Overclock.net › Forums › Components › Power Supplies › best 1kw psu
New Posts  All Forums:Forum Nav:

best 1kw psu - Page 2

post #11 of 45
Quote:
Originally Posted by Thunderer View Post
Why it is a fail???
there is good and there is better and as most of us know a single 12v rail is the way to go.
    
CPUMotherboardGraphicsRAM
i7 2600k 5000mhz(so far) ASUS MAXIMUS IV EXTREME msi 6970 and 2 6950's Mushkin Enhanced Blackline 2133mhz 
Hard DriveOptical DriveOSMonitor
Force GT(os) M4 64gb(games) f3 1tb(other) Samsung Windows 7 64bit Samsung BX2450 
KeyboardPowerCaseMouse
Black widow XFX ProSeries 1050W PSU 80+Gold  Corsair 700D Deathadder 
Mouse Pad
nope! 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
i7 2600k 5000mhz(so far) ASUS MAXIMUS IV EXTREME msi 6970 and 2 6950's Mushkin Enhanced Blackline 2133mhz 
Hard DriveOptical DriveOSMonitor
Force GT(os) M4 64gb(games) f3 1tb(other) Samsung Windows 7 64bit Samsung BX2450 
KeyboardPowerCaseMouse
Black widow XFX ProSeries 1050W PSU 80+Gold  Corsair 700D Deathadder 
Mouse Pad
nope! 
  hide details  
Reply
post #12 of 45
So I have bought one for my built in my sig and I would be using a 9800GX2/9800GTX in SLi, it would not be good???
Armored MeDuSa
(13 items)
 
  
CPUMotherboardGraphicsRAM
Q9450 ASUS Striker II Extreme 790i eVGA 9800GTX OCZ (2*2) 4GB DDR3 1333MHz 
Hard DriveOptical DriveOSMonitor
RaptorX 150GB, 2*7200.11 1TB 2*Samsung DVD-RW Vista Ultimate SP1 64Bit Samsung 2232BW 22" Widescreen 
KeyboardPowerCaseMouse
Microsoft Ergonomic Desktop 7000 Enermax Galaxy 1000W DXX Armor+ Microsoft Ergonomic Desktop 7000 
  hide details  
Reply
Armored MeDuSa
(13 items)
 
  
CPUMotherboardGraphicsRAM
Q9450 ASUS Striker II Extreme 790i eVGA 9800GTX OCZ (2*2) 4GB DDR3 1333MHz 
Hard DriveOptical DriveOSMonitor
RaptorX 150GB, 2*7200.11 1TB 2*Samsung DVD-RW Vista Ultimate SP1 64Bit Samsung 2232BW 22" Widescreen 
KeyboardPowerCaseMouse
Microsoft Ergonomic Desktop 7000 Enermax Galaxy 1000W DXX Armor+ Microsoft Ergonomic Desktop 7000 
  hide details  
Reply
post #13 of 45
Quote:
Originally Posted by microman View Post
there is good and there is better and as most of us know a single 12v rail is the way to go.
lol...

misinformed masses, on both sides of the fence.
Fermi
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core i7 920 Asus Rampage II Gene BFG GTX280 OCX 12GB DDR3 1600 
OSPower
Windows 7 Ultimate 64-bit Corsair VX550 
  hide details  
Reply
Fermi
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core i7 920 Asus Rampage II Gene BFG GTX280 OCX 12GB DDR3 1600 
OSPower
Windows 7 Ultimate 64-bit Corsair VX550 
  hide details  
Reply
post #14 of 45
Quote:
Originally Posted by 003 View Post
lol...

misinformed masses, on both sides of the fence.
since you are so informed lets here what you have to say
    
CPUMotherboardGraphicsRAM
i7 2600k 5000mhz(so far) ASUS MAXIMUS IV EXTREME msi 6970 and 2 6950's Mushkin Enhanced Blackline 2133mhz 
Hard DriveOptical DriveOSMonitor
Force GT(os) M4 64gb(games) f3 1tb(other) Samsung Windows 7 64bit Samsung BX2450 
KeyboardPowerCaseMouse
Black widow XFX ProSeries 1050W PSU 80+Gold  Corsair 700D Deathadder 
Mouse Pad
nope! 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
i7 2600k 5000mhz(so far) ASUS MAXIMUS IV EXTREME msi 6970 and 2 6950's Mushkin Enhanced Blackline 2133mhz 
Hard DriveOptical DriveOSMonitor
Force GT(os) M4 64gb(games) f3 1tb(other) Samsung Windows 7 64bit Samsung BX2450 
KeyboardPowerCaseMouse
Black widow XFX ProSeries 1050W PSU 80+Gold  Corsair 700D Deathadder 
Mouse Pad
nope! 
  hide details  
Reply
post #15 of 45
Quote:
Originally Posted by microman View Post
5 12v rails= FAIL
Quote:
Originally Posted by Thunderer View Post
Why it is a fail???
Quote:
Originally Posted by microman View Post
there is good and there is better and as most of us know a single 12v rail is the way to go.
Quote:
Originally Posted by 003 View Post
lol...

misinformed masses, on both sides of the fence.
Exactly.

microman: I'm curious as to where you get your information from, because that source needs to be sent into exile.

