I am a video editor. And I purchased a Intel (R) core (Tm) i5 -2400 CPU @ 3.10ghz with 8 gig ram running it with 64 bit. And with a minimum gpu of 128mb with nvidia quadro NVS 285 .But the configuration did not meet my needs since I bought my new gh5 and I recorded on a 4k quality. I tried but can't edit the 4k footage with the configurations I have and I went to upgrade the gpu but found out that my power supply unit does not have a cable that will fit into the gpu. I dont know what to do I think am stuck with this. Can anyone help me out I will really appreciate.