Here's the first part of my DxDiag output.  Full file attached below.
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System Information
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Time of this report: 10/30/2017, 07:03:52
       Machine name: CORSAIR-PC
   Operating System: Windows 7 Home Premium 64-bit (6.1, Build 7601) Service Pack 1 (7601.win7sp1_ldr.170913-0600)
           Language: English (Regional Setting: English)
System Manufacturer: To Be Filled By O.E.M.
       System Model: To Be Filled By O.E.M.
               BIOS: BIOS Date: 04/23/14 13:08:31 Ver: 04.06.05
          Processor: Intel(R) Core(TM) i5-4590 CPU @ 3.30GHz (4 CPUs), ~3.3GHz
             Memory: 16384MB RAM
Available OS Memory: 16320MB RAM
          Page File: 4267MB used, 28369MB available
        Windows Dir: C:\Windows
    DirectX Version: DirectX 11
DX Setup Parameters: Not found
   User DPI Setting: 96 DPI (100 percent)
 System DPI Setting: 96 DPI (100 percent)
    DWM DPI Scaling: Disabled
     DxDiag Version: 6.01.7601.17514 64bit Unicode
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DxDiag Notes
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      Display Tab 1: The file aticfx64.dll,aticfx64.dll,aticfx64.dll,aticfx32,aticfx32,aticfx32,atiumd64.dll,atidxx64.dll,atidxx64.dll,atiumdag,atidxx32,atidxx32,atiumdva,atiumd6a.cap,atitmm64.dll is not digitally signed, which means that it has not been tested by Microsoft's Windows Hardware Quality Labs (WHQL).  You may be able to get a WHQL logo'd driver from the hardware manufacturer.
        Sound Tab 1: No problems found.
        Sound Tab 2: No problems found.
        Sound Tab 3: No problems found.
          Input Tab: No problems found.
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DirectX Debug Levels
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Direct3D:    0/4 (retail)
DirectDraw:  0/4 (retail)
DirectInput: 0/5 (retail)
DirectMusic: 0/5 (retail)
DirectPlay:  0/9 (retail)
DirectSound: 0/5 (retail)
DirectShow:  0/6 (retail)
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Display Devices
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          Card name: Radeon (TM) RX 480 Graphics
       Manufacturer: Advanced Micro Devices, Inc.
          Chip type: AMD Radeon Graphics Processor (0x67DF)
           DAC type: Internal DAC(400MHz)
         Device Key: Enum\PCI\VEN_1002&DEV_67DF&SUBSYS_34151462&REV_C7
     Display Memory: 3783 MB
   Dedicated Memory: 4039 MB
      Shared Memory: 3840 MB
       Current Mode: 1920 x 1080 (32 bit) (59Hz)
       Monitor Name: Generic PnP Monitor
      Monitor Model: S27D590C
         Monitor Id: SAM0BEA
        Native Mode: 1920 x 1080(p) (60.000Hz)
        Output Type: Displayport External
        Driver Name: aticfx64.dll,aticfx64.dll,aticfx64.dll,aticfx32,aticfx32,aticfx32,atiumd64.dll,atidxx64.dll,atidxx64.dll,atiumdag,atidxx32,atidxx32,atiumdva,atiumd6a.cap,atitmm64.dll
Driver File Version: 22.19.0676.0004 (English)
     Driver Version: 22.19.676.4
        DDI Version: 11
       Driver Model: WDDM 1.1
  Driver Attributes: Final Retail
   Driver Date/Size: 9/1/2017 18:31:12, 1919560 bytes
        WHQL Logo'd: No
    WHQL Date Stamp: None
  Device Identifier: {D7B71EE2-249F-11CF-D677-B1167BC2DB35}
          Vendor ID: 0x1002
          Device ID: 0x67DF
          SubSys ID: 0x34151462
        Revision ID: 0x00C7
 Driver Strong Name: oem10.inf:ATI.Mfg.NTamd64.6.1:ati2mtag_Polaris10:22.19.676.4:pci\ven_1002&dev_67df&rev_c7
     Rank Of Driver: 00E62000
        Video Accel: 
      Deinterlace Caps: n/a
       D3D9 Overlay: Not Supported
            DXVA-HD: Not Supported
       DDraw Status: Enabled
         D3D Status: Enabled
         AGP Status: Enabled
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Sound Devices
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            Description: Speakers (Realtek High Definition Audio)
 Default Sound Playback: Yes
 Default Voice Playback: Yes
            Hardware ID: HDAUDIO\FUNC_01&VEN_10EC&DEV_0892&SUBSYS_1849D892&REV_1003
        Manufacturer ID: 1
             Product ID: 100
                   Type: WDM
            Driver Name: RTKVHD64.sys
         Driver Version: 6.00.0001.7004 (English)
      Driver Attributes: Final Retail
            WHQL Logo'd: Yes
          Date and Size: 7/30/2013 06:16:46, 3564376 bytes
            Other Files: 
        Driver Provider: Realtek Semiconductor Corp.
         HW Accel Level: Basic
              Cap Flags: 0xF1F
    Min/Max Sample Rate: 100, 200000
Static/Strm HW Mix Bufs: 1, 0
 Static/Strm HW 3D Bufs: 0, 0
              HW Memory: 0
       Voice Management: No
 EAX(tm) 2.0 Listen/Src: No, No
   I3DL2(tm) Listen/Src: No, No
Sensaura(tm) ZoomFX(tm): No
            Description: 1 - S27D590C (AMD High Definition Audio Device)
 Default Sound Playback: No
 Default Voice Playback: No
            Hardware ID: HDAUDIO\FUNC_01&VEN_1002&DEV_AA01&SUBSYS_00AA0100&REV_1007
        Manufacturer ID: 1
             Product ID: 100
                   Type: WDM
            Driver Name: AtihdW76.sys
         Driver Version: 7.12.0000.7725 (English)
      Driver Attributes: Final Retail
            WHQL Logo'd: Yes
          Date and Size: 7/6/2017 15:42:38, 96256 bytes
            Other Files: 
        Driver Provider: Advanced Micro Devices
         HW Accel Level: Basic
              Cap Flags: 0xF1F
    Min/Max Sample Rate: 100, 200000
Static/Strm HW Mix Bufs: 1, 0
 Static/Strm HW 3D Bufs: 0, 0
              HW Memory: 0
       Voice Management: No
 EAX(tm) 2.0 Listen/Src: No, No
   I3DL2(tm) Listen/Src: No, No
Sensaura(tm) ZoomFX(tm): No
            Description: Realtek Digital Output (Realtek High Definition Audio)
 Default Sound Playback: No
 Default Voice Playback: No
            Hardware ID: HDAUDIO\FUNC_01&VEN_10EC&DEV_0892&SUBSYS_1849D892&REV_1003
        Manufacturer ID: 1
             Product ID: 100
                   Type: WDM
            Driver Name: RTKVHD64.sys
         Driver Version: 6.00.0001.7004 (English)
      Driver Attributes: Final Retail
            WHQL Logo'd: Yes
          Date and Size: 7/30/2013 06:16:46, 3564376 bytes
            Other Files: 
        Driver Provider: Realtek Semiconductor Corp.
         HW Accel Level: Basic
              Cap Flags: 0xF1F
    Min/Max Sample Rate: 100, 200000
Static/Strm HW Mix Bufs: 1, 0
 Static/Strm HW 3D Bufs: 0, 0
              HW Memory: 0
       Voice Management: No
 EAX(tm) 2.0 Listen/Src: No, No
   I3DL2(tm) Listen/Src: No, No
Sensaura(tm) ZoomFX(tm): No