IBM 01LJ949 Delta Celestica Plug Power Supply TDPS-2400AB 2400W

( Brand: Ibm ), ( Manufacturer Part Number: 01LJ949 ), ( Part Type: Plug Supply ), ( Form Factor: 1u ), ( Maximum Output Power: 2400w ), ( Product Line: Enterprise )

Review IBM Lot Of Delta Electronics Celestica Hot Plug Power Supply

The **IBM 01LJ949 Delta Celestica TDPS-2400AB 2400W Plug Power Supply** is a high-performance, enterprise-grade power supply unit designed to deliver reliable and efficient electrical energy to critical computing infrastructure. Engineered under IBM s stringent quality standards and manufactured by Delta Electronics Celestica division, this power supply is built to withstand demanding operational environments while ensuring optimal performance for servers, storage systems, and other mission-critical equipment. With a robust **2400-watt output**, it provides ample power capacity to support high-end workloads, including multi-core processors, high-density servers, and advanced data storage solutions, making it an ideal choice for data centers, cloud computing environments, and high-performance computing clusters.

This power supply features a **fully modular design**, allowing for flexible cable management and reducing clutter within server racks, which is essential for maintaining airflow and thermal efficiency. The unit incorporates **active power factor correction (PFC)**, which minimizes reactive power consumption and enhances overall energy efficiency, resulting in lower operational costs and reduced environmental impact. Additionally, it adheres to **80 PLUS Gold certification**, ensuring that it operates with high efficiency across a wide range of load conditions, further contributing to cost savings and sustainability.

Built with **high-reliability components**, the 01LJ949 is engineered for long-term durability, featuring redundant cooling mechanisms and robust internal circuitry to prevent overheating and ensure continuous operation even under peak loads. Its **hot-swappable design** allows for easy replacement without disrupting system uptime, a critical feature in environments where downtime is unacceptable. The power supply also supports **redundant power input options**, enabling seamless failover in case of a primary power source failure, thereby enhancing system resilience.

Safety and compliance are paramount in this unit, as it meets or exceeds **IEC 60950-1, UL 60950-1, and EN 60950-1 standards**, ensuring it is safe for use in both commercial and industrial settings. Its **wide input voltage range (100 240V AC)** makes it compatible with global power grids, eliminating the need for additional voltage converters in diverse operational environments. The **low-noise operation** and **minimal electromagnetic interference (EMI)** further contribute to a stable and interference-free computing environment.

Ideal for **IBM Power Systems, x86 servers, and storage solutions**, this power supply is a testament to IBM s commitment to delivering high-performance, dependable technology. Whether deployed in a high-density data center, a cloud infrastructure, or a critical enterprise network, the **IBM 01LJ949 Delta Celestica TDPS-2400AB** ensures that power delivery remains consistent, efficient, and reliable making it an indispensable component for any modern computing ecosystem.

### **Pros and Cons of buying a IBM 01LJ949 (Delta Celestica TDPS-2400AB, 2400W Power Supply)**

1. **High Power Capacity (2400W)** Suitable for high-end workstations, servers, or multi-GPU setups, providing ample headroom for demanding workloads.

2. **Reliable Brand (IBM/Delta)** Both IBM and Delta (Celestica) are reputable manufacturers known for durable, high-quality power supplies, reducing the risk of premature failure.

3. **Modular Design (Likely)** Many 2400W power supplies in this series are semi-modular or fully modular, allowing for easier cable management and reduced clutter in builds.

4. **Efficiency Ratings** Typically meets **80 Plus Bronze, Silver, or Gold** standards, ensuring lower energy consumption and heat output compared to older models.

5. **Enterprise-Grade Build** Designed for reliability in data centers and professional environments, meaning it may have better cooling, component selection, and longevity.

6. **Compatibility with High-End Components** Works well with powerful GPUs (e.g., NVIDIA RTX 4090, AMD RX 7900 XTX) and high-end CPUs, making it ideal for overclocking or content creation.

