CodeWithHarry: The speaker introduces a comprehensive, updated data science course designed to fill gaps in existing online offerings, aiming to make learners job-ready with practical projects and continuous updates.
Linus Tech Tips: The video discusses the challenges and solutions in cooling a high-performance server cluster using a custom-built water cooling system.
CodeWithHarry - Biggest Announcement!!! 📢📢📢
The speaker shares their journey from struggling with English and programming to creating a successful YouTube channel and a new data science course. They emphasize the demand for data science skills in the AI era and the lack of effective courses online. The course is designed to be comprehensive, updated, and practical, with real-world projects and continuous updates. It aims to prepare learners for internships and placements, addressing the gap in quality data science education. The course includes a Python refresher, real-world projects, and covers essential libraries like NumPy and Pandas. It is priced affordably with an early bird discount and offers a signed certificate of completion to aid in job applications.
Key Points:
- Data science skills are in high demand, especially in the AI era, with job opportunities expected to grow.
- Existing online courses often lack depth and practical application, leading to 'tutorial hell.'
- The new course offers real-world projects, continuous updates, and a comprehensive curriculum.
- The course includes a Python refresher and covers essential libraries like NumPy and Pandas.
- Priced at ₹4499 with an early bird discount, it offers a signed certificate of completion to enhance job prospects.
Details:
1. 🌟 From Insecurity to Inspiration: Starting the Journey
1.1. Initial Challenges and Language Barriers
1.2. Discovery of Accessible Resources
1.3. Contribution to Community Learning
2. 🚀 Achieving Milestones: Growth and Impact
- The channel rapidly expanded its subscriber base, surpassing a thousand subscribers quickly due to engaging live streams.
- Viewership numbers surged to millions, reflecting substantial growth and audience engagement.
- A key motivation was to provide unique educational experiences, contributing to the channel's significant impact.
- A clear strategy of frequent and interactive live content was pivotal in driving both growth and impact.
3. 🔍 Creating an Impactful Data Science Course
- The course aimed to significantly impact learners' careers and personal growth, emphasizing the relevance of data science in the current AI-driven era.
- Planning began 8 months ago, focusing on strategically incorporating skills that are in high demand.
- The course was designed to align with market needs by focusing on practical applications and real-world data science problems.
- By integrating industry trends and feedback, the course ensures learners acquire skills that enhance their employability and career advancement.
4. 📈 The Ever-Growing Demand for Data Science
4.1. Strong Market Demand for Data Science
4.2. Challenges in Data Science Education
5. 🎨 Crafting a Unique and Comprehensive Course
- The creator identified a gap in the market for a well-organized data science course, addressing the issue of existing courses being lengthy, filled with 'fluff,' and lacking engagement.
- In response, a comprehensive data science course was developed in consultation with industry professionals, including those working internationally, ensuring relevance and quality.
- The course underwent a rigorous refinement process, where subpar videos were deleted and re-recorded, and significant resources were invested in production to enhance quality.
- Key features of the course include concise video content, practical examples, and international insights, making it engaging and informative.
6. 🛠️ Real-World Projects: Bridging Theory and Practice
- The course is designed to add value at every second and is animated for better understanding.
- Significant hours were spent to make it a perfect data science explainer course.
- The course is comprehensive, updated, and will continuously be updated with new data science developments.
- It is not a one-time product; it is meant for continuous learning.
- The course aims to teach data science concepts in minimal time with maximum understanding.
7. 📚 Structured Learning: Course Content and Tools
- The course is strategically designed to prepare participants for internships and placements, making it particularly suitable for college students aiming for placement opportunities.
- There is a growing demand for data scientists, leading to an increase in hiring as companies integrate AI into their processes and algorithms.
- The course focuses on practical, real-world projects rather than hypothetical ones, providing participants with hands-on experience that is directly applicable to the workplace.
- Initial components of the course include Anaconda installation, a Python refresher, and a personally designed real-world project to build practical skills.
- A comprehensive handbook is provided with the course, which was developed with significant time investment to enhance learning.
- Feedback indicates dissatisfaction with expensive courses ranging from INR 20,000 to 1,00,000, suggesting that such courses do not deliver enough value.
- Completion rates are higher for paid courses, as financial investment often increases the likelihood of course completion.
- The course begins with an introduction to data science, highlighting its importance and various applications across industries.
8. 🔧 Essential Tools: Python and More
- The course covers the use of Anaconda and Miniconda, which are crucial for managing Python environments in data science.
- Python is the preferred language for data science due to its versatility and extensive libraries like NumPy, which is explored in-depth during the course.
- A Python refresher is provided using Jupyter Notebook, tailored for data science applications.
- For beginners, a comprehensive 10-hour Python course is available for free, ensuring foundational skills are developed.
- The 'Coders of Delhi' project, designed by the instructor, offers a practical, engaging way to apply Python skills in real-world scenarios.
9. 🗓️ Flexible Learning Schedule and Access
- The course begins with foundations in pandas, business statistics, and probabilities, followed by machine learning and generative AI topics.
