X220,T420以及W520主板修订版本为B2步进的缺陷QM67（转）
intel 6系列主板风波大家想必都知道,这批次的主板芯片组都是B2步进,很多X220,T420以及W520的笔记本用户发现自己的本本芯片组修订也是B2,是属于问题主板,但联想又声称从来都没有出厂过问题主板,那这到底是怎么回事呢?这是官方论坛上某人贴出的联想工程师的回答:
"Lenovo has not shipped B2 Sandy Bridge silicon on production ThinkPad systems. The ID being referenced returns the Intel CRID -- Compatibility Revision ID -- of the chip, not the actual chipset revision. This is a feature implemented by Intel and Lenovo on recent ThinkPad notebooks which, in order to maintain image stability required by many Large Enterprise customers, hides a chip revision change from the Operating System, such as Microsoft Windows to keep it from re-installing device drivers when it detects a revision ID change. This is a web page which describes Intel Stable Image Platform Program --http://www.intel.com/itcenter/topics/refresh/sipp.htm "
再看美国thinkpads上的讨论,最后得出的结论无外乎因为软件读到的是被厂商修改过的CRID,而不是RAID,很多爆料HP,DELL等厂商也做了同样的事情,为什么要修改CRID时说为了兼容性,上面这段也说了,防止系统在检测到标识改变后重新安装驱动.
最后,官方还给出了检测到底主板是什么步进的方法:
下载下面的程序,安装,用管理员CMD运行c:\DRIVERS\WIN\ME文件夹下的MEInfoWin.exe
http://download.lenovo.com/ibmdl ... obiles/83rf30ww.exe
Intel(R) MEInfo Version: 7.1.10.1065
Copyright(C) 2005 - 2011, Intel Corporation. All rights reserved.
Intel(R) Manageability and Security Application code versions:
BIOS Version: 8BET30WW (1.06 )
MEBx Version: 7.0.0.53
Gbe Version: 1.3
VendorID: 8086
PCH Version: 600005
FW Version: 7.1.3.1053
UNS Version: 7.1.2.1043
LMS Version: 7.1.2.1043
MEI Driver Version: 7.0.0.1144
Wireless Hardware Version: 1.1.70
Wireless Driver Version: 14.0.1.2
...
CPU Upgrade State: Upgrade Capable
如果看到红字是60005,那恭喜,是B3的,如果是600004,那就是B2 查查看{:2_53:} 查了是B3 收藏 备用。 学习了～ 用T410的飘过
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