Overclock.net › Forums › Intel › Intel - General › PSU gurus needed please
New Posts  All Forums:Forum Nav:

PSU gurus needed please

post #1 of 13
Thread Starter 
I working on my project case (a Rocketfish) and I'll be keeping both hard drive racks in their factory locations. This presents a problem with my current PSU as it's way too tight of a fit.

Luckily it's way too much power supply for my rig. I've narrowed my future PSU down to two possbilities:

Corsair 620 Modular
Corsair 750 Non-Modular

I'm pretty settled on what I need this thing to power. Basically my sig rig plus the following:

Swifty 655 vario
dual 12" cathodes
6 (total) SATA HDD

With the ATi grand-re butt-kicking on the horizon, one or two 48xx are also a stong possibility.

Thanks for the help!
post #2 of 13
Standard ATX is 6" while the toughpower is 8"... looking at my case, I don't see any issues fitting it in there ... this is of course assuming that you cut wire management holes like below:



You could also hack away at the top and mount the PSU there:



If you reaaaallly have to get a new PSU, the Corsair 750W seems like a good choice... you might also look at some Silverstones
post #3 of 13
I prefer modular PSU's over non, because you can get rid of cables you don't need completely, so your air flow and ambient temperature is better off. For that reason, I'd stick with the Corsair 620W, not to mention that those 3 rails (the 750 only has 1) are sweet.
The Space Heater
(13 items)
 
  
CPUMotherboardGraphicsRAM
Q9550 E0 4.04GHz EP45-UD3P 2 x EVGA 896MB 55nm c216 2x2GB Corsair Dominators 
Hard DriveOptical DriveOSMonitor
Seagate 250GB Sony and TSST Windows XP (SP2) Acer H213H (21.5", 1080p) 
KeyboardPowerCaseMouse
Logitech G15 Corsair TX750W NZXT Tempest Logitech G5 
Mouse Pad
Ratpadz XT 
  hide details  
Reply
The Space Heater
(13 items)
 
  
CPUMotherboardGraphicsRAM
Q9550 E0 4.04GHz EP45-UD3P 2 x EVGA 896MB 55nm c216 2x2GB Corsair Dominators 
Hard DriveOptical DriveOSMonitor
Seagate 250GB Sony and TSST Windows XP (SP2) Acer H213H (21.5", 1080p) 
KeyboardPowerCaseMouse
Logitech G15 Corsair TX750W NZXT Tempest Logitech G5 
Mouse Pad
Ratpadz XT 
  hide details  
Reply
post #4 of 13
A multi rail PS is merely a single rail unit that been split up into over rated multi rails. The multi rail PS don't add up in 12+ rails to what they actually put out.
    
CPUMotherboardGraphicsRAM
X4 965 ASUS M4A79 Deluxe 9800GTx2 2x2G OCZ Reapers 
Hard DriveOptical DriveOSMonitor
500G WD Black LiteOn CD/DVD R/W Win7 64 22'' ws Acer AL2223W 
KeyboardPowerMouse
MS KU462 Natural SS DA750 MS 5 button 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
X4 965 ASUS M4A79 Deluxe 9800GTx2 2x2G OCZ Reapers 
Hard DriveOptical DriveOSMonitor
500G WD Black LiteOn CD/DVD R/W Win7 64 22'' ws Acer AL2223W 
KeyboardPowerMouse
MS KU462 Natural SS DA750 MS 5 button 
  hide details  
Reply
post #5 of 13
I know this, but what happens when you split up the signal is that everything that is getting powered draws no more or less than is needed and there's less of a chance to shock your parts, with a single rail things can get very sketchy.
The Space Heater
(13 items)
 
  
CPUMotherboardGraphicsRAM
Q9550 E0 4.04GHz EP45-UD3P 2 x EVGA 896MB 55nm c216 2x2GB Corsair Dominators 
Hard DriveOptical DriveOSMonitor
Seagate 250GB Sony and TSST Windows XP (SP2) Acer H213H (21.5", 1080p) 
KeyboardPowerCaseMouse
Logitech G15 Corsair TX750W NZXT Tempest Logitech G5 
Mouse Pad
Ratpadz XT 
  hide details  
Reply
The Space Heater
(13 items)
 
