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Tri-SLI GTX 470s Power Consumption?

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June 30, 2010 5:26:20 AM

I have 2 GTX470s running SLI perfectly but I want to add another one (they all are Superclocked editions) and I was wondering if my OCZ Z-Series 1000W 80+ GOLD Certified EDITION could handle it with my 4.0GHz i7-860? Im running all of this in a MSI Big Bang Trinergy.
June 30, 2010 5:53:03 AM

Should work. I calculated it using values that I guessed on, but I tried to be as pessimistic as possible, so that it was the worst case scenario. Anyways, your PSU should do fine. Worst case scenario is you encounter instability, and need a bigger PSU.
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a b ) Power supply
June 30, 2010 5:58:55 AM

You have plenty of power for that the OCZ Z-series is a great power supply.
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June 30, 2010 6:01:47 AM

saaiello said:
You have plenty of power for that the OCZ Z-series is a great power supply.


Are you sure? Im quite scared since the 3 GTX-470s would be the Superclocked editions and my Big Bang Trinergy with my i7-860 OC 4.0 GHz can draw almost 275W alone...the good things is that I only power those and 1 HDD, one Corsair H50 and a simple DVD-CD Drive
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June 30, 2010 6:05:01 AM

Well each card can draw a max of 250 watts but in the real world gaming aspect of it you will only be drawing about 200 watts at the most, 175 watt per card is a more realistic number.
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a b ) Power supply
June 30, 2010 12:49:06 PM

Don't worry. As Saaiello has said, you have room enough.
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a b ) Power supply
June 30, 2010 6:32:07 PM

275w (max power draw for OCed CPU) + 225w x3 (max power draw for 3 GPUS) + 50w other components = 1000w is the theoretical max power draw from my estimates


In reality, power draw from 3x GTX470s peaks at 800watts, so your 1000watt PSU should be fine.

http://www.guru3d.com/article/geforce-gtx-470-2-3-way-s...
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June 30, 2010 6:35:41 PM

Bluescreendeath said:
275w (max power draw for OCed CPU) + 225w x3 (max power draw for 3 GPUS) + 50w other components = 1000w is the theoretical max power draw from my estimates


In reality, power draw from 3x GTX470s peaks at 800watts, so your 1000watt PSU should be fine.

http://www.guru3d.com/article/geforce-gtx-470-2-3-way-s...


Even if they are Superclocked editions with my i7-860 at 4.0GHz... isnt it going to stress 100% my PSU? inst that kinda wrong or not recommended?
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