121-na
https://pcpartpicker.com/product/Q7...onze-certified-atx-power-supply-cp-9020120-na

However, if you can I would spend a bit more to allow for future upgradability with one of these:
MY NUMBER 1 CHOICE: https://pcpartpicker.com/product/sMM323/evga-supernova-g3-550w-80-gold-certified-fully- modular-atx-power-supply-220-g3-0550
MY NUMBER 2 CHOICE: https://pcpartpicker.com/product/bk...fied-fully-modular-atx-power-supply-ssr-550fx

https://pcpartpicker.com/product/bq...-fully-modular-atx-power-supply-cp-9020177-na

 

[Bart_k]

Ok thank you very much