Is this PSU good for cross fire

[driftking197]

just ordered my 2nd MSI Radeon R9 390 only have a corsair CX 600w power supply i know thats not enough as i have a overclocked Intel Core i5-6600K to 4.5 & 16GB ddr4 ram so i was thinking on this PSU for the upgrade can some one tell me if this will work for x2 MSI Radeon R9 390 graphics card??

[Corsair RM1000] http://www.ebuyer.com/631165-corsair-rm-1000w-fully-modular-80-gold-power-supply-cp-9020062-uk

 

[DSzymborski]

Well, that PSU are you referring to? You only mentioned what your old power supply is.

[Edit: There it is. Not my favorite, but it's adequate]

 

[Kurz]

Yea definitely will be enough.

 

[bignastyid]

The orginal rm1000 has stability issues and i would avoid it,the rmi and rmx are better units. Here are a couple better options for around the same price.
http://uk.pcpartpicker.com/part/evga-power-supply-220p21000xr
http://uk.pcpartpicker.com/part/corsair-power-supply-cp9020084na
http://uk.pcpartpicker.com/part/corsair-power-supply-cp9020094na

 

[rcald2000]

Technically it will work but there are two better choices for equivalent amount of money:

Corsair RM1000i RMi Series
£161.31 inc. vat
http://www.ebuyer.com/715155-corsair-rm1000i-rmi-series-1000-watt-fully-modular-power-supply-unit-80-cp-9020084-uk

Corsair RM1000x
£150.99 inc. vat
http://www.ebuyer.com/724685-corsair-rm1000x-high-performance-power-supply-cp-9020094-uk

Summary: The power supply you selected is tier 3, while the two that I've copy & pasted, are tier 1. Either of my two choices would be great, but I like the Corsair RM1000i slightly more because it has the Corsair Link interface. If you wish to know more about the difference between the RMi and RMx, here is review summary page: http://www.anandtech.com/show/9625/the-corsair-rmx-and-rmi-1000w-power-supply-review/5

*** Power supply quality list (tier list) ***
http://www.tomshardware.com/forum/id-2547993/psu-tier-list.html

Tier One
The highest quality and most stable Power Supply Units available. Protected by industrial grade protection circuitry and can output wattage at a rated maximum temperature of 50°C or below. These units are also Haswell certified, meaning they can cope with the C6 and C7 sleep states of 0.05Amps without triggering the under-current protection switch. May even go over labelled wattage and still work until it safely shuts down.

Tier Three
Some Haswell compatible, some not (maybe unconfirmed). Still safe to use and stable, just lower quality components. Not really ideal in serious overclocking or super-high load situations, such as a Bitcoin mining rig or a high end gaming system.