We went all out by custom water cooling the new Intel Core-i9 9900K paired with an Nvidia GeForce RTX 2080 Ti for our latest build guide featuring the In Win 303C case in white. Complete with two 360mm radiators, we filled out the 303C and pushed its cooling capacity to the limits by overclocking both the CPU and GPU. If that wasn’t enough, we utilized hardline PETG tubing in our most ambitious project yet. Without further ado, here is our Hardline RGB Madness build!
The In Win 303C is very similar in design to the 101C and 301, sharing the steel body, plastic feet and minimal design. The design works very well and quality wise, the 303C is a great value for the money. The primary side panel is made of tempered glass and can be removed by releasing the latch at the top.
Upon removing the tempered glass side panel, we see the generous 360mm radiator mount at the top. There is also space on the bottom for an additional 360mm radiator. There are two 2.5” SSD/hard drive mounts on the motherboard tray. There are also several cable cutouts for cable routing. Additionally, there is space to mount a water cooling pump or reservoir using the back tray.
The front is effectively minimal, we really like the look here. There is of course a power button, a reset button, two USB 3.0 ports, headphone and microphone jacks and a USB 3.1 Gen 2 Type-C port. The In Win logo is RGB based as are the front I/O ports, they all light up and look quite stunning in the dark.
The back is relatively simple. Like the 101C and 301, the power supply is located up top however it is installed on its side in the 303C. The regular I/O area as well as the ventilated PCIe slot covers can be seen. There is a 120mm fan mount.
The secondary side panel is made of steel and has the attractive honeycomb pattern In Win has implemented on several of their cases. The side panel is secured via two thumbscrews at the top.
After removing the rear side panel, we can see the top section which has plenty of room for power supply cables, fan cables and fan/RGB lighting hubs. There are also two 3.5” hard drive mounts present on the backside of the motherboard tray for those still attached to their platter-based storage.
Before we begin, here is our parts list:
We began by installing our Intel Core i9-9900K into the ASUS Maximus XI Hero motherboard. Next, we added our M.2 based storage drives, a 1TB WD Black NVMe and a 2TB WD Blue.
The last step before installing the motherboard in the 303C was to add the 32GB of Corsair Vengeance RGB Pro RAM.
Here is the Maximus XI Hero in the 303C, it fills the case out quite nicely with plenty of room left for the water cooling gear to come.
Here is our water cooling parts list:
Before going any further, we needed to prepare our ASUS RTX 2080 Ti Dual OC for water cooling by removing its heatsink. There are several screws on the backplate that must be removed prior to heatsink removal.
After removing the heatsink, we cleaned the existing thermal paste off. We added some new Thermal Grizzly Kryonaut thermal paste. Then we measured, cut and applied thermal pads to the VRM components: VRAM, drivers, MOSFETs and COILs.
Here is the EK-Vector RTX 2080 Ti RGB – Nickel + Plexi water block installed on the ASUS RTX 2080 Ti Dual OC. Very easy to install.
In order to mount the CPU water block, we needed to align the rubber gasket and backplate.
Next, we covered our i9 9900K with the EK-Supremacy EVO RGB – Nickel water block. We also installed our RTX 2080 Ti with the EK Vector RGB water block.
Starting to run some cables to the CPU and GPU. Cable ties and velcro cable strips are very useful in maintaining tidy cable management in a case like the 303C where there are no dedicated cable management covers to hide wires.
The CableMod ModMesh black/blue custom sleeved cables look fantastic in person! We also started to route the cable for the Thermaltake Pacific TF1 temperature/flow sensor.
We installed the EK-XRES 140 Revo D5 PWM pump/reservoir combo unit on the right side. Note, installation required the removal of the bottom 2.5” SSD mounting bracket.
Next, we installed one of our Alphacool NexXxoS ST30 Full Copper X-Flow 360mm radiators on the top mount. Here it is, complete with three Corsair LL120 RGB fans.
Second Alphacool NexXxoS ST30 360mm installed with fans and our drain valve which pokes through the rear PCIe slot area. It’s starting to get crowded in here!
Our first bend between the back port on the bottom radiator and the GPU block proved to be very difficult and required the use of a 90-degree fitting.
For our second bend, we tackled the CPU block to the temperature/flow indicator. We also connected the sensor to the top radiator.
Next, we added the tube between the pump/res combo and the bottom radiator. Simple and clean.
Then we connected the CPU block to the pump/res combo. Another 90-degree fitting was used between these components.
Lastly, we connected the top radiator to the GPU, again a 90-degree fitting was used.
Filling the loop. We are adding liquid through the reservoir and turning the pump on and off to cycle fluid through the blocks and radiators.
All filled up.
Resouces: Performance Computer
(Note: It's Here! 303C Now On Sale:https://estore.in-win.com/us/en/search-result/2?keyword=303C)
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