CPU upgrade

[Lu66]

I intend to upgrade my CPU (currently I5 2400) with a more performing one. I would like to know which CPUs are compatible with my motherboard and which procedure to follow. Thanks

[Paul_Tikkanen]

Hi:

Below is the link to the HP quickspecs for your PC's model series.   

It has the list of supported processors by form factor.

HP Compaq Elite 8300 Business PC (itema-pg.com)

Below is the link to the service manual, where you can find the processor removal and replacement procedure by form factor...

c03612798.pdf (hp.com)

[Lu66]

Thanks for the reply. I have some doubts, BIOS update is not mentioned, is it not necessary?

[Paul_Tikkanen]

You're very welcome.

It shouldn't be necessary, but if you want to update the BIOS, you should use the F10 setup BIOS flash method to update the BIOS since the BIOS updates were not written to be run using Windows 10.

See this discussion for how to safely update the BIOS to the latest version...the links to the updates can be found on the link I posted within the below discussion.

Solved: Re: HP Compaq Elite 8300sff BIOS update for new CPU - HP Support Community - 8105829

[Lu66]

So you advise me to try to replace the CPU without updating the BIOS.  If that doesn't work, then update the BIOS?  Another question I ask is, in the documentation you sent me the links I saw that in the category of i5 CPUs my current i5 2400 is not mentioned, why?

Thanks 

[Paul_Tikkanen]

Hi:

Unfortunately, I wouldn't know why the i5-2400 processor your PC has was not included on the list.

I don't believe that a BIOS update is necessary unless you read all of the available release notes to see if support was added for additional processors, and I don't think there was.

Version 03.08 (latest one)

ENHANCEMENTS:
- Provides latest Intel Microcode versions 0x21 for Ivy Bridge processors and 0x2F for Sandy Bridge processors.

NOTE: Due to security changes, after loading this BIOS, older versions cannot be installed.

Cronologia delle revisioni

Versione: 00.03.07 Rev.A

Correzioni incluse in questa versione: NOTE: Due to security changes, after loading this BIOS, older versions cannot be installed. - Provides latest Intel Microcode versions 0x20 for Ivy Bridge processors and 0x2E for Sandy Bridge processors.

Versione: 00.03.06 Rev.A

Correzioni incluse in questa versione: - Provides the latest Intel Microcode versions 0x1F for Ivy Bridge processors and 0x2D for Sandy Bridge processors.
- Adds a new BIOS Setup policy to allow the Power On Password prompt when Wake On LAN is enabled. NOTE: This new setting will be enable by default, and will prompt for Power On Password during a Wake on LAN event.

NOTE: Due to security changes, after loading this BIOS, older versions cannot be installed.

Versione: 03.04 Rev.A

Correzioni incluse in questa versione: - Added Security Update.

Versione: 03.03 Rev.A

Correzioni incluse in questa versione: - Fixed F10 "BIOS Power On" issue where TIME was not getting saved unless cursor (focus) remained on TIME setting in F10 menu. *** ALERT *** ALERT *** ALERT ***

If upgrading from a v02.xx to this version, v03.00, the user MUST FIRST FLASH TO v02.99.
If not, upgrading to v03.xx will be rejected.

Versione: 03.02 Rev.A

Correzioni incluse in questa versione: - Fixed issue where TPM was enabled without Setup Password enabled.
– Fixed issue where AMT Enable was getting grayed in F10 when not properly provisioned.
- Fixed Wake On LAN (usually wake by magic packet) to Disable (BIOS) Fast Boot so Remote Wakeup Boot Source will execute.
- Fixed BiosConfigUtility in setting Legacy and UEFI Boot Sources.
- Fixed the Master Boot Record Security in F10 Menu and to allow MBRBackup to be updated.
- Updated the BIOS Power On support.
- Updated USB support. *** ALERT *** ALERT *** ALERT ***

If upgrading from a v02.xx to this version, v03.00, the user MUST FIRST FLASH TO v02.99.
If not, upgrading to v03.00 will be rejected.

- Implemented Roll Back prevention.
- Added improved Security Updates.

*** ALERT ***

This release improved Security Updates implementation. HP strongly recommends promptly
transitioning to this BIOS version. Due to security changes, after this BIOS
update has been installed, previous BIOS versions cannot be reinstalled.

Versione: v02.99 Rev.A

Correzioni incluse in questa versione: - Customers MUST flash this BIOS first, before flashing to the v03.xx versions.
- Added enhancement to allow for flashing forward to v03.xx.
- This is the same version as v02.98.

Versione: v02.98 Rev.A

Correzioni incluse in questa versione: - Fixed for AMT Watchdog Timers when disabled in F-10 the timers are no longer active.
- Fixed the Boot Order status and sequence listed in CPQSetup.txt to be the same as in F10 Menu, Setup.
- Fixed the possible TXT/TPM issue in F10 Menu where both TXT and TPM options could be greyed-out in the F10 Setup.
- Fixed intermittent S3 hang during the resume cycle.
- Fixed the Boot Order displaying incorrectly in F10=Setup when the Network Controller is Disabled.
- Fixed the TPM1.2 device not being accessible in Device Manager and TPM.MSC after resetting the TPM. - Flash Back Restrictions to previous BIOS versions.

ALERT: This BIOS includes critical updates. Once the system is updated to this
version, rollback to previous versions is restricted. This restriction
also applies to BIOS recovery files.

- Added UEFI and UEFI Variables Security Updates.

[Lu66]

I got the following information about my PC via CPU-Z

BIOS K01 V02. 90 DATE 07/16/2013.

CHIPSET SANDY BRIDGE R. 09.

SOUTHBRIDGE Q77 R. 04.

MOTHERBOARD 3396

I have a hypothesis about the presence of an I5 2400 in my PC. As this PC was purchased as refurbished, could the CPU have been replaced by basically downgrading? In fact, I found advertisements on the internet that match the I5 2400 CPU with the HP COMPAQ 8200 ÉLITE model.

[Paul_Tikkanen]

Hi:

Yes, either that is possible, or one of the i3-21xx processors were removed and the PC actually upgraded to the i5-2400.

If you enter the serial number of your PC in the box at the link below, it should tell you what processor HP originally installed in your PC.

HP PartSurfer

[Lu66]

Thank you very much for the information and help. I went to the link you indicated and I entered the serial number of the PC along with the product number. a list of parts came out but not the CPU. I then tried to enter only the product number and instead came out the list of CPUs that can be mounted on that product.

[Paul_Tikkanen]

You're very welcome.

Well...I guess we will never know what processor HP originally installed in your PC.  ☹️