6 Best Alternatives to the Tivora Power Supply 310W Compatible (2026)

How alternatives compare to Tivora

Corsair RM850x Shift 850W White ATX Power Supply

The Corsair RM850x Shift offers a massive jump from 310W to 850W in a standard ATX form factor. This unit supports ATX 3.1 and PCIe 5.1, making it suitable for modern high-end GPUs. You gain full modularity and 80 Plus Gold efficiency, which improves power delivery stability. However, it is significantly larger and heavier than the compact TFX unit. This choice is for users building a new desktop rather than replacing a part in a small Lenovo chassis. The white color and side-mounted connectors also change the visual and physical installation requirements.

Corsair RM850x 850W Fully Modular ATX 3.1 PSU

The Corsair RM850x provides 850W of power in a standard ATX size, contrasting sharply with the Tivora’s 310W TFX design. It features full modularity and ATX 3.1 support with PCIe 5.1 readiness. This unit is ideal for high-performance builds needing substantial headroom. You lose the compact footprint required for specific Lenovo desktops. The black color and standard dimensions make it incompatible with small form factor cases. This option is best for enthusiasts upgrading a standard tower, not for replacing a failed OEM power supply in a business desktop. It prioritizes raw power and modern connectivity over space efficiency.

Corsair RM750x Shift White 750W ATX Power Supply

The Corsair RM750x Shift delivers 750W in an ATX form factor, far exceeding the Tivora’s 310W output. It includes ATX 3.1 support and PCIe 5.1 compatibility for next-gen graphics cards. The fully modular design and 80 Plus Gold rating offer better cable management and efficiency. However, it is much larger and heavier than the TFX unit. The side-mounted connectors require a compatible motherboard. This choice suits users building a modern ATX desktop who need high power and clean aesthetics. It is not a drop-in replacement for Lenovo systems due to the different form factor and significantly higher wattage.

Corsair RM1000e 1000W ATX Power Supply

The Corsair RM1000e provides 1000W of power in a standard ATX size, a substantial increase from the Tivora’s 310W. It offers 80 Plus Gold efficiency and full modularity for efficient power delivery. This unit is designed for high-performance desktops requiring significant power headroom. You cannot use it in the compact Lenovo chassis that requires the TFX form factor. The larger size and weight make it suitable only for standard ATX cases. This option is for users building powerful gaming or workstation PCs. It prioritizes maximum power capacity and modern standards over the compact size needed for OEM desktop replacements.

EVGA 500 W1 500W Power Supply

The EVGA 500W 80+ White is a non-modular ATX unit, offering more wattage than the Tivora but in a different form factor. It is designed for basic desktop builds with modest power needs. The 80 Plus White rating indicates lower efficiency compared to higher-tier units. It lacks the modularity and advanced features of modern PSUs. The standard ATX size prevents it from fitting into small Lenovo chassis. This choice is for users building a new entry-level system on a budget. It is not a compatible replacement for the Tivora unit due to the physical size and connector differences. It serves a different market segment entirely.

FSP 400W Gold Flex ATX Mini ITX Power Supply

The FSP 400W Gold Flex is a Mini ITX PSU, closer in size to the Tivora but still a different form factor. It offers 400W with 80 Plus Gold efficiency, providing better power delivery than the Tivora’s basic output. The compact design suits small builds, though it may not fit specific Lenovo TFX slots. It is ideal for compact systems with low power requirements. You gain higher efficiency but lose the specific connectors and wattage tailored for Lenovo desktops. This option is for users building custom Mini ITX PCs. It is not a direct replacement for the Tivora unit due to form factor and compatibility differences. It serves enthusiasts needing small, efficient power.

Quick picks

Our 7 picks

1 Best overall

Tivora 310W TFX Power Supply

Best for: Lenovo TFX desktop replacements

Wattage

310W

PCIe Connector Type

6+2PIN

Form Factor

TFX

Weight

1.79 pounds

View on Amazon: Tivora 310W TFX Power Supply Affiliate link

This Tivora unit replaces 310W TFX power supplies in select Lenovo desktops. It delivers 310W total output across three +12V rails, each rated at 18A. The design includes an intelligent temperature-controlled fan and adaptive wide voltage support for stable operation. It weighs 1.79 pounds and features a 10-pin main connector with 6+2 pin and 4-pin attachments. It suits users needing a direct replacement for specific Lenovo TFX models.

