shadow32 :
NO! That is WAY too small How are you even running the current setup without the video card on that PSU?
Most GPU-less Intel-based PCs these days use less than 100W under full-load so 90W is quite possible. However, I do not think anybody makes 90W PSUs in standard ATX form factor so if OP really has a 90W PSU, his PC most likely has some form of compact ATX PSU variant.