Im not to good with computers, so have a look. http://www.microcenter.com/product/428500/H535_Desktop_Computer
OEM PSU usually good in terms of quality. for cards like 7750 a good quality 300w should be enough. so i'd expect your 280w still able to cope with 7750
Im not to good with computers, so have a look. http://www.microcenter.com/product/428500/H535_Desktop_Computer
OEM PSU usually good in terms of quality. for cards like 7750 a good quality 300w should be enough. so i'd expect your 280w still able to cope with 7750