Overclock.net › Forums › Components › Power Supplies › Might I need a second PSU?
New Posts  All Forums:Forum Nav:

Might I need a second PSU?

post #1 of 17
Thread Starter 
Alright, I'm thinking I'll be pretty damn close to the limit on my AX1200.

-Tri-SLI GTX 580's (~750W)
-i7 2600K (4.8Ghz) (~120W)
-2 X MCP655 water pumps (dunno how much)
-Z68 UD7 (dunno either)
-4 X 140mm Noise Blockers (~3 to 4 W)
-6 X 120mm Multiframe Noise Blockers (~5 to 6W)
-2 X 192mm NZXT fans (~17W)
-Arqtik Cooling TEC (Qmax 400W, say 225w to make it fair)
-Essense ST (dunno)
-2 X Mushkin Chronos deluxe SSD (6W)

With the wattages I know I'm up to 1128W.

Can someone confirm or tell me I'm ok with the 1200 or would I need an extra 400w PSU just for my TEC?

I was thinking on a 400W fanless Seasonic...

Thanks!
Synthetic Anatomy
(14 items)
 
NAT-inator
(11 items)
 
 
CPUMotherboardGraphicsGraphics
Intel Core i7 2700K Z68X-UD7-B3 NVIDIA GeForce GTX 580 NVIDIA GeForce GTX 580 
GraphicsRAMRAMRAM
NVIDIA GeForce GTX 580 Corsair  Corsair  Corsair  
RAMHard DriveCoolingPower
Corsair  2x Mushkin 240Gb SSD Raid 0  A lot. ST1500 
CaseAudio
FT02 Xonar ST 
CPUMotherboardGraphicsRAM
i5-2500K P8P67 WS Revolution Sparkle Calibre GTX 560 G.Skill 
Hard DriveHard DriveOptical DriveCooling
Corsair Force SSD WD Caviar Black BD combo Liquid 
OSPowerCase
Win 7 Ultimate AX650 500R 
  hide details  
Reply
Synthetic Anatomy
(14 items)
 
NAT-inator
(11 items)
 
 
CPUMotherboardGraphicsGraphics
Intel Core i7 2700K Z68X-UD7-B3 NVIDIA GeForce GTX 580 NVIDIA GeForce GTX 580 
GraphicsRAMRAMRAM
NVIDIA GeForce GTX 580 Corsair  Corsair  Corsair  
RAMHard DriveCoolingPower
Corsair  2x Mushkin 240Gb SSD Raid 0  A lot. ST1500 
CaseAudio
FT02 Xonar ST 
CPUMotherboardGraphicsRAM
i5-2500K P8P67 WS Revolution Sparkle Calibre GTX 560 G.Skill 
Hard DriveHard DriveOptical DriveCooling
Corsair Force SSD WD Caviar Black BD combo Liquid 
OSPowerCase
Win 7 Ultimate AX650 500R 
  hide details  
Reply
post #2 of 17
Nowhere close.
post #3 of 17
Thread Starter 
Yup, I just went to Thermaltake site and they have a PSU calc. Says I need a 1265W PSU (with 30% capacitor aging) and I only have an AX1200...

So I either need to get a new PSU, or a cheaper and more long lasting solution is getting an extra low wattage PSU...
Synthetic Anatomy
(14 items)
 
NAT-inator
(11 items)
 
 
CPUMotherboardGraphicsGraphics
Intel Core i7 2700K Z68X-UD7-B3 NVIDIA GeForce GTX 580 NVIDIA GeForce GTX 580 
GraphicsRAMRAMRAM
NVIDIA GeForce GTX 580 Corsair  Corsair  Corsair  
RAMHard DriveCoolingPower
Corsair  2x Mushkin 240Gb SSD Raid 0  A lot. ST1500 
CaseAudio
FT02 Xonar ST 
CPUMotherboardGraphicsRAM
i5-2500K P8P67 WS Revolution Sparkle Calibre GTX 560 G.Skill 
Hard DriveHard DriveOptical DriveCooling
Corsair Force SSD WD Caviar Black BD combo Liquid 
OSPowerCase
Win 7 Ultimate AX650 500R 
  hide details  
Reply
Synthetic Anatomy
(14 items)
 
NAT-inator
(11 items)
 
