Hey im just curious i just picked up like 10 of these and 2 or of 10 of them are giving me a ERROR: Selftest error. Time out at 2000 ms.

Try worked for about 2 minutes then they started giving that error message using BitMinter Client i download the drivers for it and installed it the VCP drivers

so 2 out of 10 give an error just curious if anyone knows anything about the error and how to fix it.

Using Windows 7 64 bit.