CPU Motherboard problems

[Halifax]

I built my first computer this week, but its not working and I think I know why.

The Build:

Motherboard: MSI B450M Pro-VDH plus motherboard

CPU:              Ryzen 7 2700

GPU:              Saphire Puulse Radeon RX 570

DRAM:           2x8Gb Corsair

SSD:              PNY 480GB

Power Supply: EVGA 500BT

 

 

Assembling it went smoothly (I have replaced parts on PCs before, and G3 sockets are nicer than intel sockets).

But when I tried to start it up, the motherboard's CPU error light lit up. I believe the CPU is not working because the motherboards BIOS is out of date and needs to be updated. Is this a good assumption to make? And if so, what is the cheapest/easiest way to update the BIOS?

[Skiiwee29]

Normally it would, but the B450 board supports the R7 2700 natively so a BIOS update wouldnt be required to run the CPU on that board. 

[brob]

Check that the cpu cooler is well mounted and the fan plugged in and running.

 

If it's not that, it may well be a bent pin. To determine if that is the issue you will have to remove the cooler and carefully remove the cpu to examine the pins on the underside.