Can I SLI???

[AndrewCorbin]

Hi guys,

I have my machine up and running, but I want to add another graphics card to my setup.  However, I was building my machine on a budget originally, and I  am not sure if I have to buy another, higher wattage, power supply.  I am currently running:

intel i5 3570knvidia gtx 660 (want to add a 2nd)
corsair h100i
sound blaster z audio card
tenda wireless adapter
asus z77 sabertooth
samsung 840 120GB (boot)
samsung 1 TB
G.Skill 2x4 GB @ 1866 MHz
rosewill fortress 650W

Thanks! 

[Liam-McShane]

I would say you're ok on that PSU, although you're cutting it close

[TheSLSAMG]

Buy a better PSU, such as a 750W Corsair or Seasonic, and then you can SLI. You may be able to get away with it now, but I am not sure if that PSU will hold up.

[SirRoderick]

There's a tax you need to pay.

 

You can send me the check, I'll take care of the admin for free!

 

[minimoose]

 

Hi guys,

I have my machine up and running, but I want to add another graphics card to my setup.  However, I was building my machine on a budget originally, and I  am not sure if I have to buy another, higher wattage, power supply.  I am currently running:

intel i5 3570knvidia gtx 660 (want to add a 2nd)

corsair h100i

sound blaster z audio card

tenda wireless adapter

asus z77 sabertooth

samsung 840 120GB (boot)

samsung 1 TB

G.Skill 2x4 GB @ 1866 MHz

rosewill fortress 650W

Thanks! 

 

You might be fine if your cpu is not overclocked, but I would get a new psu to be sure.  Also if you have a psu lying around that is like 400 watts or something you can get an add2psu and use them both!

[ionbasa]

Your cutting it a little close with the PSU, my first suggestion, is no. Unless you know the PSU can push that much wattage.

[GeTecknics]

your fine if you dont overclock if you do or want too get a 750watt psu

[Butterfish]

650w is pleeenty for 660 sli. DO ET

[Glenwing]

Moved to Power Supplies section.

[quan289]

Ok...

 

@AndrewCorbin

The Rosewill Fortress is a solid ATNG build PSU, and it's based on the same platform internally as the Fractal Design Tesla R2. With two non-Ti 660 that has a rather modest power draw of <140w each, you can overclock that i5 3570k however you want on that 650w unit and still have room to spare. Don't worry.

[mgsstar]

I would get a 750W psu like a XFX Core 750W to give it some room for overclocking.

[Mitrailleuse]

I have a gtx 660 sli and an overclocked 4670K with a 620W seasonic,

im sure you are going to be fine,

even if you overclock your whole system.