# NVENC: InitializeEncoder failed: gpuid:0 result:80004005

**URL:** <https://community.wowza.com/t/nvenc-initializeencoder-failed-gpuid-0-result-80004005/35594>\
**Category:** Wowza Streaming Engine\
**Created:** [October 3, 2014, 11:32am UTC](https://community.wowza.com/t/nvenc-initializeencoder-failed-gpuid-0-result-80004005/35594 "2014-10-03T11:32:27Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![prasad\_ramassamy](https://avatars.discourse-cdn.com/v4/letter/p/4bbf92/32.png) [@prasad\_ramassamy](https://community.wowza.com/u/prasad_ramassamy)\
**Post date:** [October 3, 2014, 11:32am UTC](https://community.wowza.com/t/nvenc-initializeencoder-failed-gpuid-0-result-80004005/35594/1 "2014-10-03T11:32:27Z")

</div>

Hello,

I’m trying to implement NVENC encoding in Transcoder, but when I set more than 2 Encodes, the third and fourth ones don’t start.

Here is what I can see in logs:

```auto
2014-10-03	11:57:43	CEST	comment	server	INFO	200	-	JNI:TranscoderSession.videoEncoderAdd[_defaultVHost_:live/_definst_/prasad:720p]: Create video encoder: H.264: NVENC	-	-	-	9.744
2014-10-03	11:57:43	CEST	comment	server	INFO	200	-	JNI:TranscoderSession.videoEncoderAdd[_defaultVHost_:live/_definst_/prasad:160p]: Create video encoder: H.264: NVENC	-	-	-	9.927
2014-10-03	11:57:44	CEST	comment	server	INFO	200	-	JNI:TranscoderSession.videoEncoderAdd[_defaultVHost_:live/_definst_/prasad:360p]: Create video encoder: H.264: NVENC	-	-	-	10.061
2014-10-03	11:57:44	CEST	comment	server	WARN	200	-	JNI:VideoEncoderH264NVENC.initialize[_defaultVHost_:live/_definst_/prasad:360p]: InitializeEncoder failed: gpuid:0 result:80004005	-	-	-	10.177
2014-10-03	11:57:44	CEST	comment	server	INFO	200	-	JNI:TranscoderSession.videoEncoderAdd[_defaultVHost_:live/_definst_/prasad:240p]: Create video encoder: H.264: NVENC	-	-	-	10.177
2014-10-03	11:57:44	CEST	comment	server	WARN	200	-	JNI:VideoEncoderH264NVENC.initialize[_defaultVHost_:live/_definst_/prasad:240p]: InitializeEncoder failed: gpuid:0 result:80004005	-	-	-	10.299
2014-10-03	11:57:44	CEST	encoder-video-start	transcoder	INFO	200	prasad	{name:"160p", bitrate:200000, codec:H264, profile:Baseline, level:1.3, frameSize:284x160, displaySize:284x160, frameRate:50.0}	-	-	-	10.346
2014-10-03	11:57:44	CEST	encoder-video-start	transcoder	INFO	200	prasad	{name:"720p", bitrate:1300000, codec:H264, profile:Main, level:3.2, frameSize:1280x720, displaySize:1280x720, frameRate:50.0}	-	-	-	10.376

```

The Os is Windows 8.1 64 bit.

I have tested with a GeForce GTX 650 Ti and a Quadro K620, with latest drivers, and I have this problem with both…

Best regards,

Prâsad.

---

<div class="post-metadata">

**Author:** ![Jason\_Hilton](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/jason_hilton/32/437_2.png) [@Jason\_Hilton](https://community.wowza.com/u/Jason_Hilton)\
**Post date:** [October 3, 2014, 5:40pm UTC](https://community.wowza.com/t/nvenc-initializeencoder-failed-gpuid-0-result-80004005/35594/2 "2014-10-03T17:40:23Z")

</div>

Hi,

Please see the [Server specifications for NVIDIA NVENC and NVIDIA CUDA acceleration with Wowza Transcoder AddOn](https://www.wowza.com/docs/server-specifications-for-nvidia-nvenc-and-nvidia-cuda-acceleration-with-wowza-transcoder) for a list of supported cards.

Note that the Quadro K620 is not listed and thus not supported using the Wowza transcoder. I recommend trying one of the supported cards or using the CPU (Implementation: “default” in the transcoding template) for transcoding.

```auto
<Implementation>default</Implementation>

```

Regards,

Jason

---

<div class="post-metadata">

**Author:** ![prasad\_ramassamy](https://avatars.discourse-cdn.com/v4/letter/p/4bbf92/32.png) [@prasad\_ramassamy](https://community.wowza.com/u/prasad_ramassamy)\
**Post date:** [October 6, 2014, 9:16am UTC](https://community.wowza.com/t/nvenc-initializeencoder-failed-gpuid-0-result-80004005/35594/3 "2014-10-06T09:16:11Z")

</div>

Thanks,

I saw that GeForce hardware can support a maximum of 2 concurrent streams per system…

I suppose it is the same on Quadro k620.

Prâsad.