How many GPU for 630W PSU?

[ak84]

Hi all, I"m wondering how many GPU my power supply can support. I have a 630W RaidMax http://www.newegg.com/Product/Product.aspx?Item=N82E16817152035

which is powering a GTX 660 TI (150 Watts max according to nvidia website)

I guess my PSU could probably handle another  200W rated GPU such as 5850, 5870, etc.

Do you think it can also handle a 3rd, like a hd 5770? (only requires 108 watts)

edit: after doing much research, it seems adding 3rd GPU might be pushing it, even if that gpu only takes 108 W

[vpasic]

not a chance.
don't even think about it!

[DarkKnight]

528w max on the 12v rail... Nevermind that running it near capacity for extended periods will burn out your PSU quickly.

http://www.jonnyguru.com/forums/showthread.php?t=8285

Likely your PSU rating is overstated. Don't even bother mining with the 660TI. That's worth what 180MH/s? Not worth the power costs, even if *you* aren't paying the power bill.

[ak84]

Ok guys, I guess the consensus is to not add any more GPU

Well I recently bought a 750W Corsair HX
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139010

This can handle two GPU right? 6870 x2 or 5850 x2

Thanks

[slk_wow]

I have the same supply, I can use two GPU R7950 with it.

[ak84]

I have the same supply, I can use two GPU R7950 with it.

thanks, did you mean the corsair 750W or my raidmax 630W?