Well, a bit more tweaking and this is what I got. Took out a stick of memory, boosted FSB to 150, memory to 200 and AGP and PCI to 66Mhz and 33Mhz respectively.
I haven't OC a 1900 in a long time. I do remember OC a 1600 just recently. It was a T-bred A and I got about a 400MHZ OC out of it without trying to hard. Start your voltage off at about 1.7 and raise your speed about 5mhz at a time and run prime 95 inbetween jumps to test for stability. When it becomes unstable increase your voltage, but keep an eye on your temps and don't let them get too high. I wouldn't run it over 55C maybe 60 max, but that is pushing it.
LostBok - About that Palo... i once had a Palo 1700+ and managed to get that to 1.7 GHz on air, but it was a AGOGA stepping, and didnt like anything higher than 1.7GHz at 1.9Vcore.. temps were ok, around the 45-50°C with a volcano 7+ on high. i then decided to lend that chip to my friend and his vapochill... got it to 1.75GHz (whoopdy doo! ) and voltage didnt make any difference... so i sold that chip to another friend (on a GA-7VRXP .. i prefer my KT7A-RAID over that board) and bought a 1700+ T-Bred (A) for $5 more than i sold the other one. This T-bred hits 2.06GHz on 1.9Vcore with my V7+, and is around the 40-45°C at 100% load.
So what i say is try to hock the 1900+ off to a mate or someone else, and buy a nice cheap T-Bred and clock that one, as you get better results out of those chips....