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AMD Ryzen ™ 5 3400G with Radeon ™ RX Vega 11 Graphics  screen blackout

Question asked by 51berkay on Oct 30, 2019

Processor:
AMD Ryzen ™ 5 3400G with Radeon ™ RX Vega 11 Graphics

Motherboard: ASUS B450M-A

  [Memory manufacturer / model / specifications]
Corsair
VENGEANCE BLACK 16GB (2X8) 3200MHz DDR4 PC RAM

[Other]
ADATA XPG GAMMIX S11 Pro M.2 256GB SSD PCI Express 3.0 3D TLC NVMe AGAMMIXS11P-256GT-C

MONITOR: SyncMaster 923nw

 

Bios settings, Gpu mode settings, Extrem (1600Mhz) Mode and Turbo (1500Mhz) mode when I select the computer after a while the screen turns black and the PC is locked. Normal Auto (1400Mhz) is not a problem when I switch to mode.

I have tried the same problem with another monitor on hdmı and vga inputs. Why is this happening? Speed and quality are increasing in high modes. What should I do to use these modes?

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