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650W power supply enough for this setup?

Last response: in Components
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September 22, 2011 11:49:13 AM

Ok, I have the following setup:

2500k @ 4.6ghz
8gb Drr3 ram 4 sticks
P6p67 pro
X1950 pro
& GT 440
dvd drive
7 hdds
1 ssd
3 case fans

I used this calculator http://extreme.outervision.com/psucalculator.jsp and it says i need 700 watts.

I cant see why. I have an energy monitor and my pc uses 280 watts with 100% load.

would xfx 650s be enough?

thanks

Sharp910sh
a b ) Power supply
September 22, 2011 12:17:50 PM

yes it's more than enough, the X1950 doesn't draw much power
Also, if you need to upgrade it in the future, a high end GPU such as HD 6950 wil work with PSU just fine
online PSU calculators suck and sometimes give wrong info
September 22, 2011 12:20:01 PM

approximately 750w would be enough.
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September 22, 2011 1:47:14 PM

Yes that PSU is big enough. Is that GPU not a bit slow by now or don't you really do gaming?
a b ) Power supply
September 22, 2011 3:57:20 PM

As far as PSUs are concerned, be informed. Before you buy any PSU read accurate, objective PSU reviews at reputable sites such as www.jonnyguru.com or www.hardwaresecrets.com on the EXACT model PSU that you are interested in as some brands have good and poor quality PSUs.

You can also get an accurate rating of how much PSU power is required for your current or future system at the PSU calculator link below. Once you know the total PSU watts required then you need to confirm that the 12v rail has enough amps. to support your Vid card(s) and the rest of the PC system.

There are several websites that show the Vid card power consumption in watts. Divide the watts by 12 to determine the amps. required on the 12v rail(s). Add 15 amps for the rest of the PC on the 12v rail and you now know the Minimum total 12v rail amps required under full load. It's best to have at least 5-10 amps. reserve on the 12v rail available under full load so the PSU is not loaded to 100%.
It's also worth noting that people often misunderstand the 80% power rating. This is a rating of the PSU's energy efficiency not it's output. 80% plus PSUs use less grid power to produce the same PC power. If it's 80% Bronze, Silver or Gold the cost savings on electricity is pretty small between Bronze, Silver and Gold unless you are paying very high rates for electricity so any 80% rated quality PSU is fine even if not Gold. For those who leave their PC on 24/7 a quality 80% PSU is a good investment.


http://extreme.outervision.com/psucalculatorlite.jsp

http://www.guru3d.com/article/geforce-gtx-560-ti-sli-re...

http://www.techpowerup.com/reviews/NVIDIA/GeForce_GTX_5...
a b ) Power supply
September 22, 2011 4:33:35 PM

beenthere said:
As far as PSUs are concerned, be informed. Before you buy any PSU read accurate, objective PSU reviews at reputable sites such as www.jonnyguru.com or www.hardwaresecrets.com on the EXACT model PSU that you are interested in as some brands have good and poor quality PSUs.

You can also get an accurate rating of how much PSU power is required for your current or future system at the PSU calculator link below. Once you know the total PSU watts required then you need to confirm that the 12v rail has enough amps. to support your Vid card(s) and the rest of the PC system.

There are several websites that show the Vid card power consumption in watts. Divide the watts by 12 to determine the amps. required on the 12v rail(s). Add 15 amps for the rest of the PC on the 12v rail and you now know the Minimum total 12v rail amps required under full load. It's best to have at least 5-10 amps. reserve on the 12v rail available under full load so the PSU is not loaded to 100%.
It's also worth noting that people often misunderstand the 80% power rating. This is a rating of the PSU's energy efficiency not it's output. 80% plus PSUs use less grid power to produce the same PC power. If it's 80% Bronze, Silver or Gold the cost savings on electricity is pretty small between Bronze, Silver and Gold unless you are paying very high rates for electricity so any 80% rated quality PSU is fine even if not Gold. For those who leave their PC on 24/7 a quality 80% PSU is a good investment.


http://extreme.outervision.com/psucalculatorlite.jsp

http://www.guru3d.com/article/geforce-gtx-560-ti-sli-re...

http://www.techpowerup.com/reviews/NVIDIA/GeForce_GTX_5...

you could have made a tutorial or a discussion board for this instead of writing it in every thread you comment
September 22, 2011 5:46:48 PM

Rizlla said:
Yes that PSU is big enough. Is that GPU not a bit slow by now or don't you really do gaming?



No gaming just watching films. I need two gpu's to power three monitors. I put the x1950 pro in my system and it works fine. With my old Hiper type m 580q psu. seems like there is no need for a extra psu. prob better off replacing the old x1950 pro with a cheap gt 220. As i do no game at all.
September 22, 2011 7:24:48 PM

just buy 750w with good brand and don't look back
September 22, 2011 8:03:01 PM

pro-gamer said:
just buy 750w with good brand and don't look back


Even though my Hiper type m 580w has been going strong for more than 4 years?
a b ) Power supply
September 22, 2011 8:53:24 PM

pro-gamer said:
just buy 750w with good brand and don't look back

based on what you're giving your recommendations ?
the Gt 440 draws 56W maximum and the X1950 draws about 75W at maximum, which means he needs a PSU with a single 12V Rail with 15A to handle the GPUs and 12V Rail with 15A for the rest of his PC TOTAL OF 360W
HE HAS A 650W PSU, why are you recommending more ?
a b ) Power supply
September 22, 2011 8:55:04 PM

sharp910sh said:
Even though my Hiper type m 580w has been going strong for more than 4 years?

YOUR PSU IS SUPERB and you don't have to buy more wattage PSUs
September 27, 2011 6:02:52 PM

I bought a the xfx 650s. wow its much better. My PC is not restating. It uses 30% less power. Very pleased. I don't know why I didnt buy this ages ago.
!