E
Eric
I use Motherboard Monitor 5 on a few different systems. 2 of them have
a Shuttle MV42N motherboard with a Celeron 1.7 Ghz in a similar style
Mid Tower ATX case with 1 rear case fan each. My questions are:.
- How accurate are the temperatures reported from motherboards like
these, especially about the power supply?
- Can someone explain how the motherboard knows the power supply's
temperature (is that data relayed over one of the power supply wires
that connects to the motherboard)?
- What is the "System" temperature? I'm assuming that's some location
on the motherboard where they decided to mount a themistor.
- How hot is too hot for a power supply or does it depend on its
wattage? My A+GPB 450W power supply often goes to 60C (or slightly
higher) when I'm playing a game, a CD, or doing some type of CPU
intensive data encoding on the hard drive.
- What does it mean when a power supply emits a high pitched noise for
the first 10-20 minutes until it warms up? (I've heard aging stereo
amplifiers sometimes make this same noise, as well as the back of TVs
if you put your ear to them.) After a while the high pitched noise
goes away. Is this a sign of impending doom for the power supply or
perhaps normal? If I reboot the computer while the power supply is
making its high pitched noise, the noise goes away briefly during the
reboot until the monitor turns back on. Does that mean anything?
This brand new A+GPB 450W power that emits a high pitched noise was
bought as a replacement for a cheapo generic EZ-Media 300W power
supply which died recently along with 2 hard drives (everything else
in the systems seems to have survived). This happened while it was
busy encoding data and the power supply temperature was at least 60C.
I wasn't watching it at the time, but I'm guessing it overheated even
though I didn't think 60C was too much. What surprised me is that
instead of just the power supply dying that 2 hard drives died too (1
has a visible burn hole and the other smells like smoke). While I'm
not positive, it seems likely the power supply killed the hard drives
rather than 1 hard drive killing the power supply and other hard
drive. I guess cheapo power supplies aren't that robust? I hope the
more expensive A+GPB (JGE) power supply is better.
The following are my MBM 5's readings under Windows 2000:
* Shuttle MV42N, 1 hard drive, Tiger Pro 300W power supply:
Idle: Power=46C, System=43C, CPU=36C
Playing an audio CD: Power=58C, System=45C, CPU=48C
* Shuttle MV42N, 1 hard drive, A+GPB 450W power supply.
Idle: Power=44C, System=44C, CPU=42C
Playing an audio CD: Power=60C System=47C CPU=43C
Are these temperatures within the normal range? It's surprising that
the power supply gets about 15C hotter when playing a CD.
Please post any replies. Thanks.
a Shuttle MV42N motherboard with a Celeron 1.7 Ghz in a similar style
Mid Tower ATX case with 1 rear case fan each. My questions are:.
- How accurate are the temperatures reported from motherboards like
these, especially about the power supply?
- Can someone explain how the motherboard knows the power supply's
temperature (is that data relayed over one of the power supply wires
that connects to the motherboard)?
- What is the "System" temperature? I'm assuming that's some location
on the motherboard where they decided to mount a themistor.
- How hot is too hot for a power supply or does it depend on its
wattage? My A+GPB 450W power supply often goes to 60C (or slightly
higher) when I'm playing a game, a CD, or doing some type of CPU
intensive data encoding on the hard drive.
- What does it mean when a power supply emits a high pitched noise for
the first 10-20 minutes until it warms up? (I've heard aging stereo
amplifiers sometimes make this same noise, as well as the back of TVs
if you put your ear to them.) After a while the high pitched noise
goes away. Is this a sign of impending doom for the power supply or
perhaps normal? If I reboot the computer while the power supply is
making its high pitched noise, the noise goes away briefly during the
reboot until the monitor turns back on. Does that mean anything?
This brand new A+GPB 450W power that emits a high pitched noise was
bought as a replacement for a cheapo generic EZ-Media 300W power
supply which died recently along with 2 hard drives (everything else
in the systems seems to have survived). This happened while it was
busy encoding data and the power supply temperature was at least 60C.
I wasn't watching it at the time, but I'm guessing it overheated even
though I didn't think 60C was too much. What surprised me is that
instead of just the power supply dying that 2 hard drives died too (1
has a visible burn hole and the other smells like smoke). While I'm
not positive, it seems likely the power supply killed the hard drives
rather than 1 hard drive killing the power supply and other hard
drive. I guess cheapo power supplies aren't that robust? I hope the
more expensive A+GPB (JGE) power supply is better.
The following are my MBM 5's readings under Windows 2000:
* Shuttle MV42N, 1 hard drive, Tiger Pro 300W power supply:
Idle: Power=46C, System=43C, CPU=36C
Playing an audio CD: Power=58C, System=45C, CPU=48C
* Shuttle MV42N, 1 hard drive, A+GPB 450W power supply.
Idle: Power=44C, System=44C, CPU=42C
Playing an audio CD: Power=60C System=47C CPU=43C
Are these temperatures within the normal range? It's surprising that
the power supply gets about 15C hotter when playing a CD.
Please post any replies. Thanks.