What is "multiple +12V rails" really: In most cases, multiple +12V rails are actually a single +12V source just split up into multiple +12V outputs each with a limited output capability. There are a few units that actually have two +12V sources, but these +12V outputs are either combined into one or split into four or more. To be clear: These REAL multiple +12V rail units are very rare and are all 1000W+ units (Enermax Galaxy, Topower/Tagan "Dual Engine", Ultra X3 1600W, etc.)

Do multiple +12V rails give me "better stability", etc: Nope. Not at all. The components that spilt up the +12V into multiple +12V rails doesn't do any kind of regulation, filtering, etc. They just split the source up into two, four, six, whatever +12V circuits and has a logic that "shuts down" the PSU if any of the circuits exceed a particular current.

So why split the +12V rails up?: Well.... 240VA+ is a lot of power. Some shorts aren't always detected by short circuit protection if there's enough resistance in the load. These "slow burn" shorts are enough to melt insulation and cause a small fire.

Why do some people FUD that single is better?: Because a while back, some PSU companies followed EPS12V specifications, which is for servers, not "gamers", for quad +12V rail PSU's and put ALL of the PCIe connectors on one of the +12V rails. The +12V rail was easily overloaded and caused the PSU to shut down. Instead of correcting the problem, they just did away with the splitting of +12V rails altogether. Multiple +12V rail "enthusiast" PSU's today have a +12V rail just for PCIe connectors or may even split four or six PCIe connectors up across two different +12V rails. The rails themselves are capable of far more power output than any PCIe graphics card would ever need.

But some people claim they can overclock better, etc. with a single +12V rail PSU: B.S. It's a placebo effect. The reality is that their previous PSU was defective or just wasn't as good as their current unit. If the old PSU was a Coolmax with four +12V rails and the new one is a PCP&C with one +12V rail, the new one isn't overclocking better because it's a single +12V rail unit. It's overclocking better because the old PSU was crap. It's only coincidental if the old PSU had multiple +12V rails and the current one has just one. The only "problem" with multiple +12V rails is that when they have a +12V rail overloaded, the PSU shuts down. Since there are no "limits" on single +12V rail PSU's, you can not overload the rails and cause them to shut down..... unless you're using a "too-small" PSU in the first place. Single +12V rails do not have better voltage regulation, do not have better ripple filtering, etc. unless the PSU is better to begin with.

Good thread on the matter: http://www.overclock.net/power-suppl...ails-work.html Pay particular attention to DuckieHo's drawings.

The Enermax Galaxy has two +12V sources. One is split into two for the CPU via each of the 4-pins in the 8-pin EPS12V connector. The other is split into three. One powers the +12V on the 24-pin and one of the PCIe. Another powers all of the fixed Molex connectors and a second PCIe. The third supplies power to the modular interface.

Only 17A per rail, but plenty of power if you use all of the fixed cables first. If running dual cards that require two power connectors, you just use one fixed and one modular cable on each card.
post #16 of 45
So, jonny, the lesson is..... be careful not to pull too much from one single rail on a multiple rail PSU ( aside from "stay away from el cheapo brands....)?
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel E6600 (LL629A) DFI BLOOD IRON P35-T2RL Diamond HD3870 GSkill ( 2x1G) DDR2-800 HZ's 
OSMonitorKeyboardCase
Windows XP Home (OEM) Sceptre 22" + Sceptre 20" Logitech G15 XG VIPER ( hey, it was free.) 
Mouse
LOGITECH MX518 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel E6600 (LL629A) DFI BLOOD IRON P35-T2RL Diamond HD3870 GSkill ( 2x1G) DDR2-800 HZ's 
OSMonitorKeyboardCase
Windows XP Home (OEM) Sceptre 22" + Sceptre 20" Logitech G15 XG VIPER ( hey, it was free.) 
Mouse
LOGITECH MX518 
  hide details  
Reply
post #17 of 45
I like my ultra X-3 1KW psu, it has given me no issues running everything that I have thrown at it. Ive had it for about 5 or 6 months now and its been doing great.
xeon
(13 items)
 
  
CPUMotherboardGraphicsRAM
W3520 x58 ud5 9800gtx+ tridents 
Hard DriveOSMonitorPower
wd black x2 W7 64 acer 23 ocz 850hx 
Case
haf932 
  hide details  
Reply
xeon
(13 items)
 
  
CPUMotherboardGraphicsRAM
W3520 x58 ud5 9800gtx+ tridents 
Hard DriveOSMonitorPower
wd black x2 W7 64 acer 23 ocz 850hx 
Case
haf932 
  hide details  
Reply
post #18 of 45
Quote:
Originally Posted by jonnyGURU View Post
Exactly.

microman: I'm curious as to where you get your information from, because that source needs to be sent into exile.

