1250w PSU good enough for 4x280x

[bjalbert]

Some people say each card uses 250w and others max 300w 8pin +6pin + mobo= 150w+75+75w.

I plan on getting a Seasonic or other top brand 1250w PSU but wanted to double check how runs 4x280x and if they had issues just using 1250w psu. This one has a nice 104A rail:

Seasonic 1250w

[1715651829]

1715651829

[1715651829]

1715651829

[1715651829]

1715651829

[1715651829]

1715651829

[1715651829]

1715651829

[NixZiZ]

Yeah probably.

I am the type of person who would go overkill and use a 1500 watter.

[Beastlymac]

From my testing each 280x uses 250w at max load (mining) so you should be fine.

[psijic]

From my testing each 280x uses 250w at max load (mining) so you should be fine.

Were you undervolting your cards, or were they running at stock configuration?

[bjalbert]

I think most 280x cards have voltage locked with the exception of the asus matrix. I have the asus DC2T and I can't change the voltage using cgminer or any other software. Maybe just bad luck who knows.

[msbtc]

should be fine.

I'm running 4 R9 290x on a 1200W with no issues (thus far)! 

in a very cold room though with the windows open- near freezing outside.

[jacoo]

I think most 280x cards have voltage locked with the exception of the asus matrix. I have the asus DC2T and I can't change the voltage using cgminer or any other software. Maybe just bad luck who knows.

Try Trixx, Works great for me. I have 3x Asus r9 289x.