[SOLVED] New build - no video output

[cjmcguicken]

I have already gone through all the major steps in the sticky in the forum here.

I have built a new desktop, the motherboard is powering up and fans are whirring but there is no video output (HDMI).

My specs:

• 
  GIGABYTE GA-AB350-Gaming motherboard
  AMD Ryzen 5 2400G CPU
  Corsair CMK16GX4M2B3000C15 Vengeance LPX 16 GB (2 x 8 GB) RAM
  Corsair VS650 650 W PSU
  Kingston SA400S37/240G SSD

I've tried:

• 
  Thorough read of motherboard user guide to ensure everything is in the right place and has adequate power
  Checking compatibility of RAM with motherboard (wasn't easy but it seems it should be compatible from browsing other forums with people with the same specs that can boot)
  Swapping RAM, and just using one to boot (and trying vice versa)
  Checking motherboard is fixed to case correctly and nothing could be causing a short
  Ensuring CPU is connected properly and pins not bent
  Ensuring CPU thermal paste isn't spread too liberally
  Resetting the CMOS
  Checking all components are tight in their sockets
  Consistently throughout the build I made sure I was grounded, to prevent any static damage

I would really appreciate any help, i'm struggling! I don't have a motherboard speaker to try and debug.

 

[alexoiu]

The board needs a BIOS update for supporting that CPU https://www.gigabyte.com/us/Motherboard/GA-AB350-Gaming-rev-1x#support-cpu
Check https://www.amd.com/en/support/kb/faq/pa-100

 

[cjmcguicken]

How can i check the current BIOS version of the motherboard (as shipped)? Seems a pain to fix, as I'll have to get it sent back to the manufacture.

Update: I've messaged the manufacturers with the SN to check. The BIOS version is indeed not up-to-date for the processor, I will send off the motherboard for a BIOS upgrade. Will post back if this fixes the issue

 

[alexoiu]

You can contact AMD and ask for a boot kit.