Lenovo B570e CPU whitelist removal

[leosedf]

Hello!
Anyone knows which CPU's does it support? Right now it has a dual core celeron 1.8Ghz.

The board part number is 48.4PA01.021 and it's a Wistron LZ57.

Thank you very much.

[iPatch]

According to the marketing materials, Lenovo offers this model with up to a 2nd Gen Core i5 (see http://www.partnerinfo.lenovo.com/partne...AN2012.pdf).

The chipset appears to be a Mobile Intel® HM65 Express. Theoretically, the following processors would be supported: (pulled from http://ark.intel.com/products/52808/Intel-BD82HM65-PCH)
Intel® Core™ i7-2720QM Processor (6M Cache, up to 3.30 GHz)
Intel® Core™ i5-2540M Processor (3M Cache, up to 3.30 GHz)
Intel® Core™ i7-2630QM Processor (6M Cache, up to 2.90 GHz)
Intel® Core™ i3-2310M Processor (3M Cache, 2.10 GHz)
Intel® Core™ i5-2410M Processor (3M Cache, up to 2.90 GHz)
Intel® Core™ i7-2820QM Processor (8M Cache, up to 3.40 GHz)
Intel® Core™ i5-2520M Processor (3M Cache, up to 3.20 GHz)
Intel® Core™ i7-2620M Processor (4M Cache, up to 3.40 GHz)
Intel® Core™ i3-2330E Processor (3M Cache, 2.20 GHz)
Intel® Core™ i3-2330M Processor (3M Cache, 2.20 GHz)
Intel® Core™ i3-2350M Processor (3M Cache, 2.30 GHz)
Intel® Core™ i5-2430M Processor (3M Cache, up to 3.00 GHz)
Intel® Core™ i5-2510E Processor (3M Cache, up to 3.10 GHz)
Intel® Core™ i7-2635QM Processor (6M Cache, up to 2.90 GHz)
Intel® Core™ i7-2640M Processor (4M Cache, up to 3.50 GHz)
Intel® Core™ i7-2670QM Processor (6M Cache, up to 3.10 GHz)
Intel® Core™ i7-2710QE Processor (6M Cache, up to 3.00 GHz)
Intel® Core™ i7-2760QM Processor (6M Cache, up to 3.50 GHz)
Intel® Core™ i7-2860QM Processor (8M Cache, up to 3.60 GHz)
Intel® Core™ i7-2629M Processor (4M Cache, up to 3.00 GHz)
Intel® Core™ i7-2649M Processor (4M Cache, up to 3.20 GHz)
Intel® Core™ i7-2657M Processor (4M Cache, up to 2.70 GHz)
Intel® Core™ i7-2617M Processor (4M Cache, up to 2.60 GHz)
Intel® Core™ i7-2677M Processor (4M Cache, up to 2.90 GHz)
Intel® Core™ i7-2637M Processor (4M Cache, up to 2.80 GHz)
Intel® Core™ i5-2537M Processor (3M Cache, up to 2.30 GHz)
Intel® Core™ i5-2557M Processor (3M Cache, up to 2.70 GHz)
Intel® Core™ i3-2357M Processor (3M Cache, 1.30 GHz)
Intel® Core™ i7-2655LE Processor (4M Cache, up to 2.90 GHz)
Intel® Core™ i3-2310E Processor (3M Cache, 2.10 GHz)
Intel® Core™ i7-2715QE Processor (6M Cache, up to 3.00 GHz)
Intel® Core™ i7-2610UE Processor (4M Cache, up to 2.40 GHz)
Intel® Core™ i3-2340UE Processor (3M Cache, 1.30 GHz)
Intel® Core™ i5-2515E Processor (3M Cache, up to 3.10 GHz)
Intel® Pentium® Processor B940 (2M Cache, 2.00 GHz)
Intel® Pentium® Processor B950 (2M Cache, 2.10 GHz)
Intel® Pentium® Processor 957 (2M Cache, 1.20 GHz)
Intel® Celeron® Processor B810 (2M Cache, 1.60 GHz)
Intel® Celeron® Processor B810E (2M Cache, 1.60 GHz)
Intel® Celeron® Processor 847E (2M Cache, 1.10 GHz)
Intel® Celeron® Processor 827E (1.5M Cache, 1.40 GHz)
Intel® Celeron® Processor 847 (2M Cache, 1.10 GHz)
Intel® Core™ i5-2467M Processor (3M Cache, up to 2.30 GHz)
Intel® Celeron® Processor B710 (1.5M Cache, 1.60 GHz)
Intel® Celeron® Processor B800 (2M Cache, 1.50 GHz)
Intel® Celeron® Processor 787 (1.5M Cache, 1.30 GHz)
Intel® Celeron® Processor 857 (2M Cache, 1.20 GHz)
Intel® Celeron® Processor B840 (2M Cache, 1.90 GHz)
Intel® Celeron® Processor 807UE (1M Cache, 1.0 GHz)
Intel® Core™ i3-3217UE Processor (3M Cache, 1.60 GHz)
Intel® Core™ i3-3120ME Processor (3M Cache, 2.40 GHz)
Intel® Core™ i5-3610ME Processor (3M Cache, up to 3.30 GHz)
Intel® Core™ i7-3615QE Processor (6M Cache, up to 3.30 GHz)
Intel® Core™ i7-3612QE Processor (6M Cache, up to 3.10 GHz)
Intel® Core™ i7-3610QE Processor (6M Cache, up to 3.30 GHz)
Intel® Core™ i7-3555LE Processor (4M Cache, up to 3.20 GHz)
Intel® Core™ i7-3517UE Processor (4M Cache, up to 2.80 GHz)

