Recently game started crashing: screen goes black but music keeps playing for few seconds (but no sound effects), then "no signal" appears on monitor and I have to hard reset my PC.

It only ever happens in 4 man dungeons during boss fight. It doesn't happen every time except for final boss of newest dungeon: when his big wave attack is about to hit game crashes.

I tried reinstalling the game and even Windows but it didn't help. Never happened in other games.

Code:
-=-=-=-=-=-=- FFXIV Information -=-=-=-=-=-=-

MyDocument	C:\Users\Pepe\Documents
FINAL FANTASY XIV ONLINE	C:\Program Files (x86)\SquareEnix
FINAL FANTASY XIV - A Realm Reborn	Language 1		Region 3
ProxyEnable 0
ProxyServer unspecified
ProxyOverride unspecified


-=-=-=-=-=-=- System Information -=-=-=-=-=-=-

SYSTEM_OS	Windows 7 Home Basic 64-bitowy (6.1, kompilacja 7601) Service Pack 1 (7601.win7sp1_ldr.170209-0600)
SYSTEM_CPU	Intel(R) Core(TM) i5-7400 CPU @ 3.00GHz (4 CPUs), ~3.0GHz
SYSTEM_CORE_NUM	SYSTEM_CORE_LOGIC 4  SYSTEM_CORE_PHYSICS 4
SYSTEM_BIOS	Default System BIOS
SYSTEM_LANGUAGE	polski (Ustawienia regionalne: polski)
SYSTEM_MEMORY	8154.633MB
SYSTEM_VIRTUAL_MEMORY	8388607.875MB
SYSTEM_PAGE_FILE	16307.449MB
SYSTEM_STORAGE	C:\    SYSTEM_HARDDISK_DRIVE    SYSTEM_TOTALDISC_SPACE 223.471GB    SYSTEM_FREEDISC_SPACE 68.116GB
SYSTEM_DIRECTX_VERSION	DirectX 11
SYSTEM_GRAPHICS	Radeon (TM) RX 470 Graphics
SYSTEM_GRAPHICS_DEVICE	\\.\DISPLAY1
SYSTEM_GRAPHICS_CHIP	AMD Radeon Graphics Processor (0x67DF)
SYSTEM_GRAPHICS_MAKER	Advanced Micro Devices, Inc.
SYSTEM_GRAPHICS_VRAM	4073.168 MB
SYSTEM_GRAPHICS_SHARED_VRAM	3821.316 MB
SYSTEM_GRAPHICS_DAC	Internal DAC(400MHz)
SYSTEM_GRAPHICS_DISPLAY_MODE	1920 x 1080 (32 bit) (59Hz)
SYSTEM_GRAPHICS_DRIVER	aticfx64.dll,aticfx64.dll,aticfx64.dll,amdxc64.dll,aticfx32,aticfx32,aticfx32,amdxc32,atiumd64.dll,atidxx64.dll,atidxx64.dll,atiumdag,atidxx32,atidxx32,atiumdva,atiumd6a.cap,atitmm64.dll
SYSTEM_GRAPHICS_DRIVER_VERSION	27.20.20913.2000
SYSTEM_GRAPHICS_DRIVER_DATE	02.08.2022 17:18:38
SYSTEM_GRAPHICS_DRIVER_LANGUAGE	Angielski
3.0
SYSTEM_GRAPHICS_PIXEL_SHADER	3.0
SYSTEM_GRAPHICS_VERTEX_TEXTURE	SYSTEM_SUPPORT
SYSTEM_SOUND	Głośniki (Realtek High Definition Audio)
SYSTEM_SOUND_DEVICE_ID	{B11AA9C8-F305-4718-9BCB-032F31683EBE}
SYSTEM_SOUND_DEVICE_NAME	RTKVHD64.sys
SYSTEM_SOUND_DRIVER_VERSION	6.00.0001.7945
SYSTEM_SOUND_DRIVER_LANGUAGE	Angielski
SYSTEM_SOUND_DRIVER_DATE	03.10.2016 07:31:12
SYSTEM_INPUT	{6F1D2B60-D5A0-11CF-BFC7444553540000}
SYSTEM_INPUT_NAME	Mysz
SYSTEM_INPUT_REMARKS	SYSTEM_GAMEPAD_AXIS 3  SYSTEM_GAMEPAD_BUTTON 5  SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT	{6F1D2B61-D5A0-11CF-BFC7444553540000}
SYSTEM_INPUT_NAME	Klawiatura
SYSTEM_INPUT_REMARKS	SYSTEM_GAMEPAD_AXIS 0  SYSTEM_GAMEPAD_BUTTON 128  SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT	{0165F130-E1E2-11ED-8006444553540000}
SYSTEM_INPUT_NAME	Controller (XBOX One For Windows)
SYSTEM_INPUT_REMARKS	SYSTEM_GAMEPAD_AXIS 5  SYSTEM_GAMEPAD_BUTTON 10  SYSTEM_GAMEPAD_FOV 1
SYSTEM_INPUT	{DB011AC0-E1E0-11ED-8001444553540000}
SYSTEM_INPUT_NAME	Gaming Mouse
SYSTEM_INPUT_REMARKS	SYSTEM_GAMEPAD_AXIS 0  SYSTEM_GAMEPAD_BUTTON 0  SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT	{DB011AC0-E1E0-11ED-8002444553540000}
SYSTEM_INPUT_NAME	Gaming Mouse
SYSTEM_INPUT_REMARKS	SYSTEM_GAMEPAD_AXIS 0  SYSTEM_GAMEPAD_BUTTON 669  SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT	{DB011AC0-E1E0-11ED-8003444553540000}
SYSTEM_INPUT_NAME	USB Keyboard
SYSTEM_INPUT_REMARKS	SYSTEM_GAMEPAD_AXIS 0  SYSTEM_GAMEPAD_BUTTON 897  SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT	{DB011AC0-E1E0-11ED-8004444553540000}
SYSTEM_INPUT_NAME	USB Keyboard
SYSTEM_INPUT_REMARKS	SYSTEM_GAMEPAD_AXIS 0  SYSTEM_GAMEPAD_BUTTON 3  SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT	{DB011AC0-E1E0-11ED-8005444553540000}
SYSTEM_INPUT_NAME	USB Keyboard
SYSTEM_INPUT_REMARKS	SYSTEM_GAMEPAD_AXIS 0  SYSTEM_GAMEPAD_BUTTON 0  SYSTEM_GAMEPAD_FOV 0


