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290X Crossfire "real world" Power Consumption... 750 Watt PSU?

post #1 of 9
Thread Starter 
So today there was a listing error on amazon and I was able to snag two 290x's for $419 each. No, not 290s, 290Xs apparently. I will soon be getting a 144hz or WQHD panel, so I want the horsepower to play Crisis, Metro, BF4, etc. with all the bells and whistles at that kind of frame rate.

I have been trying to decide whether to crossfire them or resell the unopened second one for a profit. The thing is, I'm not even sure I CAN crossfire them. I have a 750W PSU, an i7 2600k (95 watts), 3 disks and 3 140mm fans.

I have seen vastly differing measurements of the 290x's power draw. Some places have said 250, others 275, and others well over 300. I'm obviously flirting with the edge of my PSU if they take over 300.

I have come here to ask if any of you have experiences running crossfire on a similar setup. I would really rather not have to buy a new PSU if I can help it.
Edited by HollywoodGKS - 11/10/13 at 5:26pm
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post #2 of 9
I cant see it above 300 watts

All i have seen says 250 watts

While your PSU might be 4 years old quality wise its still very good even today

Have seen tons of newer one that are a lot worse then yours
Edited by shilka - 11/10/13 at 5:27pm
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post #3 of 9
Thread Starter 
I will not be overclocking anything by the way. I should have mentioned that earlier.
Quote:
Originally Posted by shilka View Post

I cant see it above 300 watts

All i have seen says 250 watts

While your PSU might be 4 years old quality wise its still very good even today

Have seen tons of newer one that are a lot worse then yours

Okay, so we are talking 500W then, 600 or so after my processor. 150W is plenty to run the rest of my system (3 disks and fans, peripherals)? I know disks can take around 12-20W max, I'm not sure about motherboards or peripherals.
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post #4 of 9
I'm assuming they fixed the listing error?
post #5 of 9
Quote:
Originally Posted by HollywoodGKS View Post

I will not be overclocking anything by the way. I should have mentioned that earlier.
Okay, so we are talking 500W then, 600 or so after my processor. 150W is plenty to run the rest of my system (3 disks and fans, peripherals)? I know disks can take around 12-20W max, I'm not sure about motherboards or peripherals.

Really i dont think you need a new PSU

And as said your 4 year old model still smokes a lot of newer ones

Only reason i can think of is maybe better efficiency but thats the only reason i can think of
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post #6 of 9
Thread Starter 
Quote:
Originally Posted by aymanibousi View Post

I'm assuming they fixed the listing error?

Yeah, it was MSI at about 2PM EST, and they were out of stock within less than an hour.
D Frame
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901
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InWin D frame Razer Naga Hex (Wraith Red) Steelseries Mass AudioEngine A5+ Bamboo 
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A10 7850K @ 4.4GHz Gigabyte FM2+ A88X 16GB Corsair Vengeance 2133 13.5TB total (Fully Redundant) 
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120GB Kingston SSDNow 2x Western Digital Caviar Black 1TB RAID0 Western Digital Green 1TB Corsair H60 Push-Pull 
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A10 7850K @ 4.4GHz Gigabyte FM2+ A88X 16GB Corsair Vengeance 2133 13.5TB total (Fully Redundant) 
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post #7 of 9
you're fine to crossfire them.
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post #8 of 9
Quote:
Originally Posted by HollywoodGKS View Post

Yeah, it was MSI at about 2PM EST, and they were out of stock within less than an hour.

bugger. Cheers for the heads up. LOL someone's getting fired at Msi.
post #9 of 9
Thread Starter 
Alright everybody, thanks. It looks like I am going to be running crossfire 290x's then! Even if I don't really need the ridiculous power, it's just part of the hobby. thumb.gif

With my red case exhausting crossfire 290x's straight up, maybe "Mount Vesuvius" would be a better name for my computer. biggrin.gif

I'm hoping that future drivers will increase scaling a little bit. It seemed kind of underwhelming in a lot of games, especially below 1440p.
D Frame
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901
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CPUMotherboardGraphicsRAM
i7 5820K (4.4GHz - 24/7) MSI X99A SLI Plus PNY GTX 1080 FE 16GB Crucial Ballistix DDR4 2400 
Hard DriveHard DriveHard DriveCooling
120GB Kingston SSDNow 2x Western Digital Caviar Black 1TB RAID0 Western Digital Green 1TB Corsair H60 Push-Pull 
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Windows 10 Pro, Kali, CentOS7 Asus PB278Q  Razer Blackwidow Tournament Chroma (Greens) Antec Truepower 750W 
CaseMouseMouse PadAudio
InWin D frame Razer Naga Hex (Wraith Red) Steelseries Mass AudioEngine A5+ Bamboo 
CPUMotherboardRAMHard Drive
A10 7850K @ 4.4GHz Gigabyte FM2+ A88X 16GB Corsair Vengeance 2133 13.5TB total (Fully Redundant) 
Hard DriveCoolingOSMonitor
Mushkin Chronos Enhanced 120GB Noctua NH-L12 Windows 10 Pro Sony 55" 4K TV 
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CM SIlent Pro 650W InWin 901 Home Theater 
  hide details  
Reply
D Frame
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901
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CPUMotherboardGraphicsRAM
i7 5820K (4.4GHz - 24/7) MSI X99A SLI Plus PNY GTX 1080 FE 16GB Crucial Ballistix DDR4 2400 
Hard DriveHard DriveHard DriveCooling
120GB Kingston SSDNow 2x Western Digital Caviar Black 1TB RAID0 Western Digital Green 1TB Corsair H60 Push-Pull 
OSMonitorKeyboardPower
Windows 10 Pro, Kali, CentOS7 Asus PB278Q  Razer Blackwidow Tournament Chroma (Greens) Antec Truepower 750W 
CaseMouseMouse PadAudio
InWin D frame Razer Naga Hex (Wraith Red) Steelseries Mass AudioEngine A5+ Bamboo 
CPUMotherboardRAMHard Drive
A10 7850K @ 4.4GHz Gigabyte FM2+ A88X 16GB Corsair Vengeance 2133 13.5TB total (Fully Redundant) 
Hard DriveCoolingOSMonitor
Mushkin Chronos Enhanced 120GB Noctua NH-L12 Windows 10 Pro Sony 55" 4K TV 
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CM SIlent Pro 650W InWin 901 Home Theater 
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