Sapphire 290 TRI-X- Crossfire PSU Wattage?

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El Pelican

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Jan 13, 2014
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10,530
Hi there,

After getting informed in my last post, that a triple crossfire (2*7970+280x) would be just not fissionable due to my current psu (Corsair AX 860I), I would like to know if can run:

2* Sapphire r9 290 TRI-X in crossfire by having the 860i?

http://www.pccasegear.com/index.php?main_page=product_info&products_id=26373

Just to give you a more detail of my system:

CPU: 3770K OC to 4.2
HDD's: 4 mechanical and 2 SSD's
Corsair lighting and some fans for cooling, H100i

I have seen many benchmarks that 2 Sapphire 290 (not TRI-X) would chew 700w on load while using 3dmark, adding my cpu, hdd's and cooling, it might get around 800w+, which is just under 860w, however i'd like to to do a small OC to the crossfire gpu, probably something like 1110/6400(1600), no over voltage to the cards.

I do hope that 860W might be just enough!

Thanks a lot.
 
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R
That is an absolute top of the line PSU, Corsairs are good, but their AX line is fantastic. If I would trust anything to run near max ratings long term, it'd be that PSU. In fact, it'd probably provide over it's rating for years... not that anyone would recommend it.
Anandtech OC'd that VC: http://www.anandtech.com/show/7601/sapphire-radeon-r9-290-review-our-first-custom-cooled-290/5 - they managed to get their whole system pulling 500W at the wall under Furmark, which is about 450W pulled from the system. Normal gaming was only 418W with an OC'd TriX (just one). They're running a more power hungry 6 Core CPU too, with a slight OC.
If you had a lesser PSU I'd say you'd be cutting it too fine, but I'd be happy with that myself.
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rhysiam

Splendid
Mar 24, 2013
4,366
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That is an absolute top of the line PSU, Corsairs are good, but their AX line is fantastic. If I would trust anything to run near max ratings long term, it'd be that PSU. In fact, it'd probably provide over it's rating for years... not that anyone would recommend it.
Anandtech OC'd that VC: http://www.anandtech.com/show/7601/sapphire-radeon-r9-290-review-our-first-custom-cooled-290/5 - they managed to get their whole system pulling 500W at the wall under Furmark, which is about 450W pulled from the system. Normal gaming was only 418W with an OC'd TriX (just one). They're running a more power hungry 6 Core CPU too, with a slight OC.
If you had a lesser PSU I'd say you'd be cutting it too fine, but I'd be happy with that myself.
 
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El Pelican

Honorable
Jan 13, 2014
44
0
10,530


Thanks for that, the ax 860i it's a really good psu, it has never failed, unfortunately if i run triple crossfire on this psu, might not have enough power, however 2*r9 290 hopefully will do just fine.

The highest wattage i have seen was 700w+ while using funmark, considering i was testing 2*7970 at 1440p, all maxed out, and yet the psu kept going well.
 
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