esd on gpu

[a_a_mansour]

while my pc was running i was checking some cables attached to the back of my case i accidentally touched the gpu metal (the one that got slots like dvi and hdmi) i felt a little shock when that happened but i didn't hear discharge sound or see spark
so if that was esd would it flow to the inside of gpu and harm it or is it safe as it happened to external part of the gpu ?
nothing happened after this and everything is working fine does that mean no damage was done ?

 

[kanewolf]

Any static was discharged to the case and not to the electronics. It is the same as touching any other metal part of the case.