October 4th, 2003, 06:22 AM
Processor fan speed
i have computer with processor pentium 4 (1.7 G) and i have some trouble when i start my computers about 5-10 later my computers automaticly restart by self.
And i check the bios system, that i got the speed for processor fan in between 2.343 and 2.567 rpm, is that normal for pentium 4 with big heatsink....????
or the power suplly is trouble...???
does any one know what's going on...???
October 4th, 2003, 02:22 PM
sounds slow to me, not sure of your hsfan, most of the new ones run 5500++rpm . is this like a HP with a duct between the cpu and the rear case fan? and also some bios utilities give false info on proprietary boards.
Last edited by Known_criminal; October 4th, 2003 at 02:24 PM.
October 6th, 2003, 10:37 PM
Motherboard Moniter has worked well for me on more than one system, it's a windows freebie and easy to find. Use it to check your CPU temp, as a low fan speed can allow temp to increase, the fan speed itself can't directly cause a reset.
While 2.5k sounds a bit slow, I think it's probably enough for a relatively idle cpu. Check and make sure the fan in the power supply is blowing, too (with your hand). Watch the temp and see.
October 18th, 2003, 02:19 AM
Actually, fan speed CAN cause your computer to shut down... on certain computers. I had an old Dell Dual-Processor Workstation that measured the fan speed for the fan blowing over the CPUs, and if it dropped too low, the computer would shut down.