Posts Tagged ‘Drive’

Welcome to my “living” review/preview of the Swiftech MCP 655-PWM DRIVE. What do you get when you couple our most reliable, most silent, and most cool running pump with PWM technology?

A Swiftech MCP 655 PWM-DRIVE!

I have been using D5 variants for about 5 years now and have always admired them as probably being the most tried and true pump out there serving many systems for 5 years + and going strong.

Swiftech-MCP-655-PWM-Drive0

However, I have also recently come to admire having PWM control over pumps such as the Swiftech MCP-35X in which I was able to automatically speed up and slow down the pump to meet thermal demands. PWM is also of value for special reservoir tops and other cramped installations where manually getting to the pump speed control is difficult after installation.

With the added PWM features, you no longer need to touch the pump physically to change speeds and you now have the flexibility to control it manually or automatically through a variety of PWM controlling software.

A special thanks to Mark from Frozen CPU for sponsoring the pump used in this review.

frozencpu_logo

Manufacturer Description & Specifications

http://www.frozencpu.com/products/17549/ex-pmp-214/Swiftech_MCP655-PWM_12v_Water_Pump_Module_-_PWM_Enabled_Single_Version.html

In response to the overwhelming demand and popularity of the MCP655 Series FrozenCPU.com has worked with Swiftech to bring you a more versatile version. Want your pump to run as quiet as possible? Now you can have that as well as the available power of the MCP655 in the all new MCP655-PWM. That is right, a PWM version on the MCP655!!

The MCP655 pump is a high reliability, high pressure industrial pump, featuring a 50,000 hour MTBF (5 year lifetime). Such reliability is afforded by the unique design of this pump, which contains only one moving part: the magnetically driven spherical impeller spins on a single ceramic bearing, thus extending the life of this pump beyond existing standards.

The pump is completely plug-and-play, and connects directly to any computer power-supply through standard 4 pin power connectors and a PWM 4-Pin header. It’s compact design, quiet and powerful motor make it ideally suited for heavy duty cooling in environments where space is at a premium.

This pump comes stock without any housing allowing you to integrate any of your favorite pump tops and pump accessories.

  • 50,000 hours MTBF (Mean Time Between Failure) equivalent to 5 years lifetime
  • Superior 12 Volts DC convenience: plugs into the computer power supply
  • The MCP655-PWM can be used with full confidence in any MP servers, and high-end workstations
  • Superior real world performance versus any aquarium pump we have tested to this date
  • The high pressure capability of the MCP655-PWM is particularly well adapted to high-flow systems using 1/2″ ID or 3/8″ ID Tubing
  • Compact Design
  • No maintenance when used with de-mineralized water, and anti-fungal additives (Swiftech HydrX additive is recommended)
Nominal voltage: 12 V DC
Operating voltage range: 8 to 24 VDC
Nominal power (@ 12 V): 37 W Max
Nominal current (@ 12 V): 2 amps
Motor type: Brushless, microprocessor controlled
Maximum head: 13 ft (4 m)
Maximum discharge: ~ 317 GPH (1200 LPH)
Performance will vary based on housing used

So, the hydraulic specs appear to be the same as the MCP 655, however there are some minor differences in the nominal power rating of 37W and operating voltage. The 13ft of maximum head is right in line with what I have measured myself with other D5 variants, but power consumption for my test bench has typically toped out around 21 watts or so depending on restriction.

We’ll have to put it through the ringer of tests and see how it compares. Perhaps there are some differences in RPM scaling over the vario model and perhaps the PWM feature allows a greater range of RPM operation.

Welcome to another bay reservoir review, the Koolance RP-401X2.  I thought the RP-402×2 was compact for two pumps in a double drive bay size, but this model takes that concept up another notch.  The PMP-400 (DDC3.25) pump motors are very compact and Koolance figured out a way to put not only one, but two motors in a single drive bay reservoir that retains much of the same multitude of options as the 402×2 flavor. You can run one pump only and share both reservoirs, you can run two pumps in separate loops, or you can combine the two pumps via their serial kit for extreme pumping power.

A special thanks to Tim from Koolance for sending over the sample to review.

Packaging & Accessories

First let’s have a look at the box opening:

It comes in a longer brown box as shown here with solid foam protection along the sides

Having done a few drive bay reservoir reviews, it should be noted that not all come fully assembled.  The Koolance RP-401×2 is of the fully assembled and ready for pump status types.  It also has a block off plate installed on the left (P2) side and plugs ready for a single pump installation.  This keeps the number of loose parts down to a bare minimum and should save some time up from on the assembly front.

No major assembly required, ready for single pump right out of the box

It does also come with what I would call a quick guide.  It’s a smaller double-sided black and white four page guide.  Don’t expect a ton of detail here, but the guide is well illustrated and covers the key installation areas well although I would have liked to see some added info on bleeding. You can download the electronic and color version of the manual here for a more detailed look.

In general the package was very complete short of barbs and the serial kit.  Those items will have to be purchased separately and are an added cost.  The reservoir/top does come fully assembled with the necessary port plugs and pump block off so you can run one or two pumps as desired and there isn’t any assembly needed which is also nice.  The Packaging and protection also seems good and arrived in good condition.