Showing results for 
Search instead for 
Did you mean: 
New member
1 0 0 0
Message 1 of 2
Flag Post

1801 -Microcode Update Error

HP Recommended
DC7900 sff
Microsoft Windows 10 (64-bit)


I would like to know what BIOS version is required on a DC7900 system with E6300 processor so that 1801-Microcode Update Error does not appear at startup. Currently the BIOS version is 786G1 v01.27. Thank you!
Level 21
Level 21
135,168 124,524 20,721 31,813
Message 2 of 2
Flag Post
HP Recommended



Below is the link to the HP Quickspecs for the dc7900 model series.


The list of supported processors can be found on pages 9 & 10, and the E6300 is not one of them.


That is why you are getting the microcode error and there is nothing you can do to fix it other than to install one of the supported processors listed.

Was this reply helpful? Yes No
Warning Be alert for scammers posting fake support phone numbers and/or email addresses on the community. If you think you have received a fake HP Support message, please report it to us by clicking on "Flag Post".
† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the Terms of Use and Rules of Participation