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Tom's Hardware > Forum > Graphics & Displays > Graphics Cards > [Solved] Will my PSU be sufficient?

[Solved] Will my PSU be sufficient?

Forum Graphics & Displays : Graphics Cards [Solved] Will my PSU be sufficient?

Best answer from robjordy.

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redhotchilipackers   08-11-2011 at 08:01:39 PM

Here is my current setup:

Phenom II X4 B45 @ 3.4Ghz 2MB L2 Cache
Gigabyte GA-MA785GM-US2H
6GB DDR2 @ 440MHz
HD 4850 @ 675/1045MHz
Seagate Barracuda 7200RPM 500GB
External Hitatchi Easydrive 500GB &
Seagate 1TB
Rosewill RV2-600 600 Watt PSU
Antec TwoHundred(v2)

Looking at swapping the HD 4850 for a HD 4870x2. Question is, name brand aside, would my PSU be able to run my setup with the HD 4870x2? Thanks for your help!

Best answer from robjordy
It's possible but only with a real good PSU. Don'know about Rosewill. And 650-750 to be safe would be better indeed.
Measured power consumption two 6870 cards

System in IDLE = 184W
System Wattage with GPU in FULL Stress = 421W
Difference (GPU load) = 237W
Add average IDLE wattage x2 ~ 19W (ATI specified)
Subjective obtained GPU power consumption = ~ 275 Watts
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clarkjd   08-11-2011 at 08:20:21 PM

I wouldn't recommend it. with two cards I'd want a PSU with 650-750 watts(and a good brand!)

Reply to clarkjd
robjordy   08-11-2011 at 08:29:16 PM
Best answer

It's possible but only with a real good PSU. Don'know about Rosewill. And 650-750 to be safe would be better indeed.
Measured power consumption two 6870 cards

System in IDLE = 184W
System Wattage with GPU in FULL Stress = 421W
Difference (GPU load) = 237W
Add average IDLE wattage x2 ~ 19W (ATI specified)
Subjective obtained GPU power consumption = ~ 275 Watts

Reply to robjordy
redhotchilipackers   08-21-2011 at 04:12:13 AM

Best answer selected by redhotchilipackers.

------------------------------ Antec Two Hundred(v2) Case
ASRock Z68 PRO3 GEN3 MOBO
Intel Core i5-2500K (Up to 4.8GHz)
COOLER MASTER Hyper N 520 CPU Cooler
Reply to redhotchilipackers
Mousemonkey   08-21-2011 at 04:39:41 AM

This topic has been closed by Mousemonkey

------------------------------ http://img545.imageshack.us/img545/3995/bl11.gif
 Reply to Mousemonkey
Best answer from robjordy
It's possible but only with a real good PSU. Don'know about Rosewill. And 650-750 to be safe would be better indeed.
Measured power consumption two 6870 cards

System in IDLE = 184W
System Wattage with GPU in FULL Stress = 421W
Difference (GPU load) = 237W
Add average IDLE wattage x2 ~ 19W (ATI specified)
Subjective obtained GPU power consumption = ~ 275 Watts
Register or log in to remove.
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