Can SLI run on 550W?

[GloriousPain]

My friend has ordered parts first asked opinion second and apperently SLI 770s are supposed to run on a 550W PSU I don't think that was a smart move on his part and his best retort is "They're by Nvidia not AMD"  .-. am I really in the wrong here? Maybe he'll believe you guys...



NOTE: this is in general discussion cause I don't know if it fits under Graphics cards or power supplies more

[Askew]

No, whoever told you it could 'because Nvidia' is a moron.

 

Use 750W as a minimum, preferably use 850 to allow for lower operating temperature and higher operating efficiency of the PSU.

 

Buying 4GB 770s is another bad decision, he could have taken the money saved by buying 2GB ones towards a decent PSU, or better still just bought a single 780.

[CoolBeans]

750 minimum 

[MattP123]

No

[Clyne]

no 750w or higher

[KieranFretwell]

NEIN!

[daemonowner]

Expect 230W TDP per card. 650W minimum in my opinion. 750W preferably.

[Guest]

I wouldn't do it. A really high quality 650W PSU can totally do that, but 550W is too close for comfort.

[Guest Kloaked]

They'll run, but the PSU will be a gigantic bottleneck when SLI is enabled.

[GloriousPain]

No, whoever told you it could 'because Nvidia' is a moron.

 

Use 750W as a minimum, preferably use 850 to allow for lower operating temperature and higher operating efficiency of the PSU.

 

Buying 4GB 770s is another bad decision, he could have taken the money saved by buying 2GB ones towards a decent PSU, or better still just bought a single 780.

These were my thoughts exactly specially since he works at local hardware store and could've gotten 290 Tri-Xs for the same price >.< note: store does not sell Nvidia parts he got them off newegg.

[Askew]

These were my thoughts exactly specially since he works at local hardware store and could've gotten 290 Tri-Xs for the same price >.<

 

He is going to learn the hard way this time, always ask first if you don't know what you're doing or you get the pleasure of not only wasting money but having your friends go and confirm your madness on a forum lol.

[Nineshadow]

Your entire system would use at least about 550W(no OC-s,etc.).

650W is the minimum you should go with.

700/750W is recommended.

[Henleyz]

Not at all haha

[Butterfish]

Expect 230W TDP per card. 650W minimum in my opinion. 750W preferably.

TDP is not the same as power consumption bla blah blaaah! Linus said so at least

[GloriousPain]

Expect 230W TDP per card. 650W minimum in my opinion. 750W preferably.

Cards usually use Above their TDP in actual power.... and I agree nearly completely I said a 700W with 800-850 preferably as my friend likes to OC alot

 

I wouldn't do it. A really high quality 650W PSU can totally do that, but 550W is too close for comfort

too close for comfort? I don't think it's close atall my maths are showing 590-630W w/ no OCs and lets just say he won the lottery with his 4930k (5.3Ghz @ 1.41V) and a few other things have just given him a power hungry system (eg 4 Intel 730s in Raid 10, and 8 Velicoraptors also in Raid 10)

 

They'll run, but the PSU will be a gigantic bottleneck when SLI is enabled.

I don't think that's how it works  

 

He is going to learn the hard way this time, always ask first if you don't know what you're doing or you get the pleasure of not only wasting money but having your friends go and confirm your madness on a forum lol.

Yeah he's currently sweating bullets... LOL 

 

Your entire system would use at least about 550W(no OC-s,etc.).

650W is the minimum you should go with.

700/750W is recommended.

if my maths are right it'll be 590-630 w/o No OCs

 

TDP is not the same as power consumption bla blah blaaah! Linus said so at least

Correct TDP is howmuch heat is released as heat is a form of energy which is why its measured in Watts

[Totally-A-Hero]

No, whoever told you it could 'because Nvidia' is a moron.

 

Use 750W as a minimum, preferably use 850 to allow for lower operating temperature and higher operating efficiency of the PSU.

 

Buying 4GB 770s is another bad decision, he could have taken the money saved by buying 2GB ones towards a decent PSU, or better still just bought a single 780.

wrong, could have bought a 290!

[menendez1293]

A really high quality PSU could probably run both cards at idle but once you start doing anything intensive, it will more than likely pass the PSU. 

[Frankie]

And these types of people ''They're by Nvidia not AMD'' end up with console, b*tching about how PC's are not reliable

 

P.s. Show this thread to you friend, crush his spirit. ??? Profit !

[Guest]

TDP is not the same as power consumption bla blah blaaah! Linus said so at least

 

http://www.guru3d.com/articles-pages/geforce-gtx-770-review,5.html

Pretty much 200W per card. I've tested my system with an OCed 4670k and one overclocked 770 at 100% full load on both parts and the power consumption was at 320W-330W from the wall. So, a 550W PSU (as long as it can provide enough mower on the +12V rails) could power that system with another 770, but (as I said) it is insanely close and I would never be comfortable with that. So, we could say that technically his friend is right, but it's still a stupid decision.

 

too close for comfort? I don't think it's close atall my maths are showing 590-630W w/ no OCs and lets just say he won the lottery with his 4930k (5.3Ghz @ 1.41V) and a few other things have just given him a power hungry system (eg 4 Intel 730s in Raid 10, and 8 Velicoraptors also in Raid 10)

 

Okay, with that OC and that many harddrives, no way. No overclock on the CPU and one SSD and one HDD would potentially work with a very good PSU.

[Guest Kloaked]

 

I don't think that's how it works  

 

 

Ya, I was tilting my head after I posted that. Had to Google around and refresh my memory.

[GloriousPain]

And these types of people ''They're by Nvidia not AMD'' end up with console, b*tching about how PC's are not reliable

 

P.s. Show this to you friend crush his spirit. ??? Profit !

LOL he's actually been a PC gamer for longer than I have he's just a fanboy >.< is all and yeah his spirits are crushed... according to him "AMD cards are made for two things mining scrypt coins and being a paper weight... and Scrypt coins are no longer profitable"

[Frankie]

LOL he's actually been a PC gamer for longer than I have he's just a fanboy >.< is all and yeah his spirits are crushed... according to him "AMD cards are made for two things mining scrypt coins and being a paper weight... and Scrypt coins are no longer profitable"

 

Well I am kind of a Nvidia fanboy, because they always worked for me and never die (My cards ofc). But you should be able to see as an enthusiast that AMD make some awesome stuff. R9 295 X2 - Nvidia got rekt.

[GloriousPain]

Well I am kind of a Nvidia fanboy, because they always worked for me and never die (My cards ofc). But you should be able to see as an enthusiast that AMD make some awesome stuff. R9 295 X2 - Nvidia got rekt.

yeah if you goto the right store (I have a local one they don't sell any Geforce products other than Titan, Titan Black, and Titan Z they don't like Nvidia much and they only sell few quadros) where the Titan Black genuinely depending on the week will cost within $50 of the 295x2 some times more albeit when its more its usually 10-50 more when it's less it can be as much as 200 less. but I laugh seeing 295x2 for $1350 and Titan Black for $1369.99 (which I saw inperson the 50 more I mentioned I only heard from my friend that this thread is about as he works there)

[Frankie]

In my country the R9 295 X2 is significantly more expensive than Titan Black, but I thought that R9 295 X2 is more of a competitor to TITAN Z wich is more than double than R9 295 X2.

 

@GloriousPain I derped and didn't quote. Too lazy to repair it

[Guest]

If you're SLIing two gt 610s, MAYBE