cpu usage is typically 2 to 6% except exactly every 2 min it spikes to 50% for 5 or 6 sec. This has severe effects on my aces high on line flying game such as i hit the ground or overshoot a target before it unfreezes.
gigabyte ga-81915p-duo pro 3 ghz
1 g ddr2
vt6410 raid 0 striped
audigy sound card
things ive tried
lots of program and file deletions
lots of scans nortons, sym corp edition, spykiller, system mechanic 5, micros antispyware , registry healer,
defrags and cleanups
msconfig, went as far as disabling all startups and services
3 visits by "proffesionals"
in task mgr, only the "system" cpu usage jumps to 50%,no other task shows any unusual activity.the spike is an identical repeat in one cpu graph. in 2 cpu graph it is usually all in first graph but can split and show on both cpu graphs with 2nd cpu spike reducing to 0 after several 2 min cycles.