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Corsair TX650 -> AX850 ?

post #1 of 5
Thread Starter 
I currently have a Corsair TX650. The immense bundle of cables slightly annoys me a little so I have been looking to go modular. I like the look of the AX850 due to it operating passively when outputting less than around 200W. Currently my TX650 is at 21dB at that load.

The question is, with my spec (see sig) what is the power consumption going to be if just sat doing minimal number crunching on the windows desktop (I can find websites that calculate maximum power, but not an estimated idle power). ie. would I ever benefit from the passive mode of a AX850?

Thanks in advance.
My System
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OCZ Vertex 2E 120GB, Samsung 1GB F4, WD CG 1TB Samsung External USB DVD-writer. Win7 64bit Benq XL2420T and Samsung 2233RZ 
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My System
(14 items)
 
  
CPUMotherboardGraphicsRAM
i7 3770K Asus P8Z77-V PRO EVGA GTX 780 SC G-Skill Ripjaw 2133Mhz 
Hard DriveOptical DriveOSMonitor
OCZ Vertex 2E 120GB, Samsung 1GB F4, WD CG 1TB Samsung External USB DVD-writer. Win7 64bit Benq XL2420T and Samsung 2233RZ 
KeyboardPowerCaseMouse
CM Storm Rapid Fire (Charry Brown) Corsair HX750W Coolermaster HAF X Logitech MX518 
Mouse PadAudio
Steelseries 9HD X-FI Titanium HD, Steelseries 7H 
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post #2 of 5
Can't know for sure what minimal number crunching entails. Best way to know for sure what you're pulling is to grab a kill-a-watts and see for yourself.

However I will say that when a system is more or less at idle, (cpu / gpu not being stressed) that a 920 should easily fall under 200w.

Easiest way to grab a bunch of idle system power usages is to check video card reviews, they almost always use a high end system and do real world measurements of the systems draw (from the wall). And since CPU and GPU are the biggest power users in any system, you can easily compare your system specs to theirs and get a good feel for things (give or take some watts based on how many HDDs and fans and whatever you run).
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ADATA S599 64GB SSD + 2x 1TB Spinpoint (Raid 0) Windows 7 64Bit Dell 23" Razer Lycosa 
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Seasonic X650 HAF X 
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Bleeding Edge
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ADATA S599 64GB SSD + 2x 1TB Spinpoint (Raid 0) Windows 7 64Bit Dell 23" Razer Lycosa 
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Seasonic X650 HAF X 
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post #3 of 5
Your system will pull less than 200 watts from the wall at idle. That will equate to about 170 watts at idle from the PSU.

You can run you sig with a quality 550 watt PSU. (2) 6970 will run on a quality 650 psu.

The Seasonic X650 is great unit, fully modular, and passively cooled at low loads.
    
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i7 950 @4.4Ghz 24/7,HT On Gigabyte GA-X58A-UD5 6950 Flash 925/1500 Corsair 12GB 
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Crucial C-300 SSD W7 64bit Corsair AX750 
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post #4 of 5
My sig rig idles at about 160 W with speed step (2.4GHz). Running at 4 GHz is over 200W though. It spikes to about 220W when my desktop background changes
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Clock for Clock
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120GB Intel X25-M + 1TB Caviar Black is so 00's Windows 7 Ultimate x64 Dell U2410 + 2X HP ZR24w 
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post #5 of 5
Thread Starter 
Thanks for all the info about idle powers.


Quote:
Originally Posted by yati View Post

The Seasonic X650 is great unit, fully modular, and passively cooled at low loads.
Are there any other alternatives other than the Corsair AX750? Really keen on passive operation at low powers.
My System
(14 items)
 
  
CPUMotherboardGraphicsRAM
i7 3770K Asus P8Z77-V PRO EVGA GTX 780 SC G-Skill Ripjaw 2133Mhz 
Hard DriveOptical DriveOSMonitor
OCZ Vertex 2E 120GB, Samsung 1GB F4, WD CG 1TB Samsung External USB DVD-writer. Win7 64bit Benq XL2420T and Samsung 2233RZ 
KeyboardPowerCaseMouse
CM Storm Rapid Fire (Charry Brown) Corsair HX750W Coolermaster HAF X Logitech MX518 
Mouse PadAudio
Steelseries 9HD X-FI Titanium HD, Steelseries 7H 
  hide details  
Reply
My System
(14 items)
 
  
CPUMotherboardGraphicsRAM
i7 3770K Asus P8Z77-V PRO EVGA GTX 780 SC G-Skill Ripjaw 2133Mhz 
Hard DriveOptical DriveOSMonitor
OCZ Vertex 2E 120GB, Samsung 1GB F4, WD CG 1TB Samsung External USB DVD-writer. Win7 64bit Benq XL2420T and Samsung 2233RZ 
KeyboardPowerCaseMouse
CM Storm Rapid Fire (Charry Brown) Corsair HX750W Coolermaster HAF X Logitech MX518 
Mouse PadAudio
Steelseries 9HD X-FI Titanium HD, Steelseries 7H 
  hide details  
Reply
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