750-AAYL: Dell PowerEdge R740 High Performance Fan Module (Gold Grade)
Also listed as: 01979N, 1979N · made by Delta Electronics
The Dell 750-AAYL is a Dell PowerEdge R740 High Performance Fan Module (Gold Grade) delivering targeted cooling airflow and thermal stability for Dell PowerEdge R740, R740XD servers.
Specifications
| Part number | 750-AAYL |
|---|---|
| Brand | Dell |
| Made by | Delta Electronics |
| Type | Fans |
| Other numbers | 01979N, 1979N |
| Status | current |
| Form factor | Hot-Plug 60mm Dual-Rotor Server Cooling Fan Module |
| Speed | Up to 16,500 RPM |
| Generation fit | 14th Generation PowerEdge (R740 / R740xd) |
About the 750-AAYL
The Dell 750-AAYL is a Dell PowerEdge R740 High Performance Fan Module (Gold Grade) engineered to deliver high-velocity cooling airflow across internal server components. Featuring a dual-rotor counter-rotating motor design, the 750-AAYL provides static pressure to cool high-wattage processors, memory banks, and expansion cards in high-density Dell PowerEdge chassis. The 750-AAYL maintains safe operating temperatures under continuous datacenter computing loads.
Compatibility
Designed specifically for Dell PowerEdge R740, R740XD servers, the 750-AAYL installs into the central hot-plug fan bay. The 750-AAYL integrates with chassis fan brackets and connects through blind-mate power pins for tool-less replacement during server operation.
How to identify a genuine unit
Genuine Dell 750-AAYL fans display a factory label showing DP/N 01979N, Delta or NMB manufacturer markings, and operating voltage/amperage specifications. In iDRAC Fans inventory, the 750-AAYL fan reports real-time RPM speed and operational health status, allowing predictive maintenance alerts.
Buying used
When evaluating a pre-owned 750-AAYL, spin both fan rotors manually to ensure bearings rotate smoothly without grinding, resistance, or wobbling. Check the plastic housing and blind-mate connector pins on the 750-AAYL for physical damage. Confirm in iDRAC that the 750-AAYL modulates PWM speed normally under thermal stress.
Fits these models
Check compatibility with Dell
Before you buy, confirm the exact configuration against the vendor's own lists: firmware levels, operating systems, adapters and optics that Dell has tested with the Dell 750-AAYL.
- Compatibility Dell E-Lab Navigator (storage and SAN interoperability) (free vendor sign-in)
- Support Dell Support: drivers, manuals and service tag lookup
Equivalent part numbers
- Dell 1979N Dell direct spare part number for R740 High Performance Fan
FAQ
How can I tell the difference between Standard and High Performance fans?
High Performance fans feature an orange/gold label band and higher amp ratings compared to silver-labeled Standard fans.
Can I mix Standard and High Performance fans in the same server?
No, Dell requires all six fan bays to be populated with identical fan grades for balanced chassis pressure.
Buying or selling 750-AAYL?
New, refurbished or used. Tell us the quantity and condition and we connect you with a vetted reseller in your region, usually within one working day.
Sources
- Dell PowerEdge R740 Cooling Fan Specifications and Replacement Guide, checked 2026-10-27