Pros

• 310W total max output capacity
• Three +12V rails with 18A each
• Intelligent temperature-controlled fan
• Adaptive wide voltage design (100-240V)

Cons

• Limited to 310W output
• TFX form factor restricts use
• No 80 Plus efficiency rating listed

Good fit if

• You need a replacement for a Lenovo TFX power supply
• Your system requires a 310W TFX unit
• You want a direct fit for compatible Lenovo models

Skip if

• You require a standard ATX power supply
• Your system needs more than 310W
• You need high-efficiency certification like 80 Plus Gold

Verdict: Tivora 310W TFX Power Supply fits users replacing a failed unit in compatible Lenovo desktops. It provides the necessary 310W output for systems designed for this specific form factor and wattage.

2 Also great

Corsair RM850x Shift 850W White ATX Power Supply

Best for: High-end gaming PCs with PCIe 5.1 GPUs

Wattage

850W

Efficiency Rating

80 Plus Gold

Modularity

Fully Modular

ATX Version

ATX 3.1

PCIe Connector Type

PCIe 5.1

Dimensions

6.3 × 5.91 × 3.39 inches

View on Amazon: Corsair RM850x Shift 850W White ATX Power Supply Affiliate link

This Corsair unit delivers 850W of power with ATX 3.1 and PCIe 5.1 support. It features a fully modular design and 80 Plus Gold efficiency. The white finish and compact 5.91-inch width suit modern builds. You get zero RPM fan operation for silent performance. This power supply fits high-end systems requiring stable power delivery for new GPUs.

Pros

• 850W output capacity
• ATX 3.1 compliance
• PCIe 5.1 connector support
• Fully modular cabling
• 80 Plus Gold efficiency

Cons

• Heavier at 3.75 pounds
• White color limits stealth builds
• No mention of cable length

Good fit if

• You need PCIe 5.1 support for new graphics cards
• You prefer a white aesthetic for your case
• You want fully modular cables for clean routing

Skip if

• You are building a budget system under 500W
• You require a black color scheme
• You need a smaller form factor than ATX

Verdict: Corsair RM850x Shift 850W ATX 3.1 is ideal for enthusiasts upgrading to next-gen GPUs. It provides the necessary power and connectivity for high-performance rigs without noise.

3 Best budget

Corsair RM850x 850W Fully Modular ATX 3.1 PSU

Best for: high-wattage builds requiring ATX 3.1

Wattage

850W

Efficiency Rating

Cybenetics Gold

Modularity

Fully Modular

ATX Version

ATX 3.1

PCIe Connector Type

12V-2x6

PCIe Version

PCIe 5.1

View on Amazon: Corsair RM850x 850W Fully Modular ATX 3.1 PSU Affiliate link

The Corsair RM850x is a fully modular ATX power supply rated at 850W. It supports ATX 3.1 and PCIe 5.1 standards with a 12V-2x6 connector. The unit achieves Cybenetics Gold efficiency and operates with low noise. It measures 3.39 by 5.91 by 2.3 inches and weighs 3.9 pounds. This model suits users needing high wattage and modern connector support for advanced graphics cards.

Pros

• 850W output capacity
• Fully modular cable design
• ATX 3.1 compliance
• PCIe 5.1 support
• Cybenetics Gold efficiency

Cons

• Higher wattage than the 310W baseline
• Larger physical dimensions than compact units
• Heavier build at 3.9 pounds

Good fit if

• You need 850W for high-end components
• You require ATX 3.1 compatibility
• You want fully modular cables

Skip if

• You only need 310W or less
• You have a small form factor case
• You prefer lower wattage options

Verdict: Corsair RM850x Fully Modular ATX offers robust 850W power and modern ATX 3.1 support, making it ideal for systems requiring significant headroom and PCIe 5.1 readiness.

4 Also great

Corsair RM750x Shift White 750W ATX Power Supply

Best for: Modern ATX builds needing side-mounted connectors

Wattage

750W

Efficiency Rating

80 Plus Gold

Modularity

Fully Modular

ATX Version

ATX 3.1

Fan Size

140mm

PCIe Version

PCIe 5.1

View on Amazon: Corsair RM750x Shift White 750W ATX Power Supply Affiliate link

This Corsair unit delivers 750W with ATX 3.1 and PCIe 5.1 support. It features side-mounted modular connectors for easier cable management and a 140mm fan. The fully modular design uses micro-fit connectors to save space. Japanese electrolytic capacitors ensure reliability. It suits builders needing modern power standards and clean cable routing in ATX cases.

Pros

• Side-mounted modular connections for easier access
• ATX 3.1 and PCIe 5.1 certified
• 140mm fluid dynamic bearing fan
• Fully modular micro-fit connectors

Cons

• Larger 140mm fan may not fit small cases
• Heavier at 3.75 pounds
• Higher wattage than 310W alternatives

Good fit if

• You need ATX 3.1 compliance for new GPUs
• You want side-mounted connectors for cleaner builds
• You require 750W for high-end components

Skip if

• You need a compact 310W power supply
• You are building a small form factor PC
• You require a lower wattage for basic systems

Verdict: Corsair RM750x Shift 750W ATX 3.1 fits users building modern ATX systems who need side-mounted connectors and high efficiency. It is ideal for those prioritizing cable management and future-proof PCIe 5.1 support over compact size.

