# Hardware-Accelerated Streaming not working
**URL:** https://forums.plex.tv/t/hardware-accelerated-streaming-not-working/828309
**Category:** Plex Media Server
**Tags:** server-windows
**Created:** [January 26, 2023, 9:30am UTC](https://forums.plex.tv/t/hardware-accelerated-streaming-not-working/828309 "2023-01-26T09:30:49Z")
**Posts on this page:** 9
**Page:** 1
### Author:  [@nickbro46](https://forums.plex.tv/u/nickbro46)
#### Post date: [January 26, 2023, 9:30am UTC](https://forums.plex.tv/t/hardware-accelerated-streaming-not-working/828309/1 "2023-01-26T09:30:49Z")
Server Version#: Version 4.87.2
Player Version#:
I just signed for plex pass.
i tried streaming a video to my iPhone, but the Hardware Acceleration not working, my CPU is at 100%
i have a 2nd generation intel processor with quick sync video
Intel(R) Core™ i5-2500 CPU @ 3.30GHz, Intel64 Family 6 Model 42
what can i do?
thanks
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### Author:  [@OttoKerner](https://forums.plex.tv/u/OttoKerner)
#### Post date: [January 26, 2023, 9:33am UTC](https://forums.plex.tv/t/hardware-accelerated-streaming-not-working/828309/2 "2023-01-26T09:33:31Z")
Stop and restart your server, so it can get notified about the Plex Pass.
Peruse this document: [https://support.plex.tv/articles/115002178853-using-hardware-accelerated-streaming/](https://support.plex.tv/articles/115002178853-using-hardware-accelerated-streaming/)
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### Author:  [@OttoKerner](https://forums.plex.tv/u/OttoKerner)
#### Post date: [January 26, 2023, 9:37am UTC](https://forums.plex.tv/t/hardware-accelerated-streaming-not-working/828309/3 "2023-01-26T09:37:58Z")
> [@nickbro46](#):
>
> i have a 2nd generation intel processor with quick sync video
> Intel(R) Core™ i5-2500 CPU @ 3.30GHz, Intel64 Family 6 Model 42
This is a “Sandy Bridge” CPU. Its Quicksync implementation is quite limited by today’s standards.
> **[Intel Quick Sync Video | Hardware decoding and encoding](https://en.wikipedia.org/wiki/Intel_Quick_Sync_Video#Hardware_decoding_and_encoding)**
>
> Support for Quick Sync hardware accelerated decoding of H.264, MPEG-2, and VC-1 video is widely available. One common way to gain access to the technology on Microsoft Windows is by use of the free ffdshow filter. Some other free software like VLC media player (since version 2.1.0 "Rincewind") supports Quick Sync as well. Many commercial applications also benefit from the technology today, including CyberLink PowerDVD, CyberLink PowerDirector and MacroMotion Bogart "gold" edition.
> According to t...
It can only decode MPEG2, H.264(AVC), and VC-1 video.
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### Author:  [@nickbro46](https://forums.plex.tv/u/nickbro46)
#### Post date: [January 26, 2023, 9:45am UTC](https://forums.plex.tv/t/hardware-accelerated-streaming-not-working/828309/4 "2023-01-26T09:45:31Z")
So i cant t use hardware acceleration?
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### Author:  [@OttoKerner](https://forums.plex.tv/u/OttoKerner)
#### Post date: [January 26, 2023, 9:49am UTC](https://forums.plex.tv/t/hardware-accelerated-streaming-not-working/828309/5 "2023-01-26T09:49:38Z")
That largely depends on your source files.
Use the [Plex media info](https://support.plex.tv/hc/en-us/articles/201998867-Investigate-Media-Information-and-Formats) or other tools to determine what codecs they use.
But I reckon with this CPU, you will only ever be able to transcode fairly low-bitrate 1080p AVC video, without burning in subtitles.
4K (+HDR) is completely out of the picture, as it uses the HEVC codec and also usually comes with high-end lossless audio streams which even alone would bring your CPU down to its knees.
You can only use this kind of files with Plex clients which support the original file’s codecs natively, so they won’t require the server to transcode.
The numbers of such clients are fairly limited. “Plex for Windows/Mac/Linux”, “Plex HTPC”, and the nVidia Shield Pro are the main ones. And even these will probably only work if they have a GBit-Ethernet (wired) connection to the server.
Remote access is very unlikely to work with 4K/HDR.
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### Author:  [@nickbro46](https://forums.plex.tv/u/nickbro46)
#### Post date: [January 26, 2023, 10:18am UTC](https://forums.plex.tv/t/hardware-accelerated-streaming-not-working/828309/6 "2023-01-26T10:18:29Z")
I don’t use it for 4k movies
Only old family videos
but it still not working
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### Author:  [@OttoKerner](https://forums.plex.tv/u/OttoKerner)
#### Post date: [January 26, 2023, 10:19am UTC](https://forums.plex.tv/t/hardware-accelerated-streaming-not-working/828309/7 "2023-01-26T10:19:24Z")
Determine the video codec used in them, as mentioned above.
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### Author:  [@nickbro46](https://forums.plex.tv/u/nickbro46)
#### Post date: [January 27, 2023, 2:13pm UTC](https://forums.plex.tv/t/hardware-accelerated-streaming-not-working/828309/8 "2023-01-27T14:13:59Z")
OK, thanks
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### Author:  [@system](https://forums.plex.tv/u/system)
#### Post date: [April 27, 2023, 2:14pm UTC](https://forums.plex.tv/t/hardware-accelerated-streaming-not-working/828309/9 "2023-04-27T14:14:07Z")
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