1801 - Microcode Patch Error Processor not supported by ROM BIOS. Upgrade BIOS to proper version.

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.

find out your motherboard name,or use cpu-id to see it,and go to your motherboard page,and download latest bios,and flash it,that should fix the problem...

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.

I bought a Compaq Computer, 2.0Ghz, 256MB, 20GB for my College project. When i put the power on, it restarts almost immediately (so many times repeatedly). Then after such reboots, it successfully brings a message "1801 - Microcode Patch Error" and a F1-Boot directive.

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