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Lenovo G500 & G400 (78CNxxWW) CPU Upgrade
#1
Hello, i have lenovo with pentium 2020m.
Today i upgrade it to i5 3230m (http://ark.intel.com/products/72164/Inte...0-GHz-rPGA) but the laptop wont boot / bios boot (?) but the fan is running. (I am using windows 10 64bit)

Could you help me solve this problem?

original bios : http://support.lenovo.com/id/en/downloads/ds036474  (Version 78CN25WW(V2.03))
my mod bios : http://rgho.st/6ZnXfMCvJ
my old cpu : http://imgur.com/a/qYHlf
my mainboard : http://imgur.com/a/bEoCk


Thank You for your helps
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#2
Please describe how you made your mod.
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#3
(10-07-2016, 06:48 AM)DeathBringer Wrote: Please describe how you made your mod.

oh sorry for late reply, i request the mod in this forum and just flash it, dunno the setting. I hope you find the solution

my backup bios : https://www.sendspace.com/file/iuoh96
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#4
Open cover door (on DIMMs) under your laptop, remove all DIMMs, make and post a good foto of stickers on slots for memory.
BTW: Lenovo G400/G500/G405/G505/G410/G510 Hardware Maintenance Manual
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#5
(10-07-2016, 10:59 AM)DeathBringer Wrote: Open cover door (on DIMMs) under your laptop, remove all DIMMs, make and post a good foto of stickers on slots for memory.
BTW: Lenovo G400/G500/G405/G505/G410/G510 Hardware Maintenance Manual

this is the photo http://imgur.com/a/F7M07
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#6
I think your laptop has the motherboard with FRU=90002805. So it has support of i5-3230M (FRU=102500486) without any BIOS modification.
Try this algorithm with native BIOS:
1) remove AC jack, Main Battery, and CMOS Battery
2) remove HDD and all DIMMs
3) install new CPU
4) wait 10 mins
5) press and hold power button for 30 sec.
6) install CMOS Battery and one DIMM only, inject AC jack (without Main Battery!)
7) try to boot your laptop.
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#7
i have followed your instruction but still not booting my friend
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#8
Check your new CPU in other system. Probably it's dead.
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#9
(10-08-2016, 01:41 AM)DeathBringer Wrote: Check your new CPU in other system. Probably it's dead.

oh you are right, is the other processor like i5 3320m work on this motherboard?
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#10
i7-3632QM and i7-3612QM are recommended.
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