-=-=-=-=-=-=- Application Information -=-=-=-=-=-=-

FFXIVLauncher
Technical Support - Post New Thread - Google Chrome
FINAL FANTASY XIV


-=-=-=-=-=-=- Install Information -=-=-=-=-=-=-

Google Chrome
Steam
Microsoft Visual C++ 2013 Redistributable (x64) - 12.0.30501
Microsoft VC++ redistributables repacked.
Intel(R) USB 3.0\3.1 eXtensible Host Controller Driver
FINAL FANTASY XIV ONLINE
Microsoft Visual C++ 2015 Redistributable (x86) - 14.0.23918
Microsoft Visual C++ 2012 Redistributable (x86) - 11.0.61030
Dungeon Siege II
Microsoft Visual C++ 2015-2019 Redistributable (x64) - 14.25.28508
Realtek Ethernet Controller Driver
Update for Microsoft .NET Framework 4.6.1 (KB3210136)
Microsoft Visual C++ 2012 x86 Additional Runtime - 11.0.61030
Microsoft Visual C++ 2015 x86 Minimum Runtime - 14.0.23918
Oprogramowanie mikroukładu Intel®
Microsoft Visual C++ 2012 x86 Minimum Runtime - 11.0.61030
Microsoft Visual C++ 2015 x86 Additional Runtime - 14.0.23918
Microsoft Visual C++ 2012 Redistributable (x64) - 11.0.61030
Realtek High Definition Audio Driver
Prototype
7-Zip 22.01 (x64)
AMD Software
The Great Ace Attorney Chronicles
FINAL FANTASY X/X-2 HD Remaster
Vulkan Run Time Libraries 1.0.17.0
Intel(R) Management Engine Components
Microsoft Visual C++ 2012 x64 Additional Runtime - 11.0.61030
Intel(R) Management Engine Components
Microsoft VC++ redistributables repacked.
Intel® Trusted Connect Service Client
Microsoft Visual C++ 2019 X64 Additional Runtime - 14.25.28508
Intel(R) Chipset Device Software
Microsoft Visual C++ 2013 x64 Additional Runtime - 12.0.21005
Microsoft .NET Framework 4.6.1
Microsoft .NET Framework 4.6.1 (Polski)
Microsoft Visual C++ 2013 x64 Minimum Runtime - 12.0.21005
Intel(R) Management Engine Components
Microsoft .NET Framework 4.6.1
Microsoft Visual C++ 2012 x64 Minimum Runtime - 11.0.61030
Microsoft .NET Framework 4.6.1 (PLK)
Microsoft Xbox One Controller for Windows
Microsoft Visual C++ 2019 X64 Minimum Runtime - 14.25.28508


-=-=-=-=-=-=- Proccess Information -=-=-=-=-=-=-

C:\Program Files (x86)\Intel\Intel(R) USB 3.0 3.1 eXtensible Host Controller Driver\Application\iusb3mon.exe	000005F8
C:\Program Files (x86)\SquareEnix\FINAL FANTASY XIV - A Realm Reborn\boot\ffxivlauncher.exe	00000C08
C:\Program Files (x86)\SquareEnix\FINAL FANTASY XIV - A Realm Reborn\boot\ffxivsysinfo64.exe	00000E34
C:\Program Files (x86)\SquareEnix\FINAL FANTASY XIV - A Realm Reborn\game\ffxiv_dx11.exe	00000B40
C:\Program Files\Google\Chrome\Application\chrome.exe	00000964
C:\Program Files\Realtek\Audio\HDA\RtkNGUI64.exe	00000444
C:\Windows\Explorer.EXE	00000564
C:\Windows\system32\Dwm.exe	0000086C
C:\Windows\system32\taskhost.exe	00000770