 
CPUMotherboardGraphicsGraphics
Intel Core i7 2700K Z68X-UD7-B3 NVIDIA GeForce GTX 580 NVIDIA GeForce GTX 580 
GraphicsRAMRAMRAM
NVIDIA GeForce GTX 580 Corsair  Corsair  Corsair  
RAMHard DriveCoolingPower
Corsair  2x Mushkin 240Gb SSD Raid 0  A lot. ST1500 
CaseAudio
FT02 Xonar ST 
CPUMotherboardGraphicsRAM
i5-2500K P8P67 WS Revolution Sparkle Calibre GTX 560 G.Skill 
Hard DriveHard DriveOptical DriveCooling
Corsair Force SSD WD Caviar Black BD combo Liquid 
OSPowerCase
Win 7 Ultimate AX650 500R 
  hide details  
Reply
post #4 of 17
Thread Starter 
Quote:
Originally Posted by Phaedrus2129 View Post

Nowhere close.

You mean that I'd still be good with the AX1200?
Synthetic Anatomy
(14 items)
 
NAT-inator
(11 items)
 
 
CPUMotherboardGraphicsGraphics
Intel Core i7 2700K Z68X-UD7-B3 NVIDIA GeForce GTX 580 NVIDIA GeForce GTX 580 
GraphicsRAMRAMRAM
NVIDIA GeForce GTX 580 Corsair  Corsair  Corsair  
RAMHard DriveCoolingPower
Corsair  2x Mushkin 240Gb SSD Raid 0  A lot. ST1500 
CaseAudio
FT02 Xonar ST 
CPUMotherboardGraphicsRAM
i5-2500K P8P67 WS Revolution Sparkle Calibre GTX 560 G.Skill 
Hard DriveHard DriveOptical DriveCooling
Corsair Force SSD WD Caviar Black BD combo Liquid 
OSPowerCase
Win 7 Ultimate AX650 500R 
  hide details  
Reply
Synthetic Anatomy
(14 items)
 
NAT-inator
(11 items)
 
 
CPUMotherboardGraphicsGraphics
Intel Core i7 2700K Z68X-UD7-B3 NVIDIA GeForce GTX 580 NVIDIA GeForce GTX 580 
GraphicsRAMRAMRAM
NVIDIA GeForce GTX 580 Corsair  Corsair  Corsair  
RAMHard DriveCoolingPower
Corsair  2x Mushkin 240Gb SSD Raid 0  A lot. ST1500 
CaseAudio
FT02 Xonar ST 
CPUMotherboardGraphicsRAM
i5-2500K P8P67 WS Revolution Sparkle Calibre GTX 560 G.Skill 
Hard DriveHard DriveOptical DriveCooling
Corsair Force SSD WD Caviar Black BD combo Liquid 
OSPowerCase
Win 7 Ultimate AX650 500R 
  hide details  
Reply
post #5 of 17
On the Arqtic Ccooling website, it says:
Quote:
The capable Qmax 400W is if you ran the TEC at 24.8V, it's maximum voltage. But in this case the max voltage put through these TECs is 12V, causing it to pull about approx 13A if your hot side is at 35°C.

So your maximum power draw should be in the region of 160W if you run it off a standard molex connector (or use one of their controllers).

EDIT:

The MPC655 uses 23W at 12V maximum setting (according to specs on the box and online).

Adding these wattages to those you wrote you get something approaching 1150W. I would personally buy a 1350W PSU, as overall that would be more efficient than adding in a 400W PSU (lower power doesn't tend to be high efficiency). That also allows for power draw being a little more than you calculated.
Edited by debs3759 - 11/26/11 at 6:30pm
post #6 of 17
Quote:
Originally Posted by Rognin View Post

Yup, I just went to Thermaltake site and they have a PSU calc. Says I need a 1265W PSU (with 30% capacitor aging) and I only have an AX1200...
So I either need to get a new PSU, or a cheaper and more long lasting solution is getting an extra low wattage PSU...

Don't add 30% capacitor aging... Or any aging at all. Your AX1200 isn't twelve years old.
post #7 of 17
Thread Starter 
Quote:
Originally Posted by debs3759 View Post

On the Arqtic Ccooling website, it says:
So your maximum power draw should be in the region of 160W if you run it off a standard molex connector (or use one of their controllers).
EDIT:
The MPC655 uses 23W at 12V maximum setting (according to specs on the box and online).
Adding these wattages to those you wrote you get something approaching 1150W. I would personally buy a 1350W PSU, as overall that would be more efficient than adding in a 400W PSU (lower power doesn't tend to be high efficiency). That also allows for power draw being a little more than you calculated.