  
CPUMotherboardGraphicsRAM
Q9550 E0 4.04GHz EP45-UD3P 2 x EVGA 896MB 55nm c216 2x2GB Corsair Dominators 
Hard DriveOptical DriveOSMonitor
Seagate 250GB Sony and TSST Windows XP (SP2) Acer H213H (21.5", 1080p) 
KeyboardPowerCaseMouse
Logitech G15 Corsair TX750W NZXT Tempest Logitech G5 
Mouse Pad
Ratpadz XT 
  hide details  
Reply
post #6 of 13
Well if you really want modular, go with the Silverstone Strider 750w

http://www.xoxide.com/silverstone-st...hannelid=FROOG

I still think that no matter what, you're going to have to do some cable management so what's the point of paying extra for a modular The pic I posted above is of a OCZ 600W GameXstream with (2)Molex->6pin adapters.... that's an insane amount of cables and I managed to route them just fine
post #7 of 13
Quote:
Originally Posted by grmnasasin0227 View Post
I know this, but what happens when you split up the signal is that everything that is getting powered draws no more or less than is needed and there's less of a chance to shock your parts, with a single rail things can get very sketchy.
No matter the rail configuration, every component will draw no more or less power than is needed. There is no less chance to shock your parts on a multi-rail. The idea of multiple rails was so no one connector can draw more than 18A. This is a good idea in theory but in the real world it doesn't really make much difference. If a component shorts out it will not be able to draw more than 18A, which is better than say 60A (the whole 12V capacity for the Corsair 750). But it is still shorting and killing the component, although with less of a chance for complete disaster like a fire since there is less current available. But in the real world, this hardly ever happens and isn't something that you should really be worried about. The number of rails should be the least of your worries. If I didn't explain it well enough, let jonnyGURU answer it at length: http://www.overclock.net/power-suppl...ml#post3614982
Quote:
Originally Posted by killa_concept View Post
Well if you really want modular, go with the Silverstone Strider 750w

http://www.xoxide.com/silverstone-st...hannelid=FROOG

I still think that no matter what, you're going to have to do some cable management so what's the point of paying extra for a modular The pic I posted above is of a OCZ 600W GameXstream with (2)Molex->6pin adapters.... that's an insane amount of cables and I managed to route them just fine
While that is a fairly good PSU, I think we could do better for the price.

Now to the OP, If you decide to get 2 4850, I think the Corsair hx620 or the tx650 would be a good choice but if you plan on getting 2 4870s you should probably get the tx750, the PC P&C Silencer 750 (this is a bit long at ~7" so you might want to avoid that one since it is only an inch shorter, unless that is enough to make a difference) or the Hiper Type-M 780W (same internals as the Corsair, but it is also ~7" long) since they draw ~160W each at stock. If you wanted modular get something like the Xigmatek 750 (same internals as the Corsair and Hiper) or the DA750 (also a little on the long side at ~7" compared to the Corsairs and Xigmatek at 6.3").
i7 monsta
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 920 [4.2GHz] [1.325V] ASUS P6T Deluxe V2 2x XFX 5870 [1000/1250] G.Skill 3x2GB 1600MHz 
Hard DriveOSMonitorKeyboard
X25-M 80GB, 320GB WD Scorpio Black Vista x64 2007FP-3007WFP-2007FP-1080p 32" OCN Ducky Brown 
PowerCaseMouse
Silverstone ST85F-P whiteOut G9 
  hide details  
Reply
i7 monsta
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 920 [4.2GHz] [1.325V] ASUS P6T Deluxe V2 2x XFX 5870 [1000/1250] G.Skill 3x2GB 1600MHz 
Hard DriveOSMonitorKeyboard
X25-M 80GB, 320GB WD Scorpio Black Vista x64 2007FP-3007WFP-2007FP-1080p 32" OCN Ducky Brown 
PowerCaseMouse
Silverstone ST85F-P whiteOut G9 
  hide details  
Reply
post #8 of 13
Thread Starter 
You guys rock. I've decided on the 750. I really love my modular Thermaltake but as my system grew, I used most all of the connectors anyway so as it stands right now I'm not really benefitting from that feature. Great help you really made this tricky decision an easy one!
post #9 of 13
Quote:
Originally Posted by shinji2k View Post
No matter the rail configuration, every component will draw no more or less power than is needed. There is no less chance to shock your parts on a multi-rail. The idea of multiple rails was so no one connector can draw more than 18A. This is a good idea in theory but in the real world it doesn't really make much difference. If a component shorts out it will not be able to draw more than 18A, which is better than say 60A (the whole 12V capacity for the Corsair 750). But it is still shorting and killing the component, although with less of a chance for complete disaster like a fire since there is less current available. But in the real world, this hardly ever happens and isn't something that you should really be worried about. The number of rails should be the least of your worries. If I didn't explain it well enough, let jonnyGURU answer it at length: http://www.overclock.net/power-suppl...ml#post3614982

While that is a fairly good PSU, I think we could do better for the price.