What is "multiple +12V rails" really: In most cases, multiple +12V rails are actually a single +12V source just split up into multiple +12V outputs each with a limited output capability. There are a few units that actually have two +12V sources, but these +12V outputs are either combined into one or split into four or more. To be clear: These REAL multiple +12V rail units are very rare and are all 1000W+ units (Enermax Galaxy, Topower/Tagan "Dual Engine", Ultra X3 1600W, etc.)

Do multiple +12V rails give me "better stability", etc: Nope. Not at all. The components that spilt up the +12V into multiple +12V rails doesn't do any kind of regulation, filtering, etc. They just split the source up into two, four, six, whatever +12V circuits and has a logic that "shuts down" the PSU if any of the circuits exceed a particular current.

So why split the +12V rails up?: Well.... 240VA+ is a lot of power. Some shorts aren't always detected by short circuit protection if there's enough resistance in the load. These "slow burn" shorts are enough to melt insulation and cause a small fire.

Why do some people FUD that single is better?: Because a while back, some PSU companies followed EPS12V specifications, which is for servers, not "gamers", for quad +12V rail PSU's and put ALL of the PCIe connectors on one of the +12V rails. The +12V rail was easily overloaded and caused the PSU to shut down. Instead of correcting the problem, they just did away with the splitting of +12V rails altogether. Multiple +12V rail "enthusiast" PSU's today have a +12V rail just for PCIe connectors or may even split four or six PCIe connectors up across two different +12V rails. The rails themselves are capable of far more power output than any PCIe graphics card would ever need.

But some people claim they can overclock better, etc. with a single +12V rail PSU: B.S. It's a placebo effect. The reality is that their previous PSU was defective or just wasn't as good as their current unit. If the old PSU was a Coolmax with four +12V rails and the new one is a PCP&C with one +12V rail, the new one isn't overclocking better because it's a single +12V rail unit. It's overclocking better because the old PSU was crap. It's only coincidental if the old PSU had multiple +12V rails and the current one has just one. The only "problem" with multiple +12V rails is that when they have a +12V rail overloaded, the PSU shuts down. Since there are no "limits" on single +12V rail PSU's, you can not overload the rails and cause them to shut down..... unless you're using a "too-small" PSU in the first place. Single +12V rails do not have better voltage regulation, do not have better ripple filtering, etc. unless the PSU is better to begin with.

Good thread on the matter: http://www.overclock.net/power-suppl...ails-work.html Pay particular attention to DuckieHo's drawings.

The Enermax Galaxy has two +12V sources. One is split into two for the CPU via each of the 4-pins in the 8-pin EPS12V connector. The other is split into three. One powers the +12V on the 24-pin and one of the PCIe. Another powers all of the fixed Molex connectors and a second PCIe. The third supplies power to the modular interface.

Only 17A per rail, but plenty of power if you use all of the fixed cables first. If running dual cards that require two power connectors, you just use one fixed and one modular cable on each card.
Thanks for your information. I learn a lots from your posts. The last thing needs to worry about is whether the PSU is single or multi-rails. Pick a good quality PSU with adequate amperage on 12v rails and see if it comes with all power connectors that you need etc based on your budget.
post #19 of 45
Quote:
Originally Posted by linskingdom View Post
Thanks for your information. I learn a lots from your posts. The last thing needs to worry about is whether the PSU is single or multi-rails. Pick a good quality PSU with adequate amperage on 12v rails and see if it comes with all power connectors that you need etc based on your budget.
Right. There's so many more important things to worry about. How many +12V rails a PSU has should be at the end of the list.

Quote:
Originally Posted by rottenotto View Post
So, jonny, the lesson is..... be careful not to pull too much from one single rail on a multiple rail PSU ( aside from "stay away from el cheapo brands....)?
Actually, you shouldn't even have to worry about it unless you have a pair of 300W graphics cards. 17A+ per rail across five rails is more than enough power for almost anyone.
post #20 of 45
Thread Starter 
ill just go with ocz lmao
SuperB Intel
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Q9450 EVGA 780i EVGA 9800GTX SSC 4*1gb 800mhz 2dual kits OCZ Reaper 3-4-4-15 
Hard DriveOSMonitorKeyboard
2*SG Baracuda 500Gb 7200.11/10 and WD Caviar 320Gb Windows XP Pro 64-bit Samsung 226CW Logitech Cordless Desktop Pro 
PowerCaseMouse
OCZ GameXStream 700w Antec 900 Tricool 5*120mm / 1*200mm Trust Predator / Microsoft Comfort 
  hide details  
Reply
SuperB Intel
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Q9450 EVGA 780i EVGA 9800GTX SSC 4*1gb 800mhz 2dual kits OCZ Reaper 3-4-4-15 
Hard DriveOSMonitorKeyboard
2*SG Baracuda 500Gb 7200.11/10 and WD Caviar 320Gb Windows XP Pro 64-bit Samsung 226CW Logitech Cordless Desktop Pro 
PowerCaseMouse
OCZ GameXStream 700w Antec 900 Tricool 5*120mm / 1*200mm Trust Predator / Microsoft Comfort 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Power Supplies
Overclock.net › Forums › Components › Power Supplies › best 1kw psu