CTE C750 Air - PC Case THERMALTAKE - Free user manual and instructions

Product Type	PC Case
Brand	Thermaltake
Model	CTE C750 Air
Color	White (Snow) / Black
Material	Steel, Tempered Glass
Dimensions (L x W x H)	500 x 240 x 500 mm
Net Weight	~10.5 kg
Motherboard Support	ATX, Micro-ATX, Mini-ITX
Expansion Slots	7
Drive Bays	2x 3.5", 2x 2.5"
PSU Support	ATX (up to 220mm)
CPU Cooler Clearance	Up to 180 mm
GPU Clearance	Up to 400 mm
Fan Support	14x 140mm or 11x 120mm (depending on configuration)
Radiator Support	Front: up to 420mm; Top: up to 360mm; Rear: up to 140mm
Included Fans	None (sold separately)
Dust Filters	Front, Top, Bottom
I/O Ports	2x USB 3.0, 1x USB Type-C, Audio/Mic
Special Features	Dual chamber design, high airflow mesh panels

Frequently Asked Questions - CTE C750 Air THERMALTAKE

What motherboard form factors does the CTE C750 Air support?

The case supports ATX, Micro-ATX, and Mini-ITX motherboards.

How many fans can be installed in this case?

Up to 14 fans (all 140mm) can be installed: 3 front, 2 top, 3 rear, 3 bottom, and 3 on the AIO radiator.

What is the maximum GPU length supported?

It supports GPUs up to 400mm long, making it compatible with high-end cards like the RTX 4090.

Can I install a 420mm radiator?

Yes, the case supports radiators up to 420mm at the front, and up to 360mm at the top.

How is the cooling performance?

Thermal testing shows excellent performance: with an Intel i9-13900K and RTX 4090, CPU max was 82°C and GPU max was 75°C under full load with 14 fans.

How loud is the case at different fan speeds?

Acoustic tests recorded: 37.7 dBA at 600 rpm, 38.2 dBA at 800 rpm, 40.3 dBA at 1000 rpm, and 55.1 dBA at 1800 rpm (measured 50cm away).

Does the case have dust filters?

Yes, dust filters are included for the front, top, and bottom intakes.

What type of PSU does it support?

It supports a standard ATX power supply up to 220mm in length.

Does it have a tempered glass panel?

Yes, the case features a tempered glass side panel to showcase components.

What is the weight of the case?

The net weight is approximately 10.5 kg.

USER MANUAL CTE C750 Air THERMALTAKE

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System Thermal Test Report

Model: CTE C750 Air

Version: 20230328A

NO: RS202303280001

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Table of Contents

A. Introduction

B. Test Configuration

C. Conclusion

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A. Introduction

1. Objective
2. Equipment
3. Procedure

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1. Objective

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Our objective is to find out if the CTE C750 Air can efficiently extract the heat generated by the latest components, so we built a system with an Intel i9-13900K and a ASUS ROG Strix GeForce RTX® 4090 OC and put it to the test. The passing criteria we set was to keep the internal temperature under 40^ while the system is running at full load, with fourteen installed fans and a AIO 420 installed.

NO: RS202303280001

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2. Equipment

The equipment we used in the thermal testing includes:

1. Temperature & Humidity Chamber
2. Data Acquisition Device
3. Thermocouple

The Temp. & Humidity Chamber ensures consistency in the testing environment, particularly temperature and humidity. The temperature was set at 25^ C and the humidity at 50% in the chamber.

The Data Acquisition Device helps us to directly collect the data through thermocouples, which is the most important equipment for our testing. We set up the thermocouple inside the case at various points to measure the temperature.

We used AIDA64 Extreme and FurMark ROG Edition to push 100% load on the CPU and GPU and tested for 30 minutes.

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3. Procedure

Testing steps:

1. Ready the systems
2. Place the chassis into the Temp. & Humidity Chamber
3. Set the thermocouple at the specified places
4. Set up the Temp. & Humidity Chamber - temperature at 25 °C and the humidity at 50%
5. Turn on the Temp. & Humidity Chamber and start testing (for 30 minutes)
6. Check the data acquired from the Data Acquisition device
7. End testing

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B. Test Configuration

1. Laboratory Equipment
2. Chassis Hardware List
3. Chassis Fan Allocation
4. Chassis Thermal Airflow
5. Chassis Measured Points
6. Thermal Stress Test
7. AIDA64 & FurMark Test
8. Graphics Performance Testing
9. Acoustic Test

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1. Laboratory Equipment

Four colored thermocouple sensors (purple, blue, black, yellow) arranged on metal rods, no text or symbols visible.

