[硬件求助] 显卡降频游戏正常，默频打开游戏必定未响应

RT。不知道什么原因，之前默频玩游戏没啥问题，现在玩游戏不管是啥稍微大点的游戏，必然需要显卡降频50-100才能正常游戏，
例子玩魔兽的时候，如果我不降频打开过一会必定未响应然后就卡住白屏了，但是电脑桌面什么的是正常的，只能右上角关掉游戏，
麻烦各位大佬帮我看下到底什么问题
电源是EVGA G2 750模组

  主板  
处理器名称  HexaCore Intel Core i7-8086K, 4300 MHz (43 x 100)
主板名称  Asus ROG Maximus X Hero Wi-Fi AC (3 PCI-E x1, 3 PCI-E x16, 2 M.2, 4 DDR4 DIMM, Audio, Video, Gigabit LAN, WiFi)
主板芯片组  Intel Kaby Point Z370, Intel Coffee Lake-S
系统内存  16311 MB (DDR4 SDRAM)
DIMM1: Galaxy Microsystems  8 GB DDR4-3600 DDR4 SDRAM (17-18-18-38 @ 1801 MHz)
DIMM3: Galaxy Microsystems  8 GB DDR4-3600 DDR4 SDRAM (17-18-18-38 @ 1801 MHz)
BIOS 类型  AMI (07/02/2019)
  显示设备  
显示适配器  NVIDIA GeForce RTX 2080 (8 GB)
显示适配器  NVIDIA GeForce RTX 2080 (8 GB)
显示适配器  NVIDIA GeForce RTX 2080 (8 GB)
显示适配器  NVIDIA GeForce RTX 2080 (8 GB)
3D 加速器  nVIDIA GeForce RTX 2080
显示器  Acer KG271U [27" TN LCD] (TATCN0018522)


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