Mac Pro Temperature question

Hi,

Although you are being helpfull to others running Seti you are not beeing helpful to your MacPro.

Running your machine flat out constantly will affect the life of the components.

Cheers

Andy

The fans will kick into high gear to protect those FB-DIMMs. I'm sure the Dev Doc would have the temp range and max. Most of the time I am not pushing the system hard (I have trouble pushing it!)

55C seems to be normal for RAM.

If you don't see any ECC errors, nothing in the logs, and no panic.log, and everything passes in Apple Hardware Test, I'd just enjoy and not sweat it. The only time I can see a problem would be if the ambiant temperature was too high to provide cool air.

Well I run the 5150 which is 65Watts as opposed to 80 for the
5160. But that seems hot to me. Here's my temps:

Ambient Air 25.0°C
CPU A Heatsink 27.0°C
CPU B Heatsink 27.0°C
CPU Core 1 30.0°C
CPU Core 2 35.0°C
CPU Core 3 30.0°C
CPU Core 4 32.0°C
Expansion Slots 28.0°C
Hard Drive Bay 1 27.0°C
Hard Drive Bay 2 28.0°C
Hard Drive Bay 3 29.0°C
Hard Drive Bay 4 29.0°C
Memory Module A1 43.0°C
Memory Module A2 37.0°C
Memory Module B1 44.0°C
Memory Module B2 42.0°C
Memory Riser Card A Position 1 28.0°C
Memory Riser Card A Position 2 30.0°C
Memory Riser Card A Position 3 29.0°C
Memory Riser Card B Position 1 28.0°C
Memory Riser Card B Position 2 30.0°C
Memory Riser Card B Position 3 30.0°C
Power Supply Location 1 47.0°C
Power Supply Location 2 40.0°C
SMART Disk Maxtor 7V300F0 (V60MAJ7G) 33.0°C
SMART Disk Maxtor 7V300F0 (V60QP24G) 35.0°C
SMART Disk Maxtor 7V300F0 (V60QWG9G) 32.0°C
Disk Usage “/” 24 %
RAID Status A553BEE6-95AF-4C2D-A626-DB0F4F2EFB19 1
S.M.A.R.T. Status Maxtor 7V300F0 V60MAJ7G 1
S.M.A.R.T. Status Maxtor 7V300F0 V60QP24G 1
S.M.A.R.T. Status Maxtor 7V300F0 V60QWG9G 1

and I have just been doing some test renders that max the
cpus (100%) for long peroids.

No one knows what the the max temp of the cores can
reach on the 3ghz 5160 ?

56.5c http://processorfinder.intel.com/details.aspx?sSpec=SL9RT#

And yours goes past 70c ? Heh! I've been saying Apple blew
chunks on the fan settings!

I'll be back with a Fan tuning link for you in a sec.

BTW, for the 5150 (2.66) users that are wondering the max temp
for that proc is 65c.

http://processorfinder.intel.com/details.aspx?sspec=sl9ru#

Also and BTW, running your MapPro procs at 100% 24/7 won't
hurt them one little bit - assumming you keep them at or under
the maximum Thermal Design Power (TDP) value for your specific
processor - (65c for the 5150 and 56.5 for the 5160).

Hi,

I am stressing my MacPro here , 5060

All cores at 100%

The fans are all sticking at their low values, no increase at all!

Ambient is 23
Heatsink is at 42
Memory is at 61
Cpu is at 58

So my cpus are over recommended temps and the fans are not increasing speed. I am a bit worried about this!

Anyone have any idea why?

Does anyone see the fans speed up under load?

Thanks for any help

Does anyone see the fans speed up under load?

This was one of the things I was trying to get to happen but never could as I was curious if Apple had intervals for ramping up the fans. I've been looking through the technical documentation on the developer site but haven't found anything. Based on what MacBook users are going through, I'm taking a guess they calculated the values to emphasize quietness rather than speeding up the fans in increments.

I dumped the SMC key values relating to the fans using the command line utility from the smcFanControl program (the GUI will not load at all on the Mac Pro and still doesn't work correctly even with the system info added to the Machines plist file). You can find this program on Macupdate.com (the unix tool smc is inside the Contents/Resources folder once you do a Show Package Contents in the Finder).

