Ok so I'm hearing this alot psu so what is it an how do I upgrade it? as if you mean buy a more power full power pack say 400w or 500w it says on HP if I don't use the recommended pack I'll void my knowhow insurance? I've a good mind ring them an say hey I've never made a claim since 2012, you put the new gtx graphics card in an sort what not as I get a pc check-up yearly. So why shouldn't all that be covered guess I'm calling them later. Thanks! Emz