The price of a 1350W compared to just adding a 400w dedicated to fans TEC and pumps would be a cheaper solution in my book. A Seasonic Fanless 400W is 80 Gold cert, so it's efficient and at 120$ it's cheaper.

I'll see how much I draw when the puter is back up and running through my UPS. Afterwhich I'll decide if I need a new PSU.
Synthetic Anatomy
(14 items)
 
NAT-inator
(11 items)
 
 
CPUMotherboardGraphicsGraphics
Intel Core i7 2700K Z68X-UD7-B3 NVIDIA GeForce GTX 580 NVIDIA GeForce GTX 580 
GraphicsRAMRAMRAM
NVIDIA GeForce GTX 580 Corsair  Corsair  Corsair  
RAMHard DriveCoolingPower
Corsair  2x Mushkin 240Gb SSD Raid 0  A lot. ST1500 
CaseAudio
FT02 Xonar ST 
CPUMotherboardGraphicsRAM
i5-2500K P8P67 WS Revolution Sparkle Calibre GTX 560 G.Skill 
Hard DriveHard DriveOptical DriveCooling
Corsair Force SSD WD Caviar Black BD combo Liquid 
OSPowerCase
Win 7 Ultimate AX650 500R 
  hide details  
Reply
Synthetic Anatomy
(14 items)
 
NAT-inator
(11 items)
 
 
CPUMotherboardGraphicsGraphics
Intel Core i7 2700K Z68X-UD7-B3 NVIDIA GeForce GTX 580 NVIDIA GeForce GTX 580 
GraphicsRAMRAMRAM
NVIDIA GeForce GTX 580 Corsair  Corsair  Corsair  
RAMHard DriveCoolingPower
Corsair  2x Mushkin 240Gb SSD Raid 0  A lot. ST1500 
CaseAudio
FT02 Xonar ST 
CPUMotherboardGraphicsRAM
i5-2500K P8P67 WS Revolution Sparkle Calibre GTX 560 G.Skill 
Hard DriveHard DriveOptical DriveCooling
Corsair Force SSD WD Caviar Black BD combo Liquid 
OSPowerCase
Win 7 Ultimate AX650 500R 
  hide details  
Reply
post #8 of 17
Thread Starter 
Well just with one card, pumps, fans, SSD's, DVD, CPU and TEC while folding I pull 784W from the wall. This is with stock clocks, with the two other 580's (they aren't working and an RMA is in the process) I'd be looking at an added 500W while folding. That brings me to 1284w, so I bought the 400w seasonic (40$ rebate plus 20$ mail in rebate). That gives me a 400W PSU fully modular and 80 gold cert for less than 100CAD. Pretty good price if you ask me instead of buying a 1350w PSU and being stuck with a AX1200.
Synthetic Anatomy
(14 items)
 
NAT-inator
(11 items)
 
 
CPUMotherboardGraphicsGraphics
Intel Core i7 2700K Z68X-UD7-B3 NVIDIA GeForce GTX 580 NVIDIA GeForce GTX 580 
GraphicsRAMRAMRAM
NVIDIA GeForce GTX 580 Corsair  Corsair  Corsair  
RAMHard DriveCoolingPower
Corsair  2x Mushkin 240Gb SSD Raid 0  A lot. ST1500 
CaseAudio
FT02 Xonar ST 
CPUMotherboardGraphicsRAM
i5-2500K P8P67 WS Revolution Sparkle Calibre GTX 560 G.Skill 
Hard DriveHard DriveOptical DriveCooling
Corsair Force SSD WD Caviar Black BD combo Liquid 
OSPowerCase
Win 7 Ultimate AX650 500R 
  hide details  
Reply
Synthetic Anatomy
(14 items)
 
NAT-inator
(11 items)
 
 
CPUMotherboardGraphicsGraphics
Intel Core i7 2700K Z68X-UD7-B3 NVIDIA GeForce GTX 580 NVIDIA GeForce GTX 580 
GraphicsRAMRAMRAM
NVIDIA GeForce GTX 580 Corsair  Corsair  Corsair  
RAMHard DriveCoolingPower
Corsair  2x Mushkin 240Gb SSD Raid 0  A lot. ST1500 
CaseAudio
FT02 Xonar ST 
CPUMotherboardGraphicsRAM
i5-2500K P8P67 WS Revolution Sparkle Calibre GTX 560 G.Skill 
Hard DriveHard DriveOptical DriveCooling
Corsair Force SSD WD Caviar Black BD combo Liquid 
OSPowerCase
Win 7 Ultimate AX650 500R 
  hide details  
Reply
post #9 of 17
I think you would have been fine with the AX1200. Those voltages are for the components under 100% load, and unless you plan on folding with them all the time I doubt they would max out the 1200w.
    
