Hi wyseguy
Welcome to the ROG forum.
The maximus viii formula supports 5050 led's with a 4 pin RGB connector, these led's do not have a 12v psu connector so I don't know how you'd go about doing this.
Another option would be to get a good fan controller such as the lamptron FC5-V3, it has 6 channels at 30 watts per channel for a total of up to 180 watts, you'll need fan splitter cables to connect alot of led's.
Dazmode has 12" led strips that are rated at 2.5 watts. 10 led strips would be 25 watts and 10 x 6 = 60 led strips you could run comfortably.
Fan controller -
https://www.amazon.com/FC5-Channel-30W-LED-Controller/dp/B00DQSTP0O/ref=sr_1_1?ie=UTF8&qid=146911789...12 lights per channel would be right at 30 watts so six 4 fan splitter cables - 6 of these or something similar -
https://www.amazon.com/Computer-Splitter-Connector-Sleeved-Adapter/dp/B00DYQSZ68Then 24 type 10s cables, 4 for each cable would allow you to connect 12 led strips to each fan splitter cable.
https://www.dazmode.com/store/search/?query=type+10s&records=16&x=13&y=15Extensions if needed -
https://www.dazmode.com/store/search/?query=darkside+connect+extension&records=16&x=15&y=17Then finally the led strips (up to 72 of these) select cable option no need -
https://www.dazmode.com/store/search/?query=darkside+connect+dimmable&records=16&x=19&y=16I know you won't use 72 led strips but this shows it is possible. You could do a color for each channel and have RGB lighting, the only draw back is they won't have any effects, you'd only be able to dim them off.
At 14.99 each for a 12" LED strip that adds up to quite alot.
To your original question the maximus viii formula can power one led strip up to 6 feet long as long as it doesn't exceed 24 watts as you mentioned. No more than 6 feet long is recommended for maximum brightness.
With another fan controller you could double the amount of LED's, I hope you get a kick out of this.
😄