Overclock.net › Forums › Cooling › Water Cooling › d5 pump question
New Posts  All Forums:Forum Nav:

d5 pump question

post #1 of 5
Thread Starter 
i've been seeing pump tops on frozen/performance, what exactly do they do? and are they even worth buying?
they're rather expensive, and considering i've never really heard of them until now, i didn't think they were exactly a big deal.
i have a laing d5 vario, so if a pump top drastically improves performance, which should i think about purchasing?
Switch
(15 items)
 
  
CPUMotherboardRAMHard Drive
i7 3770K ASUS Maximus V Formula MSI 7970 Samsung 830 128GB SSD 
Hard DriveCoolingCoolingCooling
Seagate 2TB Storage Koolance 380i CPU Block DangerDen 7970 Full Copper Block Laing D5 Vario Pump 
OSMonitorKeyboardPower
Windows 7 x64 Samsung S23A750 Das Ultimate Corsair AX750 
CaseMouseAudio
NZXT Switch 810 Razer Mamba Audeze LCD-2 Headphones 
  hide details  
Reply
Switch
(15 items)
 
  
CPUMotherboardRAMHard Drive
i7 3770K ASUS Maximus V Formula MSI 7970 Samsung 830 128GB SSD 
Hard DriveCoolingCoolingCooling
Seagate 2TB Storage Koolance 380i CPU Block DangerDen 7970 Full Copper Block Laing D5 Vario Pump 
OSMonitorKeyboardPower
Windows 7 x64 Samsung S23A750 Das Ultimate Corsair AX750 
CaseMouseAudio
NZXT Switch 810 Razer Mamba Audeze LCD-2 Headphones 
  hide details  
Reply
post #2 of 5
For the D5, performance is usually much the same. The main benefit to pump tops is having the ability to use your own barbs and for looks. There is also sometimes a benefit in noise if made from thick acetal because the soft and thick acetal does help reduce vibration and also covers up the motor noise a bit.

Performance wise, very few D5 aftermarket tops do much better than the factory top, and many actually perform worse if you use alternative inlet that introduce an elbow into the inlet.

The factory Laing D5 top has a pretty good design with the inlet being a nice straight shot into the impeller. The Laing DDC however does not with a sharp 90 degree bend at the inlet. Bends near a pump inlet are bad because that disturb the flow where it is critically loading the pump impeller and you end up with part of the impeller not working to it's greatest efficiency.

DDC pump tops however DO very much improve performance mainly because they remove the inlet bend, but also because they reduce restriction and some have really good spiral shapes in the volute that promotes even impeller flow. The factory DDC tops also are 3/8" cast, so you really need a top to run larger tubing.

Bottom line, performance is much the same with D5s, but it is quite a bit better with DDCs. Benefits remaining are barb compatibility, aesthetics, and minor noise improvements.
    
CPUMotherboardGraphicsRAM
3930K ASrock X79 Ext7 Evga GTX570 CORSAIR Vengeance 16GB 
Hard DriveOptical DriveOSMonitor
Phoenix SSD+2TB Seagate drives ASUS DVD-RW combo Windows 7 28" Hanns-G HZ281 
KeyboardPowerCaseMouse
MS Natural Corsair TX650 Danger Den Torture Rack Logitech MX518 
Mouse Pad
Desk 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
3930K ASrock X79 Ext7 Evga GTX570 CORSAIR Vengeance 16GB 
Hard DriveOptical DriveOSMonitor
Phoenix SSD+2TB Seagate drives ASUS DVD-RW combo Windows 7 28" Hanns-G HZ281 
KeyboardPowerCaseMouse
MS Natural Corsair TX650 Danger Den Torture Rack Logitech MX518 
Mouse Pad
Desk 
  hide details  
Reply
post #3 of 5
They can improve head pressure and give options with the G1/4 ports. You could also argue they "look" better but aesthetics are very opinionated. There is a sticky in the water cooling that somewhat shows the difference.

http://www.overclock.net/t/1108918/what-can-my-pump-handle-a-guide
See Pee Yoo
(17 items)
 
Lian Mi
(12 items)
 
Craptop
(5 items)
 
