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[riskVSreward]

It records 1080p with a bunch of artifacts and blur! If I switch the video source down to 1080i or 720p, it handles it fine.

It's the StarTech "PEXHDCAP60L" found here.

I have tried different HDMI cables,different drivers (StarTech's own and manufacturer's), different PCIe slots, even different cards as StarTech sent me a replacement. The problem persists, so surely it's something to do with my PC. I even happened to change GPUs during this and the problem was still exactly the same. Does your PC specs matter that much when using a PCI card to capture/encode? Is there some obscure BIOS toggle related to PCI? I feel like I've ruled out everything but the motherboard itself.

Asus Sabertooth x58 mobo
i7 950 @ 3.07 cpu
GTX 650 Ti gpu
12g ddr3
Win7 64-bit

I really hope someone can help me out! Thanks.

 

[Schrade]

That's not PCI. That's PCI Express.

Also, can you give an example of the "blur" and artifacts?

 

[TheTurboFD]

Could be a write speed issue, have you tried testing the speed of your HDD to make sure it can keep up with the capture cards write speed?. It sounds like this due to the fact that it doesnt occur at lower bit rates meaning it requires less write speed to the HDD.

 

[riskVSreward]

That's not PCI. That's PCI Express.

Also, can you give an example of the "blur" and artifacts?

Sure, I can make a quick gif or something.

Could be a write speed issue, have you tried testing the speed of your HDD to make sure it can keep up with the capture cards write speed?. It sounds like this due to the fact that it doesnt occur at lower bit rates meaning it requires less write speed to the HDD.

How can I test the speed, and how would I know if it's acceptable? The C drive is at like 95% capacity and I could stand to clean it up.

 

[TheTurboFD]

Sure, I can make a quick gif or something.

How can I test the speed, and how would I know if it's acceptable? The C drive is at like 95% capacity and I could stand to clean it up.

You can download this

http://www.buildcomputers.net/hard-drive-benchmark.html

and test. You will have to check your capture cards requirements to see the required write speed.

 

[riskVSreward]

Example

You can download this

http://www.buildcomputers.net/hard-drive-benchmark.html

and test. You will have to check your capture cards requirements to see the required write speed.

I'll check that out.

 

[TheTurboFD]

Example


I'll check that out.

Hmm does the program you use to capture have an option for de-interlacing?

 

[riskVSreward]

Yeah, I messed with all the de-interlacing options, I don't think they're related.

I can't find any information about the card's required write speed.

 

[Omegabalmung9]

Yeah, I messed with all the de-interlacing options, I don't think they're related.

I can't find any information about the card's required write speed.

If i remember right, i think you need 90+ for write if you are recording at 1080p 60fps.

Edit: I would suggest you get another hdd for recording and not use your c drive

 

[riskVSreward]

If i remember right, i think you need 90+ for write if you are recording at 1080p 60fps.

Edit: I would suggest you get another hdd for recording and not use your c drive

I have other drives that I would rather use, but no idea how to toggle that. This happens even when I'm not recording though, this is just viewing the capture.

Looking at my mobo spec, I'm seeing that the PCIe x1 slot I'm using isn't PCIe 2.0, whereas the x16 slot which I believe I'm not using is PCIe 2.0 Maybe I should try swapping it over...

 

[Omegabalmung9]

I have other drives that I would rather use, but no idea how to toggle that. This happens even when I'm not recording though, this is just viewing the capture.

Looking at my mobo spec, I'm seeing that the PCIe x1 slot I'm using isn't PCIe 2.0, whereas the x16 slot which I believe I'm not using is PCIe 2.0 Maybe I should try swapping it over...

Yeah try that first and see if it helps. If not try to download a program called amerectv and see if there is a difference.

 

[Freshmaker]

May just be your capture bitrate's too low. That kind of artifacting is typical of a capture that's demanding more info than the bitrate can actually support.

 

[riskVSreward]

And thus ends my 2 week long headache. I had no idea it was PCI 2.0, but it's running super smooth now. It's basically touching my gpu now but I think it'll be ok.

Thanks for the help.