SLI Hydro 980, should I upgrade PSU?

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20 Sep 2011
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3
Good evening people!

I am partially upgrading my system after 4 years, and have pre-ordered 2 EVGA hydro cards along side my first WC loop. I am unsure whether to upgrade my PSU.

I have already used a PSU calculator to see if I will require a new PSU. The results came back at 750-800W recommended.

My current PSU is a corsair 850W (I believe its a HX but I am not currently at home to check nor will I be for the next 2 weeks). The PSU is 4 years old and has had moderate to high usage. I know a PSU will degrade somewhat over time but my current system doesn't max out my PSU.

Current build:
2600k @4200
2 sticks of 4GB ram
Asrock Fatal1ty P67
Gigabyte GTX580 SOC
1 SSD
3 HDD

So as you can see my PSU for that system is well within it limits.

My new build I keeping my Mobo, and keeping the CPU.

The new system will be as follows:

2600k @4200
Asrock Fatal1ty P67
XSPC Raystorm res/pump combo kit (2 x D5 pumps)
2 x GTX980 Hydro
4 x 4GB Ram sticks (16GB total)
2 x Cold Cathodes
Fan controller
8 x SP120 fans (3 LED, rest normal)
3+ Radiators (4 in total inc Raystorm kit)
D2x Sound card
SSD
2 x HHD

As mentioned above, the PSU calculator (Extreme) recommends 750-800W, but this doesn't take into account that the Hydro cards have a higher clock than a standard GTX980 (there's no option to OC your GPU on the PSU calculator like you can with the CPU).

I plan to upgrade my core components at a later date, if I could get away with keeping my corsair 850W PSU until then, then that would be ideal.

So to sum up, using the information provided, will I draw more power then my old 850W can provide?

Thank you for taking the time to read. Any comments, thoughts or views are welcome. :D
 
the new card are lower power then most ppl this, your psu will be fine
your 580 soc was a 288w card, 980 are around 175w
 
Will be grand, i used a 6 year old HX 850 with the spec in sig, cpu clocked to 4.7ghz on 1.300 vcore, gtx 780's oc'd too. Theese cards are a bit more power hungrier than the 980's. Total system draw at the wall when gaming was 630w ono.
 
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