CPUMotherboardGraphicsRAM
Intel Core i5 2500K EVGA Z68 FTW NVIDIA GeForce GTX 480 Corsair  
RAMRAMRAMHard Drive
Corsair  Corsair  Corsair  Western Digital Black  
CoolingCoolingOSMonitor
XSPC Rasa block XSPC EX360 Windows 7 64 bit Signature Edition ASUS V266H 
KeyboardPowerCaseMouse
Razer Blackwidow Ultimate Corsair HX750 Coolermaster HAF932  Razer Naga Epic 
Mouse PadAudioAudio
Razer Exactmat Logitech Z550 Creative Soundblaster X-Fi Titanium Fatal1ty 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
Intel Core i5 2500K EVGA Z68 FTW NVIDIA GeForce GTX 480 Corsair  
RAMRAMRAMHard Drive
Corsair  Corsair  Corsair  Western Digital Black  
CoolingCoolingOSMonitor
XSPC Rasa block XSPC EX360 Windows 7 64 bit Signature Edition ASUS V266H 
KeyboardPowerCaseMouse
Razer Blackwidow Ultimate Corsair HX750 Coolermaster HAF932  Razer Naga Epic 
Mouse PadAudioAudio
Razer Exactmat Logitech Z550 Creative Soundblaster X-Fi Titanium Fatal1ty 
  hide details  
Reply
post #10 of 17
Thread Starter 
Quote:
Originally Posted by Socom View Post

I think you would have been fine with the AX1200. Those voltages are for the components under 100% load, and unless you plan on folding with them all the time I doubt they would max out the 1200w.

I do, I fold as soon as I let the keyboard go. That's the reason I got the 400W. I'll plug all the peripherals and the TEC on the 400W and only the MOBO, CPU, and vid cards on the AX1200.
Synthetic Anatomy
(14 items)
 
NAT-inator
(11 items)
 
 
CPUMotherboardGraphicsGraphics
Intel Core i7 2700K Z68X-UD7-B3 NVIDIA GeForce GTX 580 NVIDIA GeForce GTX 580 
GraphicsRAMRAMRAM
NVIDIA GeForce GTX 580 Corsair  Corsair  Corsair  
RAMHard DriveCoolingPower
Corsair  2x Mushkin 240Gb SSD Raid 0  A lot. ST1500 
CaseAudio
FT02 Xonar ST 
CPUMotherboardGraphicsRAM
i5-2500K P8P67 WS Revolution Sparkle Calibre GTX 560 G.Skill 
Hard DriveHard DriveOptical DriveCooling
Corsair Force SSD WD Caviar Black BD combo Liquid 
OSPowerCase
Win 7 Ultimate AX650 500R 
  hide details  
Reply
Synthetic Anatomy
(14 items)
 
NAT-inator
(11 items)
 
 
CPUMotherboardGraphicsGraphics
Intel Core i7 2700K Z68X-UD7-B3 NVIDIA GeForce GTX 580 NVIDIA GeForce GTX 580 
GraphicsRAMRAMRAM
NVIDIA GeForce GTX 580 Corsair  Corsair  Corsair  
RAMHard DriveCoolingPower
Corsair  2x Mushkin 240Gb SSD Raid 0  A lot. ST1500 
CaseAudio
FT02 Xonar ST 
CPUMotherboardGraphicsRAM
i5-2500K P8P67 WS Revolution Sparkle Calibre GTX 560 G.Skill 
Hard DriveHard DriveOptical DriveCooling
Corsair Force SSD WD Caviar Black BD combo Liquid 
OSPowerCase
Win 7 Ultimate AX650 500R 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Power Supplies
Overclock.net › Forums › Components › Power Supplies › Might I need a second PSU?