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‎11-23-2022 12:19 PM

HP Recommended
Product: HP EliteBook 8740w Base Model Mobile Workstation
Operating System: Microsoft Windows 10 (64-bit)

Hello

 

Specs:

NvIdia Quadro M4000M

CPU to i7 Q 840

RAM to 16Gb

 

I recently upgrade my graphic card to NvIdia Quadro M4000M.

I CNC Milled the heatsink so it can fit to graphic card.

Using Noctua NT-H2 cooling paste for CPU and K5-PRO paste instead of pads.

I have fresh installed Windows 10 (64bit) and updated fully and allso updated all drivers.

I allways update drivers directly in device manager so i don't install any software. Only NvIdia controll panel.

 

The problem is in cooling fan speed. It is all the time loud and working hard.

I read about that this things can happen becouse of graphic card upgrades/changes. Some driver isshues or something like that. 

 

I was reading many forums so i manage to update drivers for NvIdia graphic card from driver package 526.67 and allso modified some lines in driver list file to get them installed. It suport the Quadro M4000M but it's not listed in the driver list files.

 

I use HWMonitor to monitor the temps and i got greate readings....

CPU cores on 40C

GPU on 30-40C

 

The fan speed is running on one speed only and don't adjust it. So when i run it it kicks in and doesn't matter what temperature readings i got, fan speed is all the time same.

 

Strange is HWMonitor readings for HP 1520 motherboard

I got this short names for temps on motherboard:

PWMZ:   53C                   All the time same, never changes?

LOCZ:     34C                   Changeing for +-5C

BATZ:     20C                   All the time same, never changes?   If this is battery i don't use it. Only power brick

EGXZ:     85C                   All the time same, never changes?

CPUZ:     39C                   Changes from 38C - 63C

PCHZ:     59C                  All the time same, never changes?

PCH:          0C                  Strange reading?

 

Does anyone know what are this names meanings? The letter Z at the end of all i supose mean ''zone''?

 

Allso i can't find any fan speed readings. No in HWMonitor.

 

I allso read about upgradeing BIOS. So i upgrade it to F.40 and later to latest i find F.60 (sp73912.exe)

Suporrted my laptop for VB744AV

In BIOS i don't have any informations about fan speed allso. BIOS GUI is a bit lacking in informations like old bios on my older PC.

 

I can't find the solution for this fan problem.

 

Thanks for any informations or sugestions 🙂

 

 

Version informations:

Windows 10 Pro for Workstations version: 10.0.19045

BIOS: HP 68CAD Ver. F.60 (10.11.2015)

SMBIOS: 2.6

Motherboard: KBC Version 33.32

Abstraction hardware version: 10.0.19041.2251

Graphic BIOS: 84.04.9B.00.15

Graphic driver version: 31.0.15.2667 (NvIdia 526.67) DCH / Win 10 64

 

 

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