680 tri sli 1050W PSU enough?

[k1ngm4c1u51]

Hi guys

I want to do tri sli with 680s but I'm not sure about my PSU can handle it
Here is full spec of my current PC:

i7 3930K @ 4.4Ghz @ 1.285 BIOS (was stable 1.25 in prime but not in OCCT)
Asus P9X79 PRO (latest bios)
Corsair Dominator PLATINUM 16GB 1866Mhz
Corsair Force GT 240GB 2.5" SSD 6Gb/s
MSI GTX 680 - 2gb version
XFX 1050W Black Edition Pro
Corsair Hydro H100i

Is XFX 1050W B.E. PRO can handle it? I read reviews that 3x680s at full load taking 650W from PSU. Do I need to change it or XFX is ok with them?

 

[alienware]

Depends on what is inside the XFX. If it's Seasonic then yeah, it's got more than enough power.

I would check how the rails are laid out and so forth but you shouldn't have any problems tbh.

 

[Bruteforce]

should be plenty, you should be 850ish watts under full load with that setup

 

[S_I_N]

850 would in most opinions be pushing its limits 1050 however should be fine. you need to look at watts and amps together to be 100% sure

 

[Ator]

Depends on what is inside the XFX. If it's Seasonic then yeah, it's got more than enough power.

I would check how the rails are laid out and so forth but you shouldn't have any problems tbh.

As far as i know and as this site states all current xfx psu are made by seasonic http://www.realhardtechx.com/index_archivos/Page625.htm

 

[seumasbeathan]

Tbh the AX760i could probly handle it, so a decentish xfx 1050w one should be just fine
But I must ask, what res will you be playing at and with how many monitors?

 

[XANADV]

My rig draws around 450-500W under load with 3770K and two GTX 680s. Given that information your PSU should be able to handle a 3rd card.

 

[alienware]

As far as i know and as this site states all current xfx psu are made by seasonic http://www.realhardtechx.com/index_archivos/Page625.htm

That explains why they are now the PSU of choice in Custom PC..

Yeah will do it with its eyes closed. All there is to worry about now is driver nightmares lol.

 

[Scoob]

My rig draws around 450-500W under load with 3770K and two GTX 680s. Given that information your PSU should be able to handle a 3rd card.

Seeing very similar power draw myself, 2500k @ 4.6 and 2x GTX 680's @ 1200 (boosted) - in fact, I'm pretty amazed how little this setup uses. My AX860i PSU rarely spins up its fan...freaky.

Scoob.

 

[sonrise]

should handle it more than fine.

 

[leathart123]

yeah should be fine

 

[k1ngm4c1u51]

Tbh the AX760i could probly handle it, so a decentish xfx 1050w one should be just fine
But I must ask, what res will you be playing at and with how many monitors?

well at the moment is one Benq XL2411T - 1920x1080 @ 144hz
reason: I want to max out Crysis 3 and future games so I want to play with AA all maxed etc.

To all guys who posted here: Thanks very much for your help

 

[NRG!]

Which msi 680s? Any overvolting?

I know of a guy that went to 3930k o/c + 2 x 680 ltg o/c and had to buy a new psu because he was overloading the 750w psu he had iirc

 

[k1ngm4c1u51]

Which msi 680s? Any overvolting?

I know of a guy that went to 3930k o/c + 2 x 680 ltg o/c and had to buy a new psu because he was overloading the 750w psu he had iirc

Im scared now I should have 3 GTXs tomorrow (Saturday 16th) I will put my CPU on stock and than I will add GTXs hope so this PSU can handle it if not I will leave on SLI till Monday and if need it I will buy another PSU like 1200W.
My GTX 680 are from MSI with following specs:

- Core Clock: 1006MHz (GK104)
- Core Boost Clock: 1058MHz
- Innovative thermal design: Vapour Chamber (Quieter & Cooler than previous generation)
- Memory: 2048MB GDDR5
- Memory Clock: 6008MHz (Effective)
- Memory Interface: 256-Bit
- Processing Cores: 1536
- Shader Clock: 2012MHz
- Bus Type: PCI-Express GEN 3.0 (Backwards compatible)
- Display Connectors: 2x Dual-Link DVI-I, 1x HDMI 1.4a & 1x Displayport
- SLI Ready (Upto 3-Way SLI Supported)
- HDCP Capable
- DirectX 11 Support
- OpenGL 4.0 Support
- PhysX Enabled
- CUDA Enabled
- 3D Vision Enabled
- NVIDIA Surround Enabled
- Lower power consumption (Maximum consumption 195 watts at stock speed)

This is not OC edition, its standard one. I read review where 3 of them went for 650W but on another review when stressed in FurMark three of them with OCed i7 3970X (or 3960X don't remember exactly) pulled 1093W from the wall and it was mentioned to do not leave this system on full load for whole day Well tomorrow I will find out do I need another PSU

 

[NRG!]

With realistic loads you should be alright

 

[k1ngm4c1u51]

With realistic loads you should be alright

I used this website to calculate how many Watts I need:

http://extreme.outervision.com/PSUEngine

All together 876W

Screens:





what do You think?

PS. With 100% CPU Utilization and with 100% peak load - ALL components are at 100% load I have 980W

 

[alienware]

I wouldn't worry too much. You'll be removing one of those 680s due to overheating long before your PSU gives in.

Unless you plan on water cooling them then you're going to have to stuff them in and they will overheat.

 

[Scoob]

Urgh! That tool... I used that to check my prior system a little while back and it showed an ~850w total system draw estimate. My real load, measured using a wall plug and including my Monitor, speakers, laptop dock (charging) and external water loop was around the 600w mark peak, with a little more when stressing with even higher GPU clocks. I really don't know where it got its numbers from at all, basically it was reading about 40% over what I actually saw.

Your current 1050w PSU should be ok, consider I have two overclocked 680's now plus an overclocked 2500k @ 4.6 (1.4v it's crap) - which is less power efficient than yours of course - on an AX 860i that's yet to break a sweat - I've not seen it report going near 50% load according to the monitoring software so far. I'd happily add another 680 without power worries, though that would mean new motherboard and at least a 3930k overclocked to do it justice. As it stands my 2500k @ 4.6 is soooo the bottleneck in Crysis 3.

Scoob.

 

[Scoob]

I wouldn't worry too much. You'll be removing one of those 680s due to overheating long before your PSU gives in.

Unless you plan on water cooling them then you're going to have to stuff them in and they will overheat.

Yes, I think allowing these cards to breath will be your biggest challenge. Saying that, when I was first testing my 680's on the stock air coolers, the hottest got to 80c during repeated Heaven 4.0 loops and they weren't that loud - ambient was 20-25c, they did heat the room some! I'd not even adjusted the default (rather lazy) fan profile, so I could readily have dropped the temps at the cost of some more noise.

If you manage your air-flow well you might be ok, though being biased as I am I'd say go water

Scoob.

 

[k1ngm4c1u51]

I need to use AIR for at least month or even two. Don't have more £££ for watercooling right now. I don't mind 680s fans on 80% or even 100% for gaming. I have good headphones In my case - Corsair Carbide 500R White I removed two bottom HD cages so now two front fans are not blocked at all I will add more pics tomorrow. Which card will be the hottest one? The one in the middle or top one?