I wouldn't worry about it.
9600 XT is AGP powered, which is up to ~48W. The card itself is a max of 22W. It's only going to need a couple amps from whichever rails.

https://en.wikipedia.org/wiki/Accelerated_Gra … wer_consumption
https://www.techpowerup.com/gpudb/30/radeon-9600-xt

...Unless you're putting eight ultra 160 drives in raid0 in this, then you should mention that. 😜

Also by "modern" PSU I assume you mean something that's <=400W and has all of those rails provided. Go by the label on the PSU. Post a picture or transcribe it here if still concerned.

I didn't see there was already a project origin thread with more info. I would have had more context and had more advice the first time around: Socket 462 mATX build: modern, silent, and future proof

I created a seperate thread as I was treating it as a standalone question unrelated to my in-progress Socket 462 build, as I felt this question could benefit from a more focused discussion.

Basically, if one wanted to use a high TDP Athlon XP/Sempron, and pair it with say a 9800 Pro/XT (striving for equal pairing and minimal cpu or gpu bottleneck), they would run into issues with a modern PSU.

To still achieve this result, a 12V rail reliant AGP card could offset a Socket 462 machine's reliance on the 5V rail, thus making Socket 462 more feasible on a modern PSU.

Candidates for this could be:

• Radeon X7xx/X8xx Series
• Radeon X1000 Series
• Radeon HD 2000 Series
• Radeon HD 3000 Series
• Radeon HD 4000 Series

(I am not sure what the exact nVidia equivelants would be, feel free to add.)

I did do a lot of research prior to starting this thread, and there are a lot of discussions talking about Socket 462 power packages, but almost all of them talk about Radeon 9xxx series rather than newer cards. Maybe a thread exists on this that I haven't found, or nobody has fully explored this yet.