- A 10-hour Python course is available for beginners, featuring fresh content not found on YouTube, while a Python refresher is included for those with prior knowledge.
- Access is provided through a payment link leading to Razorpay, with email support for any issues regarding access or payment.
- Introductory videos are accessible immediately after purchase, with full course content available from 20th April 2025 and daily lectures uploaded thereafter.
- The course is designed for learner engagement with animations and is expected to be completed within 2 to 3 months, allowing flexible learning at one's own pace.
10. 🎓 Career Opportunities: Navigating the Job Market
- The course is self-paced and suitable for students from first to third year, enhancing job readiness at any stage.
- Completing this course significantly increases hiring prospects, with examples showing competitive salary offers.
- A notable example is a data scientist role at VIT, initially offering 18 LPA, which rose to 22 LPA due to competitive hiring.
- The course is a comprehensive learning experience, developed over 8 months, with regular updates to ensure content relevance.
- Even without purchasing the course, data science learning is accessible through resources like YouTube, providing alternative pathways to skill acquisition.
11. 💰 Affordable Learning: Pricing and Options
- The course aims to teach data science in 6 to 7 months with the learner's practice included, which might take longer if self-studied through books, YouTube, blogs, and documentation.
- The course is priced at ₹4499, which is considered one of the most affordable data science courses.
- An early bird discount is available, reducing the price to ₹2899 for a limited time until slots are filled.
- A signed certificate of completion will be provided, which can help in securing jobs and internships.
Linus Tech Tips - The $1,000,000 PC ruined our server room
The video details the process of managing the heat output from a high-performance server cluster, nicknamed 'million-doll PC,' which generates 7,000 to 8,000 watts of heat. The team initially used a proof-of-concept heat exchanger setup with APC data center cooling towers to manage the heat. However, this setup was inefficient and took up a lot of space. To improve efficiency, they decided to attach radiators directly to the back of the server rack, which would save space and potentially work better. The video documents the challenges faced during this process, such as leaks and the need for specific fittings, and how they were resolved. The team also added fans to enhance airflow through the radiators. The final setup, which includes a custom-built water door with radiators, successfully reduces the temperature of the air exiting the server rack, demonstrating an effective cooling solution for high-performance computing environments.
Key Points:
- The server cluster generates significant heat, requiring innovative cooling solutions.
- Initial cooling setup was inefficient and space-consuming, prompting a redesign.
- Directly attaching radiators to the server rack saves space and improves cooling efficiency.
- Challenges included leaks and fitting issues, which were resolved through trial and error.
- The final cooling system effectively reduces server room temperature, enhancing performance.
Details:
1. 🔥 Server Cooling Challenges
- The server cluster, nicknamed 'milliondoll PC,' generates 7,000 to 8,000 watts of heat, creating severe cooling challenges in the server room.
- A proof of concept heat exchanger setup using APC data center cooling towers has improved the situation but still leaves the room warmer than desired.
- The heat exchanger setup captures heat from the server cluster and uses a second cooling tower to expel it into a warehouse, which reduces the need for additional heating in that space.
- The current cooling setup occupies significant space and is not ideal for the server room, which lacks separate hot and cold aisles.
- A cardboard duct system is used to direct hot air to the cooling tower radiators, but this method is inefficient and poses a fire hazard.
- There is potential to improve space efficiency and cooling effectiveness by attaching radiators directly to the back of the server rack.
- Consider exploring alternative cooling technologies such as liquid cooling systems or server room redesign to include hot and cold aisle separation for enhanced efficiency.
2. 🔧 Setup and Sponsors
2.1. Projector Setup Features
2.2. Sponsorship and Promotions
3. 💡 Current Cooling System Improvements
- The current cooling system is operational with effective filtering and automatic top-up, showing no leaks or immediate issues, indicating no major changes required to these components.
- The existing pump, made of cast iron, is unsuitable for a mixed metal loop due to the absence of corrosion inhibitors, necessitating an upgrade.
- The upgraded pump will be constructed from stainless steel, mitigating corrosion risks within a mixed metal system, and will have a capacity of one-sixth horsepower.
- The new pump aims to deliver approximately 25 gallons per minute with 10 feet of head pressure, markedly improving efficiency over typical garden hose systems.
- Stainless steel's use over cast iron is strategic, offering enhanced durability and compatibility in diverse metal environments, thus extending system longevity.
4. 🔩 Troubleshooting Radiators
- Radiators require specific screwdriver bit sets, such as a torque set, available at the LTP store.
- Radiator connections include one inlet and two outlets, requiring careful measurement for fittings.
- Despite initial assumptions, copper fittings needed are 5/8 and 3/4 inches, not 7/8 and 3/4 inches, indicating the importance of precise measurement.
- Common radiator issues include leaks and inconsistent heating, which can often be resolved by checking and tightening connections.
- Ensure the correct fitting size to prevent leaks, which often occur due to incorrect measurements or worn-out seals.
