Swiftech Microdrive 320 Revison 2 - B model (without pump)

Introduction

Following the initial introduction of the patent pending MCR Drive™ series of integrated radiator and pump heat exchangers, Revision 2 takes these revolutionary products to yet another level of functionality and performance with two major improvements:

• While the radiators in the initial release were only fully functional in vertical orientation, they are now fully functional in both vertical and horizontal orientations thanks to a new reservoir design; this adds the much sought after top-of-the case installation to the range of configurations;
• The inclusion of Swiftech's new PWM motherboard-controlled MCP35X pump, which can operate at variable speed from 1300rpm to 4500 rpm, compared to a fixed speed of 3500 rpm in the earlier version; this new functionality allows users to fully tune the product to their needs and/or preferences, from virtually silent operations at low speed, to ultra high flow at maximum speed for optimum performance with multiple water-blocks and/or radiators in the cooling loop.

The MCR Drive™ heat exchangers are available in two versions: dual 120mm, and triple 120mm, and in two configurations each, with or without the pump.

They are also available in complete kits: the H20 X20 Edge series of liquid cooling kits.

Summary of Features and Benefits

Performance

Performance curves of the radiators are similar to their respective non-integrated counterparts (MCRX20 QP series). However, overall system pressure drop is noticeably improved compared to a traditional setup comprising a separate pump and reservoir due to a substantial reduction in the length of the flow path, as well as in the number of fittings (2 fittings instead of 6).

For real-life performance data, you may also refer to a couple of related articles that we recently published entitled "Actual Influence of Flow Rate on system Temperatures" and "Dual Loop versus Single, the Facts". These articles contain comprehensive information with respect to the thermal performance that can be expected from these heat exchangers when coupled with other Swiftech components such as the Apogee XT.

Here is a summarized table of results; these tests were performed with Ci7 920 overclocked to 4.1Ghz and running at 1.39v; please also refer to the articles linked above for full configuration details, results and explanations.

Links to individual performance curves and specifications:

• MCR220 QP Radiator
• MCR320 QP Radiator

MCP35X PWM response:

The PWM response curve exhibits the following characteristics:

• From 0 to 12%, the pump will run at ~1300 rpm (+/- 100)
• From 13% to 69%, the rpm will climb progressively
• From 70 to 100% the pump will run at full speed ~4500 rpm (+/- 100)
• If not connected to the motherboard, the pump will run at maximum speed by default.

Installation (orientation) guidelines

Case Compatibility Link

Here are some examples of typical installation (click on the picture to enlarge)

Some examples of internal installations
H20-220 Edge Front installation	H20-320 Edge Top Installation, SLI
H20-220 Edge with additional MCR320 QP radiator, SLI	H20-320 Edge + H20-220 Edge for full redundancy
Some examples of external installations
H20-220 Edge + Radbox, 1/2" tubing thru pre-existing holes	H20-320 Edge + Radbox, 3/8" tubing thru PCI slot

• General Installation guidelines (also see installation guide):

Click on picture to enlarge

• Installation strategies to a computer panel (also see installation guide):

Case compatibility for internal installation

We scouted the web and various forums to identify cases that are compatible for preferably "bolt-on" internal installation, or with very minor modifications; we also contacted various case manufacturers and enquired which of their models would be compatible. Here is a compilation of what we found at the time of this publication; please note that the (*) next to the listed models indicates that they were either validated by us, or listed as compatible by their respective manufacturers. We do not guarantee the accuracy of the provided information for models that we have not validated in house.

Specifications

DIMENSIONS including pump (Click to zoom in)
MCR220 Drive™	MCR320 Drive™

Overall Dimensions, Including pump	MCR220 Drive™	MCR320 Drive™
Width	5.0"(128mm)
Height	12.1"(309mm)	16.9"(429mm)
Thickness	2.9"(74mm)
Weight	36.5oz(1079g)	42oz(1242g)

Performance curves:

• MCR220-QP radiator see complete specifications HERE
• MCR320-QP radiator see complete specifications HERE
• MCP35X pump, also see complete specifications HERE

Radiator general construction

• 2-pass, single row construction
• Brass body and tubes, louvered copper fins
• Brass pump housing
• Optimized fin-density for maximum heat dissipation at low
  noise
• Patent-pending integrated pump housing
• M3.5 threaded fan and case-mounting holes
• Slim form factor 11.2 x 5 x 1.3" (284 x 128 x 34mm)
• G1/4 threaded ports
• High-durability acrylic paint finish
• ROHS compliant

MCP35X Pump specifications summary

Availability: Usually ships the same business day

MCR320-DRIVE-B$144.95 Qty:

Choose your fittings: No Fittingsx2 XSPC 1/2in. ID Barb (+3.75)x2 Swiftech High Flow 1/4 BSPP to 3/8in. ID Barb (+4.00)x2 Swiftech High Flow 1/4 BSPP to 1/2in. ID Barb (+4.00)x2 DTek High Flow 1/4 BSPP to 3/8. ID Barb (+4.00)x2 DTek High Flow 1/4 BSPP to 1/2. ID Barb (+4.00)x2 Bitspower G1/4 Silver Shining 3/8 Fitting ID 8.5 MM (+4.00)x2 Bitspower G1/4 Silver Shining 1/2 Fitting ID 12 MM (+4.00)x2 Bitspower 3/8in. Compression Fittings for 1/2in. OD Tubing (+13.00)x2 Bitspower 3/8in. Compression Fittings for 5/8in. OD Tubing (+13.00)x2 Bitspower 1/2in. Compression Fittings for 5/8in. OD Tubing (+13.00)x2 Bitspower 1/2in. Compression Fittings for 3/4in. OD Tubing (+13.00)
  

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