Dust on the CPU cooler reduces cooling by a considerable amount. Dust on the fan that cools the heat sink also reduces the cooling -- especially if using a stock (and too small) CPU cooler. When was the last time you removed the heat sync from you CPU and cleaned and re-applied the thermal paste? I lowered the temps on an E6850 by 5 degrees and a Q9450 by over 10 degrees by cleaning them and re-applying the thermal past. When run 24/7 at high temps, the check factory paste seems to break down after a while.
You don't mention which BOINC projects you have been running and whether they have changed. Not all projects are created equal. Some of PrimeGrid's apps run much hotter than others. The Collatz sieve app causes my laptop to slow down the GPU speed whereas the previous version of the applications needed to be optimized to obtain a 99% GPU load. As project developers increase the performance of the applications, temperatures will rise as will the electric bill. On Mon, Oct 26, 2015 at 7:25 AM, McLeod, John <[email protected]> wrote: > When was the last time you chased the dust bunnies out of the computer? > > -----Original Message----- > From: boinc_dev [mailto:[email protected]] On Behalf Of > P. K. Carlisle > Sent: Sunday, October 25, 2015 11:55 PM > To: BOINC Devel List <[email protected]> > Subject: [boinc_dev] Excessive BOINC operating temperature > > FYI -- > > Temporarily had to disable BOINC/@Home projects. > > Running CentOS 6.7 64 bit, I noted that temperatures are *quite a bit* > higher than normal. Temps which ranged in the mid 70s C for the past ~2 > years I have been running BOINC were in the 90s C for the past couple of > weeks. Having time to tshoot a bit, I determined that the issue was > BOINC. Disabling ALL BOINC operations returns temperature to expected > levels. > > I have BOINC usage levels set to medium range (having maxed BOINC once > before long ago and burned out a power supply, I am cognizant of this > setting). I changed no usage settings previous to this sudden > temperature increase. > > After I determined that the issue was BOINC I went in and checked:. The > BOINC usage settings I have online at the @Home projects were where as I > had set them. I lowered them still more, but I know that the > --update-prefs flag takes some time to trickle through (a quick reboot > doesn't seem to really do it). I could disable one @Home project at a > time, wait for --update-prefs to really update and check them one at a > time (I may end up doing just that). > > In 24 hours or so I will enable BOINC again and see if the new usage > level settings are recognized and result in lower operating temperature, > but for now a heads up: that without any user change in usage resource > percentage permissions, BOINC appears to be using more resources *to the > degree that the result is :significantly: higher system operating temps*. > > Processor features: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge > mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe > syscall nx lm constant_tsc arch_perfmon pebs bts rep_good aperfmperf pni > dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm xsave lahf_lm dts > tpr_shadow vnmi flexpriority Processor: 2 GenuineIntel Pentium(R) > Dual-Core CPU E6300 @ 2.80GHz [Family 6 Model 23 Stepping 10] > > If anyone wants more system specs, let me know, I can provide, but my > schedule's a bit strange these days, so be patient if I take a day or > two to reply. > -- > > Web: www.pkcarlisle.com > Twitter: @pkcarlislellc > Voicemail: +12026815171 > PGP: 0x35FC1FD4BF3CB150 > > -- > _______________________________________________ > boinc_dev mailing list > [email protected] > http://lists.ssl.berkeley.edu/mailman/listinfo/boinc_dev > To unsubscribe, visit the above URL and > (near bottom of page) enter your email address. > _______________________________________________ > boinc_dev mailing list > [email protected] > http://lists.ssl.berkeley.edu/mailman/listinfo/boinc_dev > To unsubscribe, visit the above URL and > (near bottom of page) enter your email address. > _______________________________________________ boinc_dev mailing list [email protected] http://lists.ssl.berkeley.edu/mailman/listinfo/boinc_dev To unsubscribe, visit the above URL and (near bottom of page) enter your email address.
