here is my setup
shuttle ak31 v3.1 with 1.4g tbird, 256m pc2100 crucial ddr, radeon 64mddr vivo, 2ibm75gxp 30g in raid 0, pioneer 10xdvd, yamaha 4416cdrw, copper hsf. temp is around 50c.
bios with default 133 @1400, it pass prime95 no problems.
bios set to 150fsb, 10x@1500, rise the ddr voltage...