Decklink 4k 12g Card Causing Stutter in Prem Pro 2020 CC

Hello,

I am pretty new to the forum and a inexperienced in the ways of video and was wondering if someone could maybe give me some help. (I am a High School teacher, working with HS video students, I have limited knowledge)

I recently bought a video computer from ADK Computers this summer and this is our first use of the machine. I know that it helps if I include computer specs. Here they are:


Quiet Case Options
1 x Quiet Black Mid Tower Case - 1x5.25" bays, 6x 3.5" HDD trays, 4x2.5" SSD Mount slots, 1x USB 3.1 Gen 2 Type C, 2x USB 3.0, 2x USB 2.0 front ports

Power Supply
1 x 1000 Watts Total Modular 80 Plus Platinum Quiet Power Supply - 7 Yr Warranty
Cool and Quiet

1 x ADK Built-In Quiet Treatment For Tower Cases

Motherboard
1 x ADK AMD TRX40 Pro - Up to 256Gig ram, 3x PCIe 4.0 x16, x16/x16, 8x Sata 6Gb/s, 3x M.2/NVMe, USB3.2 Gen 2/USB C, 1x Gigabit LAN

Processor - AMD Socket sTRX4
1 x AMD Ryzen Threadripper 3960X Processor (24 Core/48 Thread, 3.8 GHz Max 4.5GHz)

Memory - 256GB Max
1 x 64 Gigs (4 x 16 Gigs) DDR4 3200

Video Card Options for Extreme X2
1 x GeForce RTX 2070 8GB GDDR6 - 2304 Cuda Core, 1410 MHz - 2x(HDMI 2.0b) 2x Display Port

Hard Drive - Operating System/Program Drive
1 x Samsung 970 EVO PLUS NVMe M.2 500GB SSD

Hard Drive- Project Drive
1 x Samsung 970 EVO PLUS NVMe M.2 1TB SSD

Hard Drive-Sample Libraries
1 x Samsung 860 EVO 2TB Internal SSD

Video HD Output card
1 x DeckLink 4K Extreme 12G

Card Reader
1 x USB 3.0 Flash Card Reader/Writer

Warranty
1 x 2 Year ADK Desktop Parts and Labor Warranty with LIFETIME Tech Support
Build & Testing
1 x Standard Build & Testing - ADK TRX Audio Forge

What is happening is that ANY video i put on the Prem Pro 2020 Timeline stutters during playback. It stutters in the source window, it stutters in the program window....it does not matter if it is at 1/4 resolution, or full.

It also does not matter what format of video.....i tried mov, conversion to mxf, h.264...and they all have the exact same stutter.

I worked w/ a tech and we tried the following:

1. Uninstall and new install of: Black magic software for Deck link card.
2. Uninstall and new install of: Premiere Pro
3. Updated nvidia drivers:
4. Rolled back and tried PPCC 2019
5. Rolled back and tried May release of Black Magic Software

None of these changes helped.

Our final try was to remove the blackmagic software from the computer. WE uninstalled it and Premiere Pro worked perfectly with all of those file types and sizes.

Does anyone have any ideas of what I should do next to be able to have the decklink card software loaded, working, etc...and still have it compatible with PP2020.

Thanks In advance for any and all help. I hope I have provided enough information, specs and stuff to have you help me.
Mike

Hello.

If your problem is the same as my problem, you may be able to solve it.
Please tell me the following information.

*File resolution and frame rate that causes problems
(ex. 3840x2160 / 59.94P)

*OS version of Windows 10
(1909? 2004?)

Regard.