2.8 to 3.6 and beyond?

hey there, i just need a few quick tips (maybe)

i finished overclocking my P4 2.8 prescott to 3.6GHZ and it seems to have hit a ceiling there. i bumped up the core V to 1.580 volts but it still won't go any higher than this....i locked my pci and agp freq's. it gets a little toasty running at this speed but i can run the seti@home program fine.
i dunno if there is anything else i could do to get her to run a little bit faster?


ASUS P4P800S (cheap)
512MB PC3200 Shikatronics RAM (junk)
celestica gold edition radeon 9200 128mb(works aight)
80 gig MAXTOR 133 HD(slow)
P4 2.8GHz 800Mhz Prescott(fun)
5 80mm fans (3 out, 2 in)

 

no help at all??? o.k then, does anyone know of any other threads/message boards that have this similar issue?