Hi,

I just wanted to let you know that I'm having big trouble with BOINC software. About a month ago my PC stopped working seriously, it only worked on Safe Mode, on normal mode it would get stuck in any operation, i thought maybe I got a virus but I scanned the whole PC for nothing, also tried to restore the system because "maybe" it was because of an update from Windows or Quicktime I installed that day. Well, after a couple of days guessing I read the Event Log and there said that i had a failure with the Hard Drive or its drivers. So I just researched a little bit and decided to run CHKDSK /R utility. Finally my PC got to work again.

A day before yesterday II had a worse problem, Windows wouldnt even log on. It was a great pain to log in in Safe mode also.

I figured the system messed up when i shut down the computer, and that both times I restarded or shut down the computer, and failed, I was running BOINC.

I think it's something related to actions (made by BOINC) during or before shut down.

So I just wanted you to know that I'm uninstalling until i find something stable that wont make my PC stop working for a week. I'm not 100% of failures cause but i tell you, I'm very sure it's because of BOINC.
Thanks for your patience, I hope you can use this info for something. Sorry my redaction, I'm almost sleep.

I read the Event Log and there said that i had a failure with the Hard Drive or its drivers.

I'm familiar with that one. Had it as well and had to change out my motherboard. It wasn't a problem with the hard drive or its drivers, but with RAM slot number 2. Any RAM I put in there would cause my system to work irregularly, BSODs at any point. Running memtest86+ would give errors within the first 5 minutes.

It would also stop when I stopped running BOINC.

BOINC is a great thing for finding problems like that. So I would advice you to look further and set your system under stress using something else. A heavy game, or Prime95. If those break your system down as well, then you have a similar problem and then only a new motherboard can fix that problem.

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I ran the BIOS memory test but showed up no errors; in addition I will provide you my system specs. I understand your point but I don't know if I explained myself correctly. The system failures occur when shutting down or restarting the computer while BOINC is still running, not every time but it has happened to me twice until now. My system does not fail while running BOINC and using the computer normally, nor where I manually exit BOINC with “also stop running science applications” option checked. Please tell me if you got my idea.

My system specs:

02/05/2010 11:40:28||Starting BOINC client version 6.10.43 for windows_x86_64
02/05/2010 11:40:28||log flags: file_xfer, sched_ops, task
02/05/2010 11:40:28||Libraries: libcurl/7.19.7 OpenSSL/0.9.8l zlib/1.2.3
02/05/2010 11:40:28||Data directory: C:\ProgramData\BOINC
02/05/2010 11:40:28||Running under account Danilo
02/05/2010 11:40:28||Processor: 2 GenuineIntel Intel(R) Core(TM)2 Duo CPU T9300 @ 2.50GHz [Family 6 Model 23 Stepping 6]
02/05/2010 11:40:28||Processor: 6.00 MB cache
02/05/2010 11:40:28||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 htt tm pni ssse3 cx16 sse4_1 syscall nx lm vmx tm2 pbe
02/05/2010 11:40:28||OS: Microsoft Windows 7: Ultimate x64 Edition, (06.01.7600.00)
02/05/2010 11:40:28||Memory: 4.00 GB physical, 8.00 GB virtual
02/05/2010 11:40:28||Disk: 220.65 GB total, 32.73 GB free
02/05/2010 11:40:28||Local time is UTC -5 hours
02/05/2010 11:40:28||NVIDIA GPU 0: GeForce 8400M GS (driver version 18766, CUDA version 2020, compute capability 1.1, 256MB, 26 GFLOPS peak)

It is ALWAYS advisable to shut down BOINC and the science apps before turning off the computer.
This has become even more important with the last 2 versions of Windows, which is touted as shutting down faster than ever.
Otherwise you risk losing the work in progress, especially for cpdn work.

Some people get away with it, others don't.
It sounds like the OP is one of those who doesn't.