Warning, using this smc command line tool isn't for the squeamish since the thing isn't user friendly and requires passing key values in hexadecimal. These settings are also temporary and lost on shutdown/reboot so you would need to write shell scripts to reload the values again (I set mine up as a LaunchDaemon using Lingon). So unless you are comfortable with the command line, I wouldn't recommend trying this since you could screw up your system (because of this, I'm leaving out the details for changing it; that info is in the programs readme for those that want to try it). Instead, I would recommend as many people as possible to politely ask the developer of either this program or the Fan Control prefpane if they could support the Mac Pro. The necessary values they would need is below.

SMC Fan Values for MacPro1,1:

F0Ac [fpe2] 500 (bytes 07 d1)
F0ID [{fds] (bytes 01 00 01 00 43 50 55 5f 4d 45 4d 20 00 00 00 00)
F0Mn [fpe2] 500 (bytes 07 d0)
F0Mt [ui16] 244 (bytes 01 f4)
F0Mx [fpe2] 2900 (bytes 2d 50)
F0Sf [fpe2] 1200 (bytes 12 c0)
F0Tg [fpe2] 500 (bytes 07 d0)

F1Ac [fpe2] 499 (bytes 07 cf)
F1ID [{fds] (bytes 01 01 04 00 49 4f 20 00 00 00 00 00 00 00 00 00)
F1Mn [fpe2] 500 (bytes 07 d0)
F1Mt [ui16] 84 (bytes 02 54)
F1Mx [fpe2] 2900 (bytes 2d 50)
F1Sf [fpe2] 1200 (bytes 12 c0)
F1Tg [fpe2] 500 (bytes 07 d0)

F2Ac [fpe2] 599 (bytes 09 5e)
F2ID [{fds] (bytes 01 00 0d 00 45 58 48 41 55 53 54 20 00 00 00 00)
F2Mn [fpe2] 500 (bytes 07 d0)
F2Mt [ui16] 88 (bytes 02 58)
F2Mx [fpe2] 2900 (bytes 2d 50)
F2Sf [fpe2] 1200 (bytes 12 c0)
F2Tg [fpe2] 600 (bytes 09 60)

F3Ac [fpe2] 822 (bytes 0c db)
F3ID [{fds] (bytes 01 02 10 00 50 53 20 20 20 00 00 00 00 00 00 00)
F3Mn [fpe2] 820 (bytes 0c d0)
F3Mt [ui16] 132 (bytes 03 84)
F3Mx [fpe2] 2800 (bytes 2b c0)
F3Sf [fpe2] 1200 (bytes 12 c0)
F3Tg [fpe2] 820 (bytes 0c d0)

FNum [ui8 ] 4 (bytes 04)
FS! [ui16] 0 (bytes 00 00)

FNum - number of fans in the system
F#Ac - Fan actual speed
F#Mn - Fan minimum speed
F#Mx - Fan maximum speed
F#Sf - Fan safe speed
F#Tg - Fan target speed
FS! - automatic or forced mode (fan speed)

The above in plain english:

Fan #0 (CPU/Memory):
Actual speed : 497
Minimum speed: 500
Maximum speed: 2900
Safe speed : 1200
Target speed : 500
Mode : auto

Fan #1 (Expansion slots):
Actual speed : 500
Minimum speed: 500
Maximum speed: 2900
Safe speed : 1200
Target speed : 500
Mode : auto

Fan #2 (Exhaust):
Actual speed : 599
Minimum speed: 500
Maximum speed: 2900
Safe speed : 1200
Target speed : 600
Mode : auto

Fan #3 (Power Supply):
Actual speed : 819
Minimum speed: 820
Maximum speed: 2800
Safe speed : 1200
Target speed : 820
Mode : auto

I used the same utility to change the target speed values of fans 0 and 1 to 900rpm and fan 2 to 1000rpm (I left the power supply fan at the default). I also had to set the modes for fans 0-2 to forced else they would just initially speed up a little then drop back to the original target speeds.

Fan #0 (CPU/Memory):
Actual speed : 899
Minimum speed: 500
Maximum speed: 2900
Safe speed : 1200
Target speed : 900
Mode : forced

Fan #1 (Expansion slots):
Actual speed : 899
Minimum speed: 500
Maximum speed: 2900
Safe speed : 1200
Target speed : 900
Mode : forced

Fan #2 (Exhaust):
Actual speed : 999
Minimum speed: 500
Maximum speed: 2900
Safe speed : 1200
Target speed : 1000
Mode : forced

Even at these higher speeds, the noise level has not changed much. To be honest, it doesn't sound any louder to my ears but people with very acute hearing may notice some increased sound from the front fans. The following are the results from Hardware Monitor. This is all at idle for the Xeon 5150. Room temperature was around 86F/30C. At 80F/27C, the temperatures you see below with the default fan settings are approximately 10-15F lower (so those who have ambient room temperatures below 80F/27C are considerably lucky since my "at full load" temperatures have the cores in the 160F/71C range, memory modules in the 175F/79C range).

