Penti Posted November 30, 2011 Posted November 30, 2011 (edited) I currently have an existing build with an Enermax Revolution 85+ 850W PSU. I've been running it for over a year now, and I'm planning on upgrading my GPU since I can't find the one I have now for sale and I want to do a SLI set-up. I just don't know if my PSU will hold up. Here's my old set-up: CPU - Intel i5 760 CPU Cooler - Tuniq Tower 120 Extreme Mobo - MSI P55-GD65 RAM - G.Skill Ripjaws 2x2GB 1600 9-9-9-24 GPU - Palit GTX460 Sonic 1GB (with an old MSI 6200 for PhysX) HDD - Seagate Momentus XT 500GB Planning on swapping the Palit GTX460 Sonic with two (2) ASUS GTX560 Ti DCii in SLI, then adding another set of G.Skill Ripjaws 2x2GB. Also, the i5 760 I OC'd just a bit for the RAM to work with the Mobo.. Should my 850W hold up to this new set-up? Edited November 30, 2011 by Penti Share this post Link to post Share on other sites More sharing options...
Celcius Posted November 30, 2011 Posted November 30, 2011 850 watts should be plenty. Share this post Link to post Share on other sites More sharing options...
Penti Posted November 30, 2011 Posted November 30, 2011 850 watts should be plenty. Thanks for the reply, but after going through reviews, the one here in OCC (link: http://www.overclockersclub.com/reviews/nvidia_asus_gtx560ti/16.htm) stated that under load, it consumes 382 watts. I'm not sure if this is the total consumption under the 15 mins span that they tested, or peak consumption.. sorry, forgot if watt is per hour or not, that was still way back in highschool.. Share this post Link to post Share on other sites More sharing options...
El_Capitan Posted November 30, 2011 Posted November 30, 2011 I've tested two GTX 560Ti's, you'll be fine. I'll give you solid numbers tomorrow. Share this post Link to post Share on other sites More sharing options...
Waco Posted November 30, 2011 Posted November 30, 2011 Thanks for the reply, but after going through reviews, the one here in OCC (link: http://www.overclockersclub.com/reviews/nvidia_asus_gtx560ti/16.htm) stated that under load, it consumes 382 watts. That's 382 watts for the whole system before losses internal to the PSU. You'll be perfectly fine. Share this post Link to post Share on other sites More sharing options...
Penti Posted November 30, 2011 Posted November 30, 2011 I've tested two GTX 560Ti's, you'll be fine. I'll give you solid numbers tomorrow. Thanks! Looking forward to it, should now be able to safely buy those upgrades. Share this post Link to post Share on other sites More sharing options...
Penti Posted November 30, 2011 Posted November 30, 2011 That's 382 watts for the whole system before losses internal to the PSU. You'll be perfectly fine. Oh, just as I thought, so I should be good to buy those upgrades now! btw, if you don't mind, what do you mean by losses internal to the PSU? Is this where 85+, 90+, etc come in? Also, if this is the case, that an i7 with a GTX460 consuming just 382 under load, are there any set-ups out there that even make use of a 1000w (and up) PSU? Share this post Link to post Share on other sites More sharing options...
paulktreg Posted November 30, 2011 Posted November 30, 2011 Oh, just as I thought, so I should be good to buy those upgrades now! btw, if you don't mind, what do you mean by losses internal to the PSU? Is this where 85+, 90+, etc come in? Also, if this is the case, that an i7 with a GTX460 consuming just 382 under load, are there any set-ups out there that even make use of a 1000w (and up) PSU? The figure quoted is 382W from the wall so in the case of your Enermax whose efficiency will be at or around 86% for this load, it's only (382 x .86) 328W from the power supply. Share this post Link to post Share on other sites More sharing options...
Black64 Posted November 30, 2011 Posted November 30, 2011 Sounds good. Share this post Link to post Share on other sites More sharing options...
_TheAlexO Posted November 30, 2011 Posted November 30, 2011 6200 for physx? That won't work. 1 Share this post Link to post Share on other sites More sharing options...
Penti Posted December 3, 2011 Posted December 3, 2011 6200 for physx? That won't work. I'm not quite sure if it's working or not, since there's not much PhysX games that I play, but the NVidia software did recognize the card.. Plus, i got it free from my old rig that isn't working anymore, so no real problem if it's working or not, noticeable or not.. Share this post Link to post Share on other sites More sharing options...
sYstEmATiC Posted December 4, 2011 Posted December 4, 2011 Oh, just as I thought, so I should be good to buy those upgrades now! btw, if you don't mind, what do you mean by losses internal to the PSU? Is this where 85+, 90+, etc come in? Also, if this is the case, that an i7 with a GTX460 consuming just 382 under load, are there any set-ups out there that even make use of a 1000w (and up) PSU? There aren't many systems that will consume 1000wt's. A system with A i7 980x heavily OC'ed, dual GTX590's OC'ed with a custom 12v water cooling setup for both CPU and GPU's, a slew of Hard drives in a RAID config, lots of fans, and extra accessories are going to consume a lot of power. I have no idea how much that type of setup would actually draw, but I do know an 850wt psu probably wont cut it. It might only draw 850wts at full load, but you dont want to keep a PSU at full load for long, if ever. A good analogy is a car. If you keep your average car floored all the time, its not going to last long. But never give it more than 50-75% throttle except on occasion, it will last much much longer. Same concept with psu's. If a system draws around 500wt's at full load, a good 650wt psu would be ideal. As for your system, and an 850wt. For reference, I'm running an OC'ed 2500k, and 2x 6970's OC'ed with an 850wt psu and mine runs great. Share this post Link to post Share on other sites More sharing options...
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