Chassis, Fans and Radiator
The PC4-1025 liquid cooling system ships in the original PC-V1000 container. The radiator, fans, and 5.25′ bay unit are all pre-installed along with the main sections of tubing.
- PC4-1025BK enclosure (Lian Li PC-V1000)
- PC-V1000 accessory kit (screws, stand-offs, fan cable adapter, wire ties, etc.)
- Radiator/fan assembly (integrated)
- 5.25′ Bay unit: pump, reservoir, controller, display (installed)
- 3/8′ ID Tubing (3 sections, pre-installed)
- 1/4′ ID Tubing: (6′ for adding multiple cooling blocks)
- 3/8′ to 1/4″ Flow splitter (2)
- Koolance — Computer Liquid Coolant (700 ml)
- Printed User’s Manual
As we mentioned earlier, the PC4-1025 does not come with any waterblocks. Individual coolers must be purchased separately depending on the end user’s hardware configuration and needs (CPU, GPU, HDD, etc). Koolance offers one of the largest selections of liquid cooling accessories on the market.
Aluminum, Mid-Tower Enclosure
The PC4-1025 enclosure is a standard Lian Li PC-V1000 that has been modified to allow mounting a full length radiator and fan assembly neatly into the top. Koolance did an excellent job with the integration; the fit and finish is very good and it gives the impression of an original design rather than retrofit. For a more detailed look at the Lian Li V1000, you can find Bob’s previous review here.
The PC-V1000 provides excellent case cooling and for the most part is a pleasure to work with. The only potential disadvantage that comes to mind is that because the PC-V1000 is a compartmentalized, mid-tower enclosure, it can get rather cramped inside, especially in the motherboard area. Here are a few pictures of this elegant case if you’ve forgotten just how nice it looks.
Koolance includes the optional side panel window with the enclosure to show off all the internal goodies, once the system is assembled.
The Koolance PC4-1025 comes with five 120mm fans. Two are the standard Adda case fans (AD1212LB-A73GL) that are installed into the front and rear of the PC-V1000 enclosure. These fans incorporate dual ball bearings and are rated for up to 72 CFM and 34.4 dBA at 1,800 RPM.
The three Koolance labeled fans have 7 blades and are protected by nicely integrated wire fan guards. They draw cool room air in from the top and blow air down thru the radiator into the enclosure. The speed of the three radiator fans can be controlled automatically based on an assigned temperature input or adjusted manually for maximum flexibility in balancing performance and noise.
- Model number: RDH1225B
- Frame size: 120mm x 120mm x 25mm
- Nominal voltage: 12 VDC
- Fan speed: 720 to 2,400 RPM
- Total airflow: 74 to 250 CFM (3 fans combined)
- Bearings: Double ball
The PC4-1025 radiator/fan assembly can be easily removed from the PC-V1000 chassis by first removing the eight screws that hold it in place and then lifting the assembly up and out. You may in fact want to do this (as I did) during the initial installation of your motherboard as it can be a little tight working inside the PC-V1000 enclosure, especially if you are configuring a dual video card system.
The aluminum radiator measures approximately 5.25′ x 15.75′ x .75′ and incorporates 16 horizontal flow tubes, which connect the cylindrical head tanks in a two pass configuration. The large radiator (along with more airflow from the three 120mm fans) contributes significantly to the increased heat load capacity of the PC4-1000 series liquid cooling systems.
Both of the 3/8′ ID tubing connectors are at the back of the radiator and use short barbs with compression fittings for secure, leak-free connections. Since the radiator is aluminum, it is very important to always use a coolant additive (Koolance coolant is recommended) to prevent corrosion.