Temperatures with default fan speeds:

CPU A Heatsink - 108F/42C
CPU Core 1 - 117F/47C
CPU Core 2 - 115F/46C
CPU B Heatsink - 104F/40C
CPU Core 3 - 113F/45C
CPU Core 4 - 114F/46C
Memory Module A1 - 162F/72C
Memory Module A2 - 167F/75C
Memory Module B1 - 142F/61C
Memory Module B2 - 147F/64C
Memory Riser Card A Position 1 - 113F/45C
Memory Riser Card A Position 2 - 120F/49C
Memory Riser Card A Position 3 - 109F/43C
Memory Riser Card B Position 1 - 108F/42C
Memory Riser Card B Position 2 - 115F/46C
Memory Riser Card B Position 3 - 115F/46C
Expansion Slots - 109F/43C
Hard Drive Bay 1 - 102F/39C
Hard Drive Bay 2 - 99F/37C
Hard Drive Bay 3 - 100F/38C
Hard Drive Bay 4 - 109F/43C

Temperatures with increased fan speed:

CPU A Heatsink - 95F/35C
CPU Core 1 - 106F/41C
CPU Core 2 - 102F/39C
CPU B Heatsink - 95F/35C
CPU Core 3 - 97F/36C
CPU Core 4 - 97F/36C
Memory Module A1 - 140F/60C
Memory Module A2 - 144F/62C
Memory Module B1 - 124F/51C
Memory Module B2 - 128F/53C
Memory Riser Card A Position 1 - 98F/37C
Memory Riser Card A Position 2 - 106F/41C
Memory Riser Card A Position 3 - 99F/37C
Memory Riser Card B Position 1 - 97F/36C
Memory Riser Card B Position 2 - 102F/39C
Memory Riser Card B Position 3 - 102F/39C
Expansion Slots - 97F/36C
Hard Drive Bay 1 - 95F/35C
Hard Drive Bay 2 - 93F/34C
Hard Drive Bay 3 - 95F/35C
Hard Drive Bay 4 - 91F/33C

The most dramatic change was in the cooling of the memory modules and hard drive bay 4. I plan on testing under load to see what kind of temperature readings I get and trying different fan speed settings to find where the sweet spots are.

Mac OS X (10.4.8)

Hi,

I am stressing my MacPro here , 5060

All cores at 100%

The fans are all sticking at their low values, no
increase at all!

Ambient is 23
Heatsink is at 42
Memory is at 61
Cpu is at 58

So my cpus are over recommended temps and the fans
are not increasing speed. I am a bit worried about
this!

Anyone have any idea why?

Yes. Read all of this:
http://discussions.apple.com/message.jspa?messageID=3530043

Does anyone see the fans speed up under load?

No. Not yet. And I've gone way over the limit as well.
That's why I was so happy to find the above link!

Thanks for any help

NP.

Is'nt the TDP for the 5160 80w

And on page 87 of http://download.intel.com/design/Xeon/datashts/31335501.pdf
there is a graph that mentions a max diode temp of 80c.
Is this the core temp it is refering to?

I don't >think< so no.


The thermal spec 56.5c and 65c for the 5160 and 5150 respectivly,
is defined by Intel as:

" Thermal Specification: The thermal specification shown
is the maximum case temperature at the maximum Thermal
Design Power (TDP) value for that processor. It is
measured at the geometric center on the topside of the
processor integrated heat spreader. For processors without
integrated heat spreaders such as mobile processors, the
thermal specification is referred to as the junction
temperature (Tj). The maximum junction temperature is
defined by an activation of the processor Intel® Thermal
Monitor. The Intel Thermal Monitor’s automatic mode is
used to indicate that the maximum TJ has been reached."

I assume that the "integrated heat spreader" is the
aluminum (?) lid on the processor that the non-integrated
heat spreader (sync) touches as seen in this image:
http://www.tgdaily.com/picturegalleries/20060626/woodcrest-pers.jpg
and shown on page 82 of the PDF that you linked above.



Anyway, These new procs pride themselves on a LOW thermal
profile and 72c or 80c is a temperature associated with
a fairly high thermal profile so if common sense applies
those procs should be running AT, AROUND, or UNDER 60c.