HP 450 G5 coffee lake driver missing (i7-8550U)

[hobbitmann]

I recently reinstalled windows 11 22H2. The other drivers just installed fine but my audio driver was missing, the only driver I see is the Kaby lake driver which won't install cause I'm on coffee lake. Do you guys have any link to the coffee lake driver?

[ub6424]

Hello @hobbitmann 

Sorry to hear that you are having problems ... I would like to help you.

Let me check your basic system configuration.

(1) Run    msinfo32

- Select <System Summary>:

--->>> Copy/screenshot/paste following key/value pairs:

OS Name

Version

System Model

System SKU ( equals HP product number (p/n) )

Processor

BIOS Version/Date

BaseBoard Product

BaseBoard Version

(2) Start Windows <Device Manager>

- Expand <Audio inputs and outputs>

- Expand <Display adapters>

- Expand <Network adapters>

- Expand <Sound, video and game controllers>

- Expand <Other devices> ? (Those entries are for hardware for which Windows has not loaded a suitable driver)

--->>> Send screenshot

(3) Please report back

[hobbitmann]

[ub6424]

Hello @hobbitmann 

Thanks for reporting.

(1) Your Intel Core i7-8550U Processor is Kaby Lake R

(2) Download and install BIOS Update

HP Firmware Pack (Q85)

01.22.00 Rev.A

9.6 MB

Nov 8, 2022

Download

Fix and enhancements: ( 01.22.00 Rev.A and 01.21.00 Rev.A )

- Addresses security vulnerabilities CVE-2022-26845, CVE-2022-27497, CVE-2022-29893, and CVE-2022-33159.
- Addresses security vulnerabilities CVE-2022-27538.
- Updates the Intel silicon reference code to enhance compatibility.
- Provides the following firmware:
Embedded Controller (EC), version 02.41.00
Intel GOP, version 9.0.1067 B4
Intel Management Engine Consumer, version 11.8.93.4323 v3 (Production)
Intel vBIOS, version 9.0.1052 B3
Intel/Realtek PXE ROM RTL8111, version 2.65
Intel/Realtek PXE ROM RTL8153, version 2.019 (2016/06/28)
Intel/Realtek UEFI PXE ROM RTL8111, version 2.039
NVIDIA vBIOS, version 82.08.70.00.59
USB Type-C Power Delivery (PD) Firmware (CCG4), version 8.10

- Fixes an issue where a system that enters Sleep Mode unexpectedly wakes a short time later.
- Addresses security vulnerabilities CVE-2022-31635, CVE-2022-31636, CVE-2022-31637, CVE-2022-31638, CVE-2022-31639.

- Addresses security vulnerabilities CVE-2022-31640, CVE-2022-31641, CVE-2022-31642.

- Provides the following firmware: Embedded Controller (EC), version 02.3F.00 Intel GOP, version 9.0.1067 B4 Intel Management Engine Consumer, version 11.8.90.3987 (Production) Intel vBIOS, version 9.0.1052 B3 Intel/Realtek PXE ROM RTL8111, version 2.65 Intel/Realtek PXE ROM RTL8153, version 2.019 (2016/06/28) Intel/Realtek UEFI PXE ROM RTL8111, version 2.039 NVIDIA vBIOS, version 82.08.70.00.59 USB Type-C Power Delivery (PD) Firmware (CCG4), version 8.10
- Addresses security vulnerabilities CVE-2022-31635, CVE-2022-31636, CVE-2022-31637, CVE-2022-31638, CVE-2022-31639.

- Addresses security vulnerabilities CVE-2022-31640, CVE-2022-31641, CVE-2022-31642.

- Provides the following firmware: Embedded Controller (EC), version 02.3F.00 Intel GOP, version 9.0.1067 B4 Intel Management Engine Consumer, version 11.8.90.3987 (Production) Intel vBIOS, version 9.0.1052 B3 Intel/Realtek PXE ROM RTL8111, version 2.65 Intel/Realtek PXE ROM RTL8153, version 2.019 (2016/06/28) Intel/Realtek UEFI PXE ROM RTL8111, version 2.039 NVIDIA vBIOS, version 82.08.70.00.59 USB Type-C Power Delivery (PD) Firmware (CCG4), version 8.10

Why should you install the update ?

https://support.hp.com/us-en/document/ish_4123786-2338478-16

Quote: "

Updating the BIOS is recommended as standard maintenance of the computer. It can also help resolve the following issues:

- An available BIOS update resolves a specific issue or improves computer performance.

- The current BIOS does not support a hardware component or a Windows upgrade.

- HP Support recommends installing a specific BIOS update.

"

(3) Reboot

(4) Let BIOS be installed until it's completely done !

(5) Download and install / update

Intel Management Engine Driver

2238.3.31.0 Rev.A

267.3 MB

Oct 21, 2022

Download

Conexant HD Audio Driver - Kaby Lake

12.73.1.142 Rev.Q

612.3 MB

May 12, 2022

Download

(6) Restart Windows

(7) Test your notebook

(8) Please report back

[hobbitmann]

Did all the said things above. The installer now says "failed to extract cab"

[ub6424 · Accepted solution]

Hello @hobbitmann 

I double checked...

(1) Latest driver package sp140283.exe is corrupted, checksum failed

Conexant HD Audio Driver - Kaby Lake

12.73.1.142 Rev.Q

612.3 MB

May 12, 2022

Download

(2) Previous driver package sp119373.exe is good, checksum OK

Conexant HD Audio Driver - Kaby Lake

12.73.1.140 Rev.Q

613.4 MB

Jul 9, 2021

Download

(3) Please download and install previous driver (2)

(4) Please contact HP Support, they should provide a new checksum tested package on the HP Support and Drivers page.

(5) Please report back

[hobbitmann]

Worked. Thanks for the help.

[ub6424]

Hello @hobbitmann 

The pleasure is mine !

Kind regards