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System temperature - Power Consumption
When I turn on my PC, my BIOS reports the following values:
System temperature = 39C / 102F CPU1 temperature = 57C / 134F CPU2 temperature = 63C / 145F Vcore1 = 1.56V +2.5V = 2.48V +3.3V = 3.28V +5V = 4.91V +12V = 11.92V -12V = -12.03V -5V = - 4.94V VBAT(V)= 3.45V 5VSB(V)= 4.82V Are these temperatures OK? At what level are temperatures considered "too high"? I guess that the longer the PC remains on, the temperature could rise. But what about the power consumption? Would the reported values change as I use the PC? And are the values I quote above satisfactory? I particularly worry about the "-12V" value, which is -12.03 and therefore higher (in absolute terms) than 12. If this value is indeed too high, what are the implications of doing nothing? Alternatively, what could I do to reduce it? |
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I C wrote:
When I turn on my PC, my BIOS reports the following values: System temperature = 39C / 102F CPU1 temperature = 57C / 134F CPU2 temperature = 63C / 145F Vcore1 = 1.56V +2.5V = 2.48V +3.3V = 3.28V +5V = 4.91V +12V = 11.92V -12V = -12.03V -5V = - 4.94V VBAT(V)= 3.45V 5VSB(V)= 4.82V Are those CPU's, AMD or Intel? And how fast are both of those processors? |
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"I C" wrote in message
om... When I turn on my PC, my BIOS reports the following values: System temperature = 39C / 102F CPU1 temperature = 57C / 134F CPU2 temperature = 63C / 145F Vcore1 = 1.56V +2.5V = 2.48V +3.3V = 3.28V +5V = 4.91V +12V = 11.92V -12V = -12.03V -5V = - 4.94V VBAT(V)= 3.45V 5VSB(V)= 4.82V PC voltage tolerances are specified at plus or minus 5%, that's 3.135 - 3.465 for the +3.3V line, 4.75 - 5.25V for the +5V line, 11.4 - 12.6 for the +12V line. The -12V line is only used for serial ports and they will tolerate anything between -3 and -15V. The -5V line isn't used for anything anymore. Vbat is wrong but that's nothing unusual, I've seen many BIOSes report it incorrectly. Motherboard sensors themselves are not high accuracy devices, the A/D converter itself is only 8 bit meaning 0.8% error at mid scale. The best overall accuracy of the sensors would be about +-2%. I wouldn't like my CPUs to exceed 60C as I found out from experience that above about 65C the likelihood of unexplained random crashes increases exponentially. My P4-2.8 o/c'd to 3.5GHz currently runs at 47C with room at 30C (rather hot in here). |
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