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Posts: 21
Registered: ‎06-24-2015
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Message 1 of 9

ThinkCentre M52 (8215 D1G) CPU Upgrade - will a Pentium D 830 SL8CN (3 GHz) work?

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.

 

Thanks

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Message 2 of 9

Re: ThinkCentre M52 (8215 D1G) CPU Upgrade - will a Pentium D 830 SL8CN (3 GHz) work?

Well, it didn't worked Smiley Sad

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..

 

Thanks

 

 

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Message 3 of 9

Re: ThinkCentre M52 (8215 D1G) CPU Upgrade - will a Pentium D 830 SL8CN (3 GHz) work?

The stepping needs to be the same as the Lenovo installed processor.

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Message 4 of 9

Re: ThinkCentre M52 (8215 D1G) CPU Upgrade - will a Pentium D 830 SL8CN (3 GHz) work?

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.

sclexman
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Message 5 of 9

Re: ThinkCentre M52 (8215 D1G) CPU Upgrade - will a Pentium D 830 SL8CN (3 GHz) work?

Your machine is the Pentium 4 series, not the Pentium D series.

I found 2 PSREF M52 showing Pentium 4 640 processors.

set 2.PNGset1.PNG

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.

 

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Message 6 of 9

Re: ThinkCentre M52 (8215 D1G) CPU Upgrade - will a Pentium D 830 SL8CN (3 GHz) work?

Well, that is correct, it was Pentium 4 machine.

But now it is Pentium D 925 and it works.

 

 

 

 

sclexman
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Message 7 of 9

Re: ThinkCentre M52 (8215 D1G) CPU Upgrade - will a Pentium D 830 SL8CN (3 GHz) work?

Please clarify.. the 830 does not work but a 925 does work, both Pentium D?

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Message 8 of 9

Re: ThinkCentre M52 (8215 D1G) CPU Upgrade - will a Pentium D 830 SL8CN (3 GHz) work?

Yes, 925 works (it is stepping D0), 830 does not. Here are some pics:

cpu_z.jpgcpu-z

And some more pics here:

https://photos.app.goo.gl/zN2Pn0tsfyza0Ixy2

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Message 9 of 9

Re: ThinkCentre M52 (8215 D1G) CPU Upgrade - will a Pentium D 830 SL8CN (3 GHz) work?

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

 

 

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