The FormD T1 is a modular Mini-ITX case under 10L in volume. FormD comes in two variants, reference and sandwich kit. Case pricing starts at US$195 for sandwich kit and is available in multiple colours. Optional accessories, include the T1 Essential Pack and Fittings Pack. Check the FormD webstore for more info.
SPECIFICATIONS
| MODEL | FormD T1 v2.1 (Sandwich Kit) |
| OVERVIEW | T1 – Sandwich Kit allows for better graphics card compatibility & more build configurations vs. reference kit. |
| MATERIALS | 1.5~15mm CNC Aluminium (anodised) 1~2mm Steel (powder coated) |
| DIMENSIONS | 335×135×220mm (L×W×H) |
| VOLUME | 9.95 Litres |
| CASE I/O | Power Button, USB-C (USB-C cable sold separately) |
| MOTHERBOARD SUPPORT | Mini-ITX, Deep-ITX |
| COOLER COMPATIBILITY | 48mm max height with 3.25 slot GPU 53mm max height with 3 slot GPU 58mm max height with 2.75 slot GPU 63mm max height with 2.5 slot GPU 68mm max height with 2.25 slot GPU 73mm max height with 2 slot GPU 78mm max height with 1.75 slot GPU 83mm max height with 1.5 slot GPU 88mm max height with 1.25 slot GPU 93mm max height with 1 slot GPU |
| RISER CABLE | PCIe 4.0 X16 (185mm) |
| GRAPHHICS CARD COMPATIBILITY | GPUs no more than 140×325mm, 3.25-Slot thick. (graphics card thickness depends on CPU cooler clearance) |
| CASE FANS SUPPORTED | Top: 2x 120mm Side: 2x 120 / 140mm (based on components) |
| LIQUID COOLING SUPPORT | 1x 120 / 240mm 2x 240mm (requires side radiator bracket, sold separately) 240mm + 280mm (requires side radiator bracket, sold separately) Compatibility notes: dual radiator setups require a single slot GPU waterblock. Due to this limitation and build complexity, dual radiator builds are not recommended for inexperienced users. |
| POWER SUPPLY SUPPORT | SFX / SFX-L (SFX-L not recommended with liquid cooling, custom cables are a must) |
| CASE REVISIONS | – Two extra screw holes were added for v2.1 side fan + radiator bracket brace. This feature was added for dual radiator builds where the second radiator is mounted to the GPU side. – The power supply bracket mounting holes on this bar are now threaded. This allows the SFX bracket to install more securely. – The rear panel M19 holes are no longer threaded. – The GPU lock bars from v2.0 have been replaced with GPU lock brackets. These brackets allow for better GPU DisplayPort, HDMI clearance. |
FormD co-owners / designers 3FC & W360 have split operations, with each now operating their own respective websites. See the history of FormD.
BUILD #1
| MOTHERBOARD | Rog Strix B650E-I Gaming WiFi (paid link) |
| CPU | R7 7800X3D (paid link) |
| CPU COOLER | AXP90-X47 FC + NF-A9x14 HS (paid links) |
| GPU | RTX 4080 Super FE (paid link) |
| PSU | Extreme 850R / Corsair SF750 (paid links) |
| CABLES | Unsleeved (CableMod) |
| RAM | 32GB Gskill S5 DDR5, 6000MHz, CL30 (paid link) |
| STORAGE | 1TB + 2TB NVME (paid links) |
| CASE FANS | 2x NF-A12x25 chromax.Black (paid link) |
For a gaming focused build with 7800X3D. Air cooling is the best overall option in our opinion. There is less restriction on GPU and no GPU heat exchange with the CPU, unlike with a liquid cooling solution.
BUILD #2
| MOTHERBOARD | Rog Strix B650E-I Gaming WiFi (paid link) |
| CPU | R7 7800X3D (paid link) |
| CPU COOLER | CoolerMaster Atmos 240 (paid link) |
| GPU | RTX 4080 Super FE (paid link) |
| PSU | Extreme 850R / Corsair SF750 (paid links) |
| CABLES | Unsleeved (CableMod) |
| RAM | 32GB Gskill S5 DDR5, 6000MHz, CL30 (paid link) |
| STORAGE | 1TB + 2TB NVME (paid links) |
| CASE FANS | NF-A12x25 chromax.Black + NF-A12x15 chromax.Black (paid link) |
For those looking to use a more powerful CPU, such as 7950X3D or 13900K. AIO is recommended.
