Overclock.net › Forums › Components › Power Supplies › Which 700-750W PSU?
New Posts  All Forums:Forum Nav:

Which 700-750W PSU? - Page 2

post #11 of 14
Thread Starter 
As sucky as it may be, the zalman is only R100 more than the corsair, but modular, i cant find a ripple test on it though. So far the corsairs ripple on the 12v is "bad" (ie could be better)
Figglesticks
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 920 Asus P6E SE Zotac GTX 480 TeamGroup 3 x 2GB 
Hard DriveOSMonitorKeyboard
TeamGroup Extreme G-1 + 2 X Western 2tb Seven Ultimate X64 Samsung P2350 84 key 
PowerCaseMouseMouse Pad
CoolerMaster M700 (All black leads) Antec 300 - Mcp655 - ETC G5 Razer Goliathus Alpha 
  hide details  
Reply
Figglesticks
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 920 Asus P6E SE Zotac GTX 480 TeamGroup 3 x 2GB 
Hard DriveOSMonitorKeyboard
TeamGroup Extreme G-1 + 2 X Western 2tb Seven Ultimate X64 Samsung P2350 84 key 
PowerCaseMouseMouse Pad
CoolerMaster M700 (All black leads) Antec 300 - Mcp655 - ETC G5 Razer Goliathus Alpha 
  hide details  
Reply
post #12 of 14
The Corsair 750 is starting to reach the limit for that particular platform, but ripple is still within specs. It is higher than we would like, so when compared to other PSUs, it is about the only place the Corsair is lacking. But as long as it stays within specs, there's no problem. As for the Zalman, I don't think I've seen a ripple test for the 750W, but the 600W can be found here: http://jonnyguru.com/modules.php?nam...Story3&reid=30. As you can see, there's barely any ripple at all. If you compare to other Epsilon based PSUs like the OCZ GameXstream 700, even at about 500-600W ripple is out of control: http://jonnyguru.com/modules.php?nam...Story2&reid=24. It's obvious Zalman was able to tweak whatever was wrong with the FSP Epsilon line, and fixed it's only real weakness. That makes the Zalman a very nice PSU.
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 #13 of 14
Thread Starter 
I found 1:
http://www.bcchardware.com/index.php...1&limitstart=0
The 12V ripples the same as the corsair...
But modular will probably make my choice for me...
Figglesticks
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 920 Asus P6E SE Zotac GTX 480 TeamGroup 3 x 2GB 
Hard DriveOSMonitorKeyboard
TeamGroup Extreme G-1 + 2 X Western 2tb Seven Ultimate X64 Samsung P2350 84 key 
PowerCaseMouseMouse Pad
CoolerMaster M700 (All black leads) Antec 300 - Mcp655 - ETC G5 Razer Goliathus Alpha 
  hide details  
Reply
Figglesticks
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 920 Asus P6E SE Zotac GTX 480 TeamGroup 3 x 2GB 
Hard DriveOSMonitorKeyboard
TeamGroup Extreme G-1 + 2 X Western 2tb Seven Ultimate X64 Samsung P2350 84 key 
PowerCaseMouseMouse Pad
CoolerMaster M700 (All black leads) Antec 300 - Mcp655 - ETC G5 Razer Goliathus Alpha 
  hide details  
Reply
post #14 of 14
I'm not sure what to think of that review site. Their PSU reviews seem well intentioned, but I question their results. By their own admission, their oscilloscope is "too accurate" and reads higher than other sites. I think their problem is as they admit, if they only use 4 sample readings are way too high, so they decided to use 16 samples. But if you check out other trusted sites, they use 1k+ samples. And T/Div needs to be at 2ms and they have it at 2.5ms. Also, the ATX12V specification states that ripple and noise should be measured with a 0.1 µF ceramic capacitor and a 10 µF electrolytic capacitor attached to the oscilloscope probe but they never explained if they did that or not. I could be wrong and I don't know how much of a difference all of that will make, but I'm not to sure about their methodology.
Edited by shinji2k - 7/10/08 at 3:13pm
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
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Power Supplies
Overclock.net › Forums › Components › Power Supplies › Which 700-750W PSU?