Will my 550W Be Enough for r9 290

[lhikary]

going to get this
http://www.newegg.com/Product/Product.aspx?Item=N82E16814202103
2x8pins
current setup:
3570k @stock
gigabyte z77-d3h
2x4gb ram 1600mhz
1xhdd
1xssd
1x dvd writer
2x200mm led fans
1x120mm fan

my psu:
thermaltek smart 550w 80 plus bronze
http://www.thermaltake.com/products-model.aspx?id=C_00001818

i read that the r9 290 needs 31Ahow do i know that?

and some question on the side:
will the psu be enough to oc the gpu and cpu and add 2 2x200m fans

 

[Traciatim]

Should be fine. If you take a look at the 290 over at Anand here: http://www.anandtech.com/show/7481/the-amd-radeon-r9-290-review/15

You notice their peak power usage was 384 watts, but keep in mind that's from the wall and not what the power supply is delivering. If their power supply was 90% efficient that means that about 345 watts were actually being put out to the machine by the power supply.

It's really hard to tell by the picture on the thermaltake site, but I think your 12v line is rated for 42 amps, which works out to 504 watts. So if you are using 350 that would put you hovering right around 70% of your capacity. As a general rule of thumb for longevity and reliability you probably want to stick to less than 80% of your capacity. I also doubt your CPU uses the same amount of power as the anandtech test rig (which I believe is a hex core i7...) so you'd probably be running a little less than their example, which should leave you plenty of room to tweak settings if you want.

 

[lhikary]

Should be fine. If you take a look at the 290 over at Anand here: http://www.anandtech.com/show/7481/the-amd-radeon-r9-290-review/15

You notice their peak power usage was 384 watts, but keep in mind that's from the wall and not what the power supply is delivering. If their power supply was 90% efficient that means that about 345 watts were actually being put out to the machine by the power supply.

It's really hard to tell by the picture on the thermaltake site, but I think your 12v line is rated for 42 amps, which works out to 504 watts. So if you are using 350 that would put you hovering right around 70% of your capacity. As a general rule of thumb for longevity and reliability you probably want to stick to less than 80% of your capacity. I also doubt your CPU uses the same amount of power as the anandtech test rig (which I believe is a hex core i7...) so you'd probably be running a little less than their example, which should leave you plenty of room to tweak settings if you want.

hmmmm anyone else share his opinion ?

 

[Suztera]

550W should be fine for any single gpu setup. you can get a 650w if you still uncomfortable. 550W is enough though.
Rule of thumb if the power supply does not have sufficient connectors, you should not use it.

 

[lhikary]

550W should be fine for any single gpu setup. you can get a 650w if you still uncomfortable. 550W is enough though.
Rule of thumb if the power supply does not have sufficient connectors, you should not use it.

hmmmmm
i already have the 550w tho 🙁