what wattage of psu would it take to run 4 of these 49 290x? or would it take 2 psu's connected with something like add2psu? thanks!
388666
If you want to run 4 of these and the rest of the system off one PSU, you need a 1500-1600 watt PSU. I run 4 Sapphire R9-290's, and at peak usage I draw over 1500 watts from my 1600-watt PSU.
24249
I needs 230 watts per card. 2 of them sum up to 460 watts witch will leave a very small room for CPU RAM Motherboard and HDD. You need a PSU thats at least 1000 watts to run 2 of them I'll recommend 1200 watt so you leave room and that way your PSU runs cold. You don't want all the heat a PSU generates when near 80% of usage. Even more when shopping for a new PSU make sure that a big part of the power is in the 12v rail. In electronic Power = Voltage * Current . in this case voltage is 12 current is what your PSU says on the box (you can check this while shopping) so. Power for 12 V = 12V * 56 = 672 watts for 12 V. This is an example Going back to you PSU u have 4 rails of 12v. @ 20Amp each. If you use 2 for each card ull get Card 1: 12v@40A = 480watts card uses 460 - 95% ( danger) Card 2: 13v@40A = 480watts card uses 460 - 95% ( danger) They are too close to the limit 95% and you have no room for CPU and Motherboard. They take about 150w more. And you only (at best) only have 40. Hope this helps for more info google search PSU watts explanations or ask me again.
619309
you should have min 350 watts ps, the total power draw is 65watts. anything less your taking a chance with you system crashing or worse also PCI-E power connector is is used for more info go to http://www.evga.com/support/manuals/files/EVGA_Manual_EN.pdf this the manual and may give a better ideal
1666832
Hey Josh, I can't comment on the 1000 of each PSU. My decision is this. My choice was between the Corsair 1200i and the EVGA 1200 P2. I choose the EVGA for a couple of reasons. First off, the 10 year warranty, and almost a hundred dollar difference. Both of these are very good psu's. You can't do wrong with either. However I personally don't care for the (i) interface. To me however, 1200 watts is not an overkill. Simply because my rig is build for the long future (4k). And knowing that my psu has a 10 year warranty. No brainer. Like I said, you can't go wrong with either. However look at the warranty, future, and price. GAME ON, my friend
1881916
Maximum draw for this card I have seen reported by Afterburner is slightly over 300W and that was in FurMark, a rather pathological workload. A reported 260W seems to be about the most it pulls while actually gaming. Depending on your CPU, you would probably be fine with reusing a decent quality 500W PSU if you have one. If buying new I'd suggest going up a few 100W as the price difference is negligible.
1398011
Late answer, so I hope that you haven't had any problems. At full load, this card can consume up to 350W. I wouldn't go less than 750 for a PSU. If you plan on an OC, I'd go even higher. That being said, my CPU, GPU, and RAM are all OC'd. I've also got four HDD and one SSD, five case fans, and a 1050W Corsair. If you're considering spending this kind of money, I'd feel better knowing that the PSU voltage isn't going off course due to an overload, or that the PSU killed itself without taking casualties (fingers crossed).
2272827
The card itself is rated by Nvidia to use about 155 watts. If your just running one you won't need to buy a real heavy power supply. the computer I built with this card calculated to use just under 400 watts overall (and I put a 4th gen i5, 8 gigs of ram, 2 hard drives, multiple fans, 2 DVD/blu ray roms, and a decent mobo) and I used a 500 watt psu. Just make sure your power supply has the proper connectors ( you will need an 8 pin and a 6 pin connector to power this card, careful not to confuse your 8 pin motherboard connector with your 8 pin video card connector.)
603130
I have a mining rig and a kill-a-watt. I also have 2 PSU's. I've seen the kill-a-watt read about 75w increase for each of these cards plugged into the 2nd PSU. However I've never tested the increase off the 1st PSU, power that it pulls from the Mother Board. I've only heard antidotally that they pull 50w from the MoBo.
1260738
I have a 750W PSU, mainly because I plan on getting another one of these. I bought it on TigerDirect because Amazon couldn't ship it. This GPU is rather awesome. As far as I know, with one of these, I use about ~350W of the 750W PSU.
1317258
It is recommended that you use a 400 watt power supply by AMD, but in reality all this is for is to save themselves from hearing about defective cards from users that may have cheap or low end power supplies. I have one of these running in my secondary rigs with a 300 watt power supply without any issues what so ever. Though 300 Watts is as low as I would go.
1067926
I have my whole system hooked up to a 750 watt PSU except for my second card, which is hooked up to my 500 watt PSU. So if you're putting both cards on the 750 watt PSU then you should be fine.
1867157
http://www.extreme.outervision.com/PSUEngineThis site will help you with specifics for your computer, but it looks like the R9 290X uses about 330~ watts on its own, so I would want at least 600~650, if you have 80 certified (It has to do with the efficency, most PSUs are that efficient at least, and 80 silver + is more common). If you have a lot of HDDs or things you might even consider going up as high as a 700 watt. I hope this helps! It's a sweet card!
592417
Hey Ronel,I have a 750 watt power supply that I am using with this card. However, a standard power supply one with no less than 350 watts should be enough to run the card with no problems. I would recommend getting a 400 to 450 watt power supply if you will be using this card for gaming.
592419
Hey Ronel, I have a 750 watt power supply that I am using with this card. However, a standard power supply one with no less than 350 watts should be enough to run the card with no problems. I would recommend getting a 400 to 450 watt power supply if you will be using this card for gaming.
1808913
Truth be told the manufacturer recommends a 400W power supply which seems like a very high wattage requirement? Since they cannot be sure of your system configuration they have to err towards caution to ensure that you have adequate power to drive the card! Here is one of the best calculators I have used to check power consumption resource needs . . .http://www.thermaltake.outervision.com/
1881915
750W or more.See the "System Requirements" of the below.http://www.sapphiretech.com/presentation/product/product_index.aspx?pid=2090&lid;=1#
48504
Thanks - is the current (amps) within usual range for 450 watt power supplies? Sometimes I find on these cards that you actually need another 100 watts in PS rating just to get up to the 12v rail amps they want - not enough amps means "DOA" = RMA although the card is actually fine.