Thermocouple

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Sound Level Meter

Black digital camera with thermal screen and display case (no visible text or symbols)

Thermal Imaging Camera

Temperature & Humidity Chamber Temperature

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2. Chassis Hardware List

Component	Model
Chassis	CTE C750 Air Snow
Motherboard	ASUS ROG MAXIMUS Z790 APEX
CPU	Intel® CoreTM i9-13900K Processor (TDP 253W)
GPU	ASUS ROG Strix GeForce RTX® 4090 OC 24GB GDDR6X
RAM	TOUGHRAM XG RGB DDR5 32G (16G x 2)
SSD	Seagate SSD 120G
PSU	Toughpower GF3 1200W - TT Premium Edition
CPU Cooler	TH420 ARGB Sync Snow Edition AIO Liquid Cooler
Fans	AIO: CT 140mm x 3 (1800rpm)Chassis: CT 140mm x 11 (1500 rpm)(Front x 3 , Top x 2 , Rear x 3, Bottom x 3 )
Software	1. AIDA64 Extreme2. FurMark ROG Edition V0.8.14.03. CPU-Z Ver.2.015 x644. Core Temp V1.18
Full load	30 minutes
Camera	Testo 885-2 Thermal Imaging Camera

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3. Chassis Fan Allocation

4. Chassis Thermal Airflow

Cool Airflow Inlets

Hot Airflow Exhausts

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5. Chassis Measured Points

Measure Point	Description	Airflow	Thermocouple Number
1	Chassis Front External	Intake	101
2	Chassis Front Internal	Intake	102
3	GPU Left Fan	Intake	104
4	GPU Right Fan	Exhaust	105
5	Chassis Rear Internal	Intake	106
6	Chassis Rear External	Intake	108
7	PSU Bottom	Intake	110
8	PSU Rear	Exhaust	111
9	AIO Top Cover		112
10	Chassis Bottom External	Intake	113
11	Chassis Bottom Internal	Intake	114
12	Chassis Top Internal	Exhaust	115
13	Chassis Top External	Exhaust	116
14	Chassis Right Internal	Exhaust	117
15	Chassis Right External	Exhaust	118

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5. Chassis Measured Points

Measure Point	Description	Airflow	Thermocouple Number
1	Chassis Front External	Intake	101
2	Chassis Front Internal	Intake	102
3	GPU Left Fan	Intake	104
4	GPU Right Fan	Exhaust	105
5	Chassis Rear Internal	Intake	106
6	Chassis Rear External	Intake	108
7	PSU Bottom	Intake	110
8	PSU Rear	Exhaust	111
9	AIO Top Cover		112
10	Chassis Bottom External	Intake	113
11	Chassis Bottom Internal	Intake	114
12	Chassis Top Internal	Exhaust	115
13	Chassis Top External	Exhaust	116
14	Chassis Right Internal	Exhaust	117
15	Chassis Right External	Exhaust	118

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1. Thermal Stress Test

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• Setting up the chamber temperature and humidity
  • Temperature: 25°C
• Humidity: 50%
• Recording Data

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6. Thermal Stress Test

Temperature Data Recoding

System Thermal Stress Test - CTE C750 Air

CPU- Intel Core I9-13900K
GPU-ASUS ROG-STRIX-RTX4090
Ambient Temperature: 25°C
Humidity: 50%
Loading with AIDA64 & FurMark

We expected to see higher temperature at the exhaust points and relatively lower temperature at the intake positions. The highest temperature was found at the AIO exhaust, which is reasonable given the CPU was running at full load. Most of the intake positions recorded a temperature lower than 40^ C since they were drawing air from environment. Two critical positions we were looking at are NO. 105 GPU Fan and NO. 112 AIO Cover, which were drawing internal air to cool two of the most important components.

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7. AIDA64 & FurMark Test

We used AIDA64 Extreme (stress FPU) and FurMark ROG Edition (resolution: 3840 x 2160) to push 100 % load on the CPU and GPU for 30 minutes.

Date	3/13/2023
Time (HH:MM)	2:03 PM
CPU Clock	5500 MHz
Motherboard	Asus ROG Maximus Z790 Apex
BIOS Version	0812
Free Memory	26517 MB
GPU Clock	210 MHz
Motherboard	27°C
CPU	33°C
CPU Package	40°C
GPU Diode	32°C
GPU Hotspot	40°C
CPU	1804 RPM
AIO Pump	3026 RPM
Chassis #3	1632 RPM
GPU	0 RPM
GPU	0%
CPU Core	1.314 V
GPU Core	0.875 V
CPU Package	41.96 W
GPU	16.38 W
GPU TDP%	3%

Date	3/13/2023
Time (HH:MM)	3:02 PM
CPU Clock	5200 MHz
Motherboard	Asus ROG Maximus Z790 Apex
BIOS Version	0812
Free Memory	26333 MB
GPU Clock	2760 MHz
Motherboard	31°C
CPU	82°C
CPU Package	93°C
GPU Diode	80°C
GPU Hotspot	90°C
CPU	1788 RPM
AIO Pump	2967 RPM
Chassis #3	1634 RPM
GPU	2503 RPM
GPU	80%
CPU Core	1.199 V
GPU Core	1.000 V
CPU Package	253.51 W
GPU	489.18 W
GPU TDP%	98%

Full loadIdleFurMark

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7. AIDA64 & FurMark Test

We used AIDA64 Extreme (stress FPU) and FurMark ROG Edition (resolution: 3840 x 2160) to push 100% load on the CPU and GPU for 30 minutes.