BUILD #3
| MOTHERBOARD | Rog Strix B760-I Gaming WiFi (paid link) |
| CPU | Intel I9 13900K (paid link) |
| CPU COOLER | Modultra LOBO + EK DDC 4.2 (paid link) |
| GPU | RTX 4080 Super FE (paid link) |
| PSU | Extreme 850R (paid link) |
| CABLES | Unsleeved Cables, 24pin (150mm), EPS (390mm), 12VHPWR (400mm) |
| RAM | 32GB Kingston FURY Renegade DDR5, 7600MHz, CL38 (paid link) |
| RADIATORS | Alphacool 240 ST20 HPE |
| FITTINGS & TUBING | – 4x FESTO NPQH-L-G14-Q8-P10, – 2x FESTO NPQH-DK-G14-Q8-P10, – 2x Alphacool 20mm Extention Fittings – 2x Alphacool Eiszapfen QDC kits – 2x Barrow 1.5mm Mini Spacer – 1M FESTO PUN-H-8X1,25-SW (197392) |
| STORAGE | 1TB + 2TB NVME (paid links) |
| CASE FANS | 2x NF-A12x25 chromax.Black (paid link) |
The DDC pump was set to 1800RPM as these have a tendency to produce a high-pitched whine at higher RPM’s. The pump is powered and controlled by an Aquacomputer Quadro. Radiator fans were set to fixed/max speed of 50%. We undervolted the 13900K by 0.07V and tested at 253W, 180W, and 125W. These are just our preferences, and you can adjust the voltage offsets and power targets based on silicon quality and your own preferences. We installed two DIY power buttons + FormD case handle at the rear and USB-C at the front of the case. Gaming thermals were near identical across all tested wattages. We tried air cooling our 13900K with AXP90-X47 FC at 125W and was fine for multicore hitting 30,000 points, we weren’t happy running near 100°C TJMAX during gaming due to Intel’s high power consumption.
BUILD #4
| MOTHERBOARD | Rog Strix B650E-I Gaming WiFi (paid link) |
| CPU | R7 7800X3D (paid link) |
| CPU COOLER | Modultra LOBO + EK DDC 4.2 (paid link) |
| GPU | Gigabyte RX 6900XT Gaming OC (paid link) |
| PSU | Extreme 850R / Corsair SF750 (paid links) |
| CABLES | SFF Cables by CableMod |
| RAM | 32GB Gskill S5 DDR5, 6000MHz, CL30 (paid link) |
| STORAGE | 1TB + 2TB NVME (paid links) |
| RADIATORS | Alphacool 240 ST20 HPE (paid link) |
| FITTINGS | – 5x FESTO NPQH-L-G14-Q8-P10, – 1x FESTO NPQH-DK-G14-Q8-P10, – 2x Alphacool 20mm Extention Fittings, – 1x Alphacool 10mm Extension Fitting (paid links) |
| REAR QDC ASSEMBLY | – 2x Alphacool Eiszapfen QDC kits – 2x Barrow G1/4″ 5-Way Ball Fitting – 4x Barrow G1/4″ Hex Blank – 2x EK-QT Micro Ext MM 7 – 1x Alphacool Check Valve – 2x Alphacool Double Nippel Rotary 1x Barrow 1.5mm Mini Spacer – Barrow G1/4 – 10k Temperature Sensor – 8x Alphacool Fitting O-Rings (included with Alphacool fittings) |
| TUBING | 2M FESTO PUN-H-8X1,25-SW (197392) |
| CASE FANS | 2x NF-A12x25 chromax.Black (paid link) |
We encountered a compatible issue between the T1 and our LOBO CPU waterblock. The LOBO mounting screws protruded too far through the motherboard backplate. This can pierce and damage the riser cable as it did with ours. Modultra has confirmed this issue with some earlier LOBO units and the current revision uses shorter mounting screws at 31.75mm. You’ll need a custom GPU side radiator bracket or cable ties when using rear QDC assemblies, due to clearance issues. FormD is working on a solution. We found zip-tying through the Noctua fans and around the case struts works very well in meantime.
BUILD #5
| MOTHERBOARD | Rog Strix B650E-I Gaming WiFi (paid link) |
| CPU | R7 7800X3D (paid link) |
| CPU COOLER | Modultra LOBO + EK DDC 4.2 (paid link) |
| GPU | Gigabyte RX 6900XT Gaming OC (paid link) |
| PSU | Extreme 850R / Corsair SF750 (paid links) |
| CABLES | SFF Cables by CableMod |
| RAM | 32GB Gskill S5 DDR5, 6000MHz, CL30 (paid link) |
| STORAGE | 1TB + 2TB NVME (paid links) |
| RADIATORS | Alphacool 240 ST20 HPE (paid link) |
| FITTINGS | 6x EK-QT Micro Rotary 90, 6x EK-Torque STC-10/13, 4x EK-QT Extender 14, 2x Alphacool Eiszapfen QDC kits (paid links) |
| TUBING | Mayhems 13/10 Soft Tubing (paid links) |
| CASE FANS | 2x NF-A12x25 chromax.Black (paid link) |
CONCLUSIONS
FormD T1 is widely considered one of the best small ITX cases and certainly one of the most popular. The case provides satisfying build experience and multiple configurations, such as air cooling, AIO and custom liquid cooling.
For those looking to take on custom liquid cooling, you should look towards Festo 8mm pneumatic fittings: NPQH-DK-G14-Q8-P10 (578377), NPQH-L-G14-Q8-P10 (578284), with 8mm tubing: PUN-H-8X1,25-SW (197392). Spacers may be required to reduce the fitting thread length for some hardware (radiator, CPU block etc), we suggest using Barrow’s 1.5mm mini spacers.