GTX Titan Black SLI power use?

[ALXAndy]

Hi guys. I just bought one of those new Alienwares. It has a 850w PSU in it. That's enough for a 5820k and SLI Titan Black, right?

For reference I used to run a 4ghz I7 950 and two GTX 295 co op from the same PSU and it was fine. The only other things I am fitting are a Asus RAIDR and 600GB Velociraptor to go with the 2gb Toshiba that comes in it.

I'm not sure if I could fit my Revolution in there...

 

[spot35]

Your Recommended Minimum Power Supply is 1150 Watts

From here - http://support.asus.com/powersupply.aspx?SLanguage=en

Although they're generally a little on the high side... and only have titans in the list, not blacks.

 

[Jumper118]

i think it should be ok as long as you don't oc anything too much. it will be at 85%+ load when the system is under full load.

 

[joeyjojo]

guru3d recommend 900 W for two in SLI (no overclocks). They tend to be the most realistic IMO.

http://www.guru3d.com/articles-pages/nvidia-geforce-gtx-titan-black-review,6.html

You could buy a power meter and see, as long as your PSU provides the efficiency curve. My guess is you'd see max 80-90% of capacity, which is a bit high really.

 

[whyscotty]

I'd be happier with a decent 1000w, but you should be ok

 

[Disco_P]

For the brief time I ran Titan SLI I had no issues with an RM850. That was with a 2550k plus no overclock.

 

[ALXAndy]

I'd be happier with a decent 1000w, but you should be ok

Me too but the only other option was 1500w and Dell want £180 for it.

Hmm actually.. A mate of mine runs an Alienware Aurora with a 875w PSU and he's been running an overclocked 3820k and two GTX 480s and he's had no issues.

I looked at power use for the TB and it said around 468w full system draw peak and 106w idle. Surely 400w is enough to cover the other one?

I don't really overclock tbh dude. Well I do with my 3970x but then that's on a 1250w Revolution so no worries there, plus the overclock was the easiest thing I've ever done and took about ten seconds.

I need me a power meter I think. Time to go find one.

Edit. Hmm. I also ran a 4.7ghz 8320 with a 7990 ghz on a 750w RM. I think I will be fine

 

[Mayh3M]

I run two 980 Tis on a EVGA 850W G2 no problem. They have around the same TDP as the Titan Blacks I believe.

 

[Jeps]

I'm running an overclocked 4770K and 2x 780Tis on an 850w PSU without any issues.

Titan blacks are just 780Tis with more vram right? No idea how much more power a 5820 uses over a 4770 though.