UPS & temp

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Hi-Last week I asked you all about converting from a 300W power supply to one
of 400W. A lot of good advice. I actually managed to switch to an Antec
400W w/o screwing up. Amazing, for me.
My question is: my system temp. used to always be between 47C & 50C; now
it's always between 50C & 53C. Is there a corrolation between the increase &
the new UPS? Or is this, basically, normal & nothing to fret over,
Alan
 
a bigger powersupply is going to generate more heat.


| Hi-Last week I asked you all about converting from a 300W power supply to
one
| of 400W. A lot of good advice. I actually managed to switch to an Antec
| 400W w/o screwing up. Amazing, for me.
| My question is: my system temp. used to always be between 47C & 50C;
now
| it's always between 50C & 53C. Is there a corrolation between the
increase &
| the new UPS? Or is this, basically, normal & nothing to fret over,
| Alan
| --
| Thanks-Alan
 
Rob said:
a bigger powersupply is going to generate more heat.
Click to expand...


I am not an electrical engineer, and I may be wrong here, but I don't think
that's correct. The wattage rating of a power supply is not how many watts
it puts out, but the *maximum* number of watts it *can* put out. The actual
number of watts is determined by the needs of the equipment connected to it.
 
Ken Blake said:
I am not an electrical engineer, and I may be wrong here, but I don't think
that's correct. The wattage rating of a power supply is not how many watts
it puts out, but the *maximum* number of watts it *can* put out. The actual
number of watts is determined by the needs of the equipment connected to it.
Click to expand...


Well I am an electrical engineer...and you are correct in that a larger
capacity supply
will not draw any more power...it merely has the capacity to supply more.
If it has a variable speed fan however...it *might* be turning slower than
the one in the old supply.
 
philo said:
Well I am an electrical engineer...and you are correct in that a
larger capacity supply
will not draw any more power...it merely has the capacity to supply
more. If it has a variable speed fan however...it *might* be turning
slower than the one in the old supply.
Click to expand...


Thanks for the confirmation.
 
The manual states that it has two fans-intake & exhaust. That the intake fan
monitors the system temp & adjusts it's' speed accordingly. If I connect a
certain pin, which I did not, I am suppose to be able to observe the fan's
rpms. Also, the exhaust, exterior, fan remains off until until the power
supply recognizes it is needed. This also contributes to noise suppression.
My main concern is whether, or not, 50-51c is an ok temp?
 
The manual states that it has two fans-intake & exhaust. That the intake fan
monitors the system temp & adjusts it's' speed accordingly. If I connect a
certain pin, which I did not, I am suppose to be able to observe the fan's
rpms. Also, the exhaust, exterior, fan remains off until until the power
supply recognizes it is needed. This also contributes to noise suppression.
My main concern is whether, or not, 50-51c is an ok temp?
Click to expand...

Depends on what CPU you're running. On the AMD site, you can look up
optimal temp ranges for the processors they make. I imagine the same info
is available somewhere for Intel processors as well.
 
And if you install a bigger powersupply in a computer that needs one and it
draws more...it won't generate more heat?...sure it will.




|
| | > Rob Giordano (Crash) wrote:
| >
| > > a bigger powersupply is going to generate more heat.
| >
| >
| > I am not an electrical engineer, and I may be wrong here, but I don't
| think
| > that's correct. The wattage rating of a power supply is not how many
watts
| > it puts out, but the *maximum* number of watts it *can* put out. The
| actual
| > number of watts is determined by the needs of the equipment connected to
| it.
| >
|
|
| Well I am an electrical engineer...and you are correct in that a larger
| capacity supply
| will not draw any more power...it merely has the capacity to supply more.
| If it has a variable speed fan however...it *might* be turning slower
than
| the one in the old supply.
|
|
 
RE: the debate over wattage & temp. I'm, obviously, a novice but I think you
all may be right. I installed a more powerful UPS but I added no new devices
which may need more power. I did so with future considerations in mind. As
of now I think Philo & Ken are correct-the increased power is there only if I
need it. And if that becomes the case & more wattage is required then I
think a higher temp. reading may be justified( as Crash inferred). But as of
right now, which was my poorly worded original question, I don't understand
why the temp has increased a few degrees-unless the fan does rotate more
slowly.
As always, I appreciate everyone's help but Sharon-if I wanted to refer
to a manual somewhere I would have. I figured input from knowledgeable
indiduals would be simpler &, frankly, more fun. Thanks!
 
As always, I appreciate everyone's help but Sharon-if I wanted to refer
to a manual somewhere I would have. I figured input from knowledgeable
indiduals would be simpler &, frankly, more fun. Thanks!
Click to expand...

Alan, you're welcome but I addressed only this portion of your question:
My main concern is whether, or not, 50-51c is an ok temp?
Click to expand...

None of us can answer that without knowing what processor is in use.
Anyhow, enjoy your new hardware upgrade!
 
Rob said:
And if you install a bigger powersupply in a computer that needs one
and it draws more...it won't generate more heat?...sure it will.
Click to expand...


That's akin to saying that a mainframe generates more heat than a PC. Sure,
it will, but the reason is not that it has a bigger power supply.

The point is ismply that if you have two otherwise identical running
computers that differ only in the size of their power supplies, the one with
the larger power supply will not generate any more heat.
 
Hi Sharon-It's a Pentium 4. HP told me last night that 51 degrees was
perfectly normal, but she didn't elicit any real confidence from me. Intel
responded but they want the cpu's spec #-I'm waiting for them to tell me
where it's located. On the cpu itself, I'm guessing. (slxxx, or something)
I would never have posted this question, & I'm referring to the wattage
vs heat issue, if had known it was going to create discord, Thanks-Alan
 
Hi Sharon-It's a Pentium 4. HP told me last night that 51 degrees was
perfectly normal, but she didn't elicit any real confidence from me. Intel
responded but they want the cpu's spec #-I'm waiting for them to tell me
where it's located. On the cpu itself, I'm guessing. (slxxx, or something)
I would never have posted this question, & I'm referring to the wattage
vs heat issue, if had known it was going to create discord, Thanks-Alan
Click to expand...

No problem, Alan. You have a new power supply and noticed a slight increase
in heat. I misinterpreted your concern about the heat. Sorry about that.
Probably due to my frame of reference: I run AMD chips which can fry in
seconds if temps are too high. Rare but this can happen even with temp
monitoring/auto-shutdown enabled in BIOS. P4s are not immune to heat
problems either but they are a little more resilient.
 
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