780ti sli on a RM650x?

[Lord_Karango17]

So I dont really play enough games to justify spending very much on a new gpu, however used 780ti's are getting very cheap because they are pretty slow these days. Since my card has a waterblock on it, and I dont have the stock cooler, I woudnt really be able to sell it, so getting a 2nd card seems like the simplest option.

Only problem is that I only have a rm650x. While it is gold rated, and pretty good from what I've read here, would it be able to handle 2 fairly high power draw cards?

My cpu is overclocked but voltages are stock so power draw is likely not much more than normal.

[STRMfrmXMN]

1 minute ago, Lord_Karango17 said:

So I dont really play enough games to justify spending very much on a new gpu, however used 780ti's are getting very cheap because they are pretty slow these days. Since my card has a waterblock on it, and I dont have the stock cooler, I woudnt really be able to sell it, so getting a 2nd card seems like the simplest option.

Only problem is that I only have a rm650x. While it is gold rated, and pretty good from what I've read here, would it be able to handle 2 fairly high power draw cards?

My cpu is overclocked but voltages are stock so power draw is likely not much more than normal.

With a 3770 and two 780tis I'd probably go minimum 750W for my own personal system. But why not sell your 780ti and get some money back and get a used 980ti or something?

[treeroy]

I have a 780ti and 650W PSU, always wanted to SLI them but I have read quite a bit on it and it really doesn't seem like 650W is enough. read lots of reviews of 780ti SLI and under load it will go over the limit of your PSU although obvs depends partly on the rest of your system, what you're playing, and what aftermarket version it is.

 

 

The cards are still not that cheap even after 3 years (here they are all £150+) so in my opinion after everything I read, it's not worth the risk.

[NTDaws]

You should have at least 750 watts if you are not overclocking.

[Lord_Karango17]

1 minute ago, STRMfrmXMN said:

With a 3770 and two 780tis I'd probably go minimum 750W for my own personal system. But why not sell your 780ti and get some money back and get a used 980ti or something?

I don't have the stock cooler with me right now, and not many people want to buy a card with a water block on it. The cheapest 980ti's ive seen are like $450 so If I could sell my car for over $200 it could work...

[Lord_Karango17]

3 minutes ago, treeroy said:

I have a 780ti and 650W PSU, always wanted to SLI them but I have read quite a bit on it and it really doesn't seem like 650W is enough. read lots of reviews of 780ti SLI and under load it will go over the limit of your PSU although obvs depends partly on the rest of your system, what you're playing, and what aftermarket version it is.

I do have my old not very healthy cx750m so if I wanted to pull an austin, I could hook up a second psu to the 2nd card...

Based on the coilwhine it makes, that probably isnt a good idea...

[STRMfrmXMN]

24 minutes ago, Lord_Karango17 said:

I do have my old not very healthy cx750m so if I wanted to pull an austin, I could hook up a second psu to the 2nd card...

Based on the coilwhine it makes, that probably isnt a good idea...

Coil whine doesn't correlate to being a bad PSU but let's not pull an Austin Evans and let's keep things to one PSU.

 

If you don't have the original shroud it will most certainly be harder to sell your GPU. Perhaps advertise it for awhile and see what people offer for it.

 

Also an EDIT: With a heavily overclocked 3960X and two 780tis in SLI the system Guru3D used reached 617W demanded under load which is a little too close to comfort for me but would technically work for you if you avoided overclocking. http://www.guru3d.com/articles-pages/gtx-780-ti-sli-geforce-review,4.html

[Gonio]

If you don't really OC the cards would say your still fine with the 650W.

[Coaxialgamer]

650W is REALLY pushing it . I'd get 750w minimum , or a new gpu.

[Lord_Karango17]

20 hours ago, Gonio said:

If you don't really OC the cards would say your still fine with the 650W.

 

19 hours ago, Coaxialgamer said:

650W is REALLY pushing it . I'd get 750w minimum , or a new gpu.

Yeah, once I did the math, if I got $200 for my card, Id be able to pitch in another $250 to afford a 980ti or 1070. Nvidia cards dont seem to age well, so getting the newer card when given the option, even if performance is compareble to an older one, seems like a better option.

[Mick Naughty]

I wouldn't run it on 650. Id had a similar set up recently. 3770k and a pair of Titan blacks. Only a few 650 psu have enough amperage to support a single card of that caliber. 750 minimum, good brand.