Now to the OP, If you decide to get 2 4850, I think the Corsair hx620 or the tx650 would be a good choice but if you plan on getting 2 4870s you should probably get the tx750, the PC P&C Silencer 750 (this is a bit long at ~7" so you might want to avoid that one since it is only an inch shorter, unless that is enough to make a difference) or the Hiper Type-M 780W (same internals as the Corsair, but it is also ~7" long) since they draw ~160W each at stock. If you wanted modular get something like the Xigmatek 750 (same internals as the Corsair and Hiper) or the DA750 (also a little on the long side at ~7" compared to the Corsairs and Xigmatek at 6.3").
Just OWNed it right there,

if you're going to list those psus i would of also included:
http://www.newegg.com/Product/Produc...82E16817379006

it's not modular though.
liger-zero
(13 items)
 
  
CPUMotherboardGraphicsRAM
930/920/920/2500k/2500k/x4-640/x4-630/ x58Pro/x58Ext/P6TD/P8P67/P35/A780L/785GM-E51/H55M 5870CFX/GTX260Sli/5870/GTX260-Sli/GTX260/9600/8800 Gskill/Gskill/Gskill/Gskill/Corsair/Corsair/GSkill 
Hard DriveOptical DriveOSMonitor
OWC 6G Extreme PRO / Crucial M4 SAMSUNG DVD-RW DL X64 Win 7 | X86 xp pro | OSX | Ubuntu | Backtrack Samsung 23 x 5 
KeyboardPowerCase
Saitek 850TX/MXS600/750TX/750TX/EA500/EA500/EA500/MxS500 700d + Rackmount server chassis 
  hide details  
Reply
liger-zero
(13 items)
 
  
CPUMotherboardGraphicsRAM
930/920/920/2500k/2500k/x4-640/x4-630/ x58Pro/x58Ext/P6TD/P8P67/P35/A780L/785GM-E51/H55M 5870CFX/GTX260Sli/5870/GTX260-Sli/GTX260/9600/8800 Gskill/Gskill/Gskill/Gskill/Corsair/Corsair/GSkill 
Hard DriveOptical DriveOSMonitor
OWC 6G Extreme PRO / Crucial M4 SAMSUNG DVD-RW DL X64 Win 7 | X86 xp pro | OSX | Ubuntu | Backtrack Samsung 23 x 5 
KeyboardPowerCase
Saitek 850TX/MXS600/750TX/750TX/EA500/EA500/EA500/MxS500 700d + Rackmount server chassis 
  hide details  
Reply
post #10 of 13
the Silverstone Strider PSU is actually the lowest model of that brand and not the best one, even for the price. i would also recommend the Silverstone DA750
MIVE
(14 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500k (4.7ghz at 1.33v) Asus Maximus IV Extreme MSI GTX 980 Ti 6G Gaming  16GB(4x4GB) G. Skil Sniper 
Hard DriveOptical DriveCoolingOS
Crucial M4 Asus dvd-rom (sata) Corsair H105 Windows 8.1 X64 
MonitorKeyboardPowerCase
Asus ROG Swift Filco Ninja OCZ ZX1000W Silverstone Raven RV02 
MouseMouse Pad
Cyborg RAT 7  Steel Series 
  hide details  
Reply
MIVE
(14 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500k (4.7ghz at 1.33v) Asus Maximus IV Extreme MSI GTX 980 Ti 6G Gaming  16GB(4x4GB) G. Skil Sniper 
Hard DriveOptical DriveCoolingOS
Crucial M4 Asus dvd-rom (sata) Corsair H105 Windows 8.1 X64 
MonitorKeyboardPowerCase
Asus ROG Swift Filco Ninja OCZ ZX1000W Silverstone Raven RV02 
MouseMouse Pad
Cyborg RAT 7  Steel Series 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Intel - General
Overclock.net › Forums › Intel › Intel - General › PSU gurus needed please