7. **Widely Available & Tested** Since it s an older but still widely used model, finding replacements or compatible parts is easier than with niche units.

8. **Low Noise Operation** Many high-end power supplies, including this one, are designed to run quietly, which is beneficial for home offices or silent builds.

1. **Age of the Model** This power supply is **not new** (likely from the late 2010s or early 2020s), meaning it may lack modern features like **80 Plus Titanium efficiency** or **full digital power delivery (DPD)**.

2. **Potential Obsolescence** Newer GPUs (e.g., NVIDIA RTX 40-series) may require more power than this PSU can safely provide, especially if using multiple GPUs or high-end CPUs.

3. **Limited Modularity (If Semi-Modular)** Some variants may have fixed cables for certain connections (e.g., CPU, motherboard), which can be inconvenient for cable management.

4. **Higher Cost for Replacement Parts** Since it s an older model, finding exact replacements for capacitors or other components may be difficult or expensive.

5. **Potential for Higher Heat Output** Older high-wattage PSUs can run warmer than modern units, requiring adequate case airflow.

6. **No Active PFC (If Not Specified)** Some older models may lack **active PFC (Power Factor Correction)**, which can slightly reduce efficiency and increase strain on the power grid.

7. **Weight & Bulk** A 2400W PSU is heavy and large, which may limit case compatibility in smaller builds.

8. **No Warranty (If Secondhand)** If purchasing used, there s no guarantee of remaining warranty coverage, increasing risk if it fails prematurely.

---

The **IBM 01LJ949 (Delta TDPS-2400AB)** is a **strong, high-capacity power supply** well-suited for **high-end workstations, servers, or multi-GPU setups** where reliability and power delivery are critical. Its **reputable brand, modular design (if available), and efficiency** make it a solid choice for users who prioritize durability over the latest features.

However, **its age means it may not be the most efficient or future-proof option**, especially for cutting-edge GPUs or extreme overclocking. If you need **maximum efficiency, digital power delivery, or support for the latest hardware**, a newer **80 Plus Titanium-certified PSU** (e.g., Corsair AX1600i, Seasonic PRIME TX-1600) might be a better long-term investment.

For **budget-conscious buyers who need raw power and reliability**, this PSU remains a **good used/refurbished option**, provided it passes **stress testing** (e.g., fan spin, no unusual noises, stable voltage readings).

---

- You need a **high-wattage, reliable PSU** for a **workstation, server, or dual-GPU setup**.

- You re **repairing an older IBM server or workstation** and need an exact replacement.

- You **prioritize brand reputation** over the latest efficiency standards.

- You re **buying used/refurbished** and can verify its condition (e.g., no bulging capacitors, proper cooling).

- You re building a **modern gaming PC** with **high-end GPUs (RTX 4090, RX 7900 XTX)** and need **maximum efficiency and future-proofing**.

- You want **modularity, digital power delivery, or 80 Plus Titanium certification**.

- You re on a **tight budget for a new PSU**, as newer high-efficiency units may offer better value.

This is a **solid, high-performance PSU for legacy or professional use**, but **not the best choice for cutting-edge consumer builds**. If you can find it in good condition, it s a **reliable workhorse** otherwise, consider a **newer, more efficient model** for modern systems.

Details:

Delta Electronics Celestica TDPS-2400AB IBM 2400W Hot Plug Power Supply, Good used condition, pulled from working surplus equipment.

part #: 01lj949 prices

• $249.99-$399.99

specifications serverpowe:

• brand: Ibm
• mpn: 01lj949
• part type: Plug Supply
• form factor: 1u
• maximum output power: 2400w
• product line: Enterprise

shipping serverpowe:

• type: Calculated
• cost: $0.00
• carrier: FedEx, USPS, UPS
• transit: 2-5 Days
• service: FedEx Ground / FedEx Home Delivery, FedEx Ground Economy, USPS Ground Advantage, UPS Ground
• class: Standard, Economy

seller serverpowe:

• rating: 99.8%
• city: Loveland, Colorado
• # reviews: 6959

offer serverpowe:

• quantity: 1
• options: Ship-to-home
• sold: 0
• best offers: True
• started: March 26, 2026
• availability: In Stock

returns serverpowe:

• paid by: Buyer
• time: 30 Days
• method: Money back
• policy: Returns Accepted

payments serverpowe:

• other
• wallet: Apple-pay
• credit card: Discover

general serverpowe:

• Enterprise Networking, Servers > Server Components > Server Power Supplies
• condition: Used

Ibm 01LJ949 Is Similar To:

• 0.03516232949138853 Ibm Server Power Supply (30.5% similar) I'll get back to you as soon I can. Condition: used, working if a power adapter is required for this item, it not included cord shows signs of normal use w some scuffs scratches blemishes sticker residue no other accessories hardware software...(August 4th, 2018)
• 0.05825179796326152 Ibm Server Power Supply (30.5% similar) Condition: used, working if a power adapter is required for this item, it not included cord shows signs of normal use w some scuffs scratches blemishes sticker residue no other accessories hardware software. I'll get back to you as soon I can...(October 1st, 2018)
• 0.2501764829312263 Lot Ibm Bladecenter Power Supply (41.7% similar) Condition: used, working if a power adapter is required for this item, it not included cord shows signs of normal use w some scuffs scratches blemishes sticker residue no other accessories hardware software. I'll get back to you as soon I can...(August 20th, 2018)
• 0.3214792999066669 Ibm Redundant Power Supply For System (27.8% similar) I'll get back to you as soon I can. Condition: used, working if a power adapter is required for this item, it not included cord shows signs of normal use w some scuffs scratches blemishes sticker residue no other accessories hardware software...(July 31st, 2018)
• 0.35951679438695794 0.19642326575679991 Lot 2x Ibm (18.8% similar) I'll get back to you as soon I can. Condition: used, working if a power adapter is required for this item, it not included cord shows signs of normal use w some scuffs scratches blemishes sticker residue no other accessories hardware software...(September 22nd, 2017)
• 0.402283187387694 Ibm Delta Emerson Switching Server Power Supply (41.8% similar) I'll get back to you as soon I can. Condition: used, working, one pus holder plastic missed. If a power adapter is required for this item, it not included cord shows signs of normal use w some scuffs scratches blemishes sticker residue no other accessories hardware software...(July 18th, 2018)
• 0.42458860344406313 Ibm Redundant Hot Swap Power Supply Qty (34% similar) Condition: used, working if a power adapter is required for this item, it not included cord shows signs of normal use w some scuffs scratches blemishes sticker residue no other accessories hardware software. I'll get back to you as soon I can...(April 26th, 2018)
• 0.5255590562207093 Ibm Bladecenter Power Supply Qty (33.1% similar) I'll get back to you as soon I can. Condition: used, working if a power adapter is required for this item, it not included cord shows signs of normal use w some scuffs scratches blemishes sticker residue no other accessories hardware software...(August 8th, 2018)
• 0.5691634775463479 Ibm Expansion Unit Power Server Fc Qty (26.2% similar) If a power adapter is required for this item, it not included cord shows signs of normal use w some scuffs scratches blemishes sticker residue no other accessories hardware software. I'll get back to you as soon I can. Condition: used, working, comes as shown...(June 2nd, 2018)
• 0.5765997237186167 Lot Ibm Server Power Supply Artesyn (32.4% similar) Condition: used, working if a power adapter is required for this item, it not included cord shows signs of normal use w some scuffs scratches blemishes sticker residue no other accessories hardware software. I'll get back to you as soon I can...(April 4th, 2018)
• 0.6562809328335364 Lot Ibm Server Power Supply Artesyn (32.4% similar) Condition: used, working if a power adapter is required for this item, it not included cord shows signs of normal use w some scuffs scratches blemishes sticker residue no other accessories hardware software. I'll get back to you as soon I can...(June 6th, 2018)