Will This PSU Handle My Specs?

S

Sky

Limp Gawd
Joined
Nov 26, 2006
Messages
434
Well that time has come again to upgrade my Game box...

These are the specs I'll now have:

Gigabyte GA-P35-DS3R
E6750 or E6850
Mushkin XP2-8500
Evga 8800GTX
Corsair HX520W
Sony DRU-810A DVD/RW
X-Fi XtremeMusic
WD Raptor 150GB
1 - 120MM Front Case Fan
2 - 80MM Rear Case Fans

Evga lists the 8800GTX for a 475W PSU, will the Corsair HX520W be enough to power the new P35, Intel C2D 1333, and 8800GTX CPU with this PSU?
 
Why so high on the dual cores? An E6420 or E6600 will OC to 3.2Ghz easily with a nice aftermarket cooler.

I'd get the 620watt Corsair if budget allows. Lower load, longer life of the system, but the 520watt should be enough.

Raptors are only a little faster than the Seagate 7200.10 perpendicular recording drives, and louder. You could get a lot more space for less cash. Worthwhile, I think.

Also might want to look in to a case with all 120mm fans -- also helps keep things quieter and cooler.
 
that psu could run 2 of those systems and still have enough power to bake you a cake
 
The RamGuy over at Corsair recommended I use the 620.

And someone else said under full load I wouldn't even be using 400W.

How can I know for sure? All I've ever known about are the online calculators but they don't seem very accurate.

THANKS
 
Ok this article shows the measuring of wattage for the ENTIRE system.

http://www.anandtech.com/video/showdoc.aspx?i=2873&p=1


The power consumption can be found on page 7, using the "Index" drop down window towards the bottom of the page.

In this you can see the Evga 8800GTX system was under load at ONLY 281W, again this is for everything. So I'm not sure how people came to the conclusion here that 520W isn't enough when it seems to be WAY more then enough.

The Setup used:

CPU: Intel Core 2 Extreme X6800 (2.93GHz/4MB)
Motherboard: EVGA nForce 680i SLI
Intel BadAxe
Chipset: NVIDIA nForce 680i SLI
Intel 975X
Chipset Drivers: Intel 7.2.2.1007 (Intel)
NVIDIA nForce 9.35
Hard Disk: Seagate 7200.7 160GB SATA
Memory: Corsair XMS2 DDR2-800 4-4-4-12 (1GB x 2)
Video Card: Various
Video Drivers: ATI Catalyst 6.10
NVIDIA ForceWare 96.97
NVIDIA ForceWare 91.47 (G70 SLI)
Desktop Resolution: 2560 x 1600 - 32-bit @ 60Hz
OS: Windows XP Professional SP2

P.S. The amps, the Corsair 620 has on the +5V rail 30A, and the Corsair 520 has 24A, other then that it's all the same amps and rails, so I don't think this will be a problem at all.
 
Not quite:

The +12v rails are the same Rating, but the "combined" rating is way different: The HX 520 has 40a combined, the 620 has 50a combined.

An HX 520 will power your system without a hitch.
 
Sky said:
In this you can see the Evga 8800GTX system was under load at ONLY 281W, again this is for everything. So I'm not sure how people came to the conclusion here that 520W isn't enough when it seems to be WAY more then enough.
Click to expand...

That load merely comprised of running "a few of the benchmarks from 3DMark06 to stress the GPUs."

Far from really punishing the system and getting power consumption numbers up there. ;)
 
My system draws ~400W AC when loaded to the max (orthos + 3DMark) so yeah, the Corsair 520 is plenty.

The E6750 and E6850 are exactly the same processors as the E6420 and E6600 (look at their multis)... they even have the same price points...
 
jonnyGURU said:
That load merely comprised of running "a few of the benchmarks from 3DMark06 to stress the GPUs."

Far from really punishing the system and getting power consumption numbers up there. ;)
Click to expand...

3DMark06 also stresses the CPU. ;)

Anyhow I'm not sure if running some 3Dmarks can really push full load or not, but I don't see why it wouldn't, it's just like gaming, running everything, and from what people are telling me the 520 is going to be more then enough to power my box.

From what someone told me the 620 doesn't even buy you any more room on the 12V rail so it wouldn't help at ALL with a higher end graphics card.
 
RAM GUY said:
Our HX520W will do the job for you I am sure it is a great PSU and one of the review sites stressed it to over 600 Watts but I normally build my systems with a PSU that has 20-30% more available power than I will need at max for best performance and keeping the PSU at nominal operation temp. Either way you would be fine I am sure.
Click to expand...


Ram guy had this to say over at the Corsair forum, but I replied:

If I'm only hitting 400W max on load, what percentage of available power is that left over? That seems like more then the 20-30% you're talking about.

I mean with an additional 100-120W left over seems like plenty of available power than I will need at max for best performance and keeping the PSU at nominal operation temp.

Hmm :confused:
 
My system pulls 225+ watts sitting in Vista on the desktop.
275+ running Orthos
320+ playing S.T.A.L.K.E.R.
330+ running the Unigine Sanctuary demo windowed with default settings and a copy of Orthos.

You should be fine so long as the PSU is high quality, but if it's not... eh. The Corsair is. You're good to go.
 
silent-circuit said:
My system pulls 225+ watts sitting in Vista on the desktop.
275+ running Orthos
320+ playing S.T.A.L.K.E.R.
330+ running the Unigine Sanctuary demo windowed with default settings and a copy of Orthos.

You should be fine so long as the PSU is high quality, but if it's not... eh. The Corsair is. You're good to go.
Click to expand...

What are you using to figure out these watts?
 
You guys need to also keep in mind that the amount of power you're pulling from the wall is not the same as the amount of power your PC uses. If you're pulling 350watts from the outlet, your system is using well under 300 watts.
 
Corsair 620HX, FTW! the 520 may be enough, but go for the 620. It will alow you to so SLI in the future.
​
 
I'm not going to use SLI, I've been there done that, don't care for dual cards for gaming.
 
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