I am running CPDN thru BOINC 5.2.13 on my faster machine (Intel Pentium 4 CPU 1.60GHz; Microsoft Windows XP Home Edition, Service Pack 2, (05.01.2600.00)) and keep finding that, after a while running, the system tray icon for BOINC will become nonresponsive--it won\'t open the BOINC manager or allow me to exit the program from the tray.

The BOINC program also won\'t respond to a shutdown request for a computer restart, so I am forced to \"End Program\" and risk those warnings.

The task manager seems to indicate that the CPDN processes are still active and using the full CPU power.

This doesn\'t happen with any other BOINC application as far as I have found (I run 10 others on another, slower Windows XP machine), and so I am guessing that this is a CPDN problem rather than a BOINC problem, but I really don\'t have much of an idea.

The host link:
http://climateapps2.oucs.ox.ac.uk/cpdnboinc/show_host_detail.php?hostid=265183

The current CPDN application is:
application HadCM3L Coupled Model Experiment
created 16 Apr 2006 9:52:41 UTC
name hadcm3lbm_06ly_05064705

Work unit ID:
http://climateapps2.oucs.ox.ac.uk/cpdnboinc/workunit.php?wuid=5069686
http://climateapps2.oucs.ox.ac.uk/cpdnboinc/workunit.php?wuid=5069686

---

Hi Matt,

The two most common reasons for machines becoming unresponsive are:

* Overheating of the CPU (this can be checked by something like Everest, MotherboardMonitor, ASUSProbe....)

and

* Insufficient Memory (causing swapping out to disk). This doesn\'t normally strike at 512MB, but it may be worth using TaskManager to have a look at what\'s using memory.

---

I'm a volunteer and my views are my own.
News and Announcements and FAQ

Hi Matt,

The two most common reasons for machines becoming unresponsive are:

* Overheating of the CPU (this can be checked by something like Everest, MotherboardMonitor, ASUSProbe....)

and

* Insufficient Memory (causing swapping out to disk). This doesn\'t normally strike at 512MB, but it may be worth using TaskManager to have a look at what\'s using memory.

I have exactly the same problem as Matt and my CPU is not running hot and I have 1.5GB of memory. I was running an earlier version of the software and that did not have this problem.
Anyone know what else could be causing this?

---

I have exactly the same problem as Matt and my CPU is not running hot and I have 1.5GB of memory. I was running an earlier version of the software and that did not have this problem.
Anyone know what else could be causing this?

HT P4s expect dual-channel memory. Your 1.5 GB is mismatched and could be unstable under load. (Have you run hours of Memtest-86 and a day of Prime-95 Torture Test [two copies, simultaneously] to verify stability?)

Have you changed/updated software lately, viz. Firewall, or Anti-virus program or settings?

(Note that your machine finished some \'slab\' Models but had trouble with the more demanding Sulphur Cycle and Coupled Models.)


[Edited typo.]

---

"We have met the enemy and he is us." -- Pogo
Greetings from coastal Washington state, the scenic US Pacific Northwest.