how to fix "1801-Microcode Update Error" in HP Compaq dc7800 Convertible Minitower

[aminiqbal2004]

I have Intel Core 2 Duo @ 2.93 Ghz. My operating system is Windows 7 Ultimate x64. 

[Paul_Tikkanen · Accepted solution]

Hi:

The E7500 processor is not supported in the dc7800, which is why you are getting the microcode error.

Below is the list of supported processors.

Intel Core 2 Duo Processors:

Intel Core 2 Duo E4500 Processor (2.20-GHz, 2 MB L2 cache, 800-MHz FSB)

Intel Core 2 Duo E4600 Processor (2.40-GHz, 2 MB L2 cache, 800-MHz FSB)

Intel Core 2 Duo E4700 Processor (2.6-GHz, 2 MB L2 cache, 800-MHz FSB)

Intel Core 2 Duo E6550 Processor (2.33-GHz, 4 MB L2 cache, 1333-MHz FSB)

Intel Core 2 Duo E6750 Processor (2.66-GHz, 4 MB L2 cache, 1333-MHz FSB)

Intel Core 2 Duo E6850 Processor (3.0-GHz, 4 MB L2 cache, 1333-MHz FSB)

Intel Core 2 Duo E7200 Processor (2.53 GHz, 3 MB L2 cache, 1066 MHz FSB)

Intel Core 2 Duo E7300 Processor (2.66 GHz, 3MB L2 cache, 1066 MHz FSB)

Intel Core 2 Duo E8200 Processor (2.66-GHz, 6 MB L2 cache, 1333-MHz FSB)

Intel Core 2 Duo E8300 Processor (2.83-GHz, 6 MB L2 cache, 1333-MHz FSB)

Intel Core 2 Duo E8400 Processor (3.00-GHz, 6 MB L2 cache, 1333-MHz FSB)

Intel Core 2 Duo E8500 Processor (3.16-GHz, 6 MB L2 cache, 1333-MHz FSB)

Inter Core 2 Duo E8600 Processor (3.33-GHz, 6 MB L2 Cache, 1333-MHz FSB)

As a long shot, you can try installing the latest microcode update. You need to use a bootable USB flash drive with dos files so you can run the flashbin.exe command after you copy the microcode update files to your bootable flash drive.

I can't get to the dc7800 support site. When you can, select the microcode update download from 2010  v1.14

If you are unfamiliar with how to make a flash drive bootable, here is a good "how to" article with the files you need.

http://www.techpowerup.com/forums/showthread.php?t=47812

Paul

[pheonix028]

I need help!

I have the core 2 e8400(upgraded with pc7800) and the 1801-Microcode Update Error.

But all the fans on my pc spins at full speed, really loud and anoying.

Need fix plz

[Cloud_Strider]

@pheonix028,

I understand you are receiving an 1801-microcode error.

Is the system able to boot into Windows at all?

What is the product number?

NOTE: Do NOT provide the serial number.

[pheonix028]

thx for relpy but all I had to do was update the bois.

Problem solved 🙂

[Cloud_Strider]

You are most welcome.

Thanks for updating the community with your solution.  🙂

[Fakhar_Fud]

I am recieving Microcode update error, my pc is dc7100 small form factor, I updated the BIOS but the problem still presists and i want to get rid of this. please help me. using Win XP professional. I chaged my processor form 2.8 GHz to 3.4 GHz.

[manoja]

I hv upgraded my pc dc7800p frm 2.33 Ghz to 3 Ghz E8400 n its doing a error microcode update wt shld i do plz help

[Paul_Tikkanen]

Hi:

Please read my post above marked Solved.

You need to install the latest microcode update from the dc7800 support and driver page by using a bootable usb flash drive.

[manoja]

Bt hw whr cn i gt the files