CPUMotherboardGraphicsRAM
2500k asrock extreme4 980ti corsair vengeance  
Hard DriveHard DriveOptical DriveCooling
Crucial m3 seagate green lg dvdrw Noctua D14 
OSMonitorMonitorPower
win 7 64bit 2 x 1920 x 1080p (ASUS and LG) xl2420te ocz zx 1000w 
CaseMouseMouse PadAudio
haf bx g600 / / Roccat Savu Puretrak Talent Soundblaster Z 
Audio
sennheiser hd558 
CPUMotherboardRAMHard Drive
celereon g1610 g1 sniper m3 parema seagate barracuda 
Optical DriveOSMonitorPower
dvdrw windows vista vizio 3d tv rosewill green 530 
CaseMouse
lian li pc v354b logitech g300 
CPUGraphicsHard DriveOS
4810MQ GTX 870M samsung evo  Windows 8.1 
Other
Sager 8728 
  hide details  
Reply
See Pee Yoo
(17 items)
 
Lian Mi
(12 items)
 
Craptop
(5 items)
 
CPUMotherboardGraphicsRAM
2500k asrock extreme4 980ti corsair vengeance  
Hard DriveHard DriveOptical DriveCooling
Crucial m3 seagate green lg dvdrw Noctua D14 
OSMonitorMonitorPower
win 7 64bit 2 x 1920 x 1080p (ASUS and LG) xl2420te ocz zx 1000w 
CaseMouseMouse PadAudio
haf bx g600 / / Roccat Savu Puretrak Talent Soundblaster Z 
Audio
sennheiser hd558 
CPUMotherboardRAMHard Drive
celereon g1610 g1 sniper m3 parema seagate barracuda 
Optical DriveOSMonitorPower
dvdrw windows vista vizio 3d tv rosewill green 530 
CaseMouse
lian li pc v354b logitech g300 
CPUGraphicsHard DriveOS
4810MQ GTX 870M samsung evo  Windows 8.1 
Other
Sager 8728 
  hide details  
Reply
post #4 of 5
And some can make it worse, here is skinnees old D5 data:
http://skinneelabs.com/assets/images/Pumps/D5/D5-5_PerfChart.jpg

These are extremely small differences though, really not much improvement over the factory top. Considering most systems have pressure drop curves that would cross in the 1-1.5GPM range, you are probably looking typically at changes of maybe .1GPM which would never translate into a noteworthy and measurable temperature change.
Edited by Martinm210 - 12/5/12 at 10:54am
    
CPUMotherboardGraphicsRAM
3930K ASrock X79 Ext7 Evga GTX570 CORSAIR Vengeance 16GB 
Hard DriveOptical DriveOSMonitor
Phoenix SSD+2TB Seagate drives ASUS DVD-RW combo Windows 7 28" Hanns-G HZ281 
KeyboardPowerCaseMouse
MS Natural Corsair TX650 Danger Den Torture Rack Logitech MX518 
Mouse Pad
Desk 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
3930K ASrock X79 Ext7 Evga GTX570 CORSAIR Vengeance 16GB 
Hard DriveOptical DriveOSMonitor
Phoenix SSD+2TB Seagate drives ASUS DVD-RW combo Windows 7 28" Hanns-G HZ281 
KeyboardPowerCaseMouse
MS Natural Corsair TX650 Danger Den Torture Rack Logitech MX518 
Mouse Pad
Desk 
  hide details  
Reply
post #5 of 5
Thread Starter 
Awesome, thanks so much guys, saved me an extra 50-60$ on a top tongue.gif
Switch
(15 items)
 
  
CPUMotherboardRAMHard Drive
i7 3770K ASUS Maximus V Formula MSI 7970 Samsung 830 128GB SSD 
Hard DriveCoolingCoolingCooling
Seagate 2TB Storage Koolance 380i CPU Block DangerDen 7970 Full Copper Block Laing D5 Vario Pump 
OSMonitorKeyboardPower
Windows 7 x64 Samsung S23A750 Das Ultimate Corsair AX750 
CaseMouseAudio
NZXT Switch 810 Razer Mamba Audeze LCD-2 Headphones 
  hide details  
Reply
Switch
(15 items)
 
  
CPUMotherboardRAMHard Drive
i7 3770K ASUS Maximus V Formula MSI 7970 Samsung 830 128GB SSD 
Hard DriveCoolingCoolingCooling
Seagate 2TB Storage Koolance 380i CPU Block DangerDen 7970 Full Copper Block Laing D5 Vario Pump 
OSMonitorKeyboardPower
Windows 7 x64 Samsung S23A750 Das Ultimate Corsair AX750 
CaseMouseAudio
NZXT Switch 810 Razer Mamba Audeze LCD-2 Headphones 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Water Cooling
Overclock.net › Forums › Cooling › Water Cooling › d5 pump question