Einstein hard on the CPU

Kenneth Larsen
Kenneth Larsen
Joined: 18 Jan 05
Posts: 19
Credit: 14412104
RAC: 0

I am using the Asusprobe as

I am using the Asusprobe as well, which reads the temperature off a sensor on the mainboard.
The cpu is an Athlon XP 3000+ (FSB333MHz), max load ~51C, idle 46C, when running other Boinc projects (except Pirates) it tops at ~49C.

kadawson
kadawson
Joined: 11 Feb 05
Posts: 2
Credit: 0
RAC: 0

I haven't seen much Power PC

Message 1256 in response to message 1255

I haven't seen much Power PC activity in these forums so far. I'm just starting up with Einstein (and Boinc) and have been running it on an iBook G4 / 933 MHz. (For comparison with you x86 folks, the floating-point speed is 427.35 and the integer is 1332.16.) Einstein is *killer* hard on the CPU. Temperature at the processor bottom went from 54C to 66C! Here's a screen capture from the Temperature Monitor application: http://dawson.nu/misc/Einstein-temp.png . It's pretty obvious the points at which I started and stopped Einstein.


Keith Dawson | Layer of ash separates morning and evening milk.

Shaktai
Shaktai
Joined: 8 Nov 04
Posts: 183
Credit: 426451
RAC: 0

> I haven't seen much Power

Message 1257 in response to message 1256

> I haven't seen much Power PC activity in these forums so far. I'm just
> starting up with Einstein (and Boinc) and have been running it on an iBook G4
> / 933 MHz. (For comparison with you x86 folks, the floating-point speed is
> 427.35 and the integer is 1332.16.) Einstein is *killer* hard on the CPU.
> Temperature at the processor bottom went from 54C to 66C! Here's a screen
> capture from the Temperature Monitor application:
> http://dawson.nu/misc/Einstein-temp.png . It's pretty obvious the points at
> which I started and stopped Einstein.

All DC projects work the computer harder then normal use. With your laptop, make sure you are keeping it elevated with good air flow all the way around the case, or use a laptop cooler that circulates air around the case. This applies equally to PC's or Macs. They aren't really designed for the load created by DC projects. That being said, I have successfully ran my iBook 600 for more then 2 years on a variety of Distributed Comuting projects without problems, as long as air flow is maintained around the case.

Keith, what temperature monitor application are you using?

winr
winr
Joined: 22 Jan 05
Posts: 15
Credit: 55276
RAC: 0

.............................

..........................................................
Barton 2600+ (333 bus)
Running it 11 x 200.
SK7 heatsink--80 mm fan @2500 rpm.

39 c idle

44 c idle plus Einstein@home.

Regards.

Richard :-)
..............................................................

I am using EVEREST 1.51.195

Regards.

Richard.

All your BOINC are belong to us

Travis DJ
Travis DJ
Joined: 9 Feb 05
Posts: 5
Credit: 550461
RAC: 0

For having to type this a 2nd

For having to type this a 2nd time, lol:

Intel Prescott CPUs are the hottest on the planet with the 550+ models rated at 115 watts maximum thermal loss. Real-world testing has shown the 570 (3.8GHz) model outputs 104.5 under full load. So if your Pentium-4 has a PRB-1 (check the box where the barcode is, see sources) it's best off if you forget the boxed CPU heatsink and buy a 100% copper one instead.

Comparatively the Athlon64 4000+ is rated at 89 watts maximum thermal loss. The boxed heatsink is alright and I've read 50-60°C under high load is common and should be okay since the models are rated at 70°C maximum die temp, but copper cpu cooling is best. My AthlonXP 3200+ runs at 54°C while E@H is running on an Al-Cu Cooler @ 2000RPM fan speed- I've had no problems with it and the noise level is exceptionally tolerable- my power supply is louder than the CPU fan!

Bottom line is AMD CPUs are typically cooler, even more so than Intel P4 Prescott CPUs. If you can, replace an Al or Al-Cu heatsink with a pure Cu one. Also, use Silver thermal compound instead of "standard" thermal grease/paste, it conducts a much higher percentage of waste heat from the CPU die than plain ol grease does. It doesn't hurt to have a thermally or manually controllable fan speed for CPU cooling either.

Sources:
http://www6.tomshardware.com/cpu/20041115/pentium4_570-06.html
http://www6.tomshardware.com/cpu/20041221/cpu_charts-13.html
http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/30430.pdf

kadawson
kadawson
Joined: 11 Feb 05
Posts: 2
Credit: 0
RAC: 0

> Keith, what temperature

Message 1260 in response to message 1257

> Keith, what temperature monitor application are you using?

It's Marcel Bresink's app named Temperature Monitor, available at http://www.bresink.de/osx/TemperatureMonitor.html and also from VersionTracker, Macupdate, and other usual-suspect sources. It's freeware. This is pretty remarkable given that the author has to reverse-engineer all the information about the temperature sensors Apple includes with various models -- Bresink's site says that some models include as many as 38 seperate probes. None of the data produced by these probes is standardized or publicly documented.


Keith Dawson | Layer of ash separates morning and evening milk.

Grant
Grant
Joined: 18 Jan 05
Posts: 2
Credit: 146564
RAC: 0

I had to buy a new CPU

Message 1261 in response to message 1259

I had to buy a new CPU Fan/Heatsink this past summer when I started running BOINC projects. I have an Athlon 1800+, and it was getting up to 65C. Picked up an all copper Heatsink with 5200RPM fan and the highest i've seen it since then is 54C

Marialessandra Papa
Marialessandra Papa
Joined: 15 Oct 04
Posts: 10
Credit: 1023565
RAC: 0

> One question.... Where can

Message 1262 in response to message 1237

> One question.... Where can we find info on what we are seeing on the display ?

E@h front page, under 'Additional Information'

MAP

dagwolf
dagwolf
Joined: 6 Jun 05
Posts: 7
Credit: 61597
RAC: 0

I'll ask this here since it

I'll ask this here since it seems the most appropriate thread after a search.

I'm having quite a discrepancy between what AsusPCProbe and MBM report as CPU temperatures.
When running Einstein, which causes about a 5 degree bump up in temps, the Asus software always reports the temps about 12 to 13 degC higher than MBM.
For example, right now as Einstein is crunching, MBM is reporting 58C, Asus is reporting 71C. Just for the heck of it I ran SiSoftware Sandra and it agrees with MBM.
I'm worried because the maximum temp for my AMD XP2700+ is 85C, and I've seen it get up to 76C running Einstein with AsusProbe.
I've ordered a larger copper heatsink/fan to replace the stock AMD one, but I'm wondering if anyone else has seen this kind of discrepancy between temperature monitors, and should I worry?
Thanks
dagwolf
(Edit: FWIW the BIOS seems to agree with the AsusProbe. Reads about 65C at idle)

dagwolf
dagwolf
Joined: 6 Jun 05
Posts: 7
Credit: 61597
RAC: 0

Well, until that heatsink

Well, until that heatsink gets here (and please pray I don't destroy my CPU getting that old heatpad off)I've resorted to using Threadmaster to throttle Einstein down to 60%. That keeps it running the same temp as SETI and PP at 100%.

dagwolf

Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.