plenty of power but horrible playback simple clip

[Steve Zeeeee]

I got plenty of ram for PPro 20GB allotted, and 3 GB graphics card

and a 80GB software scratch disk 300MB/sec read/write

yet playback at 1/4 rez and 25% screen size works, and then it

doesn't, then does, does not, off and on.  Render clip does nothing.

it's a 4K MP4 clip 20 sec

Cant even edit now

lost please advise

PPro 12.1.1 b10

[R Neil Haugen]

What created that media? And what is it?

There's a lot of people that think that 'simple' drone/DSLR mp4/mov H.264 media is 'simple' but in reality it's far harder on a CPU than much of the "pro" camera 10/12-bit 4k/6k stuff. That might be the issue here.

Neil

[Steve Zeeeee]

it was a sony RX100V file, tho I cant recall

if this is the apple pro rez LT file, but

it worked for a few days till SUDDENLY

thanks

[Peru Bob]

How full are your drives?

[Steve Zeeeee]

< 50%

[Bill Gehrke]

That model only has SATA II drive capability and lousy USB 2 so no real expansion of storage

Where are your Project files and the media files for that project?

[Steve Zeeeee]

Project and Media are on 100MB/sec read/write drives.
The odd thing, everything is fine, and SUDDENLY, just
a motion or scale change gums everything up, even tho

the whole previous 2 hours of editing worked well.

In this case, a computer restart got me running

adequately, but it will gum up again.

AACK first run of the day all frozen.

How do we edit under these circumstance?

And now SUDDENLY it does work.

[Bill Gehrke]

https://forums.adobe.com/people/Steve+Zeeeee  wrote

Project and Media are on 100MB/sec read/write drives.

Lousy setup

[Steve Zeeeee]

what else can be done?

But does that explain great performance, and then stalled?