Acer Aspire M5100 - Upgrade CPU Athlon II x2 215

[OnLineBios]

Can this mod boot with old CPU?

I will test for tell you

Not work with Athlon 64 x2 5200+.

[OnLineBios]

I know it's not in this section of the forum but do you think it's useful to unlock other BIOS options?

I would like so much to have the knowledge to do as you....

[DeathBringer]

Please test these mods with two CPU:

• my next mod: 755A1P14_AIIx2_2xx_1062_v4.zip
  
• unlocked(?) BIOS: Acer Veriton M410 R02-B3 Overclocking 1234s282
  
• my experimental mod for many new CPU: 755A1P14_test3.zip

[OnLineBios]

Please test these mods with two CPU:

• my next mod: 755A1P14_AIIx2_2xx_1062_v4.zip
  
• unlocked(?) BIOS: Acer Veriton M410 R02-B3 Overclocking 1234s282
  
• my experimental mod for many new CPU: 755A1P14_test3.zip
  

755A1P14_AIIx2_2xx_1062_v4.zip
> with Athlon II x2 215 = OK
> with Athlon 64 x2 5200+ = Boot OK, but Windows no run (After load default in BIOS > Windows run)

Acer Veriton M410 R02-B3 Overclocking 1234s282
> with Athlon II x2 215 = no boot, no work
> with Athlon 64 x2 5200+ = no boot, no work

755A1P14_test3.zip
> with Athlon II x2 215 = no boot, no work
> with Athlon 64 x2 5200+ = no boot, no work

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I saw that there was a C2 option in Power Management Setup.
By default, it is Disabled

[DeathBringer]

Thank you for results. Use my BIOS mod v4.
I can help your with unlocking BIOS. But you must find already unlocked BIOS version R02-B3 for your system.
BTW: I said about C2-stepping for CPUs with CPUID=0x100F62, not about C2 power state.

[OnLineBios]

Thank you to you for all the time spent on this bios.