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Description
Lenovo ThinkSystem 550W (230V/115V) Platinum Hot-Swap Power SupplyLenovo ThinkSystem 550W Platinum Hot Swap Power Supply Power the heart of your data center with unwavering reliability and efficiency. The Lenovo ThinkSystem 550W Platinum Hot Swap Power Supply is designed to support Lenovo ThinkSystem servers with clean, stable power, delivering dependable operation for enterprise workloads. Featuring universal 230V 115V input, 80 PLUS Platinum efficiency, and a true hot swap design, this power supply minimizes
Lenovo ThinkSystem 550W Platinum Hot-Swap Power Supply
Power the heart of your data center with unwavering reliability and efficiency. The Lenovo ThinkSystem 550W Platinum Hot-Swap Power Supply is designed to support Lenovo ThinkSystem servers with clean, stable power, delivering dependable operation for enterprise workloads. Featuring universal 230V/115V input, 80 PLUS Platinum efficiency, and a true hot-swap design, this power supply minimizes downtime, simplifies maintenance, and helps keep your servers online during critical upgrades or failures. Built to meet the demanding expectations of modern data centers, it combines robust electrical protection, excellent energy performance, and seamless integration with Lenovo’s server ecosystem.
- 550W continuous power with 80 PLUS Platinum efficiency for maximum energy savings and cooler operation
- Universal 230V/115V input for global deployments and flexible data-center configurations
- Hot-swappable design enables quick replacement without powering down the server or driving maintenance windows
- Reliable protection features including overvoltage, overcurrent, short-circuit, and thermal safeguards
- Designed for Lenovo ThinkSystem servers to ensure optimal compatibility, performance, and serviceability
Technical Details of Lenovo ThinkSystem 550W Platinum Hot-Swap Power Supply
- Power rating: 550 W (continuous)
- Input: Universal AC input, 230V/115V auto-sensing
- Efficiency: 80 PLUS Platinum certified, delivering high efficiency across a range of loads
- Form factor: Hot-swappable power supply module compatible with ThinkSystem server chassis
- Protection features: Overvoltage protection, overcurrent protection, short-circuit protection, and thermal protection
- Reliability: Built for enterprise data centers with robust components and long MTBF characteristics
- Compatibility: Specifically engineered for Lenovo ThinkSystem servers to ensure seamless integration and stable operation
- Compliance: Meets common safety and EMC standards typical of enterprise power supplies
How to Install Lenovo ThinkSystem 550W Platinum Hot-Swap Power Supply
- Power down the server and unplug the power cord from the outlet. If your environment supports cluster redundancy, follow your standard hot-swap procedures to ensure no disruption to live workloads.
- Open the server chassis and locate the hot-swap power supply bay. Identify the faulted or spare slot according to the server’s documentation.
- Carefully release the existing power supply module by pressing the release latch or handle, then slide the unit out of the bay with a firm, straight motion.
- Align the replacement 550W Platinum hot-swap power supply with the bay rails and slide it in until the latch engages securely. Confirm that the power supply is seated completely and the front panel indicators are visible.
- Reconnect any cables or connectors as required by the server design, close the chassis, plug the system back into AC power, and power on the server. Verify that the power supply LED indicators show healthy operation and that the server recognizes the new module in the bay.
Frequently Asked Questions
- Q: Is the Lenovo ThinkSystem 550W Platinum Power Supply hot-swappable? A: Yes. It is designed for easy field replacement without powering down the entire server, helping minimize maintenance windows and downtime.
- Q: What input voltage does it support? A: The power supply supports universal 230V/115V input with automatic sensing for global deployments.
- Q: What is the efficiency rating? A: It is 80 PLUS Platinum certified, offering improved energy efficiency and lower operating costs compared to lower-efficiency models.
- Q: Is this power supply compatible with all ThinkSystem servers? A: It is specifically engineered for Lenovo ThinkSystem servers, ensuring reliable performance and seamless integration within the Lenovo ecosystem.
- Q: What protections are included? A: The unit includes overvoltage, overcurrent, short-circuit, and thermal protections to guard both the power supply and connected server components.
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4.8 ★★★★★
Based on 9 reviews
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Product Reviews
★★★★★ 1
A Disconnected and Legally Shaky Defense of Racial Preferences
Format: Paperback
While this book raises some thought-provoking points, it ultimately reads like a product of self-righteous elites disconnected from reality and from the American public.
