About several days i have experienced problems with WU's. I don't mind the loss of credit, bat with the time expended for nothing, i am member since 30/03/2009 without problems, and it start now.
About several minutes of computation or one or two hours the computing the WU's finished saying error miscalculation, (in Portuguese Erro de cálculo) i am trying with news WU's if work well better if do not i go choose No new tasks, because i do not know what can i do

The BOINC has the Version 6.4.4 wxWidgets Version 2.8.7

The S.O. LINUX UBUNTU 8.04.3

KERNEL 2.6.24-24-generic


Intel(R) Core(TM)2 Duo CPU E8500 @ 3.16GHz /6M/1333/06
NVIDIA GeForce 8400 GS 256 MB DDR2
RAM OCZ REAPER DDR2 2x1GB PC 9200 1150 MHZ
And i have O.C. CPU 4275 Mhz
RAM 5-5-5-18-6-33-6-11-11
CPU V. 1.4125
DRAM V. 2.3
Temps Ok
Watercooling EHEIM aquastream XT USB firmware-Version 1010
Temp Ok

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You are getting code 193 errors which relate to memory/swap file problems. Take a look here: http://boincfaq.mundayweb.com/index.php?view=238&language=1

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Thank you for information, i changed already for another RAM Team Elite de 2x500 Mb of the other machine, the situation worsened in minutes and nine blocks of Setihome and two Milkway gave the same error
With these Ram it is need swap the Total is 282 Mb and now is free 65%

The size of 282 Mb were in connection with the foregoing which are 2x1 GB

Now i dont know nothing

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Well i not know if this is the solution bat until now is working, i am downing the O.C. from 4.27 Ghz for 4.19 Ghz
Bat i do not understand why this problem start now, because before all work fine

Hitting the peak of summer temperatures at the moment? If so then yes backing off your overclock will help. I'd also consider cleaning the dust out of your computer. If that doesn't help then back your oc further.