Re: Does this make any sense?

In news:i4m82c$jr7$1@xxxxxxxxxxxxxxxxx,
John Doue typed on Fri, 20 Aug 2010 18:47:25 +0300:
This is not exactly related to laptops, but the issue is not dependent
on the type of machine.

On an Acer mini-desktop (Acer L100), the issue of HD temperature is
widely documented, even if to my knowledge, no-one claimed it caused a
HD to fail. Writing this on one of those machine, HD Tune shows 56C,
which is really border-line.

Since I like those machine for the balance cost-performance-desk real
estate-noise they offer, I ended up owning several of them.

Now, the issue: alarmed by these HD temperatures, I initially thought,
which made sense, that they were caused by insufficient ventilation. I
tried running the machine without covers, no significant change (NSC)

I then tried to run the same machine with the HD out of the box: NSC.

Going one step further, I bought a 2.5 HD (the original is 3.5) of
same capacity, loaded it, installed it, and what do you guess: NSC.

And believe me, HD Tune is not making this up: I easily ascertained
those temperatures were for real.

Now, I also own an Acer L480. Same looks, same box, same power supply,
but two fans instead of one. Same disk. And it runs cool!

Given the above, I do not believe the two fans setup fully explains
the difference.

Is it conceivable that actually, the HD controller might be the
culprit here?

It sounds far fetched, but what do guys think?

PS: Although I love those machines, the fact that, heat or not, their
motherboards systematically fail after some months, and if you are
lucky, some years, has not escaped me! I always have one or two
machines ready to go!

Of course, this is no match for Bill's inventory, but still ... !

Hi John! I would be very curious what the hot one reads when you first
turn on the computer. Next I would throw it in standby mode and let it
cool down say an hour or two. Then turn it on and check the temperature
once again. And unlike the CPU, the hard drive doesn't heat up very
quickly and takes a few minutes or more before it ever should get any
amount of heat.

I never had problems with hard drive temperatures, just with CPU
temperatures. And I have three Gateway MX6124 and one of them reads low.
And at idle, it reads about 5°C too low. And if you heat up the CPU, it
reads up to 20°C too low. Thus the fan never gets the signal to crank up
the fan higher to cool it down some. I didn't worry too much about it
until I burned out the CPU. Luckily it is easy to replace through a trap
door.

I also have two Asus EeePC 702 netbooks. And one of them will suddenly
read 0°C and the fan will kick up on max. And it will continue to read
0°C until you power down, disconnect the AC and remove the battery and
reconnect it up once again. Now it will work fine until the next time it
happens. There is an EeePC utility called eeectl that allows you to
manually control the fan speed. So I use that to control the fan
whenever it happens. There is very little chance of overheating since
these are normally ran underclocked and it is almost impossible to
overheat these things. Plus they cleverly use the keyboard as one huge
heatsink. It is really overkill, but at least you don't have the extra
weight of a real heatsink.

In your case, I am thinking that it isn't really reading the temp
correctly. And this isn't too uncommon since I have two makes right have
that reads the temp incorrectly while the same other models works just
fine. Another odd thing is I like using BattStat v0.98 a lot to read
temps. and only on my four EeePCs, it reads the CPU totally differently
than eeectl reads them. and the two doesn't read in sync either. As one
could be going higher and one could be dropping. The only thing I can
think of is that there are two sensors in Celeron CPUs. And BattStat
reads one while eeectl reads the other one.

--
Bill
Gateway MX6124 ('06 era) 1 of 3 - Windows XP SP2


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