1. Ignores public opinion.
The author never acknowledges that polls consistently show Americans oppose racial preferences in college admissions. Proposition 16—which would have allowed such preferences—was defeated by a wide margin in 2020 in California, one of the nation’s most liberal states. A Brookings poll found that virtually all racial groups, including Black respondents, supported the Supreme Court’s Students for Fair Admissions (SFFA) decision.
2. Starts with a strange premise.
The first chapter claims conservatives will “regret” the SFFA ruling because universities will continue racial preferences covertly. But that sidesteps the real question: why shouldn’t colleges comply with the ruling’s letter and spirit?
3. Offers dubious legal advice.
In Chapter Three, the author—himself a law professor—floats risky ideas for “working around” the Supreme Court’s decision. Many of these suggestions rest on shaky legal ground, as anyone familiar with the Second Circuit’s CACAGNY v. Adams, 116 F.4th 161 (2d Cir. 2024), would recognize.
4. Ignores proportionality and real-world outcomes.
The book argues for “diversity” preferences without asking how much preference is justified. In reality, Asian American applicants face steep penalties. e.g. Stanley Zhong was rejected by five University of California campuses’ Computer Science programs as an in-state applicant—shortly before Google hired him for a full-time, Ph.D.-level software engineering position. Meanwhile, UC San Diego’s own freshman math-placement data show a surge of students—mostly “underrepresented minorities” favored by UC—placed into remedial courses, some testing at a 4th-grade level. It is hard to see how admitting these students is helping them other than allowing some elites to make themselves feel good or get a promotion.
If this book represents what passes for legal scholarship at Yale, the state of American legal education should worry us all.
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Reviewed in the United States on October 12, 2025
★★★★★ 5
Adherence to the Rule of Law Must Not Become a Fair Weather Sport
Format: Paperback
The memorable quotation I have used for the title of this review comes from the second chapter (I think) of "The Fall of Affirmative Action." What is actually happening in the United States is that the law is being enforced rigorously against "enemy" institutions such as those of higher learning and not at all against those with power, money, or affinity for same.
The author, an African-American Yale Law professor, devotes his first chapter to the ways in which conservatives might critique the SCOTUS precedent that ended affirmative action and his second to the ways in which liberals might critique it. His most invaluable contribution to the debate is that civil rights can be advocated from an anti-classification standpoint or an anti-subordination standpoint, with anti-subordinationists on both sides of the affirmative action debate. This forced me to take perhaps a harder look at my own beliefs than most books or articles about affirmative action. African-Americans are certainly subordinated in reality by being excluded from higher education but they are subordinated mostly in the minds of white Americans by the fact that a white applicant with the same scores, extracurriculars and admission essays might not get in. That at least is the conclusion I have come to.
"Students for Fair Admissions," the organization that brought down affirmative action before SCOTUS, has now sued those few elite educational institutions that DIDN'T see sharp drops in their African-American enrollment. One strongly suspects that SFFA if not the "Justices" they persuaded will be happy only with a formal quota for African-Americans which is half or less their proportion in the population of the state where the institution is located.
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Reviewed in the United States on November 4, 2025
★★★★★ 5
Provocative and fascinating read
Format: Paperback
Justin Driver's excellent book makes the case that conservatives may come to regret the Supreme Court's 2023 decision striking down affirmative action in college admissions. He argues that, rather than simply check a box to indicate their race, the decision will force non-white applicants to "perform their trauma" in application essays in ways that conservatives may find even more corrosive. And affluent non-white candidates--the people conservatives say should not be benefiting from affirmative action--will be the ones best-positioned to take advantage of the opportunity, since they are most equipped to exploit the loopholes and work-arounds that the Roberts decision created. A truly provocative read.
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Reviewed in the United States on October 1, 2025
★★★★★ 5
A Powerful and Timely Book about Fairness and Equality in America
Format: Kindle
This book is beautifully written and deeply engaging. As a non-lawyer, I appreciated the author's ability to cut through legal abstraction to reveal what is truly at stake as the Supreme Court turns away from policies designed to expand opportunity. Driver writes, with clarity and conviction, that genuine equality demands more than the pretense that race no longer matters. The result is a powerful and thought-provoking work that reminds us the pursuit of fairness in America remains unfinished.
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Reviewed in the United States on October 5, 2025
★★★★★ 5
Awesome
Format: Kindle
Exactly what I needed to get started, and with a lot of useful tips on getting started. Highly recommend this book.
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Reviewed in the United States on November 3, 2024