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74P4456 ✓ Verified by PartsTable
IBM · POWER_SUPPLY · HOTPLUG_PSU
WHAT YOU NEED TO KNOW
Hotplug PSUs are very sturdy — rarely see warranty claims. Safe bet. Always make sure they're tested. Key checks: Make sure tested.
PRODUCT OVERVIEW

IBM XSeries 236 670W Power Supply. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
POWER_SUPPLY→ HOTPLUG_PSU→ 74P4456
SPECIFICATIONS
Part Number74P4456
ManufacturerIBM
Wattage670W
COMPONENT DIAGRAM
PULL TAB AIRFLOW 670W PLATINUM 100-240V~ 50/60Hz IBM BACKPLANE CONN ~200 mm HOT-PLUG POWER SUPPLY | 670W | Platinum AC input 100-240V | Redundant pair required | Match wattage in same chassis TITLE PSU 670W PN 74P4456 MFR IBM Platinum
KEY FEATURES
•
670W Power Rating
TYPICAL APPLICATIONS
  • Server power supply replacement (failed or degraded)
  • Redundant power upgrade for high-availability
  • Power capacity upgrade for GPU or expansion configurations
  • Hot-swap power maintenance in production environments
  • Spare inventory for break-fix operations
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
74P4455Compatible
IBM RPS 670W for x236 - P/N
compatible
39Y7343Compatible
IBM RPS 670W for x236 - P/N
compatible
39Y7344Compatible
IBM RPS 670W for x236 - FRU
compatible
LIFECYCLE
StatusUNKNOWN
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 3
39Y7344SUBSTITUTE
IBM RPS 670W for x236 - FRU
IBM
39Y7343SUBSTITUTE
IBM RPS 670W for x236 - FRU
IBM
74P4455SUBSTITUTE
IBM RPS 670W for x236 - FRU
IBM
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FREQUENTLY ASKED QUESTIONS
What is 74P4456?
74P4456 is a IBM XSeries 236 670W Power Supply manufactured by IBM. It is classified as a POWER_SUPPLY (HOTPLUG_PSU).
What parts can replace 74P4456?
There are 3 known substitutes for 74P4456: 74P4455, 39Y7343, 39Y7344. Substitute compatibility should be verified for your specific system.
Is 74P4456 still available?
74P4456 is currently Unknown.
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Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
Last verified: July 2026