Just got an R9 290 - Now I need to power it!

diddle283 · Jan 1, 2014

Hiya,

I have just bought a Sapphire R9 290 and the box tells me it requires a 750w psu. I currently have a decent 550w which I thought would be sufficient, but I guess not!

Which should I get? I don't really want to spend much more than £70 and was thinking of just getting this http://www.amazon.co.uk/Corsair-Builder-Series-Modular-Certified/dp/B00ALK3QRS/ref=sr_1_3?ie=UTF8&qid=1388600050&sr=8-3&keywords=750w+power+supply

Sevenater · Jan 1, 2014

If you don't want to go over 70, I would stick with the one you linked, it's modular and it is corsair so it's pretty reliable. Hope this helps!

aevm · Jan 1, 2014

Here's one for £69.30:
http://www.scan.co.uk/products/750w-corsair-builder-series-cx-85-eff-80-plus-bronze-sli-crossfire-eps-12v-quiet-fan-atx-v231-psu

aevm · Jan 1, 2014

Oops, the one I linked won't be available for another 3 weeks. Here's the same model you found, but a bit cheaper:
http://www.scan.co.uk/products/750w-corsair-cxm-builder-series-hybrid-modular-85-eff-80-plus-bronze-sli-crossfire-eps-12v-fan-atx

aevm · Jan 1, 2014

Or this one for 70 pounds:
http://www.scan.co.uk/products/750w-nzxt-hale-82n-80plus-bronze-psu

It's ranked higher than the Corsair CX series too.
http://www.eggxpert.com/forums/thread/323050.aspx

diddle283 · Jan 1, 2014

how is the Fractal Designs Integra 750w?

http://www.amazon.co.uk/gp/product/B00931YW60/ref=s9_simh_gw_p147_d0_i4?pf_rd_m=A3P5ROKL5A1OLE&pf_rd_s=center-2&pf_rd_r=0DH42QDT3F3D5NBQQSJS&pf_rd_t=101&pf_rd_p=455344027&pf_rd_i=468294

Sevenater · Jan 1, 2014

That would do it.

aevm · Jan 1, 2014

diddle283 :

It's a tier 3 PSU. I'd use that without hesitation in a low budget build. With the NZXT or Corsair you pay more but get better quality.

diddle283 · Jan 1, 2014

Will these 750w Psu's we are talking about here be ok for a pair of R9 290s in the future?

Sevenater · Jan 1, 2014

No, you will need 850w+ to be able to xfire 290's if you see yourself doing so I would go ahead and get a 850w power supply.

diddle283 · Jan 1, 2014

God damn it!! Suggest me an 850w that would do the job but not break the bank?

Sevenater · Jan 1, 2014

These might be considered "Breaking the Bank" however they are really good quality-http://www.newegg.com/Product/Product.aspx?Item=N82E16817139041 - http://www.newegg.com/Product/Product.aspx?Item=N82E16817151102

diddle283 · Jan 1, 2014

to much!!

this any good?

XFX P1-850S-NLB9 PRO850W Core Edition Power Supply http://www.amazon.co.uk/XFX-P1-850S-NLB9-PRO850W-Edition-Supply/dp/B0045L4BNW/ref=sr_1_fkmr0_2?ie=UTF8&qid=1388606134&sr=8-2-fkmr0&keywords=seasonic+850

Sevenater · Jan 1, 2014

diddle283 :

Actually yes, it's a pretty nice Power supply. Be sure to select a "Best Solution" to help those who have similar questions/problems.

aevm · Jan 1, 2014

We're supposed to look at 1000W PSUs for 290 CF

http://www.realhardtechx.com/index_archivos/Page362.htm

That's around £140 or £150
http://www.scan.co.uk/products/1000w-silverstone-strider-plus-full-modular-80-plus-silver-88-eff-eps-12v-1-x135mm-fan-atx-v23-psu
http://www.scan.co.uk/products/1000w-evga-supernova-1000-g2-full-modular-80plus-gold-90plus-eff-continous-power-psu
http://www.scan.co.uk/products/1000w-corsair-rm-series-cp-9020062-uk-full-modular-80-plus-gold-92-eff-eps-12v-1x135mm-fan-atx-v24

BTW, diddle283, be careful if you want to buy PC parts from amazon. Amazon itself is very reliable and has all my respect, but the Fractal Design PSU you linked earlier is not actually sold by Amazon. It's sold by "IvoryEgg Limited".

diddle283 · Jan 1, 2014

I've just been reading up and apparently my 550w psu is supposed to be ok for a single 290. What will happen if I were to try it and it wasn't up to the task? will stuff blow up or will it just shut down?

diddle283 · Jan 1, 2014

I've just been reading up and apparently my 550w psu is supposed to be ok for a single 290. What will happen if I were to try it and it wasn't up to the task? will stuff blow up or will it just shut down?

Sevenater · Jan 1, 2014

It will just shut off. I would go AT LEAST 650w for 1 290.

aevm · Jan 1, 2014

There's a lot of conflicting info about the R9 290 power requirements. This review
http://www.guru3d.com/articles_pages/radeon_r9_290_crossfire_review_benchmarks,4.html
says 800W would be enough for R9 290 Crossfire and 550W would be enough for a PC with one R9 290. That "750W" you got on the box is exaggerated.

What kind of 550W PSU do you have now?

diddle283 · Jan 1, 2014

The 750w Corsair Modular has just come back down in price again! bought!

thanks for your help guys!!

diddle283 · Jan 1, 2014

aevm :

It's an OCZ 550w Fatal1ty. 50a across the 2 12v rails

Sevenater · Jan 1, 2014

diddle283 :

Lol no problem man, glad I could help. Try to select a best solution to help people with similar problems/questions.

sora · Jan 2, 2014

aevm :

This, you can't go wrong with NZXT products!

Just got an R9 290 - Now I need to power it!

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