luigi2000 0 Posted August 30, 2004 Is there someone reading this who knows for sure which timer, the Power Management Clock also known as ACPI timer, or the 8254 PIT, or the APIC updates the system time in a Windows 2000 ACPI uniprocessor PC? I would like to get a definitive answer. Why? Starting two weeks ago about every other day, the system time on my A7N8X-E nForce2 PC intermittently counts an extra one to 15 seconds in a minute. The hardware real time clock display keeps correct time on the main bios screen. The only symptom of this problem that I've noticed is the QuickTime Sorenson decoder will play the audio stream out of synchronization (too slowly). All the other decoders MJPEG, DivX, MPEG-2 playout fine. The motherboard temp at the ASUS ASIC runs 30 to 33 degrees C; and the CPU temp runs 52 to 57 degrees C when the case is closed and ambient room temp is 27 C (80 F). The timer failure can happen when the motherboard temp is 30 degrees C. Opening the case seems to have stopped the system time error. When the room temp is 22 degrees C (72 F), the mobo temp can fall to 29 C; and the CPU temp can fall to 44 C. I would really appreciate if a knowledgeable tech or engineer could answer this question. Buona fortuna, Mark Share this post Link to post
