So, with intensive POV-Ray work, I always like to open up speedfan and 

(FREAKING HOT o_O! Normally they run about 50-60) I see no evidence of 
CPU throttling down, though. But the even weirder thing I noticed was 
the voltages. 1.2, 5, etc all seem to be fine and stable -12 comes in 
around -15 and -16, and +12 seems to be all over the place, but never 
anywhere near 12! When under high CPU load, it hovers around 5-6 volts, 
and when the CPU is idle around 1-2v. (!)

The system is stable, seems to do the torture test fine, GPU operates 
normally, and everything appears to be humming along normally.

I may need to pop the heat sink off the cpu, clean it off, and re-apply 
some heatsink goop to get the temps down... All fans are nominal, there 
was some dust collected on the filters on the case, but that has been 
cleared off, airflow is great, it doesn't blow hot. Ambient temperature 
does have a lot to do with it. After the AC kicked on (we've been warm 
lately) CPU temps were arouns 85 under full load.)

The voltage is weird and disconcerting, though. I may wind up buying a 
new PSU as an insurance policy. I don't want a temperamental power 
supply trashing my CPU and motherboard.

Maybe the readings are just totally wrong?

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On 26/02/2011 4:14 PM, Mike Raiford wrote:
> So, with intensive POV-Ray work, I always like to open up speedfan and


Are you using SSLT?
I noticed that my laptop gets into the low 90's when using SSLT. About 
the high 70's or low 80's normally.

-- 
Regards
     Stephen

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On 2/26/2011 10:38 AM, Stephen wrote:
> On 26/02/2011 4:14 PM, Mike Raiford wrote:
>> So, with intensive POV-Ray work, I always like to open up speedfan and

>
> Are you using SSLT?

Yep... using SSLT. wow. Wonder why that is. Yeah, running PassMark would 
only warm the CPU up to about 68-70. So, maybe its just the case the POV 
just really hammers the CPU.

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On 26/02/2011 4:50 PM, Mike Raiford wrote:
>> Are you using SSLT?
>
> Yep... using SSLT. wow. Wonder why that is. Yeah, running PassMark would
> only warm the CPU up to about 68-70. So, maybe its just the case the POV
> just really hammers the CPU.

Aye, must be. I blame Clipa ;-)
I just downloaded HW Monitor to check and it reports the same 
temperatures. I suppose you could always reduce the duty cycle if it 
bothers you.

http://www.cpuid.com/softwares/hwmonitor.html

-- 
Regards
     Stephen

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Mike Raiford <"m[raiford]!at"@gmail.com> wrote:
> So, with intensive POV-Ray work, I always like to open up speedfan and 
> peek at the temps. (Under POV load, each core seems to be around 93?C 

  I think that's too much. Many systems I have seen have been configured
for an immediate emergency shutdown if the CPU temperature exceed something
like 85 degrees. (If it reaches those temperatures something must be really
wrong. Maybe the CPU fan died.)

  I don't know if 93 degrees is a normal operating temperature for your CPU,
but it certainly doesn't sound like such. My guess is that your monitoring
software is reading or showing something completely bogus.

  In a well-ventilated, well-designed system the CPU runs at something
like 40 degrees when idle and 60-65 degrees under full load. (Of course
this probably depends on the CPU in question, but with many CPUs normal
operating temperatures may be even lower than that.)

> I may need to pop the heat sink off the cpu, clean it off, and re-apply 
> some heatsink goop to get the temps down...

  I'm not sure that would be the problem. I have been using my system for
something like 5 years without ever doing that, and it still runs at a
comfortable 44 degrees when idle. Just need to remove the dust from time
to time.

  I had a problem with the CPU fan (rather than the CPU itself), as it would
spin really fast when temperatures got even slightly high, but tinkering with
the BIOS settings fixed that. (Now something like 2200 RPM is enough to keep
the CPU down to about 44 degrees at normal room temperature.)

-- 
                                                          - Warp

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Warp wrote:
>   I think that's too much. Many systems I have seen have been configured
> for an immediate emergency shutdown if the CPU temperature exceed something
> like 85 degrees. (If it reaches those temperatures something must be really
> wrong. Maybe the CPU fan died.)

I tried the demo of The Ball on Steam, set it at full screen 1080, and the 
machine powered down in about 3 minutes, apparently from overheating but I 
didn't get any message to that affect on booting up again. Tried it again a 
few hours later, windowed down to 800x600 and got about 10 minutes in before 
it shut off again.

I think the graphics card may be underventilated (as all my slots are full), 
but I've never had that problem with anything else (altho I can definitely 
hear the fan spinning up when I'm gaming (at least other people's games)). 
The GPU itself seemed rather scortching hot when I opened it up to check on 
the dustiness.

