Power supply units keep blowing

[terry5880]

Hi all got a hp media centre pc turned on and as loading it died and the psu went dead so ordered another one from ebay as it is rare psu hipro 5187-4875 got it this morning unwrapped it plugged it all in bingo turned on but then as loading it blew what can be making them blow . thanks in advance

 

[terry5880]

UPDATE I found out person I got it off they had a friend looked at it who said he stripped it is it possible he has put it back in wrong or something as it comes on for like 20 seconds then boom kills psu and then dont work after that psu is totally dead

 

[terry5880]

Anyone got any suggestion pleaseeeee

 

[LinkedKube]

Get a power meter, cost like 4 bucks, check your outlets

 

[terry5880]

Im thinking something shorting them out in the case as thats 2 blown in it

 

[LinkedKube]

Make sure your motherboard stand off screws aren't causing the issue.