Hi,
I got an old pc following are the specifications
Dell Optiplex 755
4gb ddr2 ram
300watt built in psu
I have got another PSU ( Cooler masterExtreme Power Plus 500W )
http://www.coolermaster.com/powersupply/extreme/extreme-power-plus-500w/
Note : I used this power supply to run my r9 270x on another pc, which i am currently using for mining. I want to buy another r9 280x or r9 290x and connect the power supply 6pin connectors to the gpu but in the old system i.e ( Dell Optiplex).
I am currently running 1x r9 270x + 1x r9 290 on my mining rig with corsair TX850 smoothly. I just wanted to know if its possible to to buy a new card as mentioned above and connect the external 500watt psu only to the card but not to the motherboard ?? as the motherboard and other parts of the computer will run on the builtin psu which is 300watt.
I got an old pc following are the specifications
Dell Optiplex 755
4gb ddr2 ram
300watt built in psu
I have got another PSU ( Cooler masterExtreme Power Plus 500W )
http://www.coolermaster.com/powersupply/extreme/extreme-power-plus-500w/
Note : I used this power supply to run my r9 270x on another pc, which i am currently using for mining. I want to buy another r9 280x or r9 290x and connect the power supply 6pin connectors to the gpu but in the old system i.e ( Dell Optiplex).
I am currently running 1x r9 270x + 1x r9 290 on my mining rig with corsair TX850 smoothly. I just wanted to know if its possible to to buy a new card as mentioned above and connect the external 500watt psu only to the card but not to the motherboard ?? as the motherboard and other parts of the computer will run on the builtin psu which is 300watt.