I am planning on having custom PCI-express cables made for my 3090. However, I find it hard to imagine how I will be able to configure the cables to look neat. Since the EVGA DG-86 gaming case does not have bottom grommet holes to slide the PCI-Express cables through. The cables will sag and look all loose inside the case at the bottom. I want the cables to look neat and tucked under the card like so many pictures of other computer cases I've seen online sporting the 3090 and PCI-express cables. I wonder how it would work. How how long should the custom-made PCI-express cables be? Would I need some type of custom grommet cut-out inside the case?  The EVGA DG86 Case is tall and wide. It's a shame the case has no bottom grommet holes to utilize for the 3090 and to make the cable management look neat. It's all sloppy joe from here until I can get some ideas from the forum. 
 
EVGA DG86 Gaming Case
 

 
 
Current PCI-express cable configuration on my 3090 The cables are all loose and hang and set at the bottom of the case.
 

 

 
How I would like my cable management to look on the 3090 I want all the PCI-express cables to be neatly tucked under the 3090 graphics card. I think the only real way to accomplish this is to buy a new computer case or cut a grommet hole for the PCI-express cables to slide through. 
 

Cool GTX
Hook & Loop ties & a build a "S" shaped bend in your cables, so near the MB tray there is some support
 
may have to add a mounting point to the MB tray

 
Do you know where I can buy the hook and loop ties or combs in the color solid black? Also, what does a mounting point look like? I'm serious about having custom PCI-express cables. They will be colors black and blue. I'm not sure about the length of the cable. I will measure the ones already in the case. The "S" sounds about the only option aside from you being able to point of those parts I could buy. Please advise?

Another think you can do is use 24pin ATX combs instead of 3 separate 8 pin combs if you like that look. It will basically look like a solid 24 pin power cable. Something like this
 
https://imgur.com/gallery/Td1J5IP

If I want to build a firm-tight "S" shaped bend for my PCI-express cables that leads to my 3090 Is there a company that sells pci-express cable combs that contour, form, and bend to the desired shape to form an S shape? Perhaps with qtys. of said parts? I know zip ties suck and won't do it. What would you guys recommend? Here's a picture of my current cable management in the EVGA DG-86 series case. I see some of the recommendations. I'm still hoping for a couple of more suggestions before I start my tech project. 
 

 
 

erayser
I know I have a different case... but I just used a 24 pin combs to keep my pci-e cables neat and look like one cable... same combs used on the mobo 24 pin cable.   I went over the top so it won't cover up the RGB lighting bar and ftw3 badge, and also hopefully help reduce GPU sag.
 

That looks sweet! Does your Corsair case have a grommet entryway? So those pci-express cables slide through ever so easily? Also, does having reinforced PCI-Express motherboard slots help with GPU sag?
 

I used some ATX 24 Pin Cable combs to clean it up. Wanted to see the LED logo on the top so ran it below. 
 

I use a CableMod Pro full replacement cable kit for a Corsair AX 1200I PSU and just ordered CableMod's PRO Bridged Cable Comb Kit-Black which should match my existing combs nicely.