Alphacool is announcing today the next evolution in pump technology with the VPP755 Eispump. Built completely from the ground-up, this new pump design throws out all the old problems with the well-known D5 pumps and retains only the compatibility to all current D5 tops and brackets. The VPP755 Eispump dispenses with the spherical bearing, and opts instead for a ceramic shaft that allows for quieter operation. The motor’s coils are now on the outside instead of inside. According to Alphacool, all of these innovations provide more stability, which results in less vibration. It also means the power consumption is cut nearly in half. Yet the VPP755 Eispump still boasts a 4m maximum head for higher performance. The VPP755 Eispump is also distinctly quieter than the classic, well-known D5 pump while providing the same performance.
One of the innovations of the VPP755 Eispump is its many control options. The 4-pin molex connection provides the power, and plugs directly into the power supply. If desired, the 3-pin connection can be used to read the pump’s RPM. This can be connected to the corresponding motherboard header or to a fan controller. The VPP755 Eispump also includes a 4-pin PWM connection, from which the pump can be controlled by PWM as usual, with the RPM also being readable through this connection.
On the backside of the pump there is a small rotary switch, which has 5 levels for manually controlling the pump. The unique thing here is that the manual control and PWM control can now work together – a system patented by Alphacool. Using the rotary switch, the general maximum RPM for the pump can be set, which then cannot be exceeded by the PWM control. Practically, this means that if the pump is set to level 3 with a maximum RPM of 3200, you can also only reach a maximum RPM of 3200 through the PWM control, allowing for true user-set cooling and noise levels.
The company has also released a specifications list, which you can read below:
Dimensions (DxH): 60 x 53,5mm
Cable length: 50cm
Standard voltage: 12V DC
Power consumption: 14W
Accepted voltage: 8-13v DC
Pressure at 12V: 4m head
Maximum flow: 350l/h
Pump fluid: water, water/glycol mixture
Maximum system temperature: 65°C
Power connection: 4-pin Molex
Speed sensor signal: 3-pin
PWM signal: 4-pin
Special features: adjustable to five levels
Level 1: 1800 RPM
Level 2: 2500 RPM
Level 3: 3200 RPM
Level 4: 3900 RPM
Level 5: 4500 RPM
The VPP755 Eispump is now available for $70.