Full loadIdle

CPU & GPU Thermal Stress Test
CTE C750 Air

CPU- Intel Core i9-13900K
GPU-ASUS ROG-STRIX-RTX4090
Ambient Temperature: 25°C
Humidity: 50%
Loading with AIDA64 & FurMark
- T Load Temp. Idle Temp.
Temperature - Degree C
Lower is Better

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8. Graphics Performance Testing

System information
GPU	NVIDIA GeForce RTX 4090	CPU	13th Gen Intel Core i9-13800K	Time	2023-03-14 09:49 +08:00
Display #1	\DISPLAY1 (256G = 144), 100% DFT scaling)	GUI	v2.25.8056 364	SystemInfo	v5.60.1172

3DMARK

NO: RS202303280001

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9. Acoustic Sound Pressure Level Test

Test Environment : Thermaltake Taipei Office

Test Model: CTE C750

Test Ambience: 25.1 °C(Temperature) / 53% R.H.(Relative Humidity)

Microphone position: 50 cm / in front of PC system

Background Noise : 36.3 dBA.

Microphone position Test Ambience

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9. Acoustic Sound Pressure Level Test

Fan Speed 600rpm - 37.7dBA

Green digital measuring device with a probe, mounted on a stand in an office setting (no visible text or symbols)

Date	3/15/2023
Time (HH:MM)	1:25 PM
CPU Clock	5500 MHz
Motherboard	Asus ROG Maximus Z790 Apex
BIOS Version	0812
Free Memory	26498 MB
GPU Clock	210 MHz
Motherboard	28°C
CPU	31°C
CPU Package	34°C
GPU Diode	39°C
GPU Hotspot	47°C
CPU	576 RPM
AIO Pump	2673 RPM
Chassis #3	516 RPM
GPU	0 RPM
GPU	0%
CPU Core	1.181 V
GPU Core	0.875 V
CPU Package	24.95 W
GPU	15.06 W
GPU TDP%	3%

Fan Speed 800rpm - 38.2dBA

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Date	3/15/2023
Time (HH:MM)	1:27 PM
CPU Clock	5501 MHz
Motherboard	Asus ROG Maximus Z790 Apex
BIOS Version	0812
Free Memory	26517 MB
GPU Clock	210 MHz
Motherboard	27°C
CPU	30°C
CPU Package	35°C
GPU Diode	39°C
GPU Hotspot	47°C
CPU	767 RPM
AIO Pump	2683 RPM
Chassis #3	619 RPM
GPU	0 RPM
GPU	0%
CPU Core	1.314 V
GPU Core	0.875 V
CPU Package	30.98 W
GPU	13.54 W
GPU TDP%	3%

Fan Speed 1000rpm - 40.3dBA

Green digital sound meter with digital display showing 13.95, mounted on a stand in an office setting (no visible text or symbols)

Date	3/15/2023
Time (HH:MM)	1:29 PM
CPU Clock	5500 MHz
Motherboard	Asus ROG Maximus Z790 Apex
BIOS Version	0812
Free Memory	26535 MB
GPU Clock	210 MHz
Motherboard	26°C
CPU	30°C
CPU Package	33°C
GPU Diode	39°C
GPU Hotspot	47°C
CPU	958 RPM
AIO Pump	2824 RPM
Chassis #3	805 RPM
GPU	0 RPM
GPU	0%
CPU Core	1.314 V
GPU Core	0.875 V
CPU Package	32.07 W
GPU	13.78 W
GPU TDP%	3%

Fan Speed 1800rpm - 55.1dBA

Green handheld digital measuring instrument with a digital display showing 1.55, placed on a stand near a window (no visible text or symbols)

Date	3/15/2023
Time (HH:MM)	1:38 PM
CPU Clock	5500 MHz
Motherboard	Asus ROG Maximus Z790 Apex
BIOS Version	0812
Free Memory	26655 MB
GPU Clock	210 MHz
Motherboard	25°C
CPU	32°C
CPU Package	39°C
GPU Diode	33°C
GPU Hotspot	41°C
CPU	1814 RPM
AIO Pump	3026 RPM
Chassis #3	1630 RPM
GPU	0 RPM
GPU	0%
CPU Core	1.305 V
GPU Core	0.875 V
CPU Package	36.09 W
GPU	12.89 W
GPU TDP%	3%

NO: RS202303280001

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9. Acoustic Sound Pressure Level Test

Acoustic Sound Pressure Level Test - CTE C750 Air

Sound Pressure - dBA

NO: RS202303280001

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C. Conclusion

NO: RS202303280001

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Conclusion

Idle

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Left View

AIDA64 Extreme (stress FPU) and FurMark ROG Edition (resolution: 3840 x 2160) to push 100% load on the CPU and GPU for 30 minutes.
-INTEL i9 13900K / CPU Temp. (Max) : 82°C (TDP 253W)
-ASUS ROG Strix GeForce RTX® 4090 OC / GPU Temp. (Max) : 75°C

Through the thermal image, we found that the internal heat was effectively directed to designated exhaustion vents, keeping the system operating at a cooler temperature. This finding validates how efficient CTE C750 Air is regarding cooling performance.

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Thank you!