Lenovo Thinkcentre M57 6395-AB5 BIOS Intel Core 2 Duo E8400

big t · Sat Dec 25, 2010 12:00 am

Hello,

I'm new here, so there's my problem:

I have Lenovo Thinkcentre M57 6395-AB5 USFF PC. Decided upgrade CPU from E2160 (M0 Core Stepping) to E8400 (E0 core stepping), as it is stated that E8400 is supported by 6395 system:

http://www-307.ibm.com/pc/support/site. ... MIGR-69254

My BIOS update version 54KT23A is the latest, downloaded from there:

http://www-307.ibm.com/pc/support/site. ... MIGR-69695

As I see from BIOS flash files there's CPU microcode for E8400 C0 stepping only.

When I installed my E8400 E0 stepping, got two beeps and POST error "167 no processor BIOS update found" and FAN goes at full speed (about 5500 rpm all the time). It continues to load to windows. In windows environment all seems ok, despite constant full speed fan. So it seems E8400 E0 stepping is physically supported by my system.
I have googled for the info, and found out that my BIOS version needs to be updated with E8400 E0 core stepping CPU 1067A microcode. Maybe somebody can help me with adding E8400 E0 core stepping CPU 1067A microcode to my BIOS flash files?

Intel Dual-Core E2160 (M0 Core Stepping) info:
http://www.cpu-world.com/sspec/SL/SLA8Z.html

Intel Core 2 Duo E8400 (E0 Core Stepping) info:
http://www.cpu-world.com/sspec/SL/SLB9J.html

Mon Dec 27, 2010 11:25 am

What puzzles me is they say you can only fit 45W TDP processors, yet the E2160 is a 65W one. I think you want to fire an email to Lenovo support asking them what is the deal on this machine...

big t · Mon Dec 27, 2010 11:51 am

edwin wrote:What puzzles me is they say you can only fit 45W TDP processors, yet the E2160 is a 65W one. I think you want to fire an email to Lenovo support asking them what is the deal on this machine...

Hello,

Maybe you know any Levono support email addresses? Because I can't find it on the net.

Mon Dec 27, 2010 3:18 pm

the last CPU updates were included in version 11 of the bios from what I see here:
http://download.lenovo.com/ibmdl/pub/pc ... y23usa.txt

hmm they don't seem to have an email address indeed, just a set of support forums:
http://forums.lenovo.com/

big t · Mon Dec 27, 2010 3:42 pm

They added E8400 C0 core stepping microcode only, In my case I need E8400 E0 core stepping 1067A microcode to be added. Yes I wrote my issue to lenovo support forum too, but still no replies.