CalamityLime wrote on 2022-06-28, 04:50:
I read that they were not routed alright but that's okay. […]
Sphere478 wrote on 2022-06-28, 04:44:
CalamityLime wrote on 2022-06-28, 03:50:
I also may run into modding 3.3v into a 5v only pci soon. […]
I also may run into modding 3.3v into a 5v only pci soon.
Though, part of me is inclined to make a hybrid solution to what's been mentioned here. Just have to think about it a bit and look into specs.
Hint: i may try to resurrect the 5v to 3v3 card adapter idea.
Edit: or not, i thought pci would have -5 exposed on it but nope. Hmmm, still who knows. A card could give regulators some room to breathe regardless
Using a card to power other slots probably won’t work because the traces probably aren’t routed.
I think the nicest solution is to make a version of the freeway adapter that fits your board.
I read that they were not routed alright but that's okay.
Tl;Dr of what i had thought of
Build the 3v3 bus using things here,
Build a card to convert 5 or 12 v to 3.3v, injecting the 3.3 into the rest of the slots that way
And hopefully include -5 for those who need it but no -5 connection on pci.
At least in my situation, i have more free pci slots than space to leave things dangle around inside the case. But i could always just slurp up some 3.3 from the CPU io reg.
If you wanna make 3.3v from the pci slot, then it can be made on the back of the board without using a slot. The regulators speced for converting 5v to 3.3v for 486 chips seem like a good option. Depending on how much load the card is. But networking the adapters can share the load.
Anyway, that’s something I was wanting to do eventually. But feel free to take the reins. No worries.
The pcb for the gigabyte iRam is probably a good place to start for that. I have all the stuff routed to the far side. Gnd, 5v, 12v, 3.3v and the 5/3.3v all seperate.
Feel free to snag it and start hacking 😀
As for heat from those linear regualtors, If networked, I don’t think it will be a problem. Most of the cards that you would use on these systems anyway, I don’t believe use a whole lot of amperage on the 3.3v rail.