Question motherboard problem or vga problem?

[Mitsuki]

i have an old motherboard am3+(GA-M68MT-S2)with anthlon x245 proc. when i use gtx 460 it doesn't works, the gpu van is on but in the monitor its just blank, not showing anything. when it replaced with gtx 750 its just works normal. i try to test my gtx 460 in other computer and its works normally. the gtx 460 use 6x2 powerpin and gtx 750 not using any powerpin. i use gamemax 450w. i try to check my psu in other motherboard and placing the gtx 460 and its work normally. what's wrong?

 

[alexoiu]

Try testing the card in your pc with different power supply. Maybe it's power related, even if the psu does work in different pc.