5. 🧰 Plumbing Challenges and Solutions
5.1. Identifying the Right Pipe Size
5.2. Acquiring Necessary Fittings
5.3. Measurement
5.4. Adjusting Pipe Fittings
5.5. Finalizing the Solution
5.6. Innovative Solution Consideration
6. 🔍 Leak Testing and Adjustments
- Radiator fittings have been soldered and are being tested for leaks using an air pump with a gauge and Windex spray to detect bubbles.
- Initial leak tests show no bubbles, indicating no leaks and that the solder joints are clean and effective.
- Reworking radiators instead of purchasing new ones due to high cost and lack of response from vendors, with quotes as high as $60,000 for new radiators.
- The decision to salvage and repair existing radiators is seen as both cost-effective and more engaging, although potential problems are acknowledged.
7. 🔄 Radiator Installation and Testing
- Utilize 3/4 NPT to 3/4 ID barbs for simple connection, enabling easy twisting on, which simplifies the installation process.
- Incorporate T fittings and right angles at the top of each radiator to facilitate complex connections, ensuring seamless integration with the bottom radiator.
- A swivel barb priced at $11 is crucial for effective connection setup, providing necessary flexibility and ease of use.
- Strategically route the installation to accommodate door movement without relying on flexible hoses, which involves planning additional length for bending to prevent kinking.
- Connect two hoses from PEX tubing in the building to designated inlet and outlet points, ensuring a streamlined flow with minimal splitting, enhancing efficiency.
8. 🌬️ Airflow Dynamics and Improvements
8.1. Installation Challenges
8.2. Testing Outcomes
9. 🚪 Building a Water-Cooled Server Door
- The water-cooled server door is designed to capture and cool hot air from servers using water at approximately 20°C, which can potentially improve cooling efficiency and reduce the need for larger cooling setups.
- By positioning the cooling door closer to the heat source, space usage is optimized, potentially enhancing overall cooling performance.
- Initial tests of the server door indicate that airflow may not be strong enough, suggesting the need for additional fans to achieve optimal cooling efficiency.
- To ensure secure connections and prevent leaks, the transition from shark bite fittings to crimp fittings is being implemented, which involves using a metal ring and a tool to compress the plastic tubing tightly.
- Further testing is needed to evaluate the effectiveness of these improvements and to ensure the setup provides adequate cooling.
10. 💨 Final Adjustments and Testing
- Utilized room temperature water (~20°C) for cooling, ensuring effective heat dissipation.
- The cooled air is noticeably colder than ambient room temperature, indicating successful cooling.
- Servers tested using fresh air intake, optimizing thermal management and possibly reducing energy consumption.
- Employed Noctua industrial fans with a speed of 30,000 RPM to maximize cooling efficiency.
- Configured four sets of double fans, which, while barely adequate for one radiator, represent a significant improvement in cooling capability.
- Air output is slightly warm, demonstrating high air throughput and effective cooling performance.
11. 🔌 Power Supply and Server Room Setup
- The server setup experienced zero leaks in the current configuration, improving reliability.
- Fans are effectively pulling heat through, indicating a need for more active cooling to maintain optimal temperature.
- The back of the servers are operating at temperatures between 45 to 55 degrees Celsius, suggesting room for thermal optimization.
- The existing 24-watt power supply is insufficient to power more than three fans safely, indicating the need for a higher capacity power solution.
- A 500-watt HDLEX gallium nitride power supply is being considered, which is compact, easily mountable, and capable of being daisy-chained for enhanced power distribution.
- The current setup uses a Molex connection capable of handling approximately 100 watts, suitable for running multiple fans.
- Consideration of additional cooling strategies, such as liquid cooling or higher efficiency fans, could further enhance thermal management.
12. 📊 Performance Assessment and Results
12.1. Air Conditioning Setup
12.2. Performance Metrics
12.3. Cooling Improvement
12.4. Thermal Analysis
12.5. Temperature Measurements
12.6. Server Performance
13. 📽️ Sponsor Message
- The projector boasts 2600 ANSI lumens for ultra-bright visuals and a delta E of less than one for precise color accuracy, delivering studio-grade picture quality.
- Its compact design is comparable to a shoe box, with a handle for easy portability, making it ideal for both home and on-the-go use.
- Projects screen sizes from 80 inches to 150 inches, with support for Dolby Vision and HDR10+ for superior image quality, enhancing movie nights and presentations.
- Smart AI screen adaptation includes auto-screen fit, intelligent obstacle avoidance, and autofocus, providing a seamless user experience.
- Equipped with two built-in 15-watt speakers, offering quality sound output that enriches the viewing experience without needing external speakers.
- Features three HDMI 2.1 inputs, allowing diverse device connectivity for gaming consoles, laptops, and streaming devices.
- Includes a hidden compartment for a Fire TV Stick, enhancing streaming capabilities and keeping the setup tidy.
14. 🔚 Conclusion and Wrap-Up
- The project involved a 2-week effort to build a water door, demonstrating commitment and project management over an extended period.
- Encourages audience engagement by asking viewers to like and subscribe, indicating a strategy for increasing engagement and audience retention.
- References to previous work (wholesome water cooling project) suggests a series of related content, which can help in building a consistent viewer base.
