Will this psu work for 2way x fire r9 290

Arcanekitten · Oct 25, 2015

Hi!
So my mind just got blown by I just figured out that I got a 750 watt psu for a single r9 290 thinking that was minimum....

So I was thinking now I maybe don't have to get a new psu (Cm V1000 ) for 2 way crossfire

So would a cooler Master G750M be enough to run two way r9 290? I currently run one r9 290 fine (as you can imagine ) and it has two pcei cable with each one 8 pin and one 6+2pin connector though I don't really know the internal story (voltages and amps and stuff)

So would this psu be enough?

Thanks!

Psu :http://www.coolermas...m-series/g750m/

Zerk2012 · Oct 25, 2015

You should always list all the parts in your PC with questions like this!
In general R9 290 is a 250 Watt GPU so that's 500 potential watts running 2 cards.
Average Intel processor with motherboard and drives 160 more watts.
125 Watt AMD processor with drives and motherboard 200 Watts.
To sum tis up maybe but not something I would recommend.

Arcanekitten · Oct 25, 2015

Here you go

PCPartPicker part list: http://pcpartpicker.com/p/P4Ybgs
Price breakdown by merchant: http://pcpartpicker.com/p/P4Ybgs/by_merchant/

CPU: AMD FX-8350 4.0GHz 8-Core Processor ($169.89 @ OutletPC)
CPU Cooler: Cooler Master Nepton 280L 122.5 CFM Liquid CPU Cooler ($99.99 @ Newegg)
Motherboard: ASRock 970 Extreme3 R2.0 ATX AM3+ Motherboard ($94.99 @ SuperBiiz)
Memory: Corsair 4GB (2 x 2GB) DDR3-1333 Memory ($28.99 @ Amazon)
Memory: Kingston Value 4GB (1 x 4GB) DDR3-1333 Memory ($70.99 @ Amazon)
Storage: Samsung 840 Pro Series 128GB 2.5" Solid State Drive ($103.99 @ Micro Center)
Storage: Western Digital 3TB 3.5" 5900RPM Internal Hard Drive ($92.47 @ B&H)
Storage: Western Digital Caviar Blue 500GB 3.5" 7200RPM Internal Hard Drive ($59.98 @ OutletPC)
Video Card: MSI Radeon R9 290 4GB TWIN FROZR Video Card
Case: Fractal Design Define R5 w/Window (Black) ATX Mid Tower Case ($98.99 @ NCIX US)
Power Supply: Cooler Master 750W 80+ Bronze Certified Semi-Modular ATX Power Supply ($75.99 @ NCIX US)
Operating System: Microsoft Windows 7 Home Premium SP1 OEM (64-bit) ($99.89 @ OutletPC)
Keyboard: Razer DeathStalker Wired Gaming Keyboard ($64.99 @ Amazon)
Mouse: Mad Catz R.A.T. 7 Wired Laser Mouse ($83.70 @ Amazon)
Total: $1144.85
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-10-25 20:34 EDT-0400

Zerk2012 · Oct 25, 2015

Arcanekitten :

Here you go

PCPartPicker part list: http://pcpartpicker.com/p/P4Ybgs
Price breakdown by merchant: http://pcpartpicker.com/p/P4Ybgs/by_merchant/

CPU: AMD FX-8350 4.0GHz 8-Core Processor ($169.89 @ OutletPC)
CPU Cooler: Cooler Master Nepton 280L 122.5 CFM Liquid CPU Cooler ($99.99 @ Newegg)
Motherboard: ASRock 970 Extreme3 R2.0 ATX AM3+ Motherboard ($94.99 @ SuperBiiz)
Memory: Corsair 4GB (2 x 2GB) DDR3-1333 Memory ($28.99 @ Amazon)
Memory: Kingston Value 4GB (1 x 4GB) DDR3-1333 Memory ($70.99 @ Amazon)
Storage: Samsung 840 Pro Series 128GB 2.5" Solid State Drive ($103.99 @ Micro Center)
Storage: Western Digital 3TB 3.5" 5900RPM Internal Hard Drive ($92.47 @ B&H)
Storage: Western Digital Caviar Blue 500GB 3.5" 7200RPM Internal Hard Drive ($59.98 @ OutletPC)
Video Card: MSI Radeon R9 290 4GB TWIN FROZR Video Card
Case: Fractal Design Define R5 w/Window (Black) ATX Mid Tower Case ($98.99 @ NCIX US)
Power Supply: Cooler Master 750W 80+ Bronze Certified Semi-Modular ATX Power Supply ($75.99 @ NCIX US)
Operating System: Microsoft Windows 7 Home Premium SP1 OEM (64-bit) ($99.89 @ OutletPC)
Keyboard: Razer DeathStalker Wired Gaming Keyboard ($64.99 @ Amazon)
Mouse: Mad Catz R.A.T. 7 Wired Laser Mouse ($83.70 @ Amazon)
Total: $1144.85
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-10-25 20:34 EDT-0400

To sum that up look now at what it says the Watts required would be.
http://pcpartpicker.com/p/Gtb2dC
763
ALSO with that motherboard Xfire would be a major gimp as the 2nd card would be running at X4 speed.

Arcanekitten · Oct 25, 2015

So you want to say that it is just not enough?
Or would it work and peaks would get rekt by a bold?

Zerk2012 · Oct 25, 2015

I edited my post after looking at the motherboard.
ALSO with that motherboard Xfire would be a major gimp as the 2nd card would be running at X4 speed.
With that motherboard your best option is a single card and NO I would not run that with the parts you already have.

Arcanekitten · Oct 25, 2015

Quick note to previous post I also posted it on a other forum and they said it was fine but also at the same time they are saying 225waTt for each 290

Arcanekitten · Oct 25, 2015

Alright but a 4x pie slot doesn't bottleneck a modern gpu right?
And there would be a fps reduction but t
It won't be that big right?

Zerk2012 · Oct 25, 2015

Your best option would be sell your card and buy the single best card you can afford.

Arcanekitten · Oct 25, 2015

well that isn't happening lol u can get approx 230 euro for that card that's a 280 x here so I won't sell it.
Thanks for the input though

Edit1

Lol missed your point I've got 200 euro + 230 =430 which is a awkward spot for gpus

Zerk2012 · Oct 25, 2015

I cant help what uninformed people tell you the reviews say from 250 to 300 watts
And yes X4 will gimp the performance.
I dought all these reviews are missing the Watts to the high side.
http://www.techpowerup.com/gpudb/2397/radeon-r9-290.html
http://www.hwcompare.com/18034/geforce-gtx-970-vs-radeon-r9-290/
http://pcpartpicker.com/part/xfx-video-card-r9290aedbd
http://www.maximumpc.com/amd-radeon-r9-290-benchmarks/
http://www.futuremark.com/hardware/gpu/AMD+Radeon+R9+290/review
http://gpuboss.com/gpus/Radeon-R9-290-vs-GeForce-GTX-980
Under normal gaming you could be OK but sorry I can not recommend pushing the limits of a PSU!
This does not state it but a lot of X4 slots will run at X1 with the X16 slot populated
http://www.asrock.com/mb/AMD/970%20Extreme3/?cat=Specifications

Arcanekitten · Oct 26, 2015

Thanks for the info

Arcanekitten · Oct 26, 2015

One quick thing wouldn't crossfire work if one of the slots ran at 1x since the lowest is x fire supports is 4x?

But that doesn't matter really since the psu yeah...

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