Actual support, however, may vary. Best of luck

[leosedf]

Hmmmm!

Thank you for your answer!

Right now it's a celeron B830.

What do you think i should try? Does lenovo restrict CPU's? (whitelist)

Regards

[iPatch]

A Google search shows that they ship these with a Core i5-2430M. That's probably the one I would try.

[leosedf]

A Google search shows that they ship these with a Core i5-2430M. That's probably the one I would try.

Good thinking. I think i'll try that thank you very much.

[adri84dj]

Best to all,

I have a Lenovo B570e. I replaced the B815 for Intel i5-2520M. The socket and chipset support that processor, but when I boot the laptop just starts the fan. The screen does not turn on, and the hard drive LED does not light.

I also have an i3-2350M and with this the portibel works 100%

I guess the problem will be in the bios. I have the latest bios version installed, but not working.

I hope you can help me.

Thanks and regards.

[Jutzi]

I tried to upgrade my Lenovo B570e CPU from Celeron B810 to i5-2520M which is list of supported CPUs for this laptop. However, it does not boot with the new CPU. Lenovo support forum said that not all versions of i5-2520M are supported but only Lenovo special versions. Or whatever they have put to the BIOS whitelist.

I backupped my bios with the Universal BIOS backup Toolkit. It reported BIOS version LENOVO-44CN43WW (attached). Seems that this BIOS is used in several Lenevo models. However, size of the backup is 2560 kB and size of the BIOS downloaded from Lenovo support is 4096 kB. Lenovo does not offer any BIOS download for B570e but for B570, which is 4096kB.

There is a modded version of this BIOS by camiloml available in this forum here: http://dl.dropbox.com/u/45117524/bios-mo...miloml.exe (link is not working). Does this modded version still have CPU whitelist or is it removed? Would it be relatively safe to try?

[1234s282]

The i5-2520M has a CPUID of 206A7 , which the microcode for is present in the BIOS you posted (Revision 1B , Dated 2011/07/14)

There is another 206A7 microcode which has the Revision 25 Dated 2011 also, which isn't present in the BIOS you have posted.

There is also an update to the 206A7 microcode dated 2013 which may be required to add support for the i5-2520M CPU.

I wasn't able to open the 2.5MB bios or the 4MB one from Lenovo in any editor though! , i'll see if I can manually edit the BIOS with a hex editor to replace the relevant microcodes but this will be more risky.

[Jutzi]

The i5-2520M has a CPUID of 206A7 , which the microcode for is present in the BIOS you posted (Revision 1B , Dated 2011/07/14)

There is another 206A7 microcode which has the Revision 25 Dated 2011 also, which isn't present in the BIOS you have posted.

There is also an update to the 206A7 microcode dated 2013 which may be required to add support for the i5-2520M CPU.

I wasn't able to open the 2.5MB bios or the 4MB one from Lenovo in any editor though! , i'll see if I can manually edit the BIOS with a hex editor to replace the relevant microcodes but this will be more risky.

Labels of my i5-2520M.

Upper lable: SR048 J123D193
Lower label: 35123270A 1846

I don't know whether these help identifying the version.

[Jutzi]

Would be really nice if you could edit the BIOS