Power Supply - How many watts do i need
- Thread starter pawan112
- Start date
ModernWarfare
Splendid
- Jan 26, 2014
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Hd 7850
System in IDLE = 160W
System Wattage with GPU in FULL LOAD = 256W
Intel 4770
System in IDLE = 39W
System Wattage with CPU in FULL LOAD = 135W
TOTAL:391W/32A
around 500-550 watt should do it
System in IDLE = 160W
System Wattage with GPU in FULL LOAD = 256W
Intel 4770
System in IDLE = 39W
System Wattage with CPU in FULL LOAD = 135W
TOTAL:391W/32A
around 500-550 watt should do it
- Apr 29, 2006
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Modern, why are you counting the system wattage twice? My 7950 which uses a lot more power then the 7850 in a normal system draws between 300-325W. I don't see how you can get 391W.
The 7850 is a 130W card/part. 4770 is 84W? Lets say 100W. That's 230W for the two biggest draws of 12V power. No way that system at stock setting draws more then 300W, which agrees with what TechCIDLC said above. As he also said you only need more if you are planning on OCing or running CF later on. I'm running my 7950 on a Rosewill Capstone 450W. Its cheap and would have zero issues running a single 7850. You might want to buy the 500W if you'll be doing CF.
The 7850 is a 130W card/part. 4770 is 84W? Lets say 100W. That's 230W for the two biggest draws of 12V power. No way that system at stock setting draws more then 300W, which agrees with what TechCIDLC said above. As he also said you only need more if you are planning on OCing or running CF later on. I'm running my 7950 on a Rosewill Capstone 450W. Its cheap and would have zero issues running a single 7850. You might want to buy the 500W if you'll be doing CF.
But here is the problem,
I had a computer with a old i5 card and 4gb ram and hd7850
but a week ago i bought a new computer with i7 4770
8GB RAM and a gtx650
i want to remove the gtx650 from the new computer and place my old hd7850
But when i do that and i connect the 6 pin to the hd7850 and when i starting up it gives 1 long and 2 short beeps
I connect it with a power supply of 500Watts how is this possible
the hd7850 card works very well on my old computer i test it a hour ago
I had a computer with a old i5 card and 4gb ram and hd7850
but a week ago i bought a new computer with i7 4770
8GB RAM and a gtx650
i want to remove the gtx650 from the new computer and place my old hd7850
But when i do that and i connect the 6 pin to the hd7850 and when i starting up it gives 1 long and 2 short beeps
I connect it with a power supply of 500Watts how is this possible
the hd7850 card works very well on my old computer i test it a hour ago
ModernWarfare
Splendid
- Jan 26, 2014
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ModernWarfare
Splendid
- Jan 26, 2014
- 3,114
- 0
- 23,560
great psu. as some psu's are not haswell certified.
http://www.amazon.co.uk/XFX-PRO750W-Edition-Bronze-Certified/dp/B0045L4BJ6/ref=sr_1_2?ie=UTF8&qid=1397225622&sr=8-2&keywords=xfx+650
http://www.amazon.co.uk/XFX-PRO750W-Edition-Bronze-Certified/dp/B0045L4BJ6/ref=sr_1_2?ie=UTF8&qid=1397225622&sr=8-2&keywords=xfx+650
TechCIDLC
Honorable
- Dec 2, 2013
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Here's a very reliable PSU: EVGA's SuperNOVA 80+ Gold @ 750W (Fully Modular)
http://pcpartpicker.com/mr/amazon/evga-power-supply-120pg0750gr
http://pcpartpicker.com/mr/amazon/evga-power-supply-120pg0750gr
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