The hi pitched beep in an
Award bios = CPU overheated. Phoenix and other bios types do not have a continuous hi ptiched beep, so it's the CPU overheating. Now, given the new power drain on the PSU and the fact that the CPU overheats, PSU was either bad or not sufficient (or both!!)
Solution 450-500 wt quality PSU. Probably had a stock 300.
Noli Nothis Permittere Te Terere!!
EVGA 680i, Dual EVGA 8800GT'S (650/950), 4 gigs OCZ DDR2 1066, Intel Q9450 at 3.8 Ghz, Koolance Water Cooled, Dual Plextor16x DL DVD+/-RW. Dual WD 250gb 16mb Cache Sata 3.0. 3DMark06 score = 19,168.