06-24-2015 12:53 AM
Hello, as the title says.. Can I expect this CPU to work? Do I need something else than BIOS update -
I have the latest 2EKT46A, dated 6/2/2009 (http://support.lenovo.com/us/en/downloads/ds000714)
If not what are my other CPU options? Any help is appreciated.
06-24-2015 09:44 AM
Well, it didn't worked
The machine is M52 8215 D1G, original CPU is Pentium-4 640 3.00 GHz Prescott, stepping N0, SL7Z9
The new CPU that didn't worked is Pentium D 830 3.00 GHz Smithfield, stepping B0, SL8CN
In the specs here: http://support.lenovo.com/us/en/documents/pd006096
Pentium D 830 is listed as a supported CPU
I am using the latest BIOS from here: http://support.lenovo.com/us/en/documents/pd006096
The changelog mentions added support to stepping D0 CPUs - does that means that all up to D0 are
supported, or only D0?
Also here: http://support.lenovo.com/us/en/documents/pd000810 both Smithfield and Presler Pentium D are
listed as supported..
Somewhere I've found that only 8215 CTO types are with Pentium D. Mine is 8215 D1G..
Is that a hardware difference or just different peripheral equipment?
And last - in the BIOS update I noticed an option to change the machine type and serial number - will that
enables the Pentium D to work if I change the machine type from D1G to CTO or I will brick it?
Many questions, some answered myself.. but If anyone have experience and knowledge - please share..
07-06-2015 03:00 PM - edited 07-06-2015 03:06 PM
The stepping needs to be the same as the Lenovo installed processor.
10-30-2017 04:22 AM
It's an old thread but posting here in case someone is interested:
Pentium D 925 3.0 GHz (SL9KA) worked with the latest bios. CPU is detected properly by the bios as dual core Penium D cpu. The machine worked fine 24/7/365 running linux.Now it is retired, but still works.
10-30-2017 07:37 AM - edited 10-30-2017 11:03 AM
Your machine is the Pentium 4 series, not the Pentium D series.
I found 2 PSREF M52 showing Pentium 4 640 processors.
You could look at both PSREF and decide which is closest to your 8215 D1G.
I would not expect a Pentium D processor to work at all in your machine.
10-30-2017 08:45 AM
Yes, 925 works (it is stepping D0), 830 does not. Here are some pics:
And some more pics here:
10-30-2017 11:38 PM
I am not sure I understand your reaction and how you decided that I run a shop.
If you look closely you may notice this thread is started back in 2015.
Then I've wanted to upgrade my M52 and tried 2 or 3 Pentium D CPUs until I got one that works.
Now, when I am on my M92p and came back to forums I decided to update that old thread.
Thank you for your help