My compaq computer displays 1801-microcode patch error -missing or invalid processor microcod patch please contact compaq computer corporation For a new rom processor stepping what do i do

NO PC stated ,wow now that is hard , no? 1984 to 2018 PCs (1000s of types made !)
compaq to 2013 ends.
NO OS stated, windows, yes?, what windows, XP, vista ,what?

seems to me, the BIOS barfs on your Processor.
my guess is you changed mother boards, and used the wrong processor.? (or the reverse)
learn that the BIOS must be able to recognize the processor in the POST process.
(for sure lots of causes other)
does it do that (laptop) with the main battery the huge heavy battery , that is now shorted and dead.?
you post and not even say desk or laptop. wow.
is it a Proliant Server? or Z600 with 2 non matching Xenon processors, gee, must I guess it all?>
why not just post your service tag data.
and say what OS is running, even windows servers.


the HP manuals on your PC clearly state what processor on that exact model and P/N on the service tag.
clear as day.
as will the hp parts surfer.
varies by country too.
see this, if you answer all the questions there, bingo what yours had and what processor options are supported.
on newer PC HP 10 years or less the BIOS update page also lists added processors under"details" there you go.
http://partsurfer.hp.com/search.aspx

http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareDescription.jsp?lang=en&cc=us&prodTypeId=12454&prodSeriesId=96295&prodNameId=97121&swEnvOID=1093&swLang=13&mode=2&taskId=135&swItem=PSG_I15378-37635

And follow the instructions here to upgrade the BIOS. I suggest using their instructions as they will be far more accurate than mine for this specific system and BIOS update.

The 1801 error is defined as:
Missing or invalid Processor Microcode Patch.

Resolved by:
Applying a new ROM BIOS to support the processor stepping.
In other words, you need a BIOS upgrade. Contact your BIOS vendor and get support for your new processor.

from the error code i am going to quess you have a compaq
ok and i hope this helps download the following.
Presario Desktop Models System ROM Update (686Y2 Family ROM) and please read the directions to download. I have made a lot of assumptions here, i dont know your OP system and guessing on the machine type so please bare with me. Best of luck Mel

did you flash the bios for the MOBO ?

http://admin.utep.edu/Default.aspx?tabid=56

Try downloading the 815 motherboard drivers on the right side of the page.

These are very different CPU's, and you should make sure the board accepts the new one. Check the manual.

When I Power On The PC And I Hit Del To Inside The Bios To Slow And Every

ya'll need to flash (upgrade) your motherboard BIOS to allow it to be compatible with the new CPU's.

not being rude but take it to a tech. if you have to ask then you really shouldnt be tinkering with your gear as you can mess it up really bad and possibly render it unuseable