I just started getting these bsod's and can't figure them out. I read where Symantic may be the problem but am not sure. I have run memtest86 and ram is fine also tried both G-cards seperately and they seem to be OK also.
The PC loads to the login screen, I enter my password and windows loads and the desktop apears, that is where it go's BSOD. I can usually retsart it and it will load OK and seems to run fine.

Any ideas?

srtsp64.sys is a Symantec Auto Protect driver. It could be you are infected or that Symantec is acting up (and, yes) many, many people have issues with Symantec).

Scan for infections first. Then if that doesn't resolve the issue either update, uninstall and reinstall Symantec, or uninstall Symante and then use their Removal Tool for your version from their website, and finally find a better security solution.