That's where BIOS and/or Volt Mods come into play.
(EDIT: I don't know this socket but Pins mods were a thing at one time too but probably prior to 754. Am I right?)
I know, right? The problem I had was the BIOS would, in the two boards I could get to "reliably" boot it (an EPoX 8NPA, BioStar T-Force 630 ??? memory hazy) it wasn't that the board couldn't supply the volts (you could push 2v with "non-mobile" proc) it was the BIOS would initialize bizarro settings if you had a POST fail.
So I always had to have a "normal" non-mobile proc just to get the damn board to "recover", then swap in the mobile next boot. So yea you see the problem with a 1v+ voltmod lol. That first boot is gonna be some OLD SCHOOL volt lovins.
Who needs split voltage? 3volts to the proc is where it's at =D
EDIT ADD: I don't wanna thread hijack. I just love this old socket (it was very cheap and ton's 'o fun back in the day) and if someone can roll up or there is a verified non-funkytown "Lan Party UT NF3 250GB" bios out there that runs the 4000+ Newark, he literally would have the socket 754 beast box.
Random last bit remembering... people wondering why the 4000+ - had the 1MB cache, super high-binned chip. The 3700+ mobile I can't remember, still nice but the binning on the 4000+ was crazy good. But I also paid like $320 "oem" for the stupid thing too lol. Hey, I never said I was smart lol.
last bit. I gave the proc to a buddy who was going to do something with it. He never did. Lost it. =(