I'm wondering if it's worth pulling the card out and visually inspecting the 
surface and/or blowing it cleaner than I can with the card in place or 
something.

-- 
Darren New, San Diego CA, USA (PST)
  "How did he die?"   "He got shot in the hand."
     "That was fatal?"
          "He was holding a live grenade at the time."

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Am 26.02.2011 18:25, schrieb Stephen:
> On 26/02/2011 4:50 PM, Mike Raiford wrote:
>>> Are you using SSLT?
>>
>> Yep... using SSLT. wow. Wonder why that is. Yeah, running PassMark would
>> only warm the CPU up to about 68-70. So, maybe its just the case the POV
>> just really hammers the CPU.
>
> Aye, must be. I blame Clipa ;-)

You're making me bigger than I am :-) ("Lipa" is polish for lime 
(linden) tree; "Lipka" is the deminuitive form; the "C" is from 
"Christoph".)

As implemented in RC3, SSLT shoots about half of its rays only against 
the SSLT object itself, which might result in fewer cache misses than 
other ray-tracing computations. In addition, SSLT does a lot of math, 
with many exp() and sin() and cos() and such, so the floating-point 
units are probably running near full-throttle.

> I just downloaded HW Monitor to check and it reports the same
> temperatures. I suppose you could always reduce the duty cycle if it
> bothers you.

When I got my i7, I was worried about the high temperatures, too - but I 
was assured by the local PC dealer that this was nothing to worry about, 
since the i7 would self-throttle when in danger of overheating.
It doesn't - to the contrary, the cooling in my PC is apparently so good 
that the CPU keeps overclocking itself even with POV-Ray blazing away.

Apparently the i7's temperature sensors measure the temperature at 
totally different places than its predecessors. I heard that earlier 
Intel CPU's measure the temperature of (or near) the heatsink, while the 
i7 measures the core temperature.

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On 26/02/2011 7:39 PM, clipka wrote:

>> Aye, must be. I blame Clipa ;-)
>
> You're making me bigger than I am :-)
>

You're a big man here. :-D

> When I got my i7, I was worried about the high temperatures, too - but I
> was assured by the local PC dealer that this was nothing to worry about,
> since the i7 would self-throttle when in danger of overheating.

Good to know.

> It doesn't - to the contrary, the cooling in my PC is apparently so good
> that the CPU keeps overclocking itself even with POV-Ray blazing away.
>

I've not seen my i7 laptop go into turbo

> Apparently the i7's temperature sensors measure the temperature at
> totally different places than its predecessors. I heard that earlier
> Intel CPU's measure the temperature of (or near) the heatsink, while the
> i7 measures the core temperature.

Any idea what the max working temperature is?

-- 
Regards
     Stephen

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Am 26.02.2011 21:27, schrieb Stephen:

>> It doesn't - to the contrary, the cooling in my PC is apparently so good
>> that the CPU keeps overclocking itself even with POV-Ray blazing away.
>
> I've not seen my i7 laptop go into turbo

It may be disabled by the BIOS or chipset or whatever; after all, 
typically Laptops go for low energy consumption, whereas turbo is going 
for maxed performance.

>> Apparently the i7's temperature sensors measure the temperature at
>> totally different places than its predecessors. I heard that earlier
>> Intel CPU's measure the temperature of (or near) the heatsink, while the
>> i7 measures the core temperature.
>
> Any idea what the max working temperature is?

Not really. I think back then I found some information indicating that 
around 90 degrees Celsius is a "healthy" upper value, but I can't give a 
guarantee for that information.

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clipka wrote:
> ...("Lipa" is polish for lime 
> (linden) tree; "Lipka" is the deminuitive form; the "C" is from 
> "Christoph".)
> ...

BTW, pardon me for going off the off-topic topic, but is it just me, or 
are there really, really lots of guys named 
Cristoph/Cristopher/Christian/Chris around here?  Has anyone ever 
calculated the Chris Quotient for this place?

Just curious.

--Sherry Shaw

P.S.:  In my high school graduating class of ca. 50 students, there were 
four (4) girls named "Sherry" or something similar.  You had to holler 
at me quite a while before I would even bother to look up.

-- 
#macro T(E,N)sphere{x,.4rotate z*E*60translate y*N pigment{wrinkles scale
.3}finish{ambient 1}}#end#local I=0;#while(I<5)T(I,1)T(1-I,-1)#local I=I+
1;#end camera{location-5*z}plane{z,37 pigment{granite color_map{[.7rgb 0]
[1rgb 1]}}finish{ambient 2}}//                                   TenMoons

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