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About this product
Product Identifiers
BrandHP
MPN749554001
GTIN0855909007588
UPC0855909007588
eBay Product ID (ePID)1467892118
Product Key Features
Fan Light ColorSilver, Black
Maximum Fan Speed3800 RPM
Compatible BrandFor HP
ColorBlack
Voltage12 V
Socket CompatibilitySocket P, LGA 2011-v3, LGA 2011/Socket R
Bearing TypeBall
MaterialPlastic, Copper, Aluminum
To FitGPU Processor
Fan Diameter92 mm
TypeCPU Fan with Heatsink
Dimensions
Item Height5
Ratings and reviews
Most relevant reviews
- 20 Jul, 2016
HP Z420 high cpu temps problem - solved!
The CPU heatsink and fan in my recently acquired HP Z420 desktop workstation weren't up to the job of cooling its Xeon E5-1650 6-core processor, as evidenced by CPU temps well above the 65 degree max operating temperature when running at 25% capacity or higher for any length of time. Max CPU temps for heavy processing jobs maxed out at 80+ degrees. I'd investigated and followed up on all the usual suspects, i.e. accumulated dust, dried out thermal compound, fans' operation and internal airflow without any significant change. I saw that others online had run into similar problems and saw lots of frustration but no solutions. Then I realized that HP had redesigned the CPU heatsink and fan for the newer Z440 workstation and it all made sense: their solution was increasing the size and efficiency of this unit. I checked the internals - height, existing obstructions on the motherboard, etc. and all looked fine. The one concern I had was with the new unit's fan connector with 6 pins instead of the 5-pins used on the Z420 motherboard. Looking closely at the wiring and how the connector attached I determined that I could use it without needing to rewire the 6-pin connector or exchange it for the connector on the Z420. When this unit arrived I had no trouble at all installing it, and my CPU temps have remained in the normal range no matter the load. I ran some tests which stressed both the CPU and GPU processors and was pleased to hear the CPU fan speed up under heavy loads, so no worries about the 6-pin connector wiring or ability to work with the Z420 motherboard. Idle temps are now 10+ degrees lower (40 vs 50-55) and typical processing temps, i.e. for normal loads, stay under 50 degrees on all cores. Problem solved!Verified purchase: YesCondition: Pre-owned
- 29 Aug, 2023
Uses same fan as the standard Z4 G4 heatsink (3 pipe), just need a 5 pin connector and rewire.
When I upgraded to a i9-9900 on my Z4 G4 I was getting a CPU heatsink error. Turns out this heatsink uses 4 pipes instead of 3 and the fan is the same as the standard heatsink. However the fan on this heatsink is a 6 pin and the standard Z4 G4 is a 5 pin. All you need to do is to rewire one of the fans so there is a jumper going from pin 3 to pin 5.Verified purchase: YesCondition: Pre-owned
- 09 Nov, 2019
Upgrade the Z420!
I upgraded my Z420 from 1620v2 to a 2667v2. This heatsink is centered and has four tubes rather the three of a stock Z420. With 100% usage of all cores. It keeps the temp well below the max operating temp. But you will have to use the original fan. Hp makes them board specific. But it fits perfectly. Happy upgrading!Verified purchase: YesCondition: Refurbished
- 30 Nov, 2021
Great Price for Heat Sink.
Arrived on time and packaged well and clean. Used to upgrade the cooler on the second processor of a z620 workstation. The difference is that the z620 heat pipes are on top of the cooling block while the z640 heat pipes are integrated into the cooling block. The z620 heat block can warp over time while the z640 dose not.Verified purchase: YesCondition: Pre-owned
- 01 Mar, 2025
Quick and easy upgrade for an older syst...
Quick and easy upgrade for an older system.Verified purchase: YesCondition: Pre-owned
- 07 Apr, 2023
HP Z440 Z640 CPU Heatsink
Very good deal, work well after cleaning, low noise.Verified purchase: YesCondition: Pre-owned
- 17 Feb, 2021
Quiet with Excellent Thermals
Quiet with excellent thermals. For the Z440 motherboard this is an excellent value.Verified purchase: YesCondition: Pre-owned
- 29 Jan, 2021
Worked well
Worked like a champ in a Z4G4 (with a special cable I ordered, do a google search)Verified purchase: YesCondition: Pre-owned
- 16 Feb, 2025
highly satisfied with the cpu heatsink...
highly satisfied with the cpu heatsinkVerified purchase: YesCondition: Pre-owned
- 13 Nov, 2022
very nice
very niceVerified purchase: YesCondition: Pre-owned
