• ×
    Information
    Need Windows 11 help?
    Check documents on compatibility, FAQs, upgrade information and available fixes.Windows 11 Support Center.
  • post a message
  • ×
    Information
    Need Windows 11 help?
    Check documents on compatibility, FAQs, upgrade information and available fixes.Windows 11 Support Center.
  • post a message
Guidelines
Are you having hardware issues? Click here for tips and tricks.
HP Recommended
Dc7900
Microsoft Windows 10 (64-bit)

What's are technical differences between the dc7900 usdt and the dc7800 usdt?

1 ACCEPTED SOLUTION

Accepted Solutions
HP Recommended

Hi, @Avalonhaze 

 

dc7900:

 

http://static.highspeedbackbone.net/pdf/13029_na-2.pdf

 

dc7800:

 

http://www.nordykassociates.com/pdf/dc7800%20QuickSpecs.pdf

 

The biggest difference is the dc7900 USDT can take 8 GB of memory while the dc7800 can only take 4.

 

The dc7900 can take up to the E8600 processor and the dc7800 the E8500.

 

dc7800 has the intel series 3 chipset and the dc7900 has the intel series 4 chipset (which is why it can take more memory).

 

I do not own either model so I am unfamiliar with the BIOS settings.

 

I do own both a dc7800 and dc7900 CMT and the BIOS settings are almost identical.

 

The dc7900 BIOS adds support for stringent security which if enabled, prevents the BIOS password jumper from clearing the password.

 

The last BIOS update for the dc7800 added AHCI support which was a nice addition.

 

I used to have the BIOS set to RAID but now I changed it to AHCI, since I only use it with one solid state drive.

 

Both models will run W10 and I found that the W7 audio driver works better on W10 than the generic one that Microsoft installs.  Both models use the same audio driver.

View solution in original post

4 REPLIES 4
HP Recommended

please spend some time reading the hp "quickspecs" on both models and you will have your answer

 

to locate the quickspecs, google is your friend IE, google HP dc7900 quickspecs

HP Recommended

Hi, @Avalonhaze 

 

dc7900:

 

http://static.highspeedbackbone.net/pdf/13029_na-2.pdf

 

dc7800:

 

http://www.nordykassociates.com/pdf/dc7800%20QuickSpecs.pdf

 

The biggest difference is the dc7900 USDT can take 8 GB of memory while the dc7800 can only take 4.

 

The dc7900 can take up to the E8600 processor and the dc7800 the E8500.

 

dc7800 has the intel series 3 chipset and the dc7900 has the intel series 4 chipset (which is why it can take more memory).

 

I do not own either model so I am unfamiliar with the BIOS settings.

 

I do own both a dc7800 and dc7900 CMT and the BIOS settings are almost identical.

 

The dc7900 BIOS adds support for stringent security which if enabled, prevents the BIOS password jumper from clearing the password.

 

The last BIOS update for the dc7800 added AHCI support which was a nice addition.

 

I used to have the BIOS set to RAID but now I changed it to AHCI, since I only use it with one solid state drive.

 

Both models will run W10 and I found that the W7 audio driver works better on W10 than the generic one that Microsoft installs.  Both models use the same audio driver.

HP Recommended

Wow very in-depth, exactly what I needed thank you.

HP Recommended

You're very welcome.

† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the <a href="https://www8.hp.com/us/en/terms-of-use.html" class="udrlinesmall">Terms of Use</a> and <a href="/t5/custom/page/page-id/hp.rulespage" class="udrlinesmall"> Rules of Participation</a>.