is the FSP raider 550watts 80plus silver, psu good for AMD HD 7850??

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Allen Aquino

Allen Aquino

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Mar 28, 2014
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im planning to buy HD 7850 graphic card... but i dont know if my psu is good enough for 24/7 usage, FSP raider 550watts 80plus silver that I have just bought fairly cheap @$50 (bnew)

FSP RAIDER NEWEGG

what do you think guys will this psu good for longer usage?
 
Solution
D
You are fine.
CPU - 84 watts. Lets assume you are going to overclock and call it 125 watts.
Single hard drive - 7 watts at full spin up.
8 fans = 40 watts if the fans are on high.
DVD drive? Add 8 watts.
GPU - 115 watts.
Lets pretend RAM and everything else will actually use 50 watts.

Rounding up every number just in case gets you at 380 watts.
135+10+50+10+125+50 = 380w with all the headroom in the world.

The FSP Raider 550w supplies 42 amps and 502 watts just on the 12v rail alone. It is plenty of power for your computer.
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D

Deleted member 217926

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AMD has to assume you have a no name, piece of junk as a power supply that can't output it's rated wattage. So they generically recommend a 500w unit for the very low power 7850. In fact a quality, continuous output 400w unit is more than fine. As you can see here the HD 7850 can use a maximum of 115 watts or 9.6 amps.

http://www.techpowerup.com/reviews/AMD/HD_7850_HD_7870/24.html

Factor in 100 watts for a CPU and 50 watts for a couple of hard drives and fans and even a 350w power supply leaves you some overhead there.
 
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Allen Aquino

Allen Aquino

Reputable
Mar 28, 2014
24
0
4,510
i forgot heres my specs
intel i7 -4770k
2pcs ddr3 ram 1x4gb 1x8gb(12gb ram)
500gb sata
HSF cooler master hyper 212x
and running 8 fans 120mmm with led, and 1 led bitfenix led strip <<< i dont know exactly how many power this fans consume..
is my led fans are too many? or should i lessen my fans?
 
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D

Deleted member 217926

Guest
You are fine.
CPU - 84 watts. Lets assume you are going to overclock and call it 125 watts.
Single hard drive - 7 watts at full spin up.
8 fans = 40 watts if the fans are on high.
DVD drive? Add 8 watts.
GPU - 115 watts.
Lets pretend RAM and everything else will actually use 50 watts.

Rounding up every number just in case gets you at 380 watts.
135+10+50+10+125+50 = 380w with all the headroom in the world.

The FSP Raider 550w supplies 42 amps and 502 watts just on the 12v rail alone. It is plenty of power for your computer.
 
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