Multiple BSOD's random started 2 days ago

I think I have a hardware error, I just ran prime95 and it bsod within seconds

I installed a new graphics card 2 weeks ago and got a couple of bsod's while installing drivers but once installed ran ok no more bsods
then I tried to install windows 7 2 days ago onto a new 500gb ssd drive
I unplugged my 4 sata drives and installed win7 onto the new drive and then plugged all the drives back in and during windows update got bsod
I tried to update many times and got either bsod or just a switch off and reboot
I formatted ssb drive and tried again but still got bsods during drivers updates
I gave up trying to install win 7 to the new drive and instead booted to my sata win7 os and am now experiencing bsod's whenever I do anything labour intensive ie gaming or running prime 95
I uninstalled the new graphics card and fitted the old one but am still getting them
in event viewer it is the same error and I have attatched a dump zip file

The previous system shutdown at 06:13:47 on ?30/?08/?2015 was unexpected.

if I try running prime95 in default settings - blend tests with lots of ram after maybe 10 seconds I get BSOD
event viewer shows a critical level error source- Kernel-power event id 41 task (63)

memtest 5 passes no errors so I gave up on that as I get a bsod within seconds on prime95
gonna play with that a bit, I reckon its psu motherboard or cpu
I don't really know what im doing so would appreciate some help/pointers
cheers

Hi aljaxon,

Do you mind to use the tool again and upload the zip file?
I would like to take a look at the crashes, but I prefer to have updated information about your system to prevent useless suggestions or that I might miss something.