I'm building a computer for a friend, using some second hand parts from another friend who I built a computer for. The motherboard, CPU, GPU and PSU are all second hand parts. So I pop the computer together without any problems but then around half an hour later it just goes off and I can't get a signal on the display. Eventually I work out that the graphics card just isn't being detected anymore and it's defaulting to integrated graphics. This doesn't happen when I pop an old card in so I just assumed the card had died somehow.
Anyway the guy who I'm building it for decided to get another graphics card (660ti) second hand from another friend. So I get that in and I've finished installing all the Nvidia drivers etc, then do a restart. BAM! No display. This time a series of beeps occurs with this card and it doesn't default back to integrated. Again, everything is fine when I pop an old card in I have laying around.
Neither card works in my desktop so they are definitely both gone, but what on earth could be causing it? The PSU is a cheap brand (CIT 650W) and the motherboard is a low-end gigabit one but both worked fine before.
Anyway the guy who I'm building it for decided to get another graphics card (660ti) second hand from another friend. So I get that in and I've finished installing all the Nvidia drivers etc, then do a restart. BAM! No display. This time a series of beeps occurs with this card and it doesn't default back to integrated. Again, everything is fine when I pop an old card in I have laying around.
Neither card works in my desktop so they are definitely both gone, but what on earth could be causing it? The PSU is a cheap brand (CIT 650W) and the motherboard is a low-end gigabit one but both worked fine before.