kimnguyen Posted May 5, 2014 Share Posted May 5, 2014 Hi allI have a Lenovo G400 with CPU Intel Pentium 2020M , when replace it with Core i5 3210M , the laptop show the message"Unsupport CPU PCH " I try other CPU i5 3230M i7 3632QM but it's the same . Althought Lenovo G400 have some models with i5 CPUI know Lenovo have a whitelist WLAN Cad , and a whitelist with microcode CPU Anybody know how to unlock the BIOS and insert the microcode to make G400 support i5 i7 ?Thanks a lot Quote Link to comment Share on other sites More sharing options...
Kenshin Posted September 3, 2018 Share Posted September 3, 2018 (edited) 847/5000 Hello, the post is old but I hope someone find this info useful, since these notebooks are currently getting very cheap. I have the same notebook Lenovo G400 20235, [but it came with a core i3-3110m, integrated intel HD4000 and intel WiFi card], I have successfully tried an i7-3632QM and a i7-3520M, both work OK. I have also tested it with Hyperx Impact Black memories (Kingston) DDR3L 1600 16Gb kit (2x8Gb) working OK. A friend also had the same Lenovo G400 but his came with a Celeron installed, that notebook did not accept the i7, not even the i3 that I uninstalled, also did not accept the 16Gb of RAM (only accepted 8Gb, either a single module of 8Gb or two of 4Gb). I hope this helps someone. Edited September 4, 2018 by Kenshin Quote Link to comment Share on other sites More sharing options...
Average_Geek07 Posted April 23, 2020 Share Posted April 23, 2020 I hope you reply even this is a very old post! Can you recall its OS? Or what BIOS version it has? Quote Link to comment Share on other sites More sharing options...
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