I got 2 instances of this error.
The system cannot find the path specified. (0x3) - exit code 3 (0x3)

1st: 1869948
SWAN : FATAL : Failure executing kernel sync [PmeKSpace_compute_energy_kernel] [999]
Assertion failed: 0, file ../swan/swanlib_nv.cpp, line 203

2nd: 1835803
SWAN : FATAL : Failure executing kernel sync [fft_data_swizzle_out] [999]
Assertion failed: 0, file ../swan/swanlib_nv.cpp, line 203

what's cause?
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In both you have GTX260's. Are they the 65nm variety?
If so they tend not to work with GPUgrid. Unfortunately neither wu says which device they were running on (it used to).

You might need to run GPU-Z to determine what sort they are.

This is the best thread to post this in. I have a Gigabyte GTX 470 using driver 301.42 I'm using boinc 6.10.60. Tasks used to run fine. I thinks it has some thing to do with cuda42. In the last 4 days I've managed to return 1 beta task trypsin_lig_15ligsolo_run1-NOELIA_rerankingequ-0-1-RND3173_0 Almost all my other tasks are failing with:
6.10.60

The system cannot find the path specified. (0x3) - exit code 3 (0x3)


SWAN : FATAL : Cuda driver error 1 in file 'swanlibnv2.cpp' in line 1330.
Assertion failed: a, file swanlibnv2.cpp, line 59

This application has requested the Runtime to terminate it in an unusual way.
Please contact the application's support team for more information.

Os this hardware or software related?

Sounds like software. Try a clean updte to the newest WHQL driver.

MrS