5 Best premium

Corsair RM1000e 1000W ATX Power Supply

Best for: high-performance desktops requiring 1000W

Wattage

1000 Watt

Efficiency Rating

80 PLUS Gold

Modularity

Fully Modular

Form Factor

ATX

Size

1000W

Dimensions

5.91 × 5.51 × 3.39 inches

View on Amazon: Corsair RM1000e 1000W ATX Power Supply Affiliate link

This Corsair unit delivers 1000W of power with 80 PLUS Gold efficiency. It features a fully modular design and dual EPS12V connectors for high-end builds. The low-noise operation suits quiet workstations. Its ATX form factor fits standard cases. You get reliable performance for demanding systems.

Pros

• 1000W output capacity
• 80 PLUS Gold efficiency rating
• Fully modular cable management
• Dual EPS12V connectors

Cons

• Larger physical dimensions than standard units
• Heavier weight at 3.66 pounds
• Higher wattage than typical 310W replacements

Good fit if

• You need high wattage for a powerful PC
• You want fully modular cables for clean builds
• You require dual EPS12V connectors for the CPU

Skip if

• You are replacing a small 310W unit
• You have a compact case with size limits
• You need a low-wattage budget solution

Verdict: Corsair RM1000e 1000W Gold ATX is a high-capacity choice for enthusiasts building powerful systems that require stable power and efficient operation.

6 Best 80 plus white

EVGA 500 W1 500W Power Supply

Best for: Basic desktop builds on a budget

Wattage

500W

Efficiency Rating

80+ WHITE

Dimensions

5.51 × 5.91 × 3.35 inches

Weight

4 pounds

View on Amazon: EVGA 500 W1 500W Power Supply Affiliate link

The EVGA 500 W1 delivers 500 watts of power with 80 Plus White certification. This rating ensures at least 80 percent efficiency under typical loads. It includes heavy-duty protections like over-voltage and short-circuit safety. The unit measures 5.91 by 5.51 by 3.35 inches. You will find it suitable for basic desktop builds that do not require high-end modular flexibility or higher efficiency tiers.

Pros

• 500W output capacity
• 80 Plus White certified efficiency
• Over-voltage protection included
• Compact physical dimensions

Cons

• Non-modular cable management
• 80 Plus White is the lowest efficiency tier
• No dual EPS12V connectors listed

Good fit if

• You need a budget-friendly 500W unit
• You are building a standard office PC
• You prioritize basic safety protections

Skip if

• You require fully modular cables
• You need 80 Plus Gold efficiency
• You are using high-end gaming GPUs

Verdict: EVGA 500W 80+ White PSU is a straightforward option for entry-level systems. It fits users who need reliable basic power without the cost of higher efficiency ratings.

7 Best mini itx

FSP 400W Gold Flex ATX Mini ITX Power Supply

Best for: Compact Mini ITX systems with low power needs

Wattage

400W

Efficiency Rating

80 Plus Gold

PCIe Connector Type

6+2 pin

Fan Size

4 cm

Form Factor

Mini ITX

Dimensions

5.9 × 1.6 × 3.25 inches

View on Amazon: FSP 400W Gold Flex ATX Mini ITX Power Supply Affiliate link

This FSP unit is a 400W power supply built for Mini ITX cases. It holds an 80 Plus Gold certification, meaning it converts more than 90% of electricity efficiently. The compact 4 cm fan keeps noise low while providing adequate airflow. You get one PCIe 6+2 pin connector for graphics cards. It fits small form factor builds that need reliable power without excessive bulk.

Pros

• 80 Plus Gold efficiency rating over 90%
• Compact 4 cm fan for low noise
• Includes one PCIe 6+2 pin connector
• High reliability with 100K hour MTBF

Cons

• Single PCIe connector limits GPU options
• 400W output may not support high-end GPUs
• Non-modular cable management in small cases

Good fit if

• You are building a Mini ITX system
• You need high efficiency for small spaces
• Your GPU requires only one power cable

Skip if

• You need multiple PCIe power connectors
• You plan to use a high-power GPU
• You require modular cable management

Verdict: FSP Mini ITX 400W Gold PSU suits compact builds with modest power needs. It delivers solid efficiency in a small footprint. Avoid it if your graphics card demands more than one PCIe cable.

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