Hello. I recently bought a Sapphire Radeon R7 250 128-bit 1GB GDDR5 11215-00-20G ( http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=8573342 ) for my Dell Inspiron 545 MT that has following: DG33M06 motherboard, and Intel Core 2 Quad Q8200 2.33GHz, Media card reader (SD etc.), two factory fans (processor and case), CD/DVD drive, Hard Drive (factory one that has about 1 TB) and about 6 USB ports and I would like to know if this http://www.amazon.com/Corsair-Builder-Series-Watt-CX600/dp/B0092ML0OC/ref=sr_1_6?ie=UTF8&qid=1395700719&sr=8-6&keywords=750+watt+power+supply CX600 power supply will be enough for my computer? And also is it compatible with my motherboard(DG33M06), processor, and graphics card? My another question is can I replace a 64bit graphics card (Radeon 3450) with the 128 graphics card I described above?Thank you in advance.
P.S. I am aking because it is my first time upgrading a computer, and when I chat with people form tigerdiect, each agent answers me dfferent Wattage(form 550W to 800W), and I am confused now, and also I did not have any luck using one of those online calculators.
P.S. I am aking because it is my first time upgrading a computer, and when I chat with people form tigerdiect, each agent answers me dfferent Wattage(form 550W to 800W), and I am confused now, and also I did not have any luck using one of those online calculators.