Hisham_16 :
That is an ancient power supply from before the 12v rail became the most important part of a power supply. Like 2005 or older. In fact if I'm reading that correctly it only supplies 8 amps on the 12v rail and since amps x volts = watts that means it only can supply 96 watts. Since the 12v rail powers the CPU and graphics card that's not enough for any discreet graphics card no matter how low power it is. Deposit that thing in the nearest trash can and get a new power supply.
i heard about the coolmax 500 watt psu , how is that?
Sadly enough it's better than what you have but its still low quality garbage.You want a tier 1 or 2 unit, you can go tier 3 if necessary and the system will be under a light load, but avoid tier 4 and especially avoid tier 5, tier 5 is usually system killing garbage. Coolmax is tier 5
http://www.tomshardware.com